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Sinistar Cabinet Problems

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EightBySix:
It's obviously disabled itself to protect you. Sinistar is much to scary to play... True story.

Los Abrazos Rotos:
As soon as you touch pin 22 you're gonna hear that roar... Sinistars gonna getcha...

boardjunkie:
It prolly needs a decent going over. If you have no experience in electronic/arcade machine repair, I would suggest leaving it to a pro. You may cause more damage screwing with it. Then it will cost that much more to have it professionally repaired.

BewareILive:

--- Quote from: boardjunkie on May 17, 2012, 06:44:56 pm ---It prolly needs a decent going over. If you have no experience in electronic/arcade machine repair, I would suggest leaving it to a pro. You may cause more damage screwing with it. Then it will cost that much more to have it professionally repaired.

--- End quote ---

Do you know what might be causing it? And I've fixed some machines before, I know what not to mess with at least.

boardjunkie:
It could be anything....the game is 30 years old. The power supply (and/or associated connectors) can (and will) go flaky and cause damage to the 4116 rams. The rom board cable is known to cause problems. Chip sockets may need to be replaced and chip pins cleaned. There is a "tune up" procedure I go thru before even trying to shoot down a problem. Saves headaches down the road.

Since you don't seem to be able to interpret the service manual procedure for checking standby voltage on the cmos ram, that says to me you're not that familiar with the procedure for t-shooting problems with old games.

So....did you clean the battery terminals and install new AA batteries on the CPU board?

http://www.mikesarcade.com/cgi-bin/spies.cgi?action=url&type=info&page=Williams-hardware.txt

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