Location: Lone Tree, Colorado
The owner had done some previous work on the sound board because it was blowing fuses.
When replacing capacitors, diodes, and ROMs, always double check the polarity.
Backwards ROMs. The notch in end edge of the ROM chip should align with the notch in the socket and silkscreen image on the board.
I determined that the 6803 controller was bad, as well as one of the ROMs.
