Hi, I recently picked up a Bally HMM from a barn (I'm keeping a thread going in the Shop Logs section) and it has a sound issue where it very loudly plays white noise over all the actual sound effects. I've searched and found lots of advice for missing sounds but not for this problem.
Video:
You can hear the speech and the odd sound effect but not much of the music really.
I've adjusted both volume pots but they just make the white noise louder... reseated all the socketed chips and pulled and replugged the 2 connectors to no avail. Light on sound board flashes 6 times, the 5th flash is much longer than the others.
Any advice of what to check next appreciated.
Video:
You can hear the speech and the odd sound effect but not much of the music really.
I've adjusted both volume pots but they just make the white noise louder... reseated all the socketed chips and pulled and replugged the 2 connectors to no avail. Light on sound board flashes 6 times, the 5th flash is much longer than the others.
Any advice of what to check next appreciated.