I was wondering if anyone could help me. I just got a new DMG but there's no sound. I thought it was the speaker so I swapped the front circut from another gameboy. Still no sound. Then I try the screen original screen on the other PCB and it works so the problem has to be on the PCB. I get sound from the headphone jack though. It's completely unmodified. So I'm not sure what's up. Quite curious indeed...
It's a CPU-04 if that helps in any way.