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Author Topic: I don't believe it, another classic added => Centipede ! FINISHED !!!!  (Read 42068 times)

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Level42

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I can't believe it.....I just bought my third classic cab within 3 months time.....I guess it's a collection now :D

I had to promise to my wife that this was the very very very last one (it is.....for now :P)

Well after a Bally-Midway, a Nintendo....it was time far my old-favorite brand Atari.

I don't know what it is, but it's like the classics are popping up all over here all of a sudden, is it the time of year ? ;)

A Centipede appeared on offer, and after some negotiation, we agreed on the price.

The game plays, but there's no picture. So it will probably need a new monitor TV :D
I will also need new buttons (they put some ugly things on there) and I don't know the condition of the trackball...But the overall condition looks to be very good :)

Here's some pics:



[Edit] Something I saw someone else do: A checklist of all the things still to be done on a project. Great idea !

So here goes for my "Honderdpoot":

-Exterior:
- overall cleaning
- CPO restoration
- replace coin door with spare I already have

- CP:
- Trackball: -replace ball (for now, red-translucent I had in stock, check/clean/fix/replace bearings and rollers
- Buttons: -replace fruitmachine buttons by repro vulcano's (on stock) and a leaf button & LEAFswitch

- Interior:
- recondition Power Brick and AR2 (parts in stock)
- examine/remove weird extra wiring at CP/coindoor
- repair PCB (3x :) )
- examine/repair monitor (G07) need to order kit from Bob Roberts...or replace with a TV

« Last Edit: May 25, 2008, 02:27:23 pm by Level42 »

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Re: I don't believe it, another classic added !
« Reply #1 on: February 26, 2007, 01:32:38 pm »
And some more....


ChadTower

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Re: I don't believe it, another classic added !
« Reply #2 on: February 26, 2007, 01:34:31 pm »

Centipede is one of the true greats.  Congrats.

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Re: I don't believe it, another classic added !
« Reply #3 on: February 26, 2007, 01:35:20 pm »
Is that original artwork? If so, then awesome deal...depending on what you paid of course. ;)

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Re: I don't believe it, another classic added !
« Reply #4 on: February 26, 2007, 01:46:02 pm »
Thanks :) I'm almost in heaven.... :D

Yes, I bet it's completely original.....

I added a closer-up pic of the front....check out the buttons :D
Some rust around the track-ball.

It's so funny. I actualy competed at the finals Dutch pre-rounds for the Atari World Championship on the Atari 2600 (I think it was 1983). I became 4th in the under 18 section....so no worls championships for me (it was in Italy then).
The game was Centipede. I had to rent the cart to practice.... :D

I hated the controls of the 2600 version of the game.

When I get to restore it, it will be the very first time I'll play centipede with a Trackball !!!!!!!!!

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Re: I don't believe it, another classic added !
« Reply #5 on: February 26, 2007, 01:50:44 pm »
You are going to HAVE to ---steaming pile of meadow muffin----can those funky Fruit machine buttons and get a couple of Vulcano's for P1 and P2 and a Happ for fire.

Nice find...the monitor may be fixable as well (G07 perhaps?)...

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Re: I don't believe it, another classic added !
« Reply #6 on: February 26, 2007, 01:54:15 pm »

Get a glowing red button for fire.  No point in not upgrading a little while you're in there.

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Re: I don't believe it, another classic added !
« Reply #7 on: February 26, 2007, 01:55:52 pm »

Get a glowing red button for fire.  No point in not upgrading a little while you're in there.
Haha, naaaaaah, if you've read my other threads....you know I'll go for 100% original.....(as much as possible :D)

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Re: I don't believe it, another classic added !
« Reply #8 on: February 26, 2007, 02:03:34 pm »
You are going to HAVE to ---Cleveland steamer----can those funky Fruit machine buttons and get a couple of Vulcano's for P1 and P2 and a Happ for fire.

Nice find...the monitor may be fixable as well (G07 perhaps?)...


Hah, that was the very first thing I thought when I saw that picture !
Seller says the game worked fine until 2 years ago when they moved....could be a simple loose contact or complete breackage of the CRT, or something inbetween those :P
 There IS game sound, so the PCB is working (important !). If the monitor IS dead, a simple 51 cm TV will do the trick again (see my Galaxian thread). SCART rocks !

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Re: I don't believe it, another classic added !
« Reply #9 on: February 26, 2007, 02:07:26 pm »

That doesn't indicate that the PCB is 100% working.  If there's no video the video circuit could be shot in any of a number of ways.  It's a good sign, yes, but there could easily be work still needing to be done.

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Re: I don't believe it, another classic added !
« Reply #10 on: February 26, 2007, 02:15:32 pm »
Yes, very true...I'll just have to see when I pick it up.

Did you guys notice anything about the bezel ?

So far, all bezel's I've seen have green insects on the top and a blue/geen mushroom on the bottom....

Here both are red !

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Re: I don't believe it, another classic added !
« Reply #11 on: February 26, 2007, 02:16:59 pm »
Take a look at your marquee too...is that a reflection or is it much more PINK thank it should be?

Here is a marquee from KLOV:

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Re: I don't believe it, another classic added !
« Reply #12 on: February 26, 2007, 02:30:22 pm »
Yeah I just noticed that as well......but what is right ? It could be discolored over time as well of course....
Miscolorings are the biggest problems with repro art afaik.

If you check out the Mario Bros side (http://www.localarcade.com/arcade_art/search.php?show_result=1&page=4), I can see color differences with those on my cab. F.I. the turtle on the lower left is really very (dark) blue on my cab. I expect that my side art is original Nintendo, but not 100% sure of course.....anyway, these color difference are there.

However, blue/red is a different thing....I found one picture on the net with the same colors as this one...maybe it was for the European version only (this one was built in Ireland).

Another detail: there are Atari  coin-inserts with F1,- (1 guilder) on them :) This one has spent it's life in the Low Lands from the beginning I guess....

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Re: I don't believe it, another classic added !
« Reply #13 on: February 26, 2007, 02:47:51 pm »
The greener version is the correct version for here in the states...I can confirm that.
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Re: I don't believe it, another classic added !
« Reply #14 on: February 26, 2007, 02:53:02 pm »
Makes it all the more interesting ! I do think this cab is original apart from the buttons. (The coin door looks to be without paint, which is a bit weird).  We'll see it when I get it....

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Re: I don't believe it, another classic added !
« Reply #15 on: February 26, 2007, 03:48:16 pm »
I just noticed your side art also has the pink color around the edges,  while the US versions seem to all have yellow around the edges.   I bet it's country specific or something.

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Re: I don't believe it, another classic added !
« Reply #16 on: February 26, 2007, 04:11:59 pm »
Yep, KLOV already mentions pink and yellow. But I've read there's blue too....

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Re: I don't believe it, another classic added !
« Reply #17 on: February 27, 2007, 08:46:38 pm »
NO WAY  :o

ANOTHER ONE ?????  ;D you just got the "arcade fever" my friend  :applaud:

this one look great , nice artwork  8)

congratulation ......

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Re: I don't believe it, another classic added !
« Reply #18 on: February 28, 2007, 01:06:19 am »
Thanks, you could say that again ! I feel very lucky. I first didn't want to get this, because I bought the other two so recently. Then I thought it was a very rare chance and the fact that it was in such nice condition....

I will stop now, plenty of restoring to do on this one and the Mario Bros......and the Galaxian still...

FrizzelFried, check out this:
http://www.ggdb.com/GameByName.aspx?vid=503

Here you see both the bezel and the marquee in "my" colors.

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Re: I don't believe it, another classic added !
« Reply #19 on: February 28, 2007, 05:50:50 am »
Ah! I've seen this one at Marktplaats ^^
Looks great, congrats :D
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Re: I don't believe it, another classic added !
« Reply #20 on: February 28, 2007, 03:52:25 pm »
Ah! I've seen this one at Marktplaats ^^
Looks great, congrats :D
SSsssssssssssssssst !

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Re: I don't believe it, another classic added !
« Reply #21 on: February 28, 2007, 11:18:26 pm »

Get a glowing red button for fire.  No point in not upgrading a little while you're in there.
Haha, naaaaaah, if you've read my other threads....you know I'll go for 100% original.....(as much as possible :D)

I've always been a stickler for keeping  classic cabs original but for some reason I've always liked the idea of a Centipede with a lighted translucent red leaf switch fire button and a lighted translucent red trackball. I always thought that Atari should have gone that route.
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Re: I don't believe it, another classic added !
« Reply #22 on: March 01, 2007, 01:03:15 am »
I don't think there were any translucent trackballs and firebuttons in those days ?

Yeah it sounds kinda cool...we'll see. First I have to get the Atari Cones and buttons....

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Re: I don't believe it, another classic added !
« Reply #23 on: March 01, 2007, 05:58:59 pm »
OK guys, I just brought the Centipede home. No game sounds as promised by the seller however.....

Can it be that I hear a RELAY switching when powering it up/down (!?!?!)

There were no keys (hey, what's new), so I drilled out the back lock. Nice, on the inside of the back a big sheet full of instructions etc. :) Also, the original plastic bag with ALL the documents, incl. G07.

The G07 is still there.....no picture though....

I wanted to check the main fuse....it's ok, but I can't seem to get it back in !!!! Must be something holding it down (It's a screw in type fuse-holder) but it won't stay down ! Just removed the power supply to be able to work on it better....

The guy who installed the new buttons apparantly did some trick to get credits using the player 2 button....bad wiring !
There are completely no coin mechs !




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Re: I don't believe it, another classic added !
« Reply #24 on: March 01, 2007, 06:04:46 pm »
Some quick pics...

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Re: I don't believe it, another classic added !
« Reply #25 on: March 01, 2007, 06:05:57 pm »
More...

1st: Dutch License....1989 !

3rd: silver coin door ?

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Re: I don't believe it, another classic added !
« Reply #26 on: March 01, 2007, 06:07:29 pm »
More..


1st.....the trackball feels completely worn out....

2nd: Both sides side-art in excellent condition.....this is uncleaned !!

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Re: I don't believe it, another classic added !
« Reply #27 on: March 01, 2007, 06:09:33 pm »
More...

1st: Very nice, completely intact instruction sheet on inside !

2nd: This one has been in a barn for some time....lots of REAL insects/spiders !! :)

3rd: G07, no neck-glow.....

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Re: I don't believe it, another classic added !
« Reply #28 on: March 01, 2007, 06:11:14 pm »
More...

1st: Original docs, all there !

2nd: PCB......LED works.....nothing else.....no test-mode....nothing :(  !!

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Re: I don't believe it, another classic added !
« Reply #29 on: March 03, 2007, 05:10:35 pm »
Today I made a quick (temporary) SCART connector for the Centipede and connected it to a small TV. The screen is total garbage, full of chracters from the game. The spider is there, parts of the centipede, I can see a couple of shooters...when the game is first started after been off for some time there's a lot of noise coming from the speaker that doesn't make any sense. then it quickly dies out.

I was lucky that the Atari engineers included a combined sync even though the G07 uses seperate H- and V-sync signals....made it easier to connect to the SCART on the TV.

The picture is weird though, black and white, seems inverted. Does Centipede use inverted singals like Donkey Kong ?

So it seems the board simply doesn't run. Any way to check clock signals coming from the crysta with a DMM ?

I cleaned all corroded pins on all IC's.(some seem totaly clean, others are corroded...strange). Also cleaned the PCB edge contacts. Removed all IC's that were socketed and put them back in.
Checked all the voltages (man, how many are there !) and all are present and OK.

Any help much appreceated !
« Last Edit: March 03, 2007, 05:12:28 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #30 on: March 04, 2007, 02:10:09 pm »
No-one ?

I've got an old Atari 800XL here with all chips socketed. I think I could try the 6502 and Pokey of it in the Centipede PCB. Centipede uses a 6502A on 2Mhz afaik. The Atari runs at 1,79 Mhz but I'm not sure if it's a 6502 or 6502A.

I've been thinking about the glowing red button suggestion and illuminated track-ball. I think I may end up putting a GGG Ice button and Ice trackball. This way, it looks pretty original when unlit, but very special when lit :)  Best of both worlds. I will use a leaf on the end of the ICE button though, NO microswitch, can I still light it up OK with the leaf ?

Two pictures: What a mess under the bezel !  I cleaned the monitor and I am 100% sure this was the very first time in it's life !

This sticker was put on the bottom of the bezel.....
Translation:

AMUSEMENTGAME

Only for amusement and time-passing (don't think this is a good Dutch word). If you get a certain combination you can play on for free several times.

MONEY, PREMIUMS OR GOODS ARE NOT DELIVERED

only for persons above 16 years


Especialy that last line made me laugh.....

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Re: I don't believe it, another classic added => Centipede !
« Reply #31 on: March 04, 2007, 02:15:19 pm »
Alleen voor boven de 16  :laugh2:
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Re: I don't believe it, another classic added => Centipede !
« Reply #32 on: March 04, 2007, 02:27:49 pm »
Alleen voor boven de 16  :laugh2:
yeah....I think it's due to the extreme violence of shooting that poor centipede and spiders and scorpions  :laugh2: :laugh2:


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Re: I don't believe it, another classic added => Centipede !
« Reply #33 on: March 06, 2007, 09:56:54 am »
Arcadeshop has a lot of stuff for Centipede, including the monitor bezel, CPO, etc. I don' t know if they can ship it to you, though.

