The input selector dial on my GFP-565 seems to require cleaning. I know that the switches are actually on the middle of the pcb and are controlled by mechanical ribbon triggers like in the attached photo. How do I go about cleaning these? Is it possible?
An externally hosted image should be here but it was not working when we last tested it.
Try spraying Deoxit into the switches. Then work the input selector through all of its selections lots of times. Deoxit is not conductive so you can just wipe up the over spray. I usually wrap a rag around the part I'm spraying to keep the over spray in check.
I put this off for years, switching to the remaining inputs that still worked until they all went bad including the phono. The Caig Calilube aka FaderLube fixed the problem 100%. Basically you turn the preamp on its side, and spray in the little gaps on the metal sides of the switch. I worked the switch back and forth, then wiped the excess. When you turn the switch you can see the actuator inside moving in and out. I considered lubing the ladder part of the switches too as they are bare most likely for the purpose of lubrication but I decided to leave well enough alone.
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