I am having the weirdest issues ever after picking up a Phantom of The Opera and am hoping someone can help. At first the Sound/Music was working but only playing though SP1 (right panel speaker)... then out of seemingly nowhere it stopped playing the music and would only play one sample for all the triggered events "sing again!" and no music at all. I started buy purchasing and replacing all the following EPROMS:

PHANTOM OF OPERA (DE) EPROM F5 Voice
PHANTOM OF OPERA (DE) EPROM F4 Voice
PHANTOM OF OPERA (DE) EPROM B5 3-2
PHANTOM OF OPERA (DE) EPROM C5 3-2

Well, I just put them in and the same issue is happening, even with a Factory Reset. It plays "sing again!" for every event and doesn't play the music at all.

Does anyone have any ideas what could be going on? Or better yet, does anyone have a replacement board? Many thanks in advance for any info!