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Author Topic: Jennifer has issues  (Read 2404 times)

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jennifer

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Re: Jennifer has issues
« Reply #40 on: November 11, 2020, 06:12:01 pm »
A pictorial view (or walking video!) of your workspace and tool collection would be pretty fun I think.

I look up to (envy!) all who own good welding gear and can use it well.
I have tried that and it diddnt go so well, I haven't made a whole lot of friends around here if you can imagine that, mostly just talked to myself...If you are trying to build a workstation that is a horse of a different color however.  The most overlooked tools on a workbench (Imo) is your voltmeter, a good one is capable of things most people simply do not understand, Using it to it full potential puts you in a really good place as far as trouble shooting goes...And the oscilloscope, to fully truly understand one would almost eliminate the need for a volt meter at all, short of convince...A 25MHZ analog scope are almost given away on E/pay usually around 50.00...A good upgrade for your workbench after you figger that out would be a 100mhz 4 channel (again analog, Imo) you won't need much more for older arcade machines...Digital scopes are way of the common world, and do have upgrades over analog, but there is also lag time to consider, and secretly I have always been skeptical, over cost, value, and usefulness.
« Last Edit: November 11, 2020, 08:01:54 pm by jennifer »

yotsuya

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Re: Jennifer has issues
« Reply #41 on: November 11, 2020, 07:43:22 pm »
A pictorial view (or walking video!) of your workspace and tool collection would be pretty fun I think.

I look up to (envy!) all who own good welding gear and can use it well.
I would be fun, and quite helpful to everyone involved I would think, Years ago Jenn downsized considerably and sold all my commercial tooling and plating tanks, and ever since I have had a serious space problem and pretty much set up to do a job anymore, thats not fun to watch, since it takes considerable time...However I do have some really curious things that have little to no support on the internet, (vectorscopes, and rejuvenators, oscilloscopes, and now this Fluke project come mind) that really should be shared from a how to standpoint...I will work on that
I was given a nice oscilloscope for free recently- Id love to learn how to use it.


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jennifer

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Re: Jennifer has issues
« Reply #42 on: November 11, 2020, 08:11:00 pm »
A pictorial view (or walking video!) of your workspace and tool collection would be pretty fun I think.

I look up to (envy!) all who own good welding gear and can use it well.
I would be fun, and quite helpful to everyone involved I would think, Years ago Jenn downsized considerably and sold all my commercial tooling and plating tanks, and ever since I have had a serious space problem and pretty much set up to do a job anymore, thats not fun to watch, since it takes considerable time...However I do have some really curious things that have little to no support on the internet, (vectorscopes, and rejuvenators, oscilloscopes, and now this Fluke project come mind) that really should be shared from a how to standpoint...I will work on that
I was given a nice oscilloscope for free recently- Id love to learn how to use it.


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Dave over on EEEV blog is your man, He will, tear them down and explain them inside out...You will love that thing, once you get going with it, basicly it is XY, time/volts...And the probes usually x100 to get it down to safe input to scope, (yes add to math, but it is not that hard)...I was deathly afraid of mine at first, diddnt want to blow it up, but come to find out they are cheap as dirt, since few actually understand them anymore.(The analog ones anyway, digital latch are a different story) And for checking random Nos electronics, and input signals (quality), and working on boards... INVALUABLE.
« Last Edit: November 11, 2020, 08:29:14 pm by jennifer »

yotsuya

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Re: Jennifer has issues
« Reply #43 on: November 12, 2020, 01:00:20 pm »
A pictorial view (or walking video!) of your workspace and tool collection would be pretty fun I think.

I look up to (envy!) all who own good welding gear and can use it well.
I would be fun, and quite helpful to everyone involved I would think, Years ago Jenn downsized considerably and sold all my commercial tooling and plating tanks, and ever since I have had a serious space problem and pretty much set up to do a job anymore, thats not fun to watch, since it takes considerable time...However I do have some really curious things that have little to no support on the internet, (vectorscopes, and rejuvenators, oscilloscopes, and now this Fluke project come mind) that really should be shared from a how to standpoint...I will work on that
I was given a nice oscilloscope for free recently- Id love to learn how to use it.


Sent from my iPhone using Tapatalk
Dave over on EEEV blog is your man, He will, tear them down and explain them inside out...You will love that thing, once you get going with it, basicly it is XY, time/volts...And the probes usually x100 to get it down to safe input to scope, (yes add to math, but it is not that hard)...I was deathly afraid of mine at first, diddnt want to blow it up, but come to find out they are cheap as dirt, since few actually understand them anymore.(The analog ones anyway, digital latch are a different story) And for checking random Nos electronics, and input signals (quality), and working on boards... INVALUABLE.
I really learned how to use my probe this summer when I was fixing a Crazy Kong board I screwed up. It was the first time I used one where I felt like I actually knew what I was doing.


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jennifer

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Re: Jennifer has issues
« Reply #44 on: November 12, 2020, 02:06:48 pm »
I have noticed most people get good with that probe, and never move on to the scope, never really understood that, in comparison you can see the signal, and random triggers, But I am not here to sell you on the obvious...It is scary (it was for me anyway) buttons knobs oh my, but really is not so bad, I dumped out my junk can, made a 555 timer circuit on the breadboard and the rest is history, The biggest trouble was understanding the probes, well in hindsight 1.1 and x100 are the ones I use on the bench, Problem 2 was actually finding the signal on the screen, it is a
math thing and got to dial it in to what you are looking at...and #3 earth ground potential higher voltages could vaporize the probe in your hand, (Dave has a good vid on the subject) but that scared me I will not lie...You will like that thing, this much I do know😉

