Doepfer

I'm baffled at the solution to this problem.

ok, here goes.

I have a total of four A-185-2 Precision CV adders in my Monster case for use primarily as 
range switches for a pair of PlanB Model-15's and Livewire AFG's.

The AFGs reside on the lower left bus board while the Plan B's reside on the bus board 
directly on top.

When i plug the A-185-2's into the bottom busboard their negative positions only work 
with one switch (and of the 4, but only producing 1 octave down, not 2,3 or 4) the positive 
positions push the range up as is should with no problems. The A-185-2's on the bus 
board above that work just fine. When i swap the top units with the bottom units the same 
problem persists. so its not the two new A-185-2 units. Both +12 and -12 LEDs are 
brightly lit on both bus boards. i even took out the AFG modules to see if it was a MA 
overloading issue and the problem was the same.

I made sure all of the connections from the power supply to the bus board were not loose.

ummm, any help? :(

-bobby

Never mind.

In my infinite wisdom I remembered to RTFM.

Seems I wasn't as daft the first time around and took off the jumpers on my first pair of 
A-185-2 units. Not so smart this time.

Jumpers removed. Units working properly now. 

Sorry for the waste of bandwidth!

-bobby

--- In Doepfer_a100@yahoogroups.com, "noiseoutsourced" <mailinglist@...> wrote:
>
> I'm baffled at the solution to this problem.
> 
> ok, here goes.
> 
> I have a total of four A-185-2 Precision CV adders in my Monster case for use primarily 
as 
> range switches for a pair of PlanB Model-15's and Livewire AFG's.
> 
> The AFGs reside on the lower left bus board while the Plan B's reside on the bus board 
> directly on top.
> 
> When i plug the A-185-2's into the bottom busboard their negative positions only work 
> with one switch (and of the 4, but only producing 1 octave down, not 2,3 or 4) the 
positive 
> positions push the range up as is should with no problems. The A-185-2's on the bus 
> board above that work just fine. When i swap the top units with the bottom units the 
same 
> problem persists. so its not the two new A-185-2 units. Both +12 and -12 LEDs are 
> brightly lit on both bus boards. i even took out the AFG modules to see if it was a MA 
> overloading issue and the problem was the same.
> 
> I made sure all of the connections from the power supply to the bus board were not 
loose.

> 
> ummm, any help? :(
> 
> -bobby
>