Vintage Synth Repair

I couldn't find anything on the web except those that cost a lot so
I'm wondering if anyone could provide some schematics .pdf or .jpg for
my arp omni since I need only the sections for the lower and upper
voicing boards, especially the part for sustaining, if possible with
some description which sections on these boards relate directly to the
keyboard. A complete schematics in .pdf or jpeg format would be great
too. Thanks for helping.

I found this. Hope that helps. It seems to me rather complete 
schematics.

http://people.umass.edu/brownp/arp/techinfo.html

On Saturday 04 February 2006 06:38 pm, maschinengeist001 wrote:
> I found this. Hope that helps. It seems to me rather complete
> schematics.
>
> http://people.umass.edu/brownp/arp/techinfo.html

Nice pages!

I'm loading the schematic for the lower voicing board as I type.  The point of 
interest here is the bit at the lower left corner where it says "short 
release 0V long release -15V" which is tied to the negative side of all those 
22uF capacitors,  all of which are also seeing a zero-to-+15V keying voltage, 
thereby putting 30V across some 25V caps...

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin