Will the game boot with the sound board disconnected? 
It may be the sound board needs repairing ,  cracked connector pins on sound board ? ,  the  caps should be replaced to , These cap kits are available from great plains electronics  , good luck

Hi Ralph,

Yes the game boots no problem. It's just the sound board that doesn't boot, the led on the sound board is locked on at start-up. The sound board has been gone-over and tested recently (all caps were replaced , etc.) so it may be a (female) connector problem, or something may have failed again on the board. That's why I want to test it in someone else's game to make sure that it is definitely a board problem before I start replacing things on the board again.