You might check for bulging electrolytic capacitors on your PCB. Some of those go bad after a while. Try looking at the schematics to see what parts of the board control sound, and concentrate on those areas.

Also, you might want to consider changing the power supply for a modern switching power supply. Old power supplies can be flaky and there might be more hacks in the supply than what you have discovered already. It's also possible that your monitor isn't getting power, but the monitor might also just be dead.

Try consulting with Ken Layton regarding other repair hints.
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Re: I don't believe it, another classic added => Centipede !
« Reply #34 on: March 06, 2007, 11:27:13 am »
His voltages are all good. Why would you recommend installing a switcher?

For durability, a Bob Roberts rebuild kit on the AR-II and a new Big Blue will keep it running for many more years. (Plus the "Sense" mod that some recommend).
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Re: I don't believe it, another classic added => Centipede !
« Reply #35 on: March 06, 2007, 11:39:11 am »
His voltages are all good. Why would you recommend installing a switcher?

For durability, a Bob Roberts rebuild kit on the AR-II and a new Big Blue will keep it running for many more years. (Plus the "Sense" mod that some recommend).


My sound was scratchy with pops when first powered up before I swapped the PS on my Galaga with a switcher. Plus, L42 mentioned problems with his power supply.
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Re: I don't believe it, another classic added => Centipede !
« Reply #36 on: March 06, 2007, 01:30:27 pm »
A switching power supply is not a real option on the Centipede cab. You won't believe all the exotic voltages that are coming from the ARII:

To coindoor:
6.3VAC
10.6VAC

To PCB:
+5VDC
- 5VDC
+22VDC
-22VDC

From Mains supply to AR2:
36VAC
10,6VDC

And indeed, I measured all voltages  on the PCB and they are fine.

I will probably only need to replace the CPO, all the other artwork is still great

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Re: I don't believe it, another classic added => Centipede !
« Reply #37 on: March 07, 2007, 03:54:11 am »
Hi Level42.


Congratulations....a really nice cab and also one of my favorites :)


If you need buttons and cones...I have some (the cones are repros made of black anodized alu, I have some low cones and high cones left).

You are from Netherlands if I do remember right, so shipping from Germany would not be expensive.....wait a moment.....2,50 in a padded envelope.


You can take a look here: http://forum.arcadecontrols.com/index.php?action=dlattach;topic=57445.0;attach=64437;image
The rough one is the original cone. As another guy mentioned you can kick them around in the car park to make them more rough...consider yourself ;)



Tell me if you need some. Price is 3 for one cone and 6 for a used lit switch or 10 for a new one.

« Last Edit: March 07, 2007, 03:56:01 am by Luigi »

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Re: I don't believe it, another classic added => Centipede !
« Reply #38 on: March 07, 2007, 08:29:26 am »
Hi Luigi,

Ja du hast recht, ich bin Niederlander !

Thanks that's fantastic ! Yes I definitly need two cones and switches to replace the horrid fruitmachine buttons that are there now.

From the pictures I've seen of most Centipedes I think the high smooth cones were used on it ?

I guess  the used switches are fine, they don't get that much action....

Yes I order 2 high cones with 2 used switches. Do you accept PayPal ? Else I can do a international banktransder if you provide me your BIC and IBAN info.

So that would be 20,50 total ....

Vielen Dank !

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Re: I don't believe it, another classic added => Centipede !
« Reply #39 on: March 07, 2007, 12:38:50 pm »
Level42,

You have a ram problem with that board.  There are several chips on it.  Ask Bob Roberts for a complete set of Ram.  There are 2 2114's and 5 other ones (I forget).

Replace them all.  You might want to ask for another CPU to be sure.

You are looking at maybe $20 for all that.

You don't need to add a switcher.

I have a board that works and I have a set of those cones.  ;)

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Re: I don't believe it, another classic added => Centipede !
« Reply #40 on: March 07, 2007, 02:42:50 pm »
Hey Fredster thanks for that info !

I don't guess I can still get those oldy RAMs around here... I think I'm going to have to do a pretty big order with Bob Roberts (Big Blue, trackball parts etc.), the only problem is it's very hard to order from Bob from outside the US. He doesn't accept PayPal or CC, which both are my options for international orders.

Do you think the 6502C from an Atari 800XL will work (just to check)....I got one here. I read the C has one extra pin that should be kept high to enable it. Think that's the only real difference.

Well the easiest thing would be buying your board of course, but something is telling me I ought to try and repair this one. Not for the money really, but, you know, a saved board is another saved board.... :)
I'm pretty good in electronics, but it's not my daytime job to hunt down digital PCBs, but I do want to give it a try. I will definitly need that oscilloscope (wish I had an Atari CAT box :) )

Your knowledge and experience could really help me out Fredster :) ! Until march 28th, I'm really very tied up with other things in my spare time, so it'll take a little while before I start on the Centipede. I also want to finish the Galaxian ASAP. Thanks about the cones Fredster, but I already got some from Luigi, see his kind offer :) But thanks anyway...

I love this forum !!!  :cheers: :applaud:

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Re: I don't believe it, another classic added => Centipede !
« Reply #41 on: March 07, 2007, 02:58:35 pm »
So far, I've only checked the voltages on the PCB test points and they seem to be fine. What I did do, was change the plug on the power supply. My power supply is the European version. By changing the plugs, you select the voltage it operates on. It was on 220VAC when I got it. However, in recent years, the mains voltage has been increased to 230VAC on mainland Europe. (UK lowered it from 240VAC to also 230VAC). This to reach one standard voltage within Europe. The result was that some voltages were a bit on the high side (not the regulated one's of course, f.i. the 5V was 5.01 Volts).

So I switched it to the 240V connector and that lowered things a bit.

Still the same thing on screen.....just random characters from the game like centipede parts, spider, mushrooms, shooter etc. and they are standing still. The reset button has no effect (I checked it, the button itself works fine). I removed all socketed chips, and re-inserted them. There have been IC's replaced on the board, I can see that from soldering marks. Solderings look ok generaly. Could there also be problems with the sockets (corrosion ?) the pins on the socketed IC's looked very clean though..

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Re: I don't believe it, another classic added => Centipede !
« Reply #42 on: March 10, 2007, 06:24:00 pm »
OK I did some research about the RAM on the Centipede PCB's. I made a small Excel file that's attached here.

There's something strange about the RAM chip on C8 position. It's mentioned as 82525 or B2525 on the manual but there's a 6560N on my PCB.

I also found another source for those chips: www.arcadechips.com has everything but the 6560N. They have an on-line ordering system, ship international AND accept PayPal.
Price's are right too. They also have 6502 and even Atari's Big Blue.

The Service Manual mentions that the board "shows" any RAM errors with beepcodes (was Atari ahead of it's time or not ? :) ) There's a range from 1 to 10 each indicating for a certain RAM that MAY be bad.
"Any bad RAM  must be replaced before the computer can check the other RAMs, as well as continue with the self-test." (Service Manual quote)

Now I don't hear any beeps. In fact, I only hear a scratching sound when powering up the cab when it's been off for a while. If I turn it off and switch it back on again after 10 seconds there's no sound at all...(elco's ?)
I could monitor the sound on the test-points to see if there's any beeps to be heared.

But I think I will order a full set of RAMs anyway...they're cheap enough...

I don't have a logic probe, but I do have an Oszifox. This is a pen-shaped measuring device, that's actualy a tiny osciloscope.
http://www.wittig-technologies.com/english/05_products/01_oszifox/oszifox_01_intro.htm

The bandwidth is only 5 Mhz, but that should be enough for a board running on 2 Mhz. You can connect this to a PC (regretfully not Mac) via RS-232 and run scope software. I didn't do that (yet), there's also a small display on it that shows the waveform etc.

So I poked around with it on the board. Sure enough there's a clock signal and I've checked many pins on RAMs, 6502 and Pokey. All show lines going high/low. So there's definitely life in it :)

I also hooked up my DVM in diode-test (yes I did power down the PCB first :D) and measured to ground all pins of RAMs that are on the board in 2 or more to compare. All the 2101/9101's showed identical values. However, on the 2114's I got different results on some pins...

Pin 13 and 14 show different values between H2 and F2. Could this indicate a bad ram ? The lines on those pins go straight to E2 that is a 74LS245, a bus transmitter/receiver. Here I measure the same "wrong" values on pin 6 and 7 (which is logical of course). So, the 74LS245 could also be bad...any suggestions before I desolder the pins to check this out ?
« Last Edit: March 10, 2007, 06:26:59 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #43 on: March 11, 2007, 12:48:11 pm »
Wow, so much work, $$ and shipping, with no guarantees, when you could just buy a working board.
NO MORE!!

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Re: I don't believe it, another classic added => Centipede !
« Reply #44 on: March 11, 2007, 03:56:04 pm »
Well, a working PCB would cost me almost $100,- incl. shipping.

The RAM's will be a lot less. I THINK I am on the right track, if so, I would only need a single 2114....at $1,60 (anyone has a spare ?).
In all honesty www.arcadechips.com has a minimum order of $15,- but I will probably throw in a Big Blue anyway and that's $11,- already. Include an extra 2114 and an extra 2101 or two and I'm at the $15,-. Shipping is only $5,- USPS ground (I'm in no rush). So that's about $20,-

Also, there's 2 more reasons to do this:
1) The challenge
2) The fact of saving a Centipede PCB

I know that both will give me a kick IF I get the board back to life :)
Throwing away a PCB that has only 1 bad chip would make me feel bad :D

Indeed, there's no guarantees, but I like to learn ! Maybe I will regret it later, but at least I've tried then...

[Edit] Think about this: I could have bought a completely restored and working Centipede cab for, let's say $1800.- and have it shipped here for another....let's say $400,-

Besides not having the money for that, there's no glory in it.... restoring the game is at least as much fun as playing it...
« Last Edit: March 11, 2007, 05:42:27 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #45 on: March 11, 2007, 07:29:01 pm »
Besides not having the money for that, there's no glory in it.... restoring the game is at least as much fun as playing it...

I couldn't agree more. I have a Defender and a Galaxian that I'm working on right now, and would probably break even on the Defender if I were to sell it but the experience and the fun I have had far outweigh the cost to me.

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Re: I don't believe it, another classic added => Centipede !
« Reply #46 on: March 11, 2007, 11:20:26 pm »
Wow, so much work, $$ and shipping, with no guarantees, when you could just buy a working board.

RayB, He wants to learn how to fix these things.  I fixed a few of them, and it's really rewarding.

Level42, you are on the right track, but it's not brain surgery.  I doubt if it is very much that's wrong with it.  Those Ram Chips are the most common failure.  Replace those chips with seats and plug them in. 

It could be a +5V problem if it isn't the ram chips.  The 12V is for the audio. You won't know if it's working until you can coin it up. It should have beeped.  But put it into test mode after you replace the chips.  Try it AFTER every chip!

I hope you found some more repair logs - Mike's arcade knows a lot about this: http://www.mikesarcade.com/arcade/repairs/centipede.html

You did ask the "elders" on the RGVAC?

One other tip:  Those old boards get really sensitive to soldering.  The chips are rotted to the board sometimes and you can pull up the traces when you take out the chip.  UGH I hate that.  Make sure you get rid of all the solder before you start tugging at it.  Check the continuity of the traces after you put the seats in to make sure they connect where they are supposed to.

That looks like a Ram error to me.  Check the history on the RGVAC.


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Re: I don't believe it, another classic added => Centipede !
« Reply #47 on: March 12, 2007, 02:27:25 am »
Yep Sfracella and Fredster are right.  I doubt the 5V is a problem, it's VERY good still after all this time (5.01 Volts on my Fluke DMM). There's also almost no ripple on the DC supply voltages, so I actualy wonder if the Big Blue needs replacement....well It coulnd' hurt I guess for just 11 bucks...

Yes I found the repair guides on Mikes Arcade, but none of the Centipede one's are about my problem as far as I read.

Indeed the RAM chips seem to be fragile, there are already three on my PCB replaced before.

I aksed some questions to arcadechips and will then order a nice set of RAMs...

Thanks for all the help Fredster !

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Re: I don't believe it, another classic added => Centipede !
« Reply #48 on: March 12, 2007, 05:29:40 pm »
Incidently found a lot of Centipede Repair info here:

http://www.2coinsperplay.com/Tech/Video/repairs/repair%20Logs/Centipede/Centipede%20Repair%20Log.html

And there's also a good general write-up of Videogame PCB repair:
http://www.2coinsperplay.com/Tech/Video/Hints%20on%20repairing%20arcade%20boards.html

If you read the section about bad RAM, you can see this is exactly "my" problem...great...
« Last Edit: March 12, 2007, 05:44:55 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #49 on: March 12, 2007, 05:58:36 pm »
Level, is it safe to assume at this point, that you've given the board a proper scrutinizing, looking for broken traces, broken capacitor legs or missing caps? Bad/Broken caps feeding power to the RAMs will also result in RAM errors.
NO MORE!!

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Re: I don't believe it, another classic added => Centipede !
« Reply #50 on: March 12, 2007, 06:44:31 pm »
Level, is it safe to assume at this point, that you've given the board a proper scrutinizing, looking for broken traces, broken capacitor legs or missing caps? Bad/Broken caps feeding power to the RAMs will also result in RAM errors.

Mmmm, well I did a lot of looking at the board, but didn't specificaly look for that. However, since the two lines that run directly from one of the two 2114's to the bus driver (74LS245) mearure very differently to GND then all the others I think that one of those 2114 is the cause for the problem.

