After reading all the threads here, I was convienced my ROM board PIA chip was bad. I replaced the chip with a socket/new 6821P, but I still have no sound.
As you can see from the video here, the error display on the ROM board has a missing segment. This has not changed since changing the ROM board PIA. When I first received this cab, the 0 had all segments lit. Also, the Sound board test switch works perfect, and places the explosion and end game sounds over and over until power...
Read more
As you can see from the video here, the error display on the ROM board has a missing segment. This has not changed since changing the ROM board PIA. When I first received this cab, the 0 had all segments lit. Also, the Sound board test switch works perfect, and places the explosion and end game sounds over and over until power...
Read more