Question about Nakamichi AV-1S Receiver
When the button is pushed it makes a crackling noise as if the connection is bad. Too cover off cannot see if tone switch connector has accessible solder connection. Any suggestions appreciated
How old is the receiver?
Does it crackle only when pushing the button or afterward in either position?
If it's getting old (10+ years) I'd suspect dirty contacts in the switch. If it's not completely sealed you can spray some contact cleaner in it and operated it repeatedly till it stops crackling. I found that what works best on switches and potentiometers is "Lube-A-Trol" heavy duty lubricant from Tech Spray. Even if the contacts aren't the problem that stuff will keep them that way longer. If the switch is completely sealed and there are no bad solder joints (sometimes the only way to be sure is to resolder them even if they look good), then I'd replace the switch.
Posted on Jan 07, 2014
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Posted on Jan 02, 2017
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