Question about Yamaha RX-V995 Receiver

2 Answers

When I try to turn up/down the volume from the remote the knob on the reciever does not move. I can hear the motor trying to compute the command of the volume. All other functions work on the receiver

All other functions work on the remote and the receiver. I think its something in the receiver that is not letting the volume knob to turn it up.

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2 Answers

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  • Yamaha Master
  • 924 Answers

If this is a rotary encoder, when you normally turn it by hand to the left or right, it will feel like it moves slightly, but never fully rotates. This is not a potentiometer like the old days. It is an input to the display microprocessor IC(computer within your receiver) If the volume works normally from turning the knob by hand, the rotary encoder is fine. When you use the remote via infrared, there is an Infrared receiver in the receiver to pick up those signals and convey them to the display microprocessor. If all the other remote commands work OK, you can have two issues. One, the remote, for the volume is bad(the computer within the remote) or the display microprocessor IC itself, is bad. If you need more assistance, or would like to inquire about a repair, please visit my website at audioserviceclinic.com. You can contact me there. Thank you.

Posted on Dec 01, 2014

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  • Master
  • 757 Answers

Remove the volume knob by pulling it straight out off of it's shaft. Use a dry cloth to clean off any visible crud and dust. Spray silicone lightly; the shaft and the shaft washer. Replace knob by aligning it by it's shape and work the silicone into the volume mechanism by twisting the knob a few time. Now try it with the remote.

Posted on May 10, 2014

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Posted on Jan 02, 2017

  • 236 Answers

SOURCE: volume knob quirks

if you know how to repair, then replace the volume control switch. it is a digital type/mechanical type of switch with silicone oil on it to prevent sudden turn of volume. if i were the repairman i can simply clean the contacts of the volume control and pour silicon oil again. but i really dont know in your area if they try to clean those.

Posted on May 03, 2008

  • 31 Answers

SOURCE: Volume control on unit

Kent, Unfortunately, it sounds as if the encoder is broken. The encoder is a digital input which takes the place of a traditional volume control, and is what holds the volume knob in place and spins. Since it works fine with the remote, that means everything else is ok, but you will have to replace, or have a tech replace, the encoder itself.

Posted on Sep 16, 2008

drumbanger
  • 1199 Answers

SOURCE: Yamaha RX-V800 volume knob on receiver not working.

It sounds like the volume control pod has gone bad and needs replaced (The knob shaft connects to the pod main body and the inside of the volume pod is what controls the rate of volume,If the inside becomes worn ,broken or dirty the volume will become erratic) Replace volume pod ! ..You may try cleaning by taking off the volume knob and getting a can of pressure air and blowing the dust out!
Please rate response!!

Posted on Jan 06, 2009

  • 1 Answer

SOURCE: Att uverse remote won't turn on yamaha reciever

Do an automatic search for your code.

  1. Turn on the device you wish to program
  2. Point the remote control at the device
  3. Press and hold the mode key (i.e. tv, dvd or aux) you want to program
  4. Without releasing the selected mode key, press and hold the OK key simultaneously
  5. Release both the mode key and the OK key -All the modes keys will flash twice indicating programming mode
  6. Enter 922 by pressing the number keys on the remote control -The selected mode key will flash twice indicating correct entry (for anything other than AUX go to step 7, for the AUX mode searching only, press and release the play key then press 1 for VCR 2 for Receiver/Tuner 3 for Amplifier or 4 for Home Theater In The Box (HTIB) - The AUX mode keys will flash twice indicating correct entry)
  7. Press and release the PLAY key, every time you do this, autoserach will try a different code, continue to do this until your device turns off. (if you weren't paying attention and you miss it, the REW key can be used to go back through the codes one at a time, and the ff key can be utilized to move forward through the codes one at a time.)
  8. To save the code press the ENTER key (below the number 9) then press the exit to return to normal operations. (the selected mode key should flash three times
  9. Turn you device on by selecting the appropriate mode and power.

Posted on Feb 02, 2009

smarthome2
  • 1114 Answers

SOURCE: Yamaha RX-V2500 completely shut down

Sounds like the volume control on zone 2 is your culpret. You should set up zone 2 to have a "fixed" output instead of "variable" it's in zone 2/3 setup. whats happening is you are overloading the volume control from the zone volume on the receiver and getting feedback to the receiver and shorting it out. What you do is put zone 2 to fixed output. set the vol control to 3/4 then adjust the vol to relatively loud and exit out of settings. this will be your max volume setting. Now, on to your problem.Unplug the receiver. There is an internal fuse that could have blown, not to likely but it's possible. You have to take the top off the receiver with a #1 phillips or a T10 torx they vary. It's about 7 screws, pop off the top and look from front to back, you will see 1 or 2 fuses near the AC plug port. Sometimes they are gray or white and you cannot visibly tell if it's bad. If you have a multimeter, set it tone resistance. Then put your leads on either side of the fuse, if you hear tone the fuse is ok. If not check your leads by touching them together and you will hear tone then test again. If you don't have tone, your fuse is bad. Radio Shack should stock the fuse you need. If you don't already know this, there are 2 Power switches for your unit. Front of receiver bottom left corner "Master Power" and normal Power switch "Main Power" check them both. If your fuses are good and power is good, you have bad transistors internally and it needs to go to service. check www.yamahausa.com support and service, and you can find the closest authorized service center to send it to. If you mail it out directly to the service center rather than taking it to a dealer, you will save some money and get it back faster. Lastly, pull your zone 2 volume control and look for black marks on it or white chalky substance. "oxidation". If you don't mind spending a little money on the system, hardwire the speakers thru and replace the volume control with an IR receiver. If you could control the zone from the zone by pointing the remote at the volume control you had an IR vol control. You really didn't need the vol part. Xantech or Proficient make good IR receivers that aren't too expensive and will keep this from happening again. If you need any more help, I am a Yamaha Dealer, let me know where your located and I can send you to a good service center. Just post a comment and I'll get you the info you need. Hope this helps

