more midi2cv...

[WeAreAs1 at aol.com]

Hello Andrew,

In a message dated 6/1/99 10:13:15 AM, you wrote:

<<Any ideas? Replace the opamp buffers? Power supply? Help...? >>

I don't have a midi2cv schematic, so I don't know the exact circuitry 
involved, but there's probably a 4051 analog mux (or two) in there somewhere 
(right before the output buffer amps).  I would try replacing it with a new 
one.  I have seen the same problem you are describing (different analog 
channels interfering with/beeding into others) in other units that turned out 
to be caused by bad 4051's.  If that doesn't fix it, try replacing the output 
buffer opamps (it has LM324 quad amps, right?).

Good luck, 
Michael Bacich