Doepfer

It works.

Thanks for the help.

Regards
Michael


On 25/08/2008, at 6:03 PM, <yahoo@doepfer.de> <yahoo@doepfer.de> wrote:

> Michael,
>
> with these settings there should be an output signal available:
>
> audio input = VCO output (e.g. A-110 sawtooth)
> Delay Clock: ~ 7
> Level: ~ 5..7
> Feedback: ~ 5
> Mix: fully CW
> BBD polarity switches: + or - (not center)
>
> If under these settings no signal appears at the output the module  
> has to be
> repaired. For the test no external CV is necessary.
>
> In addition you may test the switching contact of the ext. Clk In  
> socket:
> Connect the Clk out socket to the ext. Clk In
>
> Best wishes
> Dieter Doepfer
>
> > -----Ursprüngliche Nachricht-----
> > Von: Doepfer_a100@yahoogroups.com
> > [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von selfoscillate
> > Gesendet: Sonntag, 17. August 2008 22:06
> > An: Doepfer_a100@yahoogroups.com
> > Betreff: [Doepfer_a100] Re: A-188-1 BBD 4096 problem (probably  
> just me)
> >
> >
> >
> > sadly i don't own the service manual for the a188/1 yet,
> > so i cannot give you an advice how to do specific tests.
> > to be honest, i think you have to send the module in for
> > repair, as i have no idea what could be the problem.
> >
> > dieter is on holidays right now, so we cannot ask him
> > until end of next week, maybe he as a better idea than me.
> >
> > sorry and best wishes
> >
> > ingo
> >
> >
> >
> > --- In Doepfer_a100@yahoogroups.com, "Chidra_100@..."  
> <ChidrA_100@...>
> > wrote:
> > >
> > > Ok chips are secure in their sockets. (3005)
> > >
> > > Feeding any signal into the audio in has mic output.
> > >
> > > Although, mix to bbd out 100% and the bbd switch at middle, has  
> signal
> > > out, polarity - or + at full ddb mix has no output.
> > >
> > > Note CV2 in is triangle output of A-145
> > >
> > > Delay clock makes no sound or jitter. from any polarity settings  
> on
> > > bbd, mix or either.
> > >
> > > It was working 5 min before i sent the email yesterday, it seems  
> as
> > > though something has failed internally, maybe ic ?
> > >
> > > I only has the A-145 input on cv, it just stopped...
> > >
> > > If there is any specific way to test the ic chips and board, let  
> me
> > > know and i will have a go.
> > > Replacements??
> > >
> > > :(
> > >
> > > Regards
> > >
> > > Michael
> > >
> > >
> > >
> > >
> > >
> > > On 16/08/2008, at 8:19 PM, selfoscillate wrote:
> > >
> > > >
> > > > hello,
> > > >
> > > > it is difficult to say what is wrong with your module.
> > > > please do some checks on your module, maybe we can
> > > > figure it out.
> > > >
> > > > do you hear the input signal at the mix output?
> > > >
> > > > when turning the clock all the way down in frequency,
> > > > do you hear the clock noise at the bbd output?
> > > >
> > > > when turning the feedback to maximum, can you hear
> > > > any self oscillation at the bbd output?
> > > >
> > > > can you hear any bbd signal at the mix output?
> > > >
> > > > is the bbd chip (mn3005 or mn3205)
> > > > sitting nicely in his socket?
> > > >
> > > > best wishes and good luck :-)
> > > >
> > > > ingo
> > > >
> > > > --- In Doepfer_a100@yahoogroups.com, "Chidra_100@" <ChidrA_100@>
> > > > wrote:
> > > > >
> > > > >
> > > > > I suspect that my bbd is damaged, is there a sure way to  
> check if it
> > > > > it working properly?
> > > > >
> > > > > I was having a go at the standard flanger patch from the bbd  
> manual
> > > > > (page 12) and after playing around with the variables, it  
> seems to
> > > > not
> > > > > giving a bbd output...
> > > > >
> > > > > Now repatching it doesn't seem to affect the sound at all...??
> > > > >
> > > > > Any advise would be great since i cannot fault find too well  
> as i
> > > > was
> > > > > only just figuring out how the module works.
> > > > >
> > > > > Thanks...
> > > > >
> > > >
> > > >
> > > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
>
>
> 



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