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Author Topic: Pac-Man PCB quality "A" vs. "B"  (Read 6140 times)
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Bach730
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« on: May 11, 2014, 03:15:42 pm »

I just picked up a Pac Man upright this weekend. It's in great shape but isn't working. Looks like the manual references both types of boards for schematics, wiring, etc. Is there a relatively easy way to tell if your pcb is "A" or "B" quality?
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iankellogg
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« Reply #1 on: May 11, 2014, 08:42:27 pm »

as far as I can tell from research it has to do with the custom IC's. Does your board have daughter boards. if so its a B.
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John's Arcade
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« Reply #2 on: May 11, 2014, 09:34:46 pm »

as far as I can tell from research it has to do with the custom IC's. Does your board have daughter boards. if so its a B.

Basically, NAMCO made a custom chip for the Pac-Man board to prevent piracy, etc. And, well, I think Bally ran out of them and reverse engineered it and replaced it with all those parts on the daughterboard.

I am not sure if that makes it an A or B though. The board itself is technically the same, it's just that one chip.
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Bach730
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« Reply #3 on: May 12, 2014, 06:51:48 am »

Thanks! I'm probably going to have it tested at least. It has 2 daughter boards.


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Bach730
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« Reply #4 on: May 12, 2014, 10:54:08 am »

John, do you have a reputable person who tests and repairs pcb's at a reasonable price?


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John's Arcade
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« Reply #5 on: May 12, 2014, 11:29:28 am »

John, do you have a reputable person who tests and repairs pcb's at a reasonable price?


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I don't. You can try Adam here but he is always booked up:

http://www.onecircuit.com/
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Bach730
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« Reply #6 on: May 12, 2014, 11:57:42 am »

Thanks!


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iankellogg
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« Reply #7 on: May 12, 2014, 12:55:43 pm »

I do boards cheap. At the moment I only ask for shipping to be paid. As far as I know Adam is no longer taking repairs.
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Bach730
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« Reply #8 on: May 12, 2014, 03:00:32 pm »

Why don't you charge?


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iankellogg
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« Reply #9 on: May 12, 2014, 06:31:33 pm »

One because it's john's forum and I give deals to people here and two because I'm still a nobody in the repair world. As far as pac man is concerned I can just trade you my spare working board and keep your broken one.
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Bach730
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« Reply #10 on: May 12, 2014, 08:18:01 pm »

That's cool. Well, I don't know if mine is broken yet. I need to replace fuses, check the power supply, then make sure there are no unwired parts. This thing sat in a garage for 15 years.
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Bach730
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« Reply #11 on: May 12, 2014, 08:19:30 pm »

It'll be a couple of weeks before I can get to it, but I'll contact you as soon as I've eliminated the other possibilities.
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iankellogg
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« Reply #12 on: May 13, 2014, 07:09:57 am »

sure thing.
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Bach730
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« Reply #13 on: May 13, 2014, 09:35:49 am »

Where can I get anti-static packing for shipping back and forth?
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iankellogg
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« Reply #14 on: May 13, 2014, 10:59:24 am »

Ebay has been kind to me for that.
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