Scratchy Volume Knob on Old Sansui Amp
I have a Sansui AU-717 Integrate Amplifier. When I turn the volume knob, one or both of two things happens. Either one of the channels shuts down or I get a crackly output. I have been told that there is something that you can spray on the knob device on the inside of the case. Is this true and, if it is, what is it called and where can i find it?
Skyfyre
Be wary of contact cleaners....
[QUOTE=Resident Loser]...spray contact cleaners, available at electronics parts houses...Radio Shack probably has one...or you could search on-line...
If that doesn't have the desired effect, once you obtain the cleaner, follow the manufacturers instructions carefully. Obviously, you will want to disconnect the unit from it's power source before opening the cabinet.
I own a couple of old Marantz quad receivers and found in this site and other resources one has to be careful with the Radio Shack (and other) commercial contact cleaners--they can negatively impact the plastics--I've read stories of the plastic deteriorating- as well as altering the tuning accuaracy of the receiver. These stories are anecdotal and I have never used these cleaners.
I've used the DeOxit power booster and (if I remember right) their Gold connector exclusively, as per others' suggestions here, and have had good success with them with no negative side affects.