Hello,
I'm fixing a recently acquired Raven (Yeah, I know.. it was cheap ) . CPU is OK now, but I have a problem with the sound card. Music starts playing, but after some play time (generally while the ball is in the bumpers), the music hangs, and the led on the sound board stops blinking, so obviously the music part of the card crashed. Sounds are still working. Generally a press on the reset button on the card and music starts again, but not always.
Visually the card looks very good, solders <seem> OK. I removed and reseated the 2 proms with contact cleaner. No way, a few bumpers and the music crashes.
Think it's not going to be an easy one..