Suddenly my korg M1 stopped producing any sound from all outputs, when triggered by its own keys or by an external keyboard.
Also there is a "low battery" indication that does not go away even when i change the battery with a new one.
Everything else seem to operate ok.
I checked the yahoo group of M1 and I found out that others users had the same problem but unfortunatelly I did not find any solution.
I thought that maybe some electrolytic caps were dead, just like the common korg O1 "no sound" issue, but I have found no evidence of caps leakage.
I checked all cables, checked continuity, used deoxit on connectors, checked for cap leakage, changed the battery but the problem persists.
Has anybody else experienced this issue ?
Any thoughts about what to check , would be appreciated.
I have the service manual if anybody else is interested.
Thanx in advance
