Hi all,

Have a Technics home theater receiver. Have an intermittent problem
with center channel -- sometimes after turning on receiver will get no
sound from center channel, but it's possible to turn up the volume
until the center channel just comes on. I can then turn down the
volume and the center channel stays on.

Have checked speaker wire connections, even changed out the wire.
After a couple of searches on Google Groups, it sounds like it is a
"speaker protection relay" problem. Does that sound right? Is this
something that can be readily fixed with, say, a can of compressed air?
(There was quite a bit of dust over the ventilation grill...) If so,
are these things relatively easy to find inside the receiver?

Thanks in advance!