Doepfer

hello ernst,
i am not sure, but one of my a111's had a similar
problem with the PW function (PW knob or pwm knob
+input) and the sine, triangle waveforms, and it
turned out to be a broken cem3340 chip.
but, i had again a similar problem with another of my
a111's (i have 8...) and all i had to do is first
insert and then unplug a patchcord in the hard sync
input of the a111. try this, maybe this will fix the
problem. dieter had once told me the reason for
thishard sync issue.. but i cannot remember it now...
just try this patchcord trick with the hard sync( and
softsync) jacks of your a111.
regards,
bakis.





--- achtung_999 <heinrich.himmelwasser@gmail.com>
wrote:

> Hello everyone.
> 
> This week I had a very profitable a100 second hand
> buy.
> Among all the goodies were two A111 VCOs.
> 
> I have connected both and immediately found out they
> were both out of tune with each 
> other and with my a110s. 
> 
> I also noticed on my oscilloscope that the sawtooth
> from these babies is a rising one 
> instead of a falling.. this is normal eh??
> 
> But the most scary thing is that one of the a111s
> has a clear defect.
> If I turn the Pulse Width knob above the 5 position
> it starts to influence the pitch and the 
> amplitude of the sine, saw and triangle waveforms!! 
> 
> I have been trying to tune the oscillators but I
> first would like to know the whole story 
> before I continue...
> 
> Thanks,
> 
> Ernst
>  
> 
> 
> 
> 


Bakis Sirros
Parallel Worlds
Athens-Greece
[Doepfer_a100] group owner
http://www.shimarecords.co.uk
http://www.rubber.gr


		
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