[sdiy] Serious about cloning Korg VC-10 Vocoder: unreadable part of schematic foiling plans

[anthony]

Hello all,

A while ago a nice member of our group directed me to a place where I could 
download the repair manual for the Korg VC-10 Vocoder when I expressed 
frustration in not being able to find a schematic for one. I've looked at 
several vocoders and this is the one I want to make (first). It's simple, 
elegant and capable of some way cool sounds. One of my favorite bands, Air 
(Tangerine Dream & Kalus Schulze) has used it, although I suspect that they 
(Air) have used one or more other vocoder on their albums. Like I think they 
got a new vocoder for Talkie Walkie unless they just came up with some new 
settings they hadn't thought of before. But I digress...

The schematic is easy to follow except for a badly scanned (or a bad 
photocopy, well-scanned) section in the upper, right-hand quadrant of the 
KLM-135 board: the top of page 7 in the service manual.

The values of many parts are hard to read and some lines appear to vanish 
and reappear. I can probably extrapolate what the parts shouldbe based on 
the way other parts of the circuit are designed, but maybe not.

If anyone has a good, readable copy of just this one page, I'd greatly 
appreciate if they wold share it.

When I begin my task of building this little beasty, I'll keep a running 
photogallery of my progress, with sound samples too. I'll also share any 
mods I make, which is very likely. The analog VU-meter is staying for sure 
though...

thanx,
Anthony