Arcade Collecting > Restorations & repair
I don't believe it, another classic added => Centipede ! FINISHED !!!!
Level42:
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.
Level42:
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 ?
Level42:
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 ??
Level42:
More pics......those damn sockets almost cost me more than the IC's !!!! Arcadechips.com should start selling these as well :D
Numbski:
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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