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RX-770 Input selector noisy - can this be fixed economically?

Mechanical/Electrical contacts appear worn or are dirty and cause noisy connections across all channels disrupting listening and is very annoying cause it impacts randomly and appears to be deteriorating. Rest of the unit is functioning normally

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There are a number of ways to fix this, a quick fix is to rotate all the controls through their full range(with power on) this will give a quick clean to the contacts. The best thing would be to get the unit serviced at a Yamaha Audio dealers. They may have to replace the failed control switches, This will be cheaper than replacing the complete unit. You could do this yourself, if you feel confident to replace the switches, they should be available by part number on the internet.

Posted on Jul 22, 2013


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SOURCE: Input selector on my Yamaha RX-V596 stuck

Hi Dush

Sounds like the processor has locked up in the unit. Try powering it right down from the wall socket for a day to reset, and then retry operation. If that does not work, leave it disconnected for about 10 days to erase backup memory completely and then try again. Good luck. Don't forget to give me a "FixYa" rating if this works. If it doesn't, get back to me in here and we can talk more about it.


Posted on Feb 16, 2008

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SOURCE: Sometimes only one channel plays

It sounds like you know what the problem is. Get it fixed.

Or try this temporary fix.

Or turn it off and manually operate the selector and all controls a thousand times to wipe the apparent oxides from their contacts.

Posted on Jul 06, 2011

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Sometimes only one channel plays when playing CDs or DVDs. Jiggling the input knob will at times cause both channels to operate. This unit is a Yamaha RX-770 that I bought new. Thanks!

It sounds like you know what the problem is. Get it fixed.

Or try this temporary fix.

Or turn it off and manually operate the selector and all controls a thousand times to wipe the apparent oxides from their contacts.

Jul 06, 2011 | Yamaha RX-770

1 Answer

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Electronic Transmission Error Indicator
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Zone 2 connections

go into your amp settings menu then to speaker settings,set zone 2 on and main on, turn up the volume for zone 2 about half way then connect phono cables from zone 2 pre out to a input on the external amp (eg cd input )
never use the phono input this is for turntables,connect this amp to your speaker switch/selector then to speakers.

hope this helps

cable guy.

Jun 04, 2008 | Yamaha RX-V2500 Receiver

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