[sdiy] Restoring "feel" on pots?
aurastar at cox.net
Wed May 16 01:00:21 CEST 2012
A friend of mine brought me a Mackie 1402-VLZ mixer (Mk 1) to take a look
at. His initial complaint was that the pots and sliders had lost their
"feel". I figured this was just due to age, but I agreed to take a look and
see if there was anything I could do.
Before I even opened it up, the thing reeked of some sort of solvent. When
I asked him about it, he told me that he had some scratchy pots, and he
sprayed a couple of them with cleaner. It apparently solved the
scratchiness, but now the action on the pots is not as smooth as it used to
be - he said they were "loose" and not as smooth as they used to be.
Upon opening it up, it became clear that he sprayed EVERYTHING... every
knob, every slider, and got a lot of overspray all over the boards in the
process. He used something he found at Radio Shack - MG Chemicals Nu-Trol
Control Cleaner, which was apparently recommended by one of the rat shack
Any suggestions on what I may be able to do to restore these pots? I've
never heard of the product he used, but it obviously destroyed the internal
What about the overspray? Alcohol? Or should I just leave it be? It seems
pretty oily, and I'm thinking it might be a good idea to get it off just for
cleanliness reasons. It doesn't seem to be conductive - the mixer works
fine, even with it all over the boards.
If anyone has any tips they would be much appreciated - otherwise, I'm just
going to give it back and tell him he's lucky it still works.
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