The 2114's are first in the memory map of the Centipede PCB, and the service manual (and self-test beeps) check these two rams first. This added to the info Fredster gave and the info  I found on 2coinsperplay.com leads me to being pretty sure about this....

However, there is a good chance that there may be more problems of course. By looking at the sodlerings you can easily identify if any chips have been replaced already. Three chips of the "main" (Playfield) RAM had already been replaced. However these all measure the same on the same leads per chip. So I expect them to be OK.

There were two or three other chips replaced as well, and the soldering job looked not too good, so I tried re-flowing it. I instantly learned from that that soldering an old PCB like this is a risky and delicate job. The old flux seemed to be baking away !

Anyway, it's definitly worth visiualy checking again the PCB and the parts for any other problems for sure.

I'd love to have a CAT-box ! It shouldn't be too hard to "emulate" one with a PC and some hardware should it ?

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Re: I don't believe it, another classic added => Centipede !
« Reply #51 on: March 12, 2007, 08:19:00 pm »
I'd love to have a CAT-box ! It shouldn't be too hard to "emulate" one with a PC and some hardware should it ?
That's a good question. They are rare and fetch a high price on Ebay. I have not ever heard of anyone trying to build their own.
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Re: I don't believe it, another classic added => Centipede !
« Reply #52 on: March 13, 2007, 02:22:16 am »
I'd love to have a CAT-box ! It shouldn't be too hard to "emulate" one with a PC and some hardware should it ?
That's a good question. They are rare and fetch a high price on Ebay. I have not ever heard of anyone trying to build their own.

Yeah, but I think the high price is based mostly on the collecting value. I have seen someone who had some plans about it, but it seemed to have never materialised.

I must be missing a lot, but as far as I understand, basicaly you put adresses on the adress bus and write data to it that then gets read back and compared. You can also put in a range and the have it pulse through all the adresses in that range and compare....looks pretty simple to me,but although I'm an electronics service man, I'm not an electronics designer :)

It would be a powerful tool and a fun project.

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Re: I don't believe it, another classic added => Centipede !
« Reply #53 on: March 19, 2007, 05:26:34 pm »
I ordered a set of all sort of RAMs that are on the Centipede PCB plus the buffer IC and the High-Score memory from www.arcadechips.com
Ordered yesterday, shipped today  :applaud:

The IC I could not identify turns out to be a 82S25 and not a 82525....this is also available at www.arcadechips.com

Hope it will solve the problem !

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Re: I don't believe it, another classic added => Centipede !
« Reply #54 on: March 20, 2007, 09:53:44 pm »
Level42,

I screwed up more than one trace by soldering an old area.  You have to check continuity of each of the traces around the chips.  Somebody may have screwed up the repair and gave up on it.

Check each one and then make sure it's good.  They are pretty big traces.  Use the multimeter to track them down from edge to edge and see if they are okay.

It's easy to fix if you find one dead, get that really small wire at an electronics store that's made for this.  All you have to do is touch it to the trace and you have a new one.

Go ahead and look at the board.  Really really look at it with a magnifying glass and a bright light.  Look at each repaired area and see if you see anything that is burnt or lifted.  That could be a problem.

Most of the time, you can see what's wrong.  You may have a dead trace. One that was okay for a while, then went bad later in use.
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Re: I don't believe it, another classic added => Centipede !
« Reply #55 on: March 22, 2007, 02:52:14 pm »
Well the RAM that I suspect is defective is still the original. It has the original solderings that is not tampered with and looks fine. I've closely examined it and did conductivity tests.

The chip I mentioned was near the PCB connectors. I tested that also after re-flowing the solder and the connections were fine still.

I'm now waiting for the RAMs and other chips to arrive from www.arcadechips.com

The have good prices compared to what you see on e-bay !

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Re: I don't believe it, another classic added => Centipede !
« Reply #56 on: March 24, 2007, 08:41:33 pm »
Dude...you gotta let me trade notes with you!

I just had a cab laid on me that was supposed to be Capcom's "Avengers".  I finally deducted from the screen burn-in that it's Centipede, and after seeing your images, there's no question that is what I have on my hands!

My camera is at the office, but at my next opportunity I'll take pictures...but be warned, they will disgust you.

There's droppings inside the cab, coin mechs are hosed, monitor is burned in...they tried to use some sort of clear epoxy to fill in the old trackball hole, and painted over the original art with some weird gray primer.  Scraping away the gray I can kinda-sort see the old art.  You think your restore is going to be tricky????

Pfft. :P
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Re: I don't believe it, another classic added => Centipede !
« Reply #57 on: March 25, 2007, 10:43:47 am »
Huh.  Went and scraped some of hte paint off last night, and my side art has the pink outline instead of yellow as well.

This is getting weird.   I need to get my camera from my office and take some pictures before I do too much more to this.
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Re: I don't believe it, another classic added => Centipede !
« Reply #58 on: March 25, 2007, 03:52:39 pm »
Yeahhh, we want pics ! :)

I never said that my Centipede needed a tricky restore (that's also why I paid a reasonable amount for it). To list it up:

1) Monitor repair or replacement. I think I may try a repair again, just for the originality and the burn-in is not too bad. I like that grey looking CRT :)
Plus a G07 should be pretty easy to repair with a repair-kit from Bob Roberts.

2) PCB repair. Could be hard,could be easy. I think I already found one problem. IC's are on their way across the Atlantic...

3) New CPO.....a no-brainer

4) Start buttons and cones, ordered from Luigi in Germany, should be on their way....

5) Controls.....I think I will get that Ice-button thing from GGG. And also a nice Ice Trackball. And then light it all up in red. Looks pretty original when off, and funky when on.....

6) New Coindoor. Mine is not that bad but there IS a dent in it and I got one offered here in The Netherlands for a trade. Will probably pick it up the end of the week.

7) Very likely I will treat it with some new T-molding.

8 ) Trackball. This could either be some good cleaning or new barings and rollers...probably the last one while I have to order the monitor repair kit from Bob Roberts anyway...

9) Install and re-wire a coin mech.

10) Lotsa cleaning :D


Mmmm, still pretty much when listed up like that :)

I'm waiting with ordering the parts listed because I want to finish the Galaxian first and I might....might....might be getting another cab......gulb.....yes I mean it. And I have no CLUE where to store it until my Game Room is materialised.......but if I will get it, I will have a pretty unique collection for the low countries IMHO :D

I'm not sure but I think here in Europe cabs were not so much converted as in the US. The cabs I've seen on offer so far here are almost all in their original state, or they are generic (Royal Video/Playscene) cabs.

My Galaxian was previously owned by a dentist who had it in his waiting room. Now that's a dentist I would like to go to, but what if you're working on your high score and it's your turn for "the chair" :D The cab has been in commercial use though, since there's a license plate from 1989 on it....I always like to know something of the history of the cab....

Too long posting I know....but I haven't had time to do anything on my projects lately so this is probably some compensation :D
« Last Edit: March 25, 2007, 03:56:18 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #59 on: March 26, 2007, 04:20:11 am »
Hey Centipede lovers, check out this one:
eBay Link

Look at that CPO ! Is that a Willis clone or something ? Doesn't really show well on this pic, but it looks kinda cool !

[Edit] Oops: http://forum.arcadecontrols.com/index.php?topic=21614.0
So yes it's a Willis. I wonder if it's in that big bag of Arcade Art from classicarcadegraffix.......

Not that I will use it.....gotta keep it original. I kinda like the Centipede figure, but it's too clear it's not like the original art....
« Last Edit: November 03, 2007, 11:39:27 am by Peale »

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Re: I don't believe it, another classic added => Centipede !
« Reply #60 on: March 26, 2007, 09:31:16 am »
Hmm.  The art and CPO on mine is completely shot.  I'm going to make every effort to stay original on mine, but I'm not going to go too nuts on it.  If something is "close enough", then  I mia just run with it.  It's not going to be original, no point in trying to force it.  As a result, I may go with the ICET trackball, so long as it works, and perhaps a lit fire button. :D

I'll try to remember to bring my camera home today.  Here's my shopping list:

Trackball
Centipede Mainboard
Marquee
Power Supply (pretty sure it's not the original, but not certain.)
Side Art
Kilz (for the insides...it *STINKS*!)
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Numbski

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Re: I don't believe it, another classic added => Centipede !
« Reply #61 on: March 27, 2007, 11:06:38 am »
I never made it to my office yesterday.  I have to today (in fact, I'm headed there now), so pictures this evening. :)

Question - the side art on this thing is shot, without question.  I'm thinking that I should go ahead and use citristip, sand, bondo any damage, prime, sand, prime, sand, perhaps a coat of white, sand.   The side art is a full cover, right?  Or should I get a good base of white, presuming that the repro-art is just the graphics that I need to center on the sides?  :dunno
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Re: I don't believe it, another classic added => Centipede !
« Reply #62 on: March 27, 2007, 02:34:21 pm »
IMHO it should be a full cover, just like the original. Check out http://www.retrospieler.de/
Allthough this is a repro cab, he did use the fuil side-art. Gotta cut it into shape yourself.

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Re: I don't believe it, another classic added => Centipede !
« Reply #63 on: March 27, 2007, 03:11:15 pm »
O yeah, and www.arcadeshop.com (where the above mentioned side-art was coming from) has plenty other nice Centipede parts as well.

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Re: I don't believe it, another classic added => Centipede !
« Reply #64 on: March 27, 2007, 03:17:45 pm »
Well, a working PCB would cost me almost $100,- incl. shipping.

I bought my Robotron PCB set for $200 from a total stranger: John Overchuk (www.barncade.com). Just posted in the google groiups - he mailed me that he has one working set for sale - money transferred - pcbs received - Robotron runs again :)  That's just the way it should be !!  Thanks again from this point John  :applaud:


Back to business.

Man, you are doing a great job here......keep going.


Money is here, all I need is your address. I searched the mails and posts but I couldn't find it :)


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Re: I don't believe it, another classic added => Centipede !
« Reply #65 on: March 28, 2007, 10:30:20 am »
I bought my Robotron PCB set for $200 from a total stranger: John Overchuk (www.barncade.com). Just posted in the google groiups - he mailed me that he has one working set for sale - money transferred - pcbs received - Robotron runs again :)  That's just the way it should be !!  Thanks again from this point John  :applaud:
[/quote] Well I think an original Centipede PCB deserves a fair chance on a repair. And I've used up pretty much of my budget by buying three very nice classic cabs in a very short time AND ordering all sorts of stuff for them. (That's why I was so glad with your offer for the buttons and cones for a very good price !)

But the main reason is that I think I have the capabilities to repair it and hope to succeed.

If playing the game is the only/main goal and/or you don't have the skill/tools to repair, then yes order PCB's and revive that cab !

Man, you are doing a great job here......keep going.
Thanks, I will. I just received the IC's from www.arcadechips.com !! Pretty fast and well packed in the "chip carriers". The chips are brand new as far as I can see.

I hope to do some work on the PCB this weekend.

Money is here, all I need is your address. I searched the mails and posts but I couldn't find it :)

PM sent :) !



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Re: I don't believe it, another classic added => Centipede !
« Reply #66 on: March 28, 2007, 10:54:10 am »
In my case, there was no PCB.  Have to hunt one down.  Have camera, pics to follow....
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Re: I don't believe it, another classic added => Centipede !
« Reply #67 on: March 28, 2007, 11:06:34 am »
Oh, I didn't want to say that you should stop trying to repair the PCB...of course NOT !!

If it isn't broken in four or more pieces there is a very good chance that it can be repaired (I once saw an Asteroids PCB where the tracks had already started to vanish.....don't know....some kind of acid or such stuff.


Please PM me with your address !!!  I've tested the switches with 3V and they both worked :)


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Re: I don't believe it, another classic added => Centipede !
« Reply #68 on: March 28, 2007, 04:08:46 pm »
Pictures ahoy....presuming Flickr is nicer to you than it is to me.  When I'm logged in, they show.  When I'm not, tosses an error about not being able to find my profile or my pictures...hoping it's just a database propogation thing though.

http://www.flickr.com/photos/7545690@N03/sets/72157600033257355/

Just in case I linked to it wrong somehow:

http://www.flickr.com/search/people/?q=Numbski&m=names
« Last Edit: March 28, 2007, 04:12:11 pm by Numbski »
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Re: I don't believe it, another classic added => Centipede !
« Reply #69 on: March 28, 2007, 06:31:09 pm »
Looks like the database replication caught up, and the links work now. :)

The ones of interest (or sadness, if you will):

Full right side shot:

http://www.flickr.com/photos/7545690@N03/437848162/in/set-72157600033257355/

Orange goo under the control panel:

http://www.flickr.com/photos/7545690@N03/437848154/in/set-72157600033257355/

and of course, slidehow! :)

http://www.flickr.com/photos/7545690@N03/sets/72157600033257355/show/
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Re: I don't believe it, another classic added => Centipede !
« Reply #70 on: March 29, 2007, 12:42:25 am »
Wow, my Centipede surely has been treated a LOT better than yours ! But you paid WAAAYYYY less than I did, but you're gonna need it for LOTS of things.....

F.i. that power supply is not going to do anything for a Centipede PCB. You will need all the "weird" voltages from a real Atari PSU....Maybe it would be cheaper to see if you can find one of those newer Centipede/Missile Command/Bowling game combo PCB's, but I guess these are quite rare.

