[sdiy] Korg Mono/Poly

[The Proteus]

That's my problem... the keyboard scanning board didn't come with the 8049
IC. I've got a lead on the 8749, but I don't know where to acquire the
binary file, or exactly which programmer would be able to take the program
out of the mask ROM. Does anyone have this, and if not, would anyone in
the bay area allow me to borrow their Mono/Poly 8049 so I could zap the
mask ROM out of it?

Regards,

Prot

- - - T h e  U n d e r g r o u n d  W a r e h o u s e - - -
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--<T h e  P r o t e u s>-<Musician>-<Producer>-<Engineer>--

On Fri, 17 May 2002, The Old Crow wrote:

> 
>   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. :-)
> 
>