"N_Cook" wrote in message
...
Andrew wrote in message
...
Hello,
I have a JVC RX-6000 which works well except for the volume control,
which behaves pretty oddly. If I turn the volume down slowly,
everything works fine. If I turn the volume down quickly, the volume
often ends up higher than it was. I assume the pot has some problems,
though I cannot imagine what would make it behave like this. So I
have the unit open, and there are no identifying marks on the pot.
Its square, top mounted with a metal bushing 3/8" long. The pot stem
stick out another 3/8" past the bushing. I think its 10k, but I can't
be sure until I pull it out. I have looked all over for this pot,
and I can't find anything. Does anyone know how I can identify the
pot, and where I can find a replacement?

thanks,


How to renovate worn pots, on my tips files, off URL below.


--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/




Are you sure it's a pot, and not a rotary encoder ? Does it have end stops
at anticlock and clock ends ? If it goes round and round without stops, then
it is an encoder, not a pot.

The symptoms you describe are very typical of the 'stirring treacle' grease
that they put in the shaft, having migrated down onto the encoder disc and
contacts. If it is one of these, they are cleanable, but you need to
carefully dismantle it, to do so.

Arfa