“This is the last of two Korg Polysixes which we have meticulously refurbished over many days. This unit has a new CPU board installed.
The synthesizer has had the following work undertaken:
Keys removed from keyed and individually cleaned, together with the keybed PCB contacts and rubber actuator.
A full PSU recap
New KLM-367A replacement board installed from Synthtronics
All 19 tact switches have been replaced with quality Omron switches.
LED on Manual button has been modded with an amber light together with an amendment to the resistor.
Each knob and switch cap has been through a Retrobrite process (to de-yellow) – it looks stunning.
All potentiometers and switches have been cleaned, lubricated and deoxidised.
Each screw has been removed and deoxidised to give a classy “gun metal” appearance.
Finally, it has fully calibrated and the factory patches re-loaded.”