I acquired an Adcom 5503 as a project to use for my mini home theater and listening. This is the first amp I have had ever so I'm not familiar with them. The power cord is missing the ground prong so I'll need to get a new one soon.
I found the two of the copper heat spreaders had fallen off and the black plastic cap covers have come off 9 of the 12 caps. I powered it up by itself with nothing connected to it it warmed up a good bit. With my HF IR thermometer, I was reading 119*F from the left heatsink, 117*F on the left, and 124*F on the rear heat sink.
Is this normal for this to get warm without anything going through? It just doesn't feel right to me.
How do I know if I need to replace the caps or other electronic parts?
Anything special to use to clean up all this caked on dust?
I'm kind of wary of hooking up my speakers to amp right now to test.
I found the two of the copper heat spreaders had fallen off and the black plastic cap covers have come off 9 of the 12 caps. I powered it up by itself with nothing connected to it it warmed up a good bit. With my HF IR thermometer, I was reading 119*F from the left heatsink, 117*F on the left, and 124*F on the rear heat sink.
Is this normal for this to get warm without anything going through? It just doesn't feel right to me.
How do I know if I need to replace the caps or other electronic parts?
Anything special to use to clean up all this caked on dust?
I'm kind of wary of hooking up my speakers to amp right now to test.
