I have a preamp with a toggle switch for changing phase. Sometimes I lose the left channel on switching. Is this something that can be cleaned at home, simply and safely? Or can this be worn out?Thanks. Pete
after the canned air, try operating the switch several times in succession if that does not work try contact cleaner and then do the same. if that doesn't work, take it to a tech.
If there is corrosion, maybe but WD-40 tends to get gummy and attract dust as it ages. Could be a short term fix w long term consequences. Why not use contact cleaner?
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