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Re: I don't believe it, another classic added => Centipede !
« Reply #71 on: March 29, 2007, 04:45:05 pm »
I will be trying the repair on the PCB soon. Can anybody tell me if I can run the PCB on 5V (and maybe also 12V) only ? Just to check if things are running ?

My cab is temporarely stored in my shed so I would like to be able to do some testing outside of the cab...
Maybe Fredster knows this ?

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Re: I don't believe it, another classic added => Centipede !
« Reply #72 on: March 31, 2007, 04:50:08 pm »
Well I started my repair attempts today by replacing the 2114 that I suspected to be defective.

My method of replacing IC's:
1) re-tin all the pins of the IC on the solder side with new soldering tin. This will make it flow much better later.
2) cut off the pins of the old IC with a really tiny and sharp cutting pliers, as close as possible to the top of the pins.
3) remove the body of the IC when all pins are cut
4) position the PCB on it's side using something to let it lean on. Now hold the cut-off end of a pin  with small pliers and use the soldering iron on the other side. Now it's easy te remove the pin. Repeat on all pins of course..
5) Move the PCB back on it's components (solder side up). Remove all solder from the soldering holes using a tin-sucker and my regular soldering iron.
6) Clean the area and check for any "left-over" tin particles on the PCB.
7) Check all the leads going from the IC holes to the connected side with a DVM in diode test.
8) Insert a GOOD quality IC socket
9) Solder all the pins...duh.....ready !

I measured the pins again that showed different results between the two 2114's beforee and this time the values are exactly correct between the two ! So i have high hopes.....

The really sad thing is that my cab is deep down in my shed at this moment....so I can't test it yet AAARRGHHH !!! Could it run on just +5V and +12 V ?????? Just to test  ??

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Re: I don't believe it, another classic added => Centipede !
« Reply #73 on: March 31, 2007, 04:56:10 pm »
More pics......those damn sockets almost cost me more than the IC's !!!! Arcadechips.com should start selling these as well :D


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Re: I don't believe it, another classic added => Centipede !
« Reply #74 on: April 01, 2007, 06:04:56 pm »
Okay....took a few more pictures today.  Got the control panel off and started the process of stripping it down to bare metal.  I could use some help identifying holes. :)  I think the two "filled" holes to the left are the "cone" style buttons that I need to hunt down.  Anyone feel like helping me point out which holes need filled, and which ones need opened up?

Also, I guess I need some help in hunting down said cone buttons. :)

My plan right now is to fill in all unneeded holes with bondo, sand the whole thing super-smooth, prime, and a decent coat or two of black paint.  Done right, shouldn't be able to tell it was ever converted.

Here's a link to the pics from just today:

http://www.flickr.com/photos/numbski/archives/date-posted/2007/04/01/
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Re: I don't believe it, another classic added => Centipede !
« Reply #75 on: April 02, 2007, 11:26:46 am »
Okay....took a few more pictures today.  Got the control panel off and started the process of stripping it down to bare metal.  I could use some help identifying holes. :)  I think the two "filled" holes to the left are the "cone" style buttons that I need to hunt down.  Anyone feel like helping me point out which holes need filled, and which ones need opened up?
I think you already found the trackball and player 1 & 2 holes. Looks to me that the top hole (with the small cut-in) is the only real one.....there's plenty of pics in this thread for reference.....

Also, I guess I need some help in hunting down said cone buttons. :)
Luigi already offered them and either used or new pushbuttons in this very thread for very reasonable prices :D

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Re: I don't believe it, another classic added => Centipede !
« Reply #76 on: April 03, 2007, 01:49:04 pm »
Couple of silly questions then - since I never was much of a fan of Centipede (I think mostly because every trackball I came across sucked, and I always got my hands pinched on the side!)

1.  Are there supposed to be any carriage bolts or plexi?  It looks like maybe there are 4 visible that hold the trackball into place, but no plexi.

2.  Should I go with a leaf-switch button?  I'm almost tempted to go with a Sanwa pushbutton, both because of soft feel and more reliable.  Dunno there...

Those trackballs at groovygamegear.com don't look like they'll work here, so I guess it's a standard white trackball for me.   ::)
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Re: I don't believe it, another classic added => Centipede !
« Reply #77 on: April 03, 2007, 03:14:48 pm »
1.  Are there supposed to be any carriage bolts or plexi?  It looks like maybe there are 4 visible that hold the trackball into place, but no plexi.
ARRRGGH!!! Of course no plexi! THat's a modern-day thing, mostly started by operators adding it to control panels. NO PLEXI!

Quote
2.  Should I go with a leaf-switch button?  I'm almost tempted to go with a Sanwa pushbutton, both because of soft feel and more reliable.  Dunno there...
YEEEESSSSSSSS! Of course!!!

heheeheh  ;D
NO MORE!!

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Re: I don't believe it, another classic added => Centipede !
« Reply #78 on: April 03, 2007, 04:10:26 pm »
Sanwa on a real Centipede ?????  I consider that cursing :D

100% agreed with RayB.

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Re: I don't believe it, another classic added => Centipede !
« Reply #79 on: April 04, 2007, 09:03:05 am »
Dunno, up until I got this thing, I don't recall the last time I'd used a leaf-switch joystick or button.  Holy cow they feel mushy. :)

Anyhoo, so Luigi...buttons? :)
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Re: I don't believe it, another classic added => Centipede !
« Reply #80 on: April 09, 2007, 04:30:19 pm »
I replaced lots of chips today, regretfully without any result.

The only one's I didn't do yet are C8 and the main RAMs, but there are 8 and I only have 2, and they all measure the same values....piggy backing these RAMs didnt do anything at all.

I tried piggy backing C8, and there were already more details on the screen then without it, but the PCB is still not "running". Just a steady garbage screen with game characters....

I also replaced one of the startbuttons, just to take a look. Of course, the holes in the metal have been made larger to fit those ugly fake fruitmachine buttons, but the cones do cover the holes. However, they did a "proper" job and there's a small "key" on the side of the hole that shows when using the cones.
Should be OK when the CPO is replaced though this will cover it and it's so tiny, it won't be harmed.



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Re: I don't believe it, another classic added => Centipede !
« Reply #81 on: November 03, 2007, 11:08:11 am »
Wow , I really had to dig up this thread :)

Worked on the Centipede PCB today and I think I fixed it :)  :laugh: :laugh:

It was no RAM error.

Last week I checked the EPROMs at work, we have an EPROM programmer there. They all checked out just fine when compared to the "files I have floating around"....

I also checked out all the pins of all the EPROMs to the solder side, each and everyone beeped out just fine.

So today I decided to go to work like a pro should:

I got out my Oszifox (http://picotechitaly.8k.com/oszifox1/oszifox.html) and connected it to my laptop for easier reading.
I already had ordered a Centipede to Jamma adapter from Y-plus technologies http://www.arcademvs.com (who are GREAT, they deliver lightening fast and are CHEAP) just for the test work. Hooked it up to my Jamma cabinet and, there was the same static garbage screen like I had before.
I thought I smelled something and when checking all the parts for heat (fingers are a great instrument :) ) I discovered that Q2 and Q3 were really running hot. I then discovered through some more measuring that pin 5 and 6 were shorting on L2 (for those who want to know full details, let me know). I cut both pins, fired up the board, still garbage, but now it was actually responding (a bit) to the reset button. When pressed some garbage changed to other garbage, and back to the original garbage when released :D Since L2 is controlling the reset line of the CPU (6502) I took a gamble and shorted the +5V to pin 40 (the reset pin) of the CPU and YESSSSSS I had a play field. Even better, as long as I short the pin to +5V the game runs fine in attract mode !!!  :cheers: :cheers:

Set the dipswitches to Free Play, and yes I can start a game and fire....moving is a bit hard without trackball though :D

Sooooo, I went to my local electronics shop to get a new 74LS90 (=L2) but of course they didn't have it in stock  :banghead:
Ordered 2, pretty insanely expensive, over 2,- each for a simple 74LS.... but what the heck, I need it and I want it fixed.....

I guess I could simply hard-wire pin 40 to +5v but then there's no way to reset it anymore....

Anyway, I was very excited to see the game running in attract, really gives you a boost to know you found the problem and (most likely) fixed it.

I guess all the RAMs and CPU etc. have been replaced for nothing, but o well, another good lesson learned ! First measure ! :)

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Re: I don't believe it, another classic added => Centipede !
« Reply #82 on: November 03, 2007, 11:48:03 am »

I thought I smelled something and when checking all the parts for heat (fingers are a great instrument :) ) I discovered that Q2 and Q3 were really running hot. I then discovered through some more measuring that pin 5 and 6 were shorting on L2 (for those who want to know full details, let me know).

Of course you should post those details.

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Re: I don't believe it, another classic added => Centipede !
« Reply #83 on: November 03, 2007, 01:59:11 pm »
OK, sometimes I have the feeling my posts are too detailed and I'm boring people....

Here goes:

What you need to have for this are the schematics and a little understanding how these things work.
The schematics you can find at http://arcarc.xmission.com/

This one was of use the most for this situation:
http://arcarc.xmission.com/PDF_Arcade_Atari_Kee/Centipede/Centipede_DP-182-5th-01B.pdf


Since my PCB was completely frozen I had replaced a lot RAMs before and replaced the CPU. Also some more 74LS chips near the CPU.

On the KLOV forum, Mark Speath pointed me into the direction that this was probably NOT a RAM problem, since the game doesn't actually need any RAM to start-up. It makes sense, first thing a computer (which an arcade PCB is of course) when it starts up is read the very first adress for it's first CPU instruction. My PCB didn't seem to get that far...

Here's a pic how it looked when started up:


I could push the reset button, but it remained completely static, like it was frozen.

When you check the schematics, you can see that everything "starts" with the clock generator, using a 12 Mhz crystal and a transistor Q1. I checked those with the Oszifox and it was oscillating happily. The clock signal is routed to some counters/dividers. One branch of these make the H-sync and V-sync signals. Since I had a stable picture, I figured these were OK.

The other branch of course goes towards the CPU. I checked the clock signals with the Oszifox on the test-points and on the CPU pins and they seemed OK. I had also checked the ROM select signals (there are test-points for each one) and these were constantly high. This meant the CPU was not addressing the ROM.

So, I figured something was holding the CPU.  I also felt the overheating Q2 and Q3 so I measured the transistors and they seemed good. Then I measured (diode-check setting of DVM) across R7 and got a beep (=short). I re-measured it in Ohms setting: 0 Ohms. It should be 10k. I desoldered one leg of the resistor and it measured out fine, the short was somewhere else (usualy, the passive parts (like resistors, condensators etc. don't go bad, the active parts like diodes, transistors, IC's are most likely to go).
Checking the schematics I figured it could only be L2 since pins 6 and 7 are parallel to R7 and +5V.  I cut off pin 6 and 7. The short across R7 was gone. Checked between pin 5 (+5v input of L2) and pin 6 and there was the short !

I fired up the PCB again with the two pins cut off. Now I could see something happening when pressing the reset button. (The garbage changed when pressed, and changed back when released....)
L2 controls the reset signal going to the CPU.So I checked the reset pin on the CPU (pin 40). When this is low, the CPU is in reset, so it should measure +5V when running normally. I checked it and it was low. So the CPU was constantly in Reset.

Then I figured "what the heck" and shorted a +5v testpoint to pin 40. First I did it very briefly. But it was enough to get the complete playfield :) Then I shorted it longer and the attract ran....

Hello, everyone still awake ?  :P


P.S. Anyone needs a almost brand-new (two times used !!!!) Centipede to Jamma adapter ?
« Last Edit: November 03, 2007, 02:20:27 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #84 on: November 03, 2007, 03:22:50 pm »
Hello, everyone still awake ?  :P

Hell yeah, great post.   :cheers:

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Re: I don't believe it, another classic added => Centipede !
« Reply #85 on: November 03, 2007, 08:02:00 pm »
Whaahaha, Chad, tell me you followed every step while looking at the schematics :P

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Re: I don't believe it, another classic added => Centipede !
« Reply #86 on: November 04, 2007, 08:04:37 am »
Why is the centipede setting out in the mud?

In the pictures ?
« Last Edit: November 04, 2007, 08:06:52 am by BUCKETHEAD »

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Re: I don't believe it, another classic added => Centipede !
« Reply #87 on: November 04, 2007, 09:45:13 am »
Those were the pics that were sent to me by the seller. This one was really one of those "found in a barn" games :D

It looks amazing though !!!!
Was owned by a dentist who had it in his waiting room for a very long time  :laugh:

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Re: I don't believe it, another classic added => Centipede !
« Reply #88 on: November 04, 2007, 10:11:56 am »
Whaahaha, Chad, tell me you followed every step while looking at the schematics :P

Didn't go that far but I did read it 2-3 times to make sure I understood the logical process you used.  Good stuff.

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Re: I don't believe it, another classic added => Centipede !
« Reply #89 on: November 11, 2007, 06:23:00 am »
Went to pick up the 2 74LS90's I ordered yesterday and also got the matching socket.
Soldered it, put in the chip, power-up and YEAAEHHHH, it works :)

First (serious) PCB repair done  8)

Sure, I replaced a number of probably still good parts (some I can put back, the socketed chips I still have). But the bottom line is that it's working again, and it still cost me less than buying a working PCB. Far more important: the satisfying feeling of having it done myself AND having learned from it :)

Some pictures....(my "regular" camera was dead all of a sudden and is in repair now (warranty). So I took these shots with my old simple 2MPixel Fuji, and it shows.....ah well, I guess "you get the picture".....ahahahahahahaa (worst joke effort today)...

