Looking for repair for a ghouls 'n ghosts pcb.

Archived from groups: rec.games.video.arcade.collecting (More info?)

Hello,

My ghouls n ghosts pcb got a little wrecked when I was testing out
something on the power supply. I touched the 12v to something else hot
and it zapped the sound on the ghouls n ghosts board. When I turn it on
everything checks out ok. The game plays fine. There just isn't any
sound now.

Does anyone repair these or can give me ideas on what to check to repair
myself?

Thank you.