Pooh Bear coughed up:
"Thomas G. Marshall" wrote:

My receiver once in a while will buzz loudly or humm softly. This
happens maybe once every 30 days or so, and I use the thing every
day. It *might* be increasing, but I'm not sure.

Quite likely it is. Once these things start.......


Is this indicative of 1. it dying, or 2. something failing and
causing an impropper ground, or short?

Probably neither. It may simply be a poor connection.


Please advise. This is an 8 year old Kenwood receiver. Nothing
special. Pro Logic is all it's got.

Have you tried thumping it when it misbehaves ?

A good way of discovering if a poor joint is at fault.


Graham


As an update. Thing is still happening, but on your advice (and following
the advice upthread about concerns of the volume knob), when it happened
again I /gently/ tapped the volume knob and all was well again.

Question: I am assuming that the solution is contact cleaner, but why would
this help, and what is wrong?




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