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I have a hardly used Yamaha p90. I get very little sound from the speakers esp. the left one. I sprayed the volume switch with de-ox-it? as suggested but now have no sound at all. I took the case and switch out and see no apparant loose wires. Help!

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  • Yamaha Master
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NEVER use de-oxit in a volume control potentiometer !!! Use it ONLY on metal switch contacts.

De-oxit will destroy the lubrication in pots and the resistance element.

You MIGHT try CRC226 which is safe to use. It is available at Home Depot in the electrical dept. Blue can, about $2.75. Make sure it is CRC226 as there are other CRC products there which are not applicable.

The volume control may be damaged now and may need replacement. They are not expensive other than the labor to install it.

Posted on Sep 07, 2010

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