Discussion about the Korg PolySix synthesizer

Humm....

i\ufffdve also think about to make a replacement Board but why doing it 1:1? 
I mean, just use the an ATMEL AVR 8515, he has 32 I/o-Lines, two 
internal Tiemers, 8 Kbytes of Flash, 512 Bytes EEPROM and a few 
A/D-Comparators. Must be enough. More problematic (for me) is to find 
out how the outputs to the Oscillator-Boards working (analogue ,yes, but 
in which Voltage Range).

Two AVR\ufffds, a few electronics and that must be enough to replace the old 
Board....

Stef




The Old Crow wrote:

>On Mon, 27 Jan 2003, Tony Allgood wrote:
>
>  
>
>>and sell it piece by piece. Or wait for someone cleverer than me to come
>>up with a modern board replacement for the whole memory board.
>>    
>>
>
>  I have a 50% artworked KLM-367 replacement layout in my PCB CAD, but I 
>stopped to consider a dilemma: make the board a direct clone of the 
>original KLM-367 and use the 8048/8748 CPU and 5514 RAM, or use something 
>like a PIC16F877 and rewrite the patch manager OS in PICcode.  I do not 
>know how much longer 8748s (EPROM version of the 8048, needed to replace a 
>dead 8048-345 mask-ROM CPU from a KLM-367) will be available; already I 
>have to resort to NOS or chip-pulls to get a stock of 8748s or 8749s.
>
>Crow
>/**/
>
>
>To unsubscribe from this group, send an email to:
>PolySix-unsubscribe@egroups.com
>
>PolySix "Digiest" Page: http://www.acc.umu.se/~amber/Poly6 
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ 
>
>
>
>  
>