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drum machine
I have a yamaha dd55 drum machine where the foot pedal switch jack does not work. The jack I think is just like a 1/4'' mono jack and the foot pedal completes the circuit. I have disassembled and tried shorting out the connentions on circuit board with poor results. The strange thing is that it worked a couple times while i was tripping the foot pedal and shorting out diff. connections close to 1/4'' pedal jack on circuit board. Does anyone have any idea what would cause the switch to trip at seemingly at random. It seems that a blown component would not fix itself. perhaps a short, or a bad connection, not sure what to do next.
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