1st: No workbench, so this is my "professional" test set-up....my Mame/Jamma cab
2nd: The PCB with Jamma adapter (for sale, almost brand new !!!) ready for power up
« Last Edit: November 11, 2007, 06:36:20 am by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #90 on: November 11, 2007, 06:43:08 am »
Pic and vid....




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Re: I don't believe it, another classic added => Centipede !
« Reply #91 on: November 11, 2007, 03:00:38 pm »
Video:
[youtube]http://www.youtube.com/watch?v=SK0oP0oynDM[/youtube]

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Re: I don't believe it, another classic added => Centipede !
« Reply #92 on: November 12, 2007, 02:18:25 pm »
OK, the bug has bit me and I'd like to restore my Centipede asap.....

I'm looking for a new CPO and I have seen two on offer:
Arcadeshop:



applied:



Quarterarcade:


and this is how Quarterarcade shows it on e-bay:


Now compare this with my current CPO (this picture was taken by the seller in daylight):


and (this picture was taken by me, with flash):



Remember, my Centipede is Irish built and we all know there are color differences between US built and Irish built cabs. SW Cockpit is a very good example. (US is deeper blue, Irish lighter).

Now, from judging all the pics, I'd say the US repro's are a darker blue than the one on my cab. It seems the Irish blue is much "blue-er", harder color. However, since it matches so close to the bezel, I fear the color difference may be too much if I would order one of those repro's. Anyone has ordered any of these ? I seem to remember that there were two versions of the CPO (I don't mean the Willis) ?

Any help much appreciated !

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Re: I don't believe it, another classic added => Centipede !
« Reply #93 on: November 12, 2007, 02:33:00 pm »
Of course, I post this and the next minute I find this:

http://www.mamemarquees.com/centipede-upright-dark-blue-p-670.html

Dark and light blue..... I guess I will now have to go for an inkjet repro.....I somehow always prefer to have real silkscreen....Richie are you planning on doing Centipede CPO's ? I mean the light-blue one's ? :)

[Edit] Thinking this over, I have heard nothing but good stories about Mamemarquees so I guess I'll just try them this time :)
« Last Edit: November 13, 2007, 01:39:23 am by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #94 on: November 17, 2007, 11:27:40 pm »
man your a lucky guy hahaha where the heck do you find these machines in such great shape!!! im jealous

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Re: I don't believe it, another classic added => Centipede !
« Reply #95 on: November 18, 2007, 03:13:53 pm »
Neil you are totally right, I still can't believe my luck in finding all those beauties. The really eery thing is that I found them all within one year's time and all in this little tiny country I live in !

The problem with this is that I didn't have time to make a serious game room. In no time at all I was the owner of all those cabs, and they're all "parked" here and there.

There's some aspects in getting classic arcade machines here. First, they are definitely scarcer than in the US. But on the other side, conversions are very-very rare here. I think that is because most operators didn't actually own the cabs but other companies placed the machines at the operator's spots.

I don't remember lots of arcades here. Of course there were the usual "tourist" places where arcades were (and mostly are still today). But lots of machines spent their life in movie theaters, snack bars and camping grounds (the last were my first "arcades").

I got an e-mail from Scot and he confirmed that I should go with the light blue color. Order will go out soon. Then I have to dig up the cab from my shed and examine the trackball situation and the G07. I think instead of throwing in a TV with SCART-RGB, I will have a go at trying to fix the G07. Partly because it's lovely light grey CRT, partly because of it being such a mainstream monitor that should be easy and cheap to fix....

About collecting these things. I actually still have a couple of cabs on my radar, but the situation is unclear about them.....but there could be one or two additions within the next year....but first, I gotto get rid of all the stuff that is in my 3rd floor ("attic") and turn it into a game room....

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Re: I don't believe it, another classic added => Centipede !
« Reply #96 on: November 25, 2007, 05:20:59 am »
OK finaly found a little time to do something with the Centipede. First I had to bring the Puckman home. It was in temporary storage elsewhere and had to go.
I also wanted to start working on the Centipede so I wanted to move it into my home from my shed where it was in storage.

That meant that I had to move the cab that started it all INTO the shed: My Playscene Mame cab will have to wait some time until for further work....

Meant a lot of shoving around with the cabs, and at those moments you sometimes wonder why the hell you started this hobby ;)

Here' some pics:
1) Playscene ready to go to the shed. My wife protested because now she couldn't play her beloved Puzzle Bobble anymore. I concurred that she would love the Centipede as most women seem to :)
2) Picked up the Puckman and ready to be moved into the shed, but first I had to get the Centipede out...
3) Puckman meets Centipede...

« Last Edit: November 25, 2007, 06:18:25 am by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #97 on: November 25, 2007, 05:39:58 am »
1) And this poor thing is still patiently awaiting it's turn for restoration....
2) Well the Centipede hasn't suffered from the storage. I keep them well covered.
I really really love this style of cab, and the artwork is still brilliant IMHO
3) Let's try one of the new buttons I got from Luigi, Germany: Looks a lot better !


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Re: I don't believe it, another classic added => Centipede !
« Reply #98 on: November 25, 2007, 05:57:51 am »
Let' check the trackball:
1) Dirty but not too bad
2) Inside look

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Re: I don't believe it, another classic added => Centipede !
« Reply #99 on: November 25, 2007, 06:16:32 am »
1) Inside, dirty and some small rust spots. The rollers look like they have served their time :D
2) The ball. The dirt came off really well with my favorite cleaner Dasty, but of course it stays very yellow. Will be replaced with an Electric ICE
3) Yep those rollers are ready for replacement :P

The bearrings actualy roll still quite well. I guess I will clean and regrease them instead of new one's....
« Last Edit: November 25, 2007, 06:23:25 am by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #100 on: November 25, 2007, 08:16:26 am »
Some first cleaning:

I read up about cleaning bearings on this forum etc. and I think I might just as well order new one's if I need to order rollers anyway. The dollar-euro rate is still helping us European collectors :D

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Re: I don't believe it, another classic added => Centipede !
« Reply #101 on: November 25, 2007, 05:24:30 pm »
Funny... I just discovered another difference in the side art-work between US and Irish built: The Centipede's left (for the viewer right) "antenna" is going down and seems to stop too early on my cab, where on the US cabs it's going up and is longer.....


Anyway....

The G07 is still dead. I am going to try to repair it, even though there's some burn-in on the CRT.

There's something weird with the audio. When a game is started, I can hear the game sound for a VERY short time and then it dies-out.... could be the AR2 of course (not cap-kitted yet).

« Last Edit: November 26, 2007, 04:20:28 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #102 on: December 01, 2007, 06:42:25 pm »
Quick update:

-CPO is ordered from Mamemarquees.com
-AR2 capkitted and tested
-Power Brick rebuilt with Bob Roberts' kit. I still need a new F1 fuse holder, it was the first thing I checked when I got the cab, and the cap broke too pieces right away.....got it bridged now, but that's not how it's going to stay ! Not tested yet
-ordered trackball rollers and bearings, G07 capkit and Flyback, bolts and some other small stuf from Bob.
-gotta get me a LM324 and maybe some TDA2002 for the audio problem. Didn't have time for that this weekend.
-the cab is completely cleaned everywhere. It looks incredible and seems to beg me to get it fully running..........it's really frustrating to know that the game PCB runs and I can't play it yet  :cry: :cry:

No pictures, camera still in repair...

« Last Edit: December 01, 2007, 06:46:51 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #103 on: December 03, 2007, 03:08:08 pm »
Waaahhh, I just created some nice fireworks :D

Being the impatient guy that I am, I read-up on a lot of things about the G07. I read somewhere that a bad  C511 could cause the G07 to act as if it was  completely dead. So I replaced it with a cap that was about the right value (voltage was correct) and just powered it up.

There was some really nice fireworks going on in the lower part of the Flyback :) Instantly shut it off again of course.....at least I now know that the flyback's not ordered in vain :D

Well, that means waiting patiently for the Bob Roberts parts to arrive  :-\

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Re: I don't believe it, another classic added => Centipede !
« Reply #104 on: December 04, 2007, 11:41:35 am »
In the meantime (I really feel like I'm talking to myself on this thread  ::) ).....

I picked up a couple of LM324's and a socket. Replaced it as soon as I got home and ladies and gentleman:
We Have Sound ! :) !

So I can play blind now.....
Funny, it took quite a bit of work to get it where it was supposed to be at the seller's...... ah well, another hurdle successfully crossed :)

Isn't there be supposed to be some sounds when the game counts the left-over mushrooms after you loose a life ? Gotta run it in test-mode to check if all channels of the Pokey work....but that's a bit hard without picture....

If all goes well I will pick-up a nice RGB test monitor (Philips, one of those "Commodore 1084" models) tonight....


« Last Edit: December 04, 2007, 11:47:39 am by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #105 on: December 04, 2007, 11:44:44 am »
im reading
got COLOR codes from projects, post them here

add stuff to the uk wiki section

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Re: I don't believe it, another classic added => Centipede !
« Reply #106 on: December 05, 2007, 11:23:41 am »
Thanks Polaris :)

This Centipede is a tougher nut to crack than I'd thought.....eveytime I fix something, there's some other problem..... ::)
Picked up the Philips monitor yesterday, and it still has a great picture. Loosely hooked it up to the Centipede just now, works... :) [EDIT, well not completely yet, there' some weird thing with the colors, but I think I need to hook up the +12V and +5V lines, just like on the Galaxian TV-set).

So I tried to play my first game, but the trackball is only moving the archer up and right....oh well, no time to figure that one out tonight....must be the direction not working....

Bob just mailed me that he actualy cross-shipped the parts. GREAT ! And that on a first, international order  :cheers: :cheers:
« Last Edit: December 07, 2007, 06:36:44 am by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #107 on: December 08, 2007, 12:36:48 pm »
Another update....

Still have issues with the picture on the test monitor that I don't understand. I've hooked up both the +12v and +5v to the correct lines of the SCART, no improvement. This is WEIRD ! I'll try hook up the testmonitor to my Galaxian to verify it works OK.

However I could make out enough on the screen to see that I had yet another problem  :-\
The trackball was only moving the archer up and right. If I turned left or right, the archer went right. If I turned up or down, the archer moved up. Did some schematic  checking and got some help from the KLOV forum..... turns out there are 2 IC's that contain Schmitt-triggers on the PCB that process the signals that come from the optical boards. Since those were already replaced once on my PCB, they were on sockets. So I gave it a shot and switched them around. Now the archer was not moving at all.
This meant the problem had moved. One of those chips handles the direction signal (of both trackballs, for if it's in a cocktail) the other the clock signals. The clock signals make the archer move. The direction controls in which direction it moves.

In my original situation the direction chip was defective. When I switched them, the bad chip moved to the clock position, so now it didn't move at all. Probably, the direction now worked, but without clock signal there is no way of knowing it for sure.....

The IC's were 4584's (F10 and F11 on the PCB). Picked up 2 of them today. Replaced them and yes, it works perfectly :)  Another problem on the PCB solved. That makes 3 :D

I guess the PCB is 100% now :)

I got a mail from Scott from Mamemarquees that the CPO is on it's way over the Atlantic, so I figured I'd start preparation of the CP for it. Got out the heat-gun to remove the original CPO. Even though it was damaged and worn, I still don't like to remove the original stuff...but gotta do what I gotta do :)

CPO is bare now. Need to sand it for the rusty area around the trackball. I think I will paint this one myself for cost reasons AND because the CPO is fully covering the CP. There are no visible CP parts, so the look of the paint is not terribly important. It's just for protecting it from rust.



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Re: I don't believe it, another classic added => Centipede !
« Reply #108 on: December 08, 2007, 09:07:31 pm »
Another update....

Still have issues with the picture on the test monitor that I don't understand. I've hooked up both the +12v and +5v to the correct lines of the SCART, no improvement. This is WEIRD ! I'll try hook up the testmonitor to my Galaxian to verify it works OK.

However I could make out enough on the screen to see that I had yet another problem  :-\
The trackball was only moving the archer up and right. If I turned left or right, the archer went right. If I turned up or down, the archer moved up. Did some schematic  checking and got some help from the KLOV forum..... turns out there are 2 IC's that contain Schmitt-triggers on the PCB that process the signals that come from the optical boards. Since those were already replaced once on my PCB, they were on sockets. So I gave it a shot and switched them around. Now the archer was not moving at all.
This meant the problem had moved. One of those chips handles the direction signal (of both trackballs, for if it's in a cocktail) the other the clock signals. The clock signals make the archer move. The direction controls in which direction it moves.

In my original situation the direction chip was defective. When I switched them, the bad chip moved to the clock position, so now it didn't move at all. Probably, the direction now worked, but without clock signal there is no way of knowing it for sure.....

The IC's were 4584's (F10 and F11 on the PCB). Picked up 2 of them today. Replaced them and yes, it works perfectly :)  Another problem on the PCB solved. That makes 3 :D

I guess the PCB is 100% now :)

I got a mail from Scott from Mamemarquees that the CPO is on it's way over the Atlantic, so I figured I'd start preparation of the CP for it. Got out the heat-gun to remove the original CPO. Even though it was damaged and worn, I still don't like to remove the original stuff...but gotta do what I gotta do :)

CPO is bare now. Need to sand it for the rusty area around the trackball. I think I will paint this one myself for cost reasons AND because the CPO is fully covering the CP. There are no visible CP parts, so the look of the paint is not terribly important. It's just for protecting it from rust.

