OBERHEIM SYNTH

Ok - worked on the Beast some this weekend...
According to the services manual, after calibrating, "Turn off test switch 1 (set to the up position)."  So they claim "up" is "off".  

However, I have my switches set as follows(from left to right) (1)Down, (2)Down, (3)Up, (4)Up, (5)Down.

Again, the last three switches determine the number of voices.  I have my set for voices.  If I want 8 voices I set the last switch to the up position.

In an earlier note, I talked about one VCO on voice 5 having a strange +5V auto-tune voltage that was throwing the oscillator to the wrong pitch.  It turns out that this was caused by switch 2 being in the Up position. When I put switch 2 down, the auto-tune seemed to work correctly.  All my voices/OSC have an auto-tune voltage of between about +2.3 and +2.8V now.  

Anyway, my connectors (wires from motherboard to voice trays, voice cards connections to trays) continue to drive me crazy.  Everything works, but the connectors never seem to work 100% and I lose a voice or an OSC or PW or a gate or something constantly... I have to open things up and work the connectors to get good connections.  I have all sorts of jumpers to from the motherboard to try to cure the most chronic problems, but it is getting out of control. 

Has anyone done a "permanent" upgrade to end this connector issue once and for all?  If yes, can you tell me what you did, where you got the parts, and send me pictures? 

Thanks. 





--- In oberheim@yahoogroups.com, "nelsonj_sce" <nelsonj_sce@...> wrote:
>
> 
> I have to take mine out of the rack, open it up and look in side.  As I recall, "Up" is on, but let me double check. 
> --- In oberheim@yahoogroups.com, jim finch <jahg88@> wrote:
> >
> > I have the "5" switch version.Which position is considered "on"?
> >                         Jim
> >
>