I have a DK JR cocktail with a power supply that has recently developed a pretty loud hum. It's definitely coming from the supply and not the speaker, and it's present whether or not there's a board hooked up to the harness.
What could be causing this? Monitor/sound board have been capped. Powersupply is, as far as I know, original and untouched.
What could be causing this? Monitor/sound board have been capped. Powersupply is, as far as I know, original and untouched.

