Pole Position Graphics and Sound Errors

animesuperj

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Picked up a Pole Position the other night that played blind. Swapped the monitor out once I got home, and there are a couple graphics and sound errors with it.

From what I could tell, the errors are the following:
Graphics:
- White blocks on track
- Red/White checker pattern on side of track not correct

Sound:
- Startup tune too high incorrect
- Passing other cars incorrect
- Ending/name entry tune incorrect

So, some of the graphics and sounds are fine; but others are incorrect. I took a quick video with my phone. If anyone notices any other issues, please let me know. Also, any ideas on how to fix this?

 
First, check your voltages at the farthest test points. You may have to wire the test points together (search KLOV) and direct to the supply to overcome design deficiencies.

Next, clean the card edge and look for corroded or burnt connections. Fix any you find.

Then, unseat all the roms, clean the lens and sockets, and re-seat.
 
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