Peter Packrat System 1 Issues

flynn54321

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I was wondering if anyone can help with this problem. My Peter Packrat is giving me some random problems.. My buddy Don1400 and I have narrowed it down a little but here's the deal.

The game comes up on the screen just fine - however audio is random. The background attract music plays when it wants to - and it gets locked up sometimes - meaning the song will be playing and then a note will hold and hold and hold - so its just a long drone. Also when you actually play the game the playing sound effects are random - some work sometimes and then not others - or there are no sound effects at all.
Don1400 said maybe the sound chips are bad.
Are the sound chips located on the Main or daughter board? What location and how many?
Also he mentioned that if we could find the code for the game we could check the check sums of the rom chips? I think I said that correctly.
Also the game has a problem crediting up sometimes - not always. I have check and cleaned all connections and solder joints on the board. Can anyone offer some help?
 
Yeah, its the little cock thats mounted on the left wall.

I suspect if you pop in a few other boards and they work in it then its the daugher card itself. Try that once and see if you get the same issues with a roadblaster in there or whatever else you have. If you dont have any other ones, I could ship something out, or you could ship yours here and I can test. Just to help narrow it down if you find yourself at a dead end.
 
yeah it would definitely help if I had another board to try and isolate the problems.
Unfortunately I traded my Roadblasters about 2 years ago and sold my Indiana Jones about a year ago... so I have nothing to test it with.
Brother that would be very helpful!
 
that would be appreciated - it would at least help us narrow down whats up with this. Found the stuff online to check the check sums on the chips - so we can do that too.

Does anyone know exactly which chips are the sound chips? Are they on the main or daughter board?
 
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