restoring a Crumar DP-50
2009-03-25 by pbochu
hi, I've been given last week a broken Crumar DP-50 and I'm currently repairing it. I've repaired the power supply (one fuse, two voltage regulators and a Ta capacitor) -> I got a sound out of it yesterday. Potentiometers have to be changed (horrible noise when I turn them) but the piano seems OK. All keys work and the piano sounds differently when I change preset (Presets 1 to 6, Mode 1 or 2). My problem is that I have no manual (schematics, user or service manual) so I can't really be sure it sounds OK. Does anyone have the correspondance for the 12 presets (possibly on the user manual)? Also, could anyone explain how the free presets work?