Posted on Jun 06, 2009

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I'd love to have more information to go on, but I can give you a few things to check:
If there is a traditional volume control that is motorized, you will see the volume knob start moving on its own after you start it up. If that is the case, you'll need to have someone look at the motor control circuit. Luckily these are almost so generic that parts would be as common as replacing fuses.
If there is a volume knob that is an encoder, it may be faulty. How to tell if it is an encoder? Easy. If it will spin continuously with no extra effort, in both directions, it is an encoder. If in fact there is an encoder present underneath the knob, and the amp is responding to the remote correctly, it may be as simple as someone replacing the encoder.
If there is no volume knob at all, just a couple buttons to press, one for up, one for down, there are issues in that circuit that will need to be addressed.
If the volume control is only from the remote, and it keeps climbing on its own until you turn it down, there is a digital volume control chip that controls the volume. Unfortunately, anything in the circuit from that chip itself, all the way back to the sensor for the remote, could be faulty.
HOWEVER, do not despair yet, there may be another area to check. Turn the amp on, then IMMEDIATELY take the batteries out of the remote. If the volume stops climbing right there and then, guess what? :) Time for a new remote, or have someone take a look at the one you have if it is an expensive unit. One more related thing to check: If there are any other remotes in the room, remove them, or any other possible sources of infrared light. Alternately, take a piece of heavy black electrical tape and cover the sensor for the remote, and turn the amp on. If it behaves normally, something else in the room is "telling" the amp to increase volume. If any of these tests produce results no different from what you've experienced so far, the fault is in fact inside the amp.

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Guys, I might have accidentally found the problem because the fix worked for me :). I have the RX-V995 and for the last 2+years or so, I had resorted to getting up and using the knob manually for volume control. System will show 'voluem up/down' in the display, but the knob didn't rotate. Same problem as yours.

I was getting ready to buy the service manual, find the knob motor which I thought was the main culprict and replace with a new one.

So I took out the top cover (just a few screws), the front face-plate (again just a few screws. The inner details were all visible. The volume knob circuit board was vertically placed. They were all covered in a good layer of dust. I got my Dyson vacuum cleaner and gently and carefully tried to **** up all the dust that had settled down. With soft front brushes, I agitated the dust I couldn't reach with dyson wand direclty, once dust were loose, dyson did a great job even with picking up those last dust pieces.

I couldn't succeed in taking apart the volume knob circuit board, as I was still awaiting for the service manual. I put all the covers back on and guess what? I used my remote and the knob was moving again. Responding very well, the knob made the full turn, when I was on the remote. It has been working perfectly for the last few days now.

I think I know what was happening. Teh top of the RX-V (and I am sure many Yamaha receivers) are very porous to allow for good heat dissipation. Over time, this allows a large amount of dust to collect on top of the parts. Most parts are electronic (not mechanical) and hence don't get affected by the dust. But the few mechanical parts might have adverse affect if dust settles down in between the rotating mechanisms.
My volume knob had stopped responding to remote command, very slowly. Initially it worked a little, missed a little, then it missed a lot and eventually it didn't rotate. That proves the theory to some extent that if the motor had completely failed, it would stop working from the get-go, not intermittently. Dust build-up provided intermittent contact between the parts and hence the response was intermittent.

The dyson vacuum did a great job in pulling out those fine dust from such parts and amazingly, things are looking very good at present. Honestly, I hadn't the slightest hope that vacuuming would fix the problem. I had vacuumed to make it easy for me to work on the parts :).

So, it doesn't hurt at all to just give it a try. Do open the covers so that you can reach closer to the real boards and parts.

Good luck and let us know!!!
cheers
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If the standby/protection indicator on the amplifier blinks when you specifically press the volume +/- key, it obviously indicates that the unit is receiving the remote's command.
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If none of the above applies, the unit needs to be opened and troubleshooted. I've seen many instances where the volume control motor was not properly connected to the board or the assembly was put back incorrectly (specially in units that have been opened to be refurbished). I've heard NAD has a limited warranty for refurbished items. It might be wise for you to check before sending the unit for repair at your expense or trying to tackle the problem yourself. Hope this helps.

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I

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