I recently picked up a Roland JX3P (digitally controlled analogue) on Ebay and found that some notes played quiet on some patches. I think I've traced this as far as a problem with DCO1 on Voice 6. If the DCO is set to a square wave it seems OK, but if it's set to sawtooth or pulse it doesn't work. If anyone has any suggestions about what this might mean in terms of repairing the electronics it would be very helpful... Thanks, Ben
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Trying to diagnose a dodgy JX3P
2006-05-16 by b_j_glover