[sdiy] Korg Mono/Poly

[The Old Crow]

  The key assigner is an Intel 8049 microcontroller running a program 
fixed in mask-ROM.  Korg has long since (in the USA and Japan) run out of 
spares, but one can still be created: Use an Intel 8749 (EPROM version of
the 8049) and program it with the binary file that represents the original 
mask ROM.  I've done this to replace a couple dead MCUs.

  Note: this particular Korg/8049 key assigner is used in both the 
mono/poly and the polysix.

Crow
/**/

> -----Original Message-----
> From: The Proteus [mailto:proteus at ugwarehouse.org]
> 
> 	I just scored a free Korg Mono/Poly today, but alas the previous
> owner seemed to dump some kind of corrosive liquid inside of it. The
> voice boards are still okay, and most of the wiring harnesses made it
> out alive. The keyboard, however, did sustain damage and the keyboard
> control board felt the caustic wrath of whatever dowsed this case.
> 
> Any tips on finding replacement parts such as the pots, keyboard
> scanner, and such? I just downloaded the service manual and such from
> Moho's site. :-)