Thank you Dieter, I have emailed Matthias.

Richard

On Tue, Oct 20, 2009 at 1:07 AM, < yahoo@... > wrote:
>> My A-190-1 has stopped working. It seems to be sending a constant
>> gate signal and not communicating with midi. Seems to be since I
>> removed the A-140 (the power was off!!!!!)
>>
>> Tried reseting but no dice. Oh and the reset and gate LED's are
>> constantly on
>>
>> Any suggestions
>>
>> Cheers,
>> Richard
>
> Please contact our A-190-1 specialist Matthias Marass
> (keyboards-at-doepfer-dot-de). He is responsible for service and repairs of
> the A-190-1. I'm not very familiar with the A-190-1 (no analog circuits, too
> much digital :-)
>
> I only know that there is one thing that happens now and then to A-190-1. If
> the A-190-1 itself or even one of the other modules on the A-100 bus is
> connected in the wrong way to the bus (vertical displacement) it may happen
> that the +12V and +5V are shortened and the +5V are overwritten by the +12V
> after power on. This will destroy the A-190-1 (or any other module that
> requires +5V) because the +5V circuit is powered with +12V. So you should be
> careful (as usual) when installing or changing modules to the bus board as
> described in the user's manual (pages 4 and 5 in the introduction).
>
> Best wishes
> Dieter Doepfer
>
>
>
> ------------------------------------
>
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>



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"Better to die on our feet, than to live on our knees." - Magneto