sickrick wrote in message
news
Hey all,

I have a small (but major) problem with my Philips 7871 receiver. The
treble pot only controls the right channel. The left channel is stuck
on 0 dB: when i turn the pot, there is no change in the sound. The pot
works fine with the right channel and the bass pot works fine with both
channels. I have a feeling I need to buy a multimeter, but its been
many years since I used one and I've completely forgotten how to use it.
I also am looking for a service/repair manual for this, but I can't find
one. I took off the casing and looked around for any visual clues, but
everything looks fine inside. A few questions:

Is there anything else I should look for?

Anyone here have experience repairing this particular piece of
equipment?

If I bought a multimeter, how would I go about troubleshooting this
problem?

How much would it cost to repair this problem if I took it to a tech

Any idea where I could find a service/repair manual?

Please help!!!

Thanks
Rick


A crystal earpiece is about the only piece of test equipment you need for
this sort or repair, in all probability. To check the central pins of the
treble control pot to start with.


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