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Audio with sound off

I have a Pioneer QC-800a preamp when toe volume is off I still get audio.
When I turn the volume up a little one side has sound the other does not.
But when I turn up a little more sound comes through both sides.
Anybody ever hear pf this problem, I thought it was dirty controls but even after
cleaning them still have the same problem.
Does anyone have any thoughts on this problem
128x128myboys2603
myboys2603's avatar
myboys2603 OP
5 posts
 
That was the first thing I tried. The volume control is very clean no resistance turning, glides so easy
erik_squires
16,268 posts
 
It still sounds like a bad pot. :) Not all dirty pots can be cleaned successfully.
jea48
4,486 posts
 
That was the first thing I tried. The volume control is very clean no resistance turning, glides so easy

You can't feel if it's dirty just by rotating it.

Pull the top cover and look to see if you can see the dual gang volume control pots. If not you might have to pull the bottom cover and see if you can see it from the bottom.


jea48
4,486 posts
 

I have a vintage Marantz 6300 TT I was having problems with maintaining a constant speed. The audio forums are full of others having the same problem. I took the TT to a local Dealer that has a great tech. He said the problem was a dirty Pot. I said I read many posts on audio forums where guys cleaned the pot and it did not solve their problem. The tech said sometimes it requires a deep cleaning of the pot. (There is one for 33 and one for 45)

It has been over two years now and the TT still holds a constant speed.

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