Pole Position Car Sound

flynn54321

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I have a pole position board that has one little problem - the car doesnt make any sound... all other sounds are there, crashes, other cars, voice at start etc...
Does anyone know what chip or chips control this sound? I have a few parts boards that I could swap chips with
 
did you do the self test?

screech and crash sounds are at 9E

Motor sounds 12E and 12F


If it fails the self test.. post what it says..

you have the manual?
 
In self test it says ram ok rom ok...

Tried this board with OTHER boards that do work (rechecked etc) plays just fine - but no MOTOR (car) noise... everything else is fine! Weird!
 
well.. I guess I would then replace the one listed for motor sounds and see how it goes from there... :)

also.. check the traces for that chip for continuity... if its socketed, test from the top of the leg to the back side of the board to the corresponding trace..

just to make sure the socket is good..
 
In self test it says ram ok rom ok...

Tried this board with OTHER boards that do work (rechecked etc) plays just fine - but no MOTOR (car) noise... everything else is fine! Weird!

Not sure what you mean. Do other known working boards have same problem in your game?
 
Check the LM324 on the CPU board... upper left corner with the board interconnects down.

I was missing all kinds of audio on my boards... I ONLY get engine sounds. I checked the LM324 and 3 of 4 amps in it are dead. So... I'll swap that out and hopefully get my sounds back, might be work checking for you as well.

Okay, never mind... did next to nothing for me. lol

Good luck with your problems.
 
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