Korg POLYSIX M Owner's Manual page 21

4) MOUNT THE PS6M MIDI PCB INTO THE POLYSIX
When you have finished all modifications it is time to reassemble your Polysix and mount the heart of your MIDI
retrofit kit: the PS6M MIDI pcb.
(1) Reassemble the control panel (jack panel assembly, KLM-376, KLM-369, KLM-370, KLM-371, power cord), put
the lid in its place and connect all cables.
(2) Mount the wheel panel and connect to KLM-369/CN09.
(3) Mount KLM-366 board. Connect all cables with exception of CN05 (cable to KLM-367, green wires).
(4) Bring KLM-367 board in its position (do not screw it at this stage).
(5) Take the four 3x10mm standoffs and the insulation plate.
(6) Put the standoffs onto the 4 mounting holes of KLM-367.
(7) Lay the insulation plate onto the stand-off. This can be a bit tricky. You can make it easier if you glue the
standoffs to the insulation plate.
(8) Take the PS6M MIDI pcb and plug it onto KLM367/IC22 (Programmer CPU) socket and IC34 (4042) socket. Be
sure to have all pins correctly aligned!
(9) Screw the PS6M MIDI pcb together with KLM-367 be means of supplied 3x35mm screws to the chassis.
(10) Make all connections to KLM-367 first (also the cable to KLM366/CN05), then to MIDI pcb (refer to picture):
• Cable from KLM-366/IC6 (Key Assignor CPU) socket has to be connected to J2. Be sure to fit all pins correctly
into KLM-366/IC6 socket.
• Cable from MIDI jacks has to be connected to J3.
• Cable from KLM-366/R150(unit 0-5) has to be connected to J4.
• Cable coming up from KLM-367 has to be connected to J5.
• Cable from wheel panel has to be connected to J7.
• Cable from Mod Pedal In jack has to be connected to J8.
(11) You may have noticed that there are two trimpots on the MIDI pcb. Normally you would not have to adjust them
as this is done at testing the board before shipping. For reference the functions are given here:
• P1 sets the modulation intensity applied by MOD wheel, MOD pedal, and MIDI modulation.
• P2 sets the white noise source to VCO balance.
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