I'm reading too...  this info is especially important if I am going to pick up that Millipede.   ;D
My projects...

Finished:  Stargate (only 'cause I got it that way)
In progress:  Tron, 48-in-1 for School Auction, DKJr (currently a 60-in-1), Millipede, MAME System

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Re: I don't believe it, another classic added => Centipede !
« Reply #109 on: December 09, 2007, 05:41:38 am »
Wow, fixing these things is like a big electrical jigsaw puzzle. I guess that's half the fun huh? Having that collection of yours complete and working will be seriously cool 8)
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Re: I don't believe it, another classic added => Centipede !
« Reply #110 on: December 09, 2007, 05:02:15 pm »
Indeed, I'm still very satisfied after fixing each problem. To be honest, I'm a little proud even :D
I knew doing MTS electronics would come in handy at one point or the other  :laugh:

I am SO close to getting the Centipede running....(I hope).

Turned out Bob Roberts's package was delivered at my neighbors yesterday as we weren't home. Neighbor brought it a couple of hours ago as we were out almost all day... Receiving a package like that is still exciting :)

Nothing to pay to the postman (I mean no import duties and nasty stuff ;) ), well done Bob, and what a quick delivery (shipped 12/4, arrived 12/8 !)

I instantly rebuilt the trackball, wow what a difference !!! Bob's rollers are stainless steel, where the originals seem to be your average regular steel stuff....I think Bob's will last VERY long....

After that I started cap-kitting the G07. I had already removed the flyback so I could start working right away......going back to work now.....

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Re: I don't believe it, another classic added => Centipede !
« Reply #111 on: December 09, 2007, 05:37:06 pm »
BTW, I just discovered why my test-monitor (the Philips) wouldn't work.....I freaking connected the wires to the wrong pins !!!!  :banghead: :banghead:

I assumed by looking at the wire colors which was R-G-B, turns out I assumed wrong. I didn't correct it yet, but I just discovered this while looking at the schematics of the Centipede  :banghead: :banghead: :banghead: :banghead:

Ah well, another lesson learned....gotta stop working on the G07 now, it's bed time here.....damn wish I didn't have to work tomorrow :P

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Re: I don't believe it, another classic added => Centipede !
« Reply #112 on: December 10, 2007, 04:37:13 am »
OK, some pics as I have some (extremely rare) spare time at work :)

1) This was what I found when I removed the marquee the first time. There' some plastic cover over the tube (at least, it's supposed to be) probably to dim the light. Not a bad idea, I still think my Galaxian marquee is too light when I play it....however this one does it's job a little too well, the marquee is too dim for my taste ......anyway it's not listed on Atari's parts list. Maybe an Irish-built thing, or a later mod ?

2) tube holders......needs to be replaced I guess....


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Re: I don't believe it, another classic added => Centipede !
« Reply #113 on: December 10, 2007, 04:39:19 am »
1) Warning: Extreme nudity in this picture !

2) The G07 frame and CRT

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Re: I don't believe it, another classic added => Centipede !
« Reply #114 on: December 10, 2007, 04:41:23 am »
1) CRT front, some burn in of course, but not too bad

2) close-up

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Re: I don't believe it, another classic added => Centipede !
« Reply #115 on: December 10, 2007, 04:42:45 am »
1) A last look at the original CPO....

2) It's the details...

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Re: I don't believe it, another classic added => Centipede !
« Reply #116 on: December 10, 2007, 04:46:06 am »
1).....AND the impossible-to-miss things that matter :)

2) OK, let' put some heat to it

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Re: I don't believe it, another classic added => Centipede !
« Reply #117 on: December 10, 2007, 04:48:04 am »
1) More nudity.... :D

2) Old versus new trackball rollers......

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Re: I don't believe it, another classic added => Centipede !
« Reply #118 on: December 10, 2007, 04:50:25 am »
1) New bearings installed

2) .....and finaly a use for that red-translucent ball that I intended for my MAME cab.....
It runs as smooth as baby's skin :D

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Re: I don't believe it, another classic added => Centipede !
« Reply #119 on: December 10, 2007, 06:27:10 pm »
OK,worked more on the G07, replaced the flyback, tested, nothing.....this is  one ---smurfette--- of a monitor to repair....(see the thread under "monitors".

So, I needed some succes..... I rewired the cable from the monitor connector going to the SCART, this time with the RIGHT connections (DUH !!) and, yes we have a wonderful clean, bright colored picture on the little Philips monitor :)  I put it (loosely) in the place where the G07 belongs...resting on the wooden frame really.

So I HAD to hook up the trackball and the button....put back the CP and...........holy crap.....for the first time in my life played Centipede the way it was meant to be !!!!!!!!  :cheers: :cheers:

The PCB is running 100%.......now that (&^%#(*$^& G07 needs to get fixed.......I have to admit that I am already tending to getting a used TV-set.......but I gotta leave it a bit for now....will have new courage tomorrow (I hope) ...

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Re: I don't believe it, another classic added => Centipede !
« Reply #120 on: December 10, 2007, 06:38:03 pm »
Cool. You know that is bad to be able to play the game. Now you wont have time to fix the  machine anymore :)

Amazing how those rollers wear out.

BTW Why is this in Arcade Miscellaneous? I thought it would be in the Project Announcements. I wanted to check the thread and couldn't find it back anymore  :o
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Re: I don't believe it, another classic added => Centipede !
« Reply #121 on: December 10, 2007, 06:59:42 pm »
Uhmmm.....well it's a really old thread, from before I actually got the cab. It wasn't a project still then :P


What you say is only partly true. I can't let that little monitor stand around like this, or it will end up smashing on the floor :) But it did cross my mind that I should fix the coindoor first, before getting it playable.

The thing is, I'm getting some people over for X-mas and I want both my Galaxian and Centipede to be playable :)

Playing Centipede with a trackball feels GREAT !!! This was what totally turned me down on the Atari 2600 version, the louze (progressive !) joystick control.....I do think I had better scores then though, at least the games lasted a lot longer :D


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Re: I don't believe it, another classic added => Centipede !
« Reply #122 on: December 11, 2007, 03:56:06 pm »
CPO is in !

First sight is it's looking great.....but it's dark now here so I can't check with natural light. ......

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Re: I don't believe it, another classic added => Centipede !
« Reply #123 on: December 15, 2007, 11:41:22 am »
OK, I got my camera back (well, long story, it's actually a brand new one, same model....
So it was time to test it when I got home and what better way to do it than taking some shots of the CPO.

I ordered this from Mamemarquees.com. I chose for them mainly because I have the Irish built Centipede which has the lighter (brighter ?) blue. All other Centipede CPO repro's I've seen are the dark American style.
So thank you Scott for being able to get the right color !!

Talking about color, let's show the pics:

(All pics at once here and you can download the FULL size pictures if you want here: http://gallery.mac.com/andre.huijts#100081)

First look: Nice deep blue, good colors, great detail. Looks great !


OK, let's compare a bit with the original CPO:


and another:


That blue is spot on !! The structure of the new repro is somewhat finer, but the total effect is not hurt by that. Feels really nice.



Very, very nice ! The green and yellow are a very nice match too !!!  :applaud: :applaud:
Remember that the original is 27 years old so it has suffered a bit from hands, light etc. I think those colors are a perfect match !!

So it is 100% perferct ? Regretfully, not 100%...:

There's some color differences in the "rainbow part". However, that's not too noticable. The part that is white on the original and striped on the repro....I think that my original has faded there. There are some of those stripes visible on the other side with the same graphics (in mirror, not on the pic). But that's all not too important. The most noticible is the color differences with the slashed stripes on the right. That's a rather noticable difference...and also the spacing between the lines is different and that's strange, as everything else seems perfect sized.

Same color is also used in the middle part of the CPO:


And now for an interesting one:

Look at the line around the red area.....blue on the repro, pink on the original. This may be one of those US/Irish color differences. You see this on the Marquee as well. The US has dark blue (purple ?) parts f.i. where the Atari logo is, on my marquee it's pink there. Not a real problem, I actualy think the blue looks better :D

Now I guess Scott printed this from the files from that other company that stopped the repro production (I acually don't remember the name !). So I guess these things are in that file.

Overall, the CPO looks fine, and I'll use it on my cab, no-one else will notice this  (it's nothing like the Galaxian misprint I had before (for the record, that one was NOT from mamemarquees.com !!!))

Maybe Scott can touch up the file for any next customers, but then again, I guess he'll sell the American/dark blue version a lot more. Anyway Scott, if you read this, I can send you the scrap pieces I still have if you'd like so you can compare.

I'm really pleased with the overall quality and colors of the CPO. I was a bit afraid about the blue color, but it's top-notch !

The only thing that worries me is that I will have to make the holes myself. Especialy the trackball hole maybe tricky. The Galaxian CPO I got from ThisOldGame.com had the holes right in there....but I guess it's a lot more work if you don't run a series of CPO's for a certain game.

Anyone has any tips on safely making the holes ?

[Edit] It suddenly dawned upon me that I could cut out the trackball hole after the CPO is installed on the CP.....duh. However, this won't be true for the start buttons, as the holes in the metal were made bigger because of the funky fruit-machine buttons that some dork fitted on there.... but that won't be too much  of a problem.

AND I should be ashamed of myself that I did not first look for this: http://wiki.arcadecontrols.com/wiki/Applying_CPOs
« Last Edit: December 15, 2007, 02:07:10 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #124 on: December 15, 2007, 10:46:10 pm »
 :cheers: very nice...

can not wait to see it on the panel  :applaud:

 ;)

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Re: I don't believe it, another classic added => Centipede !
« Reply #125 on: December 17, 2007, 11:30:47 am »
:cheers: very nice...

can not wait to see it on the panel  :applaud:

 ;)
Me too :)

I started sanding the CP, not as easy as it seemed !!! There were remainders of the glue on it that didn't help......I tried using the heat-gun and scraping it off......then sand again....this is going to take some time.





I think there was someone who actualy burnt off the CPO with some liquid ? I wonder if that got rid of all the goo....
« Last Edit: December 17, 2007, 11:47:41 am by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #126 on: December 17, 2007, 05:47:21 pm »
This took a whole lot of sanding.....and I'm not nearly finished..... ::)


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Re: I don't believe it, another classic added => Centipede !
« Reply #127 on: December 18, 2007, 03:39:14 pm »
Replaced the LED's in the vulcano/cone buttons today. Both LED's were not very bright (anymore ?) and one was even weaker than the other (one als had a white color (not the light, but the LED itself) as you can see on the pics....

The old situation..


Other side...


Your last hour has come LED !!! CAREFULLY twisting and turning and pulling until it breaks loose....


This is the result......mmmmm maybe turned a bit too much, but this way the leads didn't break off right under the LED housing.... :D


Pre-tin the leads of the new LED and the metal strips on the switch...


Put the LED in, AND put the lens in !!! This way you can position the LED so that the switch can still be operated....


Solder the RIGHT lead first so the LED is fixed. Then REMOVE the lens and solder the left lead because else you might melt the lens leg !

Clip of the extra length on the LED legs.

The result:



And a little video. That sound you hear is my lens trying to focus in the dark.....nothing else :)
[youtube]http://www.youtube.com/watch?v=uPihMHw826g[/youtube]
« Last Edit: December 18, 2007, 04:01:18 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #128 on: December 18, 2007, 06:35:37 pm »
Just testing something...sorry....




« Last Edit: December 18, 2007, 06:43:35 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #129 on: December 19, 2007, 06:23:28 am »
WOW...they are shining bright now....congratulations :)



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Re: I don't believe it, another classic added => Centipede !
« Reply #130 on: December 19, 2007, 06:34:44 am »
Thanks Luigi, and thank _you_ for providing those excellent switches and cones  :cheers: :cheers:

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Re: I don't believe it, another classic added => Centipede !
« Reply #131 on: December 19, 2007, 06:10:38 pm »
I've already got a really nice poster for my SW cockpit, but I'd SURE like to have this next to my Centipede !!!!!!!!



Did I mention this sold for 350 bucks on e-bay ?
« Last Edit: December 19, 2007, 07:06:17 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #132 on: December 20, 2007, 05:00:14 am »
$350!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!   :dizzy: :dizzy: :dizzy:
My projects...

Finished:  Stargate (only 'cause I got it that way)
In progress:  Tron, 48-in-1 for School Auction, DKJr (currently a 60-in-1), Millipede, MAME System

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Re: I don't believe it, another classic added => Centipede !
« Reply #133 on: December 20, 2007, 07:14:53 am »
Yep and the same seller sold a really rare Major Havoc poster (only 7 made) for  $800 :)

Read all about it here:
http://forums.webmagic.com/ubbthreads/showflat.php?Cat=0&Number=605264&page=0&fpart=1&vc=1


BTW, I just decided to give up on that  :angry: :angry: :angry: :angry: :angry: GO7.
I just don't have the patience and time for it anymore. Bit of waste of getting the cap-kit and flyback.....but  so be it. If I'm in a good mood I MAY spare it to have a look at it later, but now I want this cab to WORK.

So I'm again looking for a nice used 51cm TV with SCART...... :)

Next weekend will be getting the CP ready, installing the TV and have a working game !
« Last Edit: December 20, 2007, 07:59:57 am by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #134 on: December 20, 2007, 05:38:51 pm »
Wire brush in drill works well to get rid of that glue residue....




