hey j.g.!
 make sure you have the detune knob turned down to zero, since it
 detunes osc's 2 and 4. i tend to forget it from time to time.
 it is normal that when the effects are on' that it is in tune, since
 it syncs osc's 2,3 and 4 to osc 1 (single mode) or osc 2 to 1 and osc
 4 to 3 (double mode) and therefor it's only osc 1 or osc 1 and 3 that
 matter.
 cheers!
 .michael
 --- In
korg_mono-poly@yahoogroups.com
, "namdoogpdx" <namdoogpdx@...>
 wrote:
 >
 > Hey Y'all,
 > All of a sudden OSC 2 and OSC 4 won't stay in tune. On certain
 > octaves one or the other will stay in tune but if you go up or down
 > they gradually begin to drift. For some reason, keeping the effects on
 > seems to help a bit but I don't want to use X or Frequency mod 100% of
 > the time...totally sucks.
 > I always let my Mono/Poly warm up for 20 minutes at least before
 > I even touch it, and after that OSC 1 and 3 stay perfectly in tune.
 > This is really frustrating, since I've only had this synth for 6
 > months and it worked fine up until just recently. I'm very gentle with
 > my keyboards and don't have problems with any of my other synths. Has
 > anybody out there had this same problem
I know nothing about
 > synthesizer repair so I also need to ask if this is repairable or if I
 > am screwed. Any and all help or advice would be greatly appreciated!
 >
 > Thanks, everyone!
 >
 > -J.G.
 >