Question about Marshall Amplification Marshall MG15CD 2-Channel 15-Watt Guitar Amp
Dirty contacts inside the potentiometers (variable resistor knobs) cause this.
The cheap quick way to help this is to work the pots back and fourth a bunch of times, this will scrape away some of the oxidation and dust on the contacts.
The mid term way to fix this is to use a electrical contact cleaner like Deoxit. This must be able to get inside the pots so some disassembly of the device may be necessary to get to the back of the pots and spray or pour the cleaner into the pots and then work them back and fourth.
A long term way to fix is to actually desolder and replace the pots with new ones of the same size, value and taper.
Posted on Mar 05, 2015
Stop by Guitar Center and they carry spray product(s) made for cleaning "pots" IE: Blue magic, etc...
Posted on Apr 06, 2011
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Posted on Jan 02, 2017
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