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Re: I don't believe it, another classic added => Centipede !
« Reply #135 on: December 23, 2007, 04:46:13 am »
Mmmmm.....the wire brush worked really well but........

I went to my optician yesterday for my regular eye/lens check. I wear soft (monthly) contact lenses. So when he was checking my eyes, he asked if had travelled by train a lot lately.....
I almost never travel by public transport (company car eh) so I said no and asked why he asked me. He told me there were metal particles in my lenses !!!!!!  :o :o :o

I am always very careful with working, power tools, safety etc. but I didn't think the wire brush was much of a risk for the eyes.....so another lesson learned: WEAR PROTECTIVE GLASSES WHEN DOING THIS KIND OF WORK. I felt SO stupid ! Luckely my contacts saved me this time......................

About the cab: Picked up a used Daewoo 51 cm TV two days ago. I made pictures but my card got screwed up in some weird way, so not pictures  :banghead:
Anyway, I mounted the CRT in the G07 frame, a perfect fit. The CRT is (as expected) a little darker than the G07. But there's no screen burn, and the picture was very nice when I tried it with a DVD player.
The PCB was a little larger than the G07's but I could fix it in a good way.

The TV survived the conversion. So I got a SCART cable, cut of one connector and soldered all the connections, colors, ground. The sync, +5V and +12V I soldered temporarily to the PCB (will move them to the connectors a bit later).
So, expecting to finaly be able to play the game in full-size, I turned everything on and.......one black screen. I could see a little bit reddish raster, but nothing else.....!?!?!

So I took my test monitor (14" Philips CM8524, I incidently picked up another for 10,- that night as well, will be an excellent monitor for my Pleiads cocktail :) and almost as cheap as a cap-kit :) ) and hooked it up: Perfect Picture !!!!

So I double checked the +12V and +5V lines: OK. The picture was perfect on the Philips so colors, sync and ground are correct as well. I tried selecting sources on the TV (which should NOT be neccesary)....didn't help....

Then I got my DVD player again (which puts out it's signal in RGB) and it works great on the Daewoo !!!
This is VERY VERY VERY weird !!!

The only thing different I can still think of are the RGB levels. These are at about 4V from the PCB and SCART expects 1V. That didn't matter much for the TV I used in my Galaxian, or the Philips test monitor, but maybe the Daewoo has some "overload protection" ?

So I will add some resistors today and report back......please let it work  :-\ :-\

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Re: I don't believe it, another classic added => Centipede !
« Reply #136 on: December 23, 2007, 05:42:11 am »
Just found the TV schematics. Turns out the Daewoo is a Hitachi CP375........and it's built in France :D
Anyway, the RGB inputs are protected with Zener diodes, UZ-5.1BM. AFAIK a zener clamps a (input) voltage to a certain level......I don't remember seeing Zener diodes on the RGB input side of the SCART on the Philips. So this could be the problem.....

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Re: I don't believe it, another classic added => Centipede !
« Reply #137 on: December 23, 2007, 02:19:27 pm »
Mmmmm.....the wire brush worked really well but........

I went to my optician yesterday for my regular eye/lens check. I wear soft (monthly) contact lenses. So when he was checking my eyes, he asked if had travelled by train a lot lately.....
I almost never travel by public transport (company car eh) so I said no and asked why he asked me. He told me there were metal particles in my lenses !!!!!!  :o :o :o

I am always very careful with working, power tools, safety etc. but I didn't think the wire brush was much of a risk for the eyes.....so another lesson learned: WEAR PROTECTIVE GLASSES WHEN DOING THIS KIND OF WORK. I felt SO stupid ! Luckely my contacts saved me this time......................

Yeah!  I used a wire brush with my Dremel and felt something hit my cheek.  thought nothing of it until a couple of hours later, my wife asked me what was sticking out of my face!!  It was a 1/2" (just over a 1 cm) piece of wire from the brush!   :o
« Last Edit: December 23, 2007, 03:26:06 pm by shilmover »
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In progress:  Tron, 48-in-1 for School Auction, DKJr (currently a 60-in-1), Millipede, MAME System

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Re: I don't believe it, another classic added => Centipede !
« Reply #138 on: December 24, 2007, 09:52:06 am »
Wow, glad that thing didn't end up in your eye !

Back to the Daewoo. This is one big annoying mystery !!!

I've tried the resistors, 75 Ohms in serie with the RGB lines. Still black screen.

So, I figures, let me try that Daewoo on the Galaxian cab: PEFFECT PICTURE !!!!!  :dizzy: :dizzy: :dizzy:

I'm going nuts. I can't explain this. Unless the Centipede has very much higher output levels on the video....

So.......gonna try the Philips that I installed in my Galaxian on my Centipede now. If it works, that means it will be swapping time !



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Re: I don't believe it, another classic added => Centipede !
« Reply #139 on: December 24, 2007, 10:26:49 am »
Ok, Philips works GREAT on Centipede........



 :dizzy: :dizzy: :dizzy: :dizzy: :dizzy: :dizzy: :dizzy: :dizzy: :dizzy: :dizzy: :dizzy: :dizzy: :dizzy:


Not going to loose any more time: Centipede is getting the Philips, Galaxian the Daewoo.....everyone happy :D

This means swapping the frames but that's less time than more puzzling.....


« Last Edit: December 24, 2007, 10:32:03 am by Level42 »

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Re: I don't believe it, another classic added => Centipede !
« Reply #140 on: December 24, 2007, 02:37:24 pm »
Of course.....the swapping was not straightforward.....

I first removed both CRT's and PCB's from their frames. Moved the CRT and PCB of the Daewoo to the Galaxian frame....tried fixing the CRT.......no go. The CRT (or rather a metal band around it) makes that the hole is too small for the CRT to fit.........so got out the saw and enlarged the hole. Took me two tries to get a perfect fit.



The PCB fitted easily. This time I used PCB feet to mount the PCB since it's much smaller than that of the Philips. I think the Daewoo is more modern than the Philips....

So next up was the Philips to be mounted in the G07 frame. The CRT was an easy enough fit. But that PCB is HUGE compared to the G07 ! And of course the frame is mounted on it's side in the cab, and it's slanted......I measured.....that won't fit if I mount it on the original spot for the PCB  :angry: :


OK, so if I move the PCB to the side that will be on the lower part of the cab....maybe that'll work....:


Yes, that'll be OK, only have to remove some exces plastic from the original TV underside....:


There was one wire too short for mounting the PCB this way. It's the wire to the degaussing coil....well I'll extend that later...
I want some results ! :D:

O yes, what a lovely sight ! V I C T O R Y ! ! !   :laugh: :laugh: :applaud: :applaud:





Well, of course I was allowed one whole game and then........:


Still gotta fix up the SCART cable etc. in a neat way....but at least it WORKS :) :) :)






« Last Edit: December 24, 2007, 02:45:49 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!!
« Reply #141 on: December 24, 2007, 03:05:39 pm »
Love the kitchen arcade.  (is it in the kitchen or is that a bar area?)
Good idea switching the two monitors...you'd likely still be trying to figure out why it wasn't working.

How do you plan on making the player start button holes smaller again to fit the atari cone buttons?

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #142 on: December 24, 2007, 03:55:37 pm »
It is the kitchen......serving as my workplace since I got the Galaxian :) I don't have a good workplace yet....no garage, no basement....My wife loves it.............(not :))

Yeah, you gotta be practical in such situations.....although it still annoys me.....

O well....problem solved :)

About the holes: I actually can mount the buttons in these holes. Would have to center them properly. They do hold there. I'm just not sure what will happen if I will mount the CPO and make a hole with the proper size. I fear that after some time, the CPO might tear because of it... I can't weld so putting some new metal in is probably not the thing for me. I'm thinking of some kind of epoxy stuff to fill the holes, and then be able to sand the panel etc.

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #143 on: December 27, 2007, 12:51:57 pm »
Sure. Getting near restoring my Centipede, and a full working one pops up here in The Netherlands:

http://verzamelen.marktplaats.nl/automaten-overige/129616155-atari-centipede-arcade-kast.html

 :-\


naaaaaahhhh, at least I'll have the satisfaction of restoring it myself :)
« Last Edit: December 27, 2007, 12:59:10 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #144 on: December 29, 2007, 04:17:30 pm »
In the mean time.....








Doesn't look like it, but I've also been working hard on the CP. All paint and rust has been removed. Now still need to sand it and paint it.......
« Last Edit: December 29, 2007, 04:20:52 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #145 on: December 29, 2007, 04:33:04 pm »
Some video may give a better impression than the pics....

[youtube]http://www.youtube.com/watch?v=JlfezwBHn7U[/youtube]


[youtube]http://www.youtube.com/watch?v=b-aoaatzdXk[/youtube]
« Last Edit: December 29, 2007, 04:44:43 pm by Level42 »

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Progress is slow.....X-mas holiday was over last thursday....

About the Daewoo TV: Don't ask me why or how, after the first time I connected it to the Galaxian (and it worked at that moment) it went back to the same behaviour as when it was connected to the Centipede: steady black screen !

I downloaded the Service Manual and found this:


Sooooooo, since I'm puttin in 5 Volts on Pin 16 on the SCART, I bet the switching input selects OSD mode (>4V). This explains the all black screen, it was in OSD mode, but there was no OSD data to be displayed produced by the TV........
So, I need to put in something between 0.9 and 3 Volt !!! This was no problem with the older Philips, but it is on this one. And I have to admit that those values are the correct one's according to the SCART definition, so it's my own fault :D

Anyway, I soldered a 150 Ohms resistor in series with the +5V to lower it a bit, and it did the trick :D
Glad that I got that working !

However, there seem to be some sync problems with the Galaxian. I never noticed this when the Philips was in the Galaxian....there's a bit of jumping of lines on the right side....
Now, I would try to adjust some settings, but this Daewoo needs a special Service Remote to get into the set-up screens :( !  Sigh......OK, SCART is great but it's not without problems to get a perfect picture (I'm a perfectionist on this...) Saw a Service Remote for $7,95 somewhere so I guess I'll order it...

Went to Suzo last friday to get some parts. The main thing (black T-molding) they didn't have on stock. This comes from Suzo UK. They sell it only a couple of times per year here.....

The good news about Suzo is that I can buy anything from the Happ catalog now as well. And of course there's some overhead for transport, but they have 2-weekly regular shipments, so f.i. for getting a monitor this is a great option. Price should be about the same in Euro's as it's listed in Dollars (but that's without VAT :(

Anyway, did get some of those less glamorous parts, but still important:

The Terry clips were rusted away....amazing how some parts never change :D


Some things do change however....(I didn't trust the contacts of the TL holders much, might have been rusted as well...)
Original:

New:


And the total, ready for another 30 years :D:

« Last Edit: January 06, 2008, 05:46:57 pm by Level42 »

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Finally opened the little coin door on the bottom of my cab. It's strange, other Irish cab's I've seen don't seem to have this ...

Anyway the lock was a little harder than usual to force mainly because of it's position I guess.
That big white scratch is entirely my stupidness, but it's going to have to be repainted anyway. The door is _really_ thick.



As I expected (I could hear it working when creditting the game) the coincounter is mounted here. This is all a bit strange, normaly it would be at the big coindoor. In this case, it's a great thing, because there is no coincounter "holder" on my "new" coindoor....and it is welded on the old one....



Here you can see where the coins are received. Not a metal or plastic box but a bag ! :D




Inside of the "old" door. Nothing really special. I mounted the Guilder coin selector, because these were removed before. On the lower right you can see the empty holder for the counter. This is missing on the "new" door....


The doors compared...with flash:


and without (shows the dents a lot better):


I still got the sticker sheet that came with the manual. Should I put the one with the Atari logo on or not  ? (Hides some of the scratches....)


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Man....gotta clean up this wiring mess :D (Works, but can't leave it like that of course....)



Painting. It's a slow process. This is the CP after it's second layer of primer.



Do I need to sand it now ? It feels very smooth. Or can I start the first layer of black ?

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #149 on: February 07, 2008, 11:08:57 am »
Well....I finaly took the plunge....I finished the CP with 3 layers of black, and I still wasn't happy with the look of it, but as long as it protects the metal it's fine.

This CPO application was a lot harder than that of the Galaxian. Not only does this one cover the entire CP (with lots of corners), also the CPO doesn't have pre-made holes for the controls.

I was wondering if I should cut the holes first or the other way around. The first option I quickly forgot about, thinking it would be impossible to do 100% right.

But the other way around isn't much easier. I punched holes at the spot where the cross-hairs for the controls were, for reference. And then I just went ahead. At one point, the panel slipped out of my hand, and it kinda wrinkled the CPO to the right of the trackball spot....I'll have to live with that.

I also discovered that there are some small bubbles here and there.....even though I was so careful about that.

All in all, is sure beats how it looked before the renovation...

I decided to get the new V2.0 ICE trackball and pushbutton from GGG because I don't like the look of the orange (when not lit) trackball mostly. The new polished look of the ICE-ball is just what triggered me to decide for it.





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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!!
« Reply #150 on: February 07, 2008, 11:17:14 am »
Looking good.

I still find the fire button placement on Centipedes odd.  Looks like it should go in the center of the "starburst" graphic, not above it...I guess it was placed higher for ergonomics maybe?

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #151 on: February 07, 2008, 11:24:07 am »
Yes. It's weird how I never noticed that myself until I read someone mention that. I'm _very_ sure that the button was originally meant to be in the starburst.

