Installed ColorDMD, turned on, smelled a slight burning smell, no sound from backbox speakers. Cabinet speaker is working. Speaker wires are fine, not pinched under display. Checked solder points. Did factory reset. Fuses on soundboard ok. Reseated the connectors on soundboard. Would greatly appreciate any insight. Thanks, Art

Hi Randy, thanks for the quick response. I did not. The instructions are pretty straightforward. Didn't have any doubts or difficulties. Going to the pharmacy to get a 9 volt battery and will test the speakers.

Great idea. Just did that and the problem persists. The speakers seem to test fine with a battery.

Could sharing the same ground point possibilitate this?

Thanks. It helps a lot. I'm still learning about pins and have only done basic soldering so far. This game is actually not that bad sans the callouts.