Korg M3R Power supply help or schematic.
Posted: Thu Nov 18, 2021 6:33 pm
Hi All,
The world seems to have forgotten the M3R. It looks like there is very little info out there. I am repairing a rack M3R
and there seems to be a problem with the power supply section on the PCB. If anyone has a schematic it would greatly be appreciated. I see there is a +5,+12 and -12 rail but it does not get to the audio out op amps, so no audio.
Any help at all would be great.
Thanks
PS: the M3 is not the same at all.
The world seems to have forgotten the M3R. It looks like there is very little info out there. I am repairing a rack M3R
and there seems to be a problem with the power supply section on the PCB. If anyone has a schematic it would greatly be appreciated. I see there is a +5,+12 and -12 rail but it does not get to the audio out op amps, so no audio.
Any help at all would be great.
Thanks
PS: the M3 is not the same at all.
