Don't expect to find the old wire-crossing-wire key contacts inside the MIDI keyboard.

Most use conductive "rubber" pads that are pressed onto a plated section of circuit board contacts.

First thing I try is a wee small spray of Deoxit contact cleaner at the base of the pad.

Give it time to soak in, then excercise the key.

This is easier than disassembly of the keybed and all those pads, believe me.

If the first application of Deoxit doesn't work after an overnight sit, try it one more time.

Avoid the urge to saturate the area with Deoxit, this is NOT a case of if a little bit works good then a lot works better. Too much Deoxit here is not a good thing.

Don't use ACETONE! -- Acetone can instantly melt plastics.

Common rubbing alcohol is better than acetone, but in the case where a liquid has gotten spilled into a keyboard, the most common cause of this kind of failure, use of alcohol and lint-free cotton swabs necessitates a total disassembly of the keybed to get down to the circuit board and conductie plastic contacts, which is a real bear and should be avoided by the average user.


--Mac

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