Sharp SC9570AV distortion, missing output channel

~15 year old, wasn't plugged in/used for past 3-4 years.

I have a recording of the working speaker, kind of cracking high distortion. Nothing out of the other one. These are using his 120w. I have some 10w PA speakers that both work on, so it probably has issues with the higher load from the 120w speakers but I might be wrong

I brought a 40W PA amp to his house and hooked his speakers to and both sound fine on it

Caps DO look good, but might be dried out

First recording is on AUX from Cable receiver. That in itself sounds worse than the second selection, which was the receiver

I know it's not a high quality brand that some of you deal with, but this man dosn't have much money right now, cost him a good bit back in the day. Single package amp, I think A-B, on fairly big heatsink with fan

CD does not work but I bet it's the belt
 

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