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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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Posted on Jan 02, 2017

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robotek
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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.

regards
Graeme

Posted on Feb 16, 2008

dunnbiker
  • 8546 Answers

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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possible causes
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when the a transmission solenoid is stuck off, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. if the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced.

read more: http://engine-codes.com/p0746.html#ixzz3ptojq4bp

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Depending on what you are connecting to your HDMI inputs, rotating the input selector on the front panel (or one of the input selector buttons on remote), to which you've assigned the component on HDMI 1 or HDMI 2 on the back panel should give you the connection. Make sure you have an HDMI component connected to it, and that you're using its HDMI out connector (eg. output of DVD to input on your Yamaha). Hope this helps.

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How to connect Niles #SSVC-6 Speaker Selector to Yamaha RX-V671


Greg, It pretty basic hookup,Just hook it up to your speaker terminal on the reciever or amp.To the input of the (Speaker) Selector.

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1 Answer

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

It only plays sound in pure direct mode


Check if the Jumper at the back is in place its between the Pre out and the mains. I found this out by accident when I was fixing the Selector, I took all the Screws at the back and also removed the the Jumper.After fixing the selector I put back all the screws with out the jumpers, When I was done i Tested it, it only plays in Direct mode. When I put back the two jumpers it worked again.

Dec 12, 2009 | Yamaha RX-770

3 Answers

3090 input selector cuts in and out


My A3090 was purchased in 1996 and began to having problems with the input selector around 2006. The first symptom was difficulty finding the proper position for a input selected via the remote and bouncing back and forth many times before stopping-- sometimes in the correct position, other times not. Sometimes the selector would stop in between inputs and that would result in intermittent loss of sound, picture, flickering, etc. Once incorrectly positioned between inputs, even manually turning the knob will not fix the problem-- you must use the remote and select an input at one extreme or the other to reset the indexing.
Recently the problem worsened such that I was motivated to remove the cover and have a look. The selector and motor are soldered components on a small circuit board that appears to be dedicated to just that function. No rotary contacts are visible and the mechanical portion does not look like it can be disassembled without first removing it from the circuit board. The assembly is connected via a wire bundle and ribbon cable to two other circuit boards. I suspect the actual signal switching isn't even done inside the selector component-- it just reports the selector position via the ribbon cable to the main processing board. And it wouldn't surprise me if there aren't any contacts inside the selector that can be cleaned.
Seeing the ribbon cables immediately raised a warning flag because decades ago I saw similar cable connections cause many problems in personal computers. Back then they were very prone to corrosion and connection issues at each end. So I removed and reinserted the ribbon cable on both ends in hopes of improving the connections and that seems to have fixed the problems I was seeing. (Please note: This was done with the receiver power cord unplugged and *very* careful avoidance of any other components inside the receiver-- like the bank of capacitors adjacent to the input selector. I'm not a technician and don't know if any of them still held a charge. This is just an account of what I did and the results I saw, it's not a recommendation.)

Sep 04, 2009 | Yamaha DSP-A3090 7-Channel Amplifier

1 Answer

Is there a problem with my engine


E = error. Have dealer run scan test for fault codes.

Electronic Transmission Error Indicator
The vehicle is equipped with a redundant electronic gearshift indicator. This character appears with the key in the RUN position and displays the same gear selection as shown on the selector lever floor console next to the range selector lever. If an "E" character flashes or remains on this indicates that a transmission malfunction has occurred.
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Visual Inspection Chart Mechanical Electrical
  • Shift lock actuator
  • Transmission control switch
  • SST (+/-) switches
  • Shift cable and bracket
  • Park sense switch
  • Central junction box (CJB) Fuse:
    • 204 (5A)
    • 205 (5A)
  • Damaged wiring harness
  • Loose or corroded connections
  • Powertrain control module (PCM)


Diagnostic Trouble Code Chart Five Digit DTC Component Description Condition Symptom Action P0815 SST +/- SST +/- circuit input signal failed. PCM has detected an incorrect voltage SST input. May not be able to shift in manual mode. Go To Pinpoint Test C . P1780 TCS TCS input incorrect per selected position. TCS voltage incorrect. No overdrive cancel when range selector is moved. Go To Pinpoint Test A .

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2 Answers

The Sony TA-FB930R amp I have is giving a intermitten clicking, any idea what causes this


TA-FB930R. Unplug the power chord; all other wires can remain attached. Remove the top cover. Get some compressed air (aerosol, pump or compressor). Pull off the volume button and remove the little circuit board behind it (Beware of short circuit, even with power off!). This gives you enough room to blow compressed air behind the front circuit board to clean the selector (the culprit). While at it, clean the entire amp with compressed air.
First of: All electrical circuits collect dust > dust collects moisture > moisture vaporizes, making the problem go away temporarily after 10 minutes.... The second biggest culprits in general are: Oxidized connectors (use special spray and move them a little.). Loose components (circular crack around component leads, caused by heating and cooling of the circuit boards; solder them again). Worn or dirty potentiometers (tone/volume controls etc.). Clean, spray or replace. And third; check for burn spots and moist pointing at fried or leaky components. 9/10 you won't need a manual to fix electronics.

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1 Answer

Yamaha rx770 stereo receiver


I have the same receiver with the same problem. I fixed it by using a cleaning spray on the inside of the input switch. Deoxit 5 is the cleaner and it took care of the problem.

Jun 14, 2008 | Yamaha RX-770

1 Answer

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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