Ah, interesting. Reading about this...calibrating the voices doesn't look too difficult. I found these simple instructions after googling a bit. I'll probably give it a shot tomorrow. Is there anything missing from these instructions or anything I should watch out for? Thanks!
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Sure first get the trimpot reference page here:
http://www.oldcrows.net/~oldcrow/synth/korg/polysix/manuals/service/p6smm9.pdfNow normalise your PolySix - fire it in Manual mode and set the octave to 4', waveform to saw, cut off at full, resonance at 0, EG amount at 0, keyboard tracking at 0, ADSR at 0 - 0 - full - 0 respectively, attenuator at 0, VCA ENV shape set to gate, effects off, poly key assign mode, hold mode off and make sure the pitch and modulation wheels are set to centre and zero respectively.
Then fire this up:
http://www.oldcrows.net/~oldcrow/synth/korg/polysix/manuals/service/p6smm12.pdfIf you look at the trimpot diagram you'll see that each voice has its own section of the voice board (KLM-366) and all have the same number of trimpots. You are interested in in VR 10 and 11, both are the bigger trimpots according to the diagram.
Now just to follow the instructions. You'll need a guitar tuner or a test tone to carry this out. Make sure the switch SW1 on the diagram is
pushed up and not down.
1. Play the
TOP note (C6) and
look at the LEDs on the voice board. The LED will show you which voice is sounding and the trimpots near the lit LEDs are the ones you are after.
2. Trim the
VR11 pot with a small flat panel screwdriver to give you a perfect C on your tuner or against your test tone (zero beat!).
3. Repeat this for all other voices - (when you let go and play again the PolySix should move on to the next voice automatically).
4. Now play C2 and adjust
VR1 on the
KLM-396 board (a wee tiny thing, you can't miss it) to give you a perfect C. Do this once only.
5. Set the octave on the front panel to
16' and play
C2. Now adjust
VR10 to give you a perfect C.
6. Repeat this for all other voices.
Congratulate yourself and enjoy your finely tuned PolySix.