Pioneer SX-750 Has Constant Hum - Any Ideas?
I bought a pioneer sx-750 off ebay. It was supposed to be free of any issues but has a constant hum. I have ruled out any obvious grounding issues. Even took it to another house with one speaker and got the hum. It stays at the same level when you increase the volume. The caps look good throughout. Any suggestions are greatly appreciated. I hope to get this back to a listenable unit. For now, it's listenable with enough volume to help mask the hum but it's still noticeable. Thanks!