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    Yamaha cr 2040 Phono stage static/hum

    Hi everyone. I have a cr 2040 that’s recently developed an odd static/hum on the phono input. When I first got the unit many months ago. It had a more audible, clear hum, coming from both speakers. which turned out to be a bad solder joint on the power supply board. After resoldering the bad...
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    Pioneer sx550 troubleshoot help.

    So today I went to goodwill and found a pioneer sx550. Looked in decent shape and was only $20 so I bought it. Got it home connected it to some speakers in the garage and had all the typical issues. So I opened it up (it was surprisingly clean inside) and deoxit the pots and selectors. That...
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