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Re: Jennifer has issues
« Reply #45 on: November 13, 2020, 06:34:33 pm »
man, i wish i could afford the 1000 plus buckazoids a modern scope costs... i bought old AF techtronix 454 scope from the 1960's. got it at the government surplus just to have one. 150mhz with no snapshot memory or anything isn't great... but it's better than being blind.

jennifer

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Re: Jennifer has issues
« Reply #46 on: November 14, 2020, 01:37:58 am »
I really don't think we are missing much with those digital scopes, although that auto scan thing might be nice, But secretly I have always been skeptical since digital in theory anyway would have a refresh rating as opposed to liner, one would think...Most of my stuff is vintage Leader, and my go to scope is no exception only 100mhz but good enough for old boards over here on this side of the tracks... I learned on a 25mhz Phillips, (curious machine, still use it) but it actually is portable with the batteries (if you want) and since it can run on batteries it actually has a floating ground which is kind of rare on scopes...Both of them were calibrated to a 10mhz rubidium frequency standard (from a cell phone tower).
« Last Edit: November 14, 2020, 11:55:14 am by jennifer »

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Re: Jennifer has issues
« Reply #47 on: November 14, 2020, 03:46:39 pm »
and since it can run on batteries it actually has a floating ground which is kind of rare on scopes...

Yrs ago I was a TV repairman. Most TVs back then had a chassis that sat at half mains potential. If using a mains powered scope it was vital to either remove the earth in the scope's power plug or use an isolation TX. Either that, or let the magic smoke out when you stuck the ground lead onto the chassis!

jennifer

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Re: Jennifer has issues
« Reply #48 on: November 14, 2020, 11:33:26 pm »
You are braver than I, That sounds all "horrible bosses" jobs, on faulty high voltage equipment non the less, Like I said earlier, that potential difference had me losing sleep for awhile, so I only generally use the scope for low voltage TTL stuff,  although on working with tubes or someting yes, a firm believer in using an Iso...However I really don't want to be scaring anyone away from at least trying one, especially Yots,  because it is really is one of the tools needed for fault finding with any level of credibility and success.
« Last Edit: November 14, 2020, 11:49:16 pm by jennifer »

Osirus23

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Re: Jennifer has issues
« Reply #49 on: November 19, 2020, 12:41:12 pm »
Whoever turned that Pacman upright into a "Beastie Feastie" needs to have their face acquainted with some concrete.

jennifer

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Re: Jennifer has issues
« Reply #50 on: November 20, 2020, 08:59:55 am »
I know right, seems a little crazy, Thats the way I got it spose it was about the money back in the day not saving old cabs...I am going to put it back to a Pac-Man, nothing fancy, some yellow paint and decals (possibly stencils)...the beast board and marquee probably just get sold as parts.
« Last Edit: November 20, 2020, 09:05:39 am by jennifer »

jennifer

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Re: Jennifer has issues
« Reply #51 on: November 20, 2020, 06:33:14 pm »
From a restoration standpoint I would normally have around 2k into that cab, (with the Happ flat-screen, and micro switch controller), that happens to be more than the market dictates however, and will wind up as trade bait, on other games, cars, or boats (easier to sell)...I could knock it apart and clone it as multiple, but really don't like doing that since it is an original cab with a serial # and build tag...I have done many of these builds, so many in fact, this one will only cost me around 400.00 to finish, since I already got the parts and art just laying around from other jobs...New this machine cost around 3k (back in the 80s) and judging from the look of this one was a good investment back in the day. Adjusting for inflation I would guess 6k today was about the same money.

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Re: Jennifer has issues
« Reply #52 on: November 20, 2020, 09:07:12 pm »
We eagerly await your restoration pics

This forum needs more threads about Arcade 1Up cabinets.

jennifer

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Re: Jennifer has issues
« Reply #53 on: November 21, 2020, 02:00:25 pm »
The day to day of working on a dozen machines at a time is so random it would be boring to watch, A problem board for example can take an incredible amount of time to not only troubleshoot but work around fixes with obsolete parts and crossovers....  I tried a build thread with that Getaway (ya getting back to that one) but with so many machines it is hard to document and at best Poor Jenn would just be forever taking pics and never getting any work done. I will do some done pics however of some done ones out of this batch as this progresses...I have been selling machines and went from 200 back down to a hundred or so again as an attempt to upgrade the workbench.

Osirus23

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Re: Jennifer has issues
« Reply #54 on: November 21, 2020, 06:54:27 pm »
If you restore the Pacman and sell it hit me up first - just keep the CRT in it though.

jennifer

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Re: Jennifer has issues
« Reply #55 on: November 23, 2020, 12:11:25 pm »
That 9010a Fluke project has become bittersweet, I finally got through the manuals, and started in on sourcing parts for the pod builds...Well, those chips (74LSxxx) are quite obsolete, and comparing equivalents, this may wind up a full blown bench project if I aint careful.🙄

jennifer

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Re: Jennifer has issues
« Reply #56 on: Yesterday at 02:58:20 am »
I have decided not to pursue the logistics of that tester here in this thread, For those of you that were potentially looking into getting one aparently Klove (dont quote me on that, I haven't been over there to see it) has a project board on converting the Fluke over to a USB, and running complete test script on certain games, and probably more with time, it may be worth checking out if you have one...Jenn, well not so much, it is to just be used more as the self tests on my bench, (rom,ram, bus, repeating signal loop)...Ugly spendy progect however, Just be careful in that respect and do the research first.
« Last Edit: Yesterday at 03:01:19 am by jennifer »

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Re: Jennifer has issues
« Reply #57 on: Today at 02:52:52 am »
I use some assortment of these things every day of my life on homes, cars, cabinets and countless other stuff and still can't tell you everything just this crap can do
 :lol

Can't wait to see the mess I can make when I try to fire up the old HP oscilloscope I ran across last year
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