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G'day folks,
I've managed to fix an issue with a blown fuse on my Elka Artist 707. The problem was a short on a back side of a mains filter (apparently caused by some dirt). I've already replaced all caps on power supply boards, and resettled all large PCBs, cleaned their contacts.
Now the organ powers on, but there is a constant hum (not loud) and no sound when keys are pressed -- except I can only get some VERY faint sounds (it sounds like a harpsichord) by pressing keys in the right 1/4 side (higher pitch keys) of the lower keyboard, only when the volume pedal is fully impressed and other volume controls are set to maximum.
I'd appreciate some help with troubleshooting. What could be a problem, where to start?
I've managed to fix an issue with a blown fuse on my Elka Artist 707. The problem was a short on a back side of a mains filter (apparently caused by some dirt). I've already replaced all caps on power supply boards, and resettled all large PCBs, cleaned their contacts.
Now the organ powers on, but there is a constant hum (not loud) and no sound when keys are pressed -- except I can only get some VERY faint sounds (it sounds like a harpsichord) by pressing keys in the right 1/4 side (higher pitch keys) of the lower keyboard, only when the volume pedal is fully impressed and other volume controls are set to maximum.
I'd appreciate some help with troubleshooting. What could be a problem, where to start?