Discussion about the Korg PolySix synthesizer

Chris, how much do you sell the new KLM-367A compatible board for 
nowdays?



--- In PolySix@yahoogroups.com, The Old Crow <oldcrow@o...> wrote:
>
> 
>   The 8048 is a factory mask-ROM device.  You ("you" being Korg in 
this 
> case) sent a paper tape roll of the object code to mask into the 
device 
> to Nec (or Intel) and they made a run of 3,000 or more parts for 
you.  
> 3,000 was the usual minimum quantity in those days.  The "-345" in 
the 
> part number is probably the index number kept at the factory for 
which 
> file is masked onto the part.
> 
>   That being said, there does exist the 8748 and 8749 CPUs, which 
are 
> EPROM versions. You can still get unprogrammed ones from places 
like 
> jameco.com.  It has to be programmed, which means you need a device 
> programmer that can program 8748s/8749s.  The binary code file is 
also 
> needed, which I have around here somewhere.  I have made KLM-367, 
> KLM-366 and KLM-380 (Trident) CPUs in this manner.
> 
> Crow
> /**/
> 
> jure zitnik wrote:
> 
> >hello it's me again.
> >
> >well so far it looks like it's quite possible that the main cpu is
> >faulty. the full label is
> >NEC PD8048c-345
> >i have a few questions:
> >
> >does this microprocessor have internal PROM? if so - do we have a
> >binary for it? how would i go about programming it? anyone ever did
> >that?
> >
> >any idea if it could still be available somewhere? any known 
substitute?
> >
> >anyone got any of those spare? from a broken polysix maybe?
> >
> >best regards,
> >jure
> >
> >
> >
> >
> >
> >PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6 
> >Yahoo! Groups Links
> >
> >
> >
> > 
> >
> >
> >  
> >
>