Actually, when playing, I find that I would have liked the trackball to be at the same height as the button. There's too little room below the trackball for my big hands to rest ....

Maybe test-reports then indicated this as well, but I guess there wasn't much room to move the trackball up....

About the CPO: It's a shame that just that one color (of the big starburst in the center) is so light. It really "hides" that startbust from sight.

I've just mailed the rest pieces of my original CPO to Mamemarquees, so I hope the design will be corrected....
« Last Edit: February 07, 2008, 11:26:53 am by Level42 »

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #152 on: February 07, 2008, 02:31:19 pm »
Level42 why is it that you keep getting all these sweet projects?
Back in MY day we lived on the moon and we had to build a rocket ship from scratch to get to the Earth before we suffocated.

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #153 on: February 07, 2008, 02:45:07 pm »
I honestly don't know Sithmaster. Could it be I'm lucky in arcade games because I'm unlucky in love and money ;)  :laugh2: :laugh2:

Could also be because I'm 1 of the.....5 or 6 active collectors here ?

I just don't know........maybe it's the Force :D

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #154 on: February 07, 2008, 02:47:33 pm »

I think it's because the guy who works the hardest finds the most games.  That's all there is to it.

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #155 on: February 07, 2008, 02:54:39 pm »
Haha, thanks Chad, that's a very nice compliment. Actually I don't work that hard on them. Projects take lots of time because, well I do have a regular 5 day a week job wit lots of travelling, family life, my marching band (hah ! http://web.mac.com/andre.huijts/Muziekvereniging_Harmonie_Slikkerveer/Drumband.html, see if you can spot me :D)) and going out and have fun with friends :D
I did quit being the treasurer of that marching band by the way, and it feels I have LOADS of free time now :D

Anyway, I work on them whenever I feel like. There's no rush. These things are 25 years or older so restoring them in a hurry doesn't make sense to me, and it stays a lot of fun this way. I'm trying to compromise as little as possible and that also takes time. I do learn about the process however. F.i. I've been spray painting the CP now, but I still have to do the other metal parts (marquee brackets, lower coin door and main coin door mounting ring). Would have been a lot more clever to do every step with all those parts at once.....
« Last Edit: February 07, 2008, 02:59:48 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #156 on: February 07, 2008, 03:20:43 pm »

I think it's because the guy who works the hardest finds the most games.  That's all there is to it.

For some reason i dont think im going to find a centipede or a sw vector anywhere near me. 

Back in MY day we lived on the moon and we had to build a rocket ship from scratch to get to the Earth before we suffocated.

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #157 on: February 07, 2008, 03:22:22 pm »
For some reason i dont think im going to find a centipede or a sw vector anywhere near me. 

Don't you live in New Jersey?

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #158 on: February 07, 2008, 03:30:33 pm »
Well, a Centipede shouldn't be that hard to find. The SW would be a bit harder.

I was just amazingly lucky to find those cabs here on our version of Craig's list.

The SW was a truly amazing story.

I had been reading about the SW game and since I'm very interested in the vector games I just did a text search on SW, thinking to only find the usual 2600 carts etc. To my surprise, I noticed that there was a SW cockpit for sale. The thing was that it was listed in the pinball section and there was NO picture. I think adding a picture is about the smartest thing to do when you want to try to sell something on these boards, so it wasn't very clever of the seller to not do it.

I mailed the guy and then heard nothing for weeks. The advert was old and got deleted and I feared I was too late. Then all of a sudden I got a reply.....it took several months and some mails to finally actually buy the machine.

Finding that one was like winning the lottery to me. :D


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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #159 on: February 07, 2008, 04:09:38 pm »
For some reason i dont think im going to find a centipede or a sw vector anywhere near me. 

Don't you live in New Jersey?

...Yes.
Back in MY day we lived on the moon and we had to build a rocket ship from scratch to get to the Earth before we suffocated.

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #160 on: February 07, 2008, 04:14:23 pm »

NJ is the deepest and easiest source for games in the northeast, maybe on the whole east coast.

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #161 on: February 07, 2008, 04:18:35 pm »

NJ is the deepest and easiest source for games in the northeast, maybe on the whole east coast.

This is true.  However my sources arent that great for these things.  I dont visit newsgroups and when something does popup its either something i dont care for or something overpriced.
Back in MY day we lived on the moon and we had to build a rocket ship from scratch to get to the Earth before we suffocated.

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #162 on: February 07, 2008, 04:25:00 pm »

Read the sequence below... and try to understand that newsgroups and ebay aren't the place to get the best deals.  Learn to find leads and follow them and stay with them.  I know guys who will stay in contact with a person for well over a year before they get the games from them.


Level42 why is it that you keep getting all these sweet projects?

I think it's because the guy who works the hardest finds the most games.  That's all there is to it.

For some reason i dont think im going to find a centipede or a sw vector anywhere near me. 

However my sources arent that great for these things.  I dont visit newsgroups and when something does popup its either something i dont care for or something overpriced.

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #163 on: February 07, 2008, 04:35:06 pm »
Uhhmmm, well honestly each and every cab I've got comes from the Dutch Craigs' list variant. (not the Pinball though).

This site is used by everybody here to sell anything. It's a pain in the ass of e-bay, at least it was, because e-bay is nothing here for domestic stuff (I do use it for international stuff). So, naturally, e-bay bought the site.....and the previous owner is now very very rich....

The thing is the Dutch don't like to pay for anything on the internet.....so e-bay is mostly ignored.


I do have a contact like Chad mentions now though, through one of those deals.

Maybe you should have a look at the KLOV forum.




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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #164 on: February 07, 2008, 04:36:15 pm »
He guys, looky what I found:

http://www.atarigames.com/page5/files/page5_1.pdf


Very interesting reading !!!

So who's got that rare 19" Centipede cocktail ?? :D
« Last Edit: February 07, 2008, 04:39:26 pm by Level42 »

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #165 on: February 07, 2008, 04:43:11 pm »
Chad chad chad.

I could have meant why does keep getting the cabs/projects as in how is he able to get away with it.  He doesnt live alone.

Yes people who work harder get the better things.

Im going to stop now so Level42 doesnt yell at me.  Sorry for the offtopicness.

edit-Level42 that pretty interesting that when they replaced the cocktail with an upright more people played it.  In would figure in a bar people would avoid playing for lack of a place to put down a beer.

edit-nevermind i think i read that wrong.  they just added a bigger cocktail cab.
« Last Edit: February 07, 2008, 04:50:34 pm by SithMaster »
Back in MY day we lived on the moon and we had to build a rocket ship from scratch to get to the Earth before we suffocated.

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Re: I don't believe it, another classic added => Centipede ! SHE WORKS !!!!!!!!!
« Reply #166 on: February 07, 2008, 05:32:12 pm »
aha.....yeah......my wife is great about them....well not as great as Darthnuno's wife, but she accepts them, and there is still that long-term goal of putting them all either upstairs or in a new shed in the garden....

I guess she prefers me to play with the games then with other.....ahhh never mind :D

I don't think I've ever seen a 19" centipede cocktail. From the info, the thing was larger, not just the monitor.

Also interesting: There was a lot of negative response about the smaller size of the trackball. Lots of test players wanted a 3" (hence 3" on Millipede ?) There are also test-player suggestions that there should be exploding things on the screen (also included on Millipede) and bees.  ( I think Millipede has bees ?)

Not a single word about the placing of the fire-button though.....I had hoped to read something about that.

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Despite my son's birthday last weekend I managed to do a little work on the Centi....

My Centipede was equipped with some black-painted woodstrips on the bottom of both sides and the front. I was pretty sure that this was not original, and after seeing Luc's Irish Centipede, I was sure that this was not standard.

So, I wanted to remove them. Gotta say, they did a pretty good job. It was a bit of a gamble, because of course there would be damage of the nails, and possibly of the removing tools...but I figured I'd like it better still.

So I put it on a cart and started to pry with pliers and later a knife that I put behind the strip....






Clearly, the black paint of the strips transfered to the vinyl.... I could scrub most of it off relatively easy. Also turns out this is now the whitest part of the side-art, so I guess these strips were put on very early.



Also, time to install the new T-molding........only to discover that the T-mold I ordered at Suzo is NOT wide enough  :banghead: It leaves a small part open at the side. Doesn't look like it should, but I figured to finish it just as well.... I couldn't really see much difference in width when I held the old and new op top of eachother. Could be it's a metric size, just a little narrower.....next time, it will be t-molding.com again......



It turned out the custom woodwork was also used as alternative to the original legs. Pretty firmly built. Since it doesn't show much on the front (black on black), I decided to let it there where it is.

Now I need to repair the holes and restore the "vinyl" look at the bottom sides. Anyone have any suggestions ?

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Ok, remember this:


Thougt it was about time to fix this mess. I still had the monitor (TV) and rest of the electronics on seperate mains cables, so I put them together to let it work with just one mains plug and start everything up in 1 go.

I also replaced the experimental SCART wiring with a proper cable. Soldered all the resistors at the right places and neatly isolated everything with shrink-tube.  Fixed the cabling everywhere.

Don't look at the coin door, as that is still a mess....


Here's how I tapped into the +12V and the +5V wires for the SCART cable. These snap-things are great when you need to tap the same voltage (or signal) to an extra wire. The main advantage is that you don't have to cut and strip the cable. You simply put it on the existing wire, add the extra wire and press the metal "knife" with pliers. Done.
I even used one side of a resistor on one of them, no problem (to lower the +5V to +3V).




I also used them to tap into the +5V and GND wires of the trackball to power the super bright LED:


You can still see the old wires that I had temporally soldered to the encoder pcb.Of course I removed them a bit later.

And the same for the fire button:



O and, yes I did clip of the excess on the ty-raps..... :D


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Here's a better pic of the tap-on connector I used. Anyone else using them ? I bought them at Suzo, so I bet Happ sells them too.

They're great.



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Yeah, yeah progress is slow. I just have to spend a lot of time on a study lately and also working on some friend's machines.

Anyway did a bit of fixing up the little coindoor and the big coindoor frame.

The bigone, I only cleaned it and put a single layer of black paint on it. It was nearly 100% ok, just some scrubs and things.
The little one had "rust" spots (although it didn't look like rust under it at all". So that one got the full treatment of sanding, primering, and a couple of layers of black. I guess I need to buy a bit more expensive paint next time....
















Slapped a new lock in it......and that's it.  It actually looks a lot better than on that last pic, the flash is spoiling it. Maybe not perfect, but a lot better than what it was and I'm happy with it.

The big coindoor will be pictured when I've re-installed the mechs etc.

I've decided not to try to remove the scratches from the stainless steel door. I guess I will screw it up more than it is now. I may put that Atari sticker on the spot that "needs" it. This will take away the eye from the scratches ;)

When the big coindoor is ready I only still have to clean the lower sides and it will be 100% done ! That will be my first completely finished restoration, as the Galaxian is still needing the bottom kick-plate art to be fixed....
« Last Edit: May 19, 2008, 10:50:03 am by Level42 »

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She is ready !

It's been quite a while, but I "finished" the restoration today.

Here are the last pics:









However hard it will be, she will switch places with the Puckman that is in storage in my shed now. I need to do a "quick" job this time. My son is urging me to start on the Mario Bros. for obvious reasons. But I'm still not sure. Mario or DK ?

(In all honesty, I still have to do the lower parts of the sides, but I figured it would be better to do those when she comes out of storage again....)

I've got a monitor and 48in1 plus Jamma harness ready for the Puckman....

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So Level42 is this the "original" Euro version of the coinbox?



 ;D I'm kidding of course.......nice job. It looks great.  :cheers:

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Kidding? That is standard isn't it?
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I haven't seen this kind of set-up of coin-box on any other Centipede yet, not even the Irish built one's.
But I am 99% sure that it was factory made. The whole construction looks like it has been built there right in the beginning. It is indeed very weird. Maybe it was something country specific or special request from a distributor or something like that ? I wonder if I can give the bag a wash, since there's a metal ring inside.

O well, it's in my shed now so won't be happening until it gets out and moved into the REAL gameroom....

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  • A Suzo stick is a joy forever...
Re: I don't believe it, another classic added => Centipede ! FINISHED !!!!
« Reply #176 on: February 12, 2009, 05:36:34 pm »
Well, this cab was put into storage working and well. It got moved to another location and back in the mean time, and I don't know what happened but the TV was not working anymore. Everything else was fine still.
The TV did get it's 230VAC and I tried switching it on manually with the built-in buttons and with the remote, no go.

Also, coincidently, I had found a G07 PCB set in Germany. I only had to pick it up and it was completely free ! It also included a large arcade power supply, don't know what game it's from but maybe handy for test set-up.

Anyway, I found back the original CRT in my attick, installed the "new" PCB set and tested it. And it works fine :) !

Only still need to adjust the horizontal size with the horizontal coil. Everything else looks as sweet as you can expect from a 25 year old CRT.

This also solves the (small) annoyance I had with the TV set, that I wasn't able to fill the screen completely vertically (so horizontally when the monitor is inside the cab). Not a big thing, but I like to have these little things perfect when I know they can be.

I'll do the obvious cap-kit on the new PCB set and restore the G07 to it's old glory. Might even find out what's wrong with the old board now I can compare.

It's great to have the new gameroom, can work on some cabs and leave stuff around without the wife complaining :D I'm sure it will look like a workplace every now and then, but hey it's better than having to work in the kitchen :D