Question about Audio Players & Recorders
After a few minutes or sometimes hours of use later the left channel intermittently goes away, no sound. Turning the volume control up or down brings it back for a while. Will come tuner cleaner help this out?
Posted by Anonymous on
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Posted on Jan 02, 2017
My solution was actually indeed the output protection relay. What I did was to open up the relay and use contact cleaner and a very fine abrasive to clean the contact surfaces of the relay. After that, the problem was gone!
The way to diagnose this for me was to run the amplifier open until the problem recurred and to simply tap the relay's box. The sound came on immediately, and I was convinced.
Posted on Feb 05, 2009
SOURCE: losing the right channel
usually this would indicate a dry joint inside or some other temp related intermittent fault, component problem. Take it to a tech and tell them what happens
Posted on Sep 20, 2009
had exactly the same problem myself, changed the balance, and the selector until Sugden suggested the relay. this did the job, and my amp is sorted. Shouldv'e changed this in the first place. Good as new.
Posted on Oct 23, 2010
My Restek has the same problem.
Change the volume potentiometer. Use an 10KOhm Alps potentiometer and your problem should be solved.
Posted on Jan 04, 2011
One way of proving it ISN'T the amp circuitry is to remove the pre-main jumpers and jack in a source that has its own volume control (or try a CD that starts really low) because this bypasses ALL the amps controls. If it sounds ok (albeit LOUD) I'd suspect oxidized contacts on the controls. Turn it off and vigorously operate all controls a zillion times to wear through it. In mosty cases it's the unused controls that fail because they never get wiped. Maybe a shot of contact cleaner on those you can access.
Posted on Oct 18, 2011
Testimonial: " Thanks Mr Dunn Sorted, after twiddleing volume control up and down a trillion times everything came back to normal, so it was a dirty/corroded pot as i know understand, i bought some Caig DN5 and applied it carefully, problem totally solved. Thankyou P. Furtek."
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