|
Probably bad y or z sustain board or both. or bad/shorted buffers. Good news, they are cheap on epay. The set will have to opened up and voltages checked. An open fuse on the y or z board usually indicates a bad/shorted board.. Check for vs and va voltages while running. If no voltage is present, remove the power cables on one board at a time and see if the voltage returns indicating a bad board. If no vs or va voltage with both y and z sustain boards unplugged, suspect a power supply.. That should be a good start
|