Question about Yamaha RX-V630 Receiver

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It has lost partially the mechanical connection between the volume control knob and the volume control pot.

When I turn the volume control down it seems to"slip" ....the knob turns but the volume does now go down. The volume on the remote works fine. I believe I just have to tighten the mechanical connection at the knob.


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Re: It has lost partially the mechanical connection...

The knob could be "stripped". A drop of a slightly resilient glue should do the trick. Do not use rigid adhesives, as this will prevent future service to this area of your receiver....accordianman

Posted on Oct 31, 2007

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Is the volume control easy to repair and are needed parts available?

If it is a potentiometer that controls the volume and you have some experience and a few tools you will almost certainly be able to find a replacement in one of the many constructor catalogues and be able to change it.

Modern electronics tend to just use buttons to turn the volume up or down and those have been with us for longer than we realise. In the early days of this technology the manufacturers wanted to use buttons but the buyers still wanted a nice big volume knob so there was a compromise where behind the big knob is a mechanism that presses buttons as it is turned.

I suggest you take the amp apart and take a look at which method is used. I have managed several years ago to repair such a mechanism by making a replacement pert from a piece of junk plastic.

Jan 03, 2016 | Audio & Video Receivers

2 Answers

Mackie 450, signal light off, Sound only comes out when amp. turned up above 75%, when usually used at 40-50%. too loud at 75% and UP, does not Work at ALL below 75%. only 2 years old, with 25 uses... i...

Doesn't sound like a fuse. They don't fix themselves when you reach 75%.

Try shaking the volume knob while in the 30-50% range and/or try (with the power off) rotating the volume knob numerous times from 0% to 100%. If when you plug it back in it responds ANY differently, you might have a bad volume potentiometer. If when you shake the knob you hear static or intermittent sound, you have a bad volume pot.

The only other thing I can think of is that the wiper of the volume pot is not in contact with the windings inside the pot until you reach the 75% mark. When the volume comes on at 75%, does it start off kind of "static" then come in loud and clear? Also try this.... adjust the volume pot to 74% (or when the sound just begins to come on). At this point shake the knob. If you hear static, replace the volume pot.

Unplugging it when still on shouldn't cause any damage... in fact it probably hasn't considering it works at 75% plus.

Mar 14, 2008 | Audio & Video Receivers

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Sound cuts off, but if I touch the master volume contorl knob it comes on for a short time. Do I need a new knob, or something else?

Possible that there is fault in the preamp analogue/logic control. When you touch the volume control knob the static from you partially injects the circuit to work and thereby conduct to produce the volume.
The volume controller is an analogue rheostat coupled to a circuit that can be the suspect , it can even be a fault- open circuit- of the controller.
You can remove the top cover after disconnecting the power supply and check behind the volume knob for the circuit. If you are able to test this circuit , it will confirm the case.

Oct 07, 2011 | Teac AG-D9100 Receiver

1 Answer

Volume is stuck on max. The pot does not seem to be the issue. I do not have a remote. Tried to connect other remotes but unable to find a code that will work. Machine is new to me. Bought it for...

Do you have the manual and have you thumbed through it?

Register and download the manual for free at

It always puzzles me when someone fixates on the remote when a unit has front-panel controls. You say "The pot does not seem to be the issue." Does that mean it is ineffective or is it faultless in your estimation?

The HUGE volume knob (#16 on page 8) controls volume (in the main zone), too.

If your complaint involves speakers on Zone 2, the up/down arrows at #22 on page 8 apply.

Feb 26, 2011 | Onkyo TX-SR700 Receiver

1 Answer

Volume Knob does not adjust volume, but remote does.

Check your owners manual for "factory reset" this will reset the main micro-processor. Otherwise the encoder (volume pot) needs cleaning, soldering or replacement. It could also be a cracked circuit board (if it has recently been hit)

Jan 28, 2009 | Yamaha RX-V1000 Receiver

3 Answers


This sounds like a power supply problem. The high voltage for the tubes is not right. Either you are missing an amplification stage because this or one of the coupling caps is faulty. I'd have to see the unit itself to give you any more details.


Jul 22, 2008 | Audio & Video Receivers

2 Answers

Pioneer Stero Receiver model SX-3700- Static noice when adjusting the volume control knob

It sounds like your volume control pot has dust in it.You need to remove your cover from the receiver,spray pure denatured alcohol in the small openings in the back of you volume control dial and turn the knob all the way up and down several times and then blow low compressed air threw the same small openings while rotating your dial.That should fix your problem.Be sure you unplug your receiver before performing this procedure.

Apr 04, 2008 | Audio & Video Receivers

2 Answers

Volume control

Well here goes a spelling problem for me. You need to replace a component called a podentiomiter. It is the actual volume control behind the knob. I have had to replace a few of these, and pioneer seems to to more prone to these problems.

Jan 30, 2008 | KLH KL2400 Tuner

2 Answers

D608 - Volume Problems

I just picked up one at the dump. You have to take apart the front end by unscrewing screws and pulling out ribbon edge connections. It is easier than some components. Then pry off two of the small clamp downs on the front of the volume potentiometer; pry apart about 1/32 of an inch and spray control cleaner for a second and clamp down. repeat on other side.
worked for me.


Aug 18, 2007 | Pioneer VSX-D608 Receiver

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