hello dieter,

well, i stand corrected :-)
but there is one thing which i don't understand.
if i recall right and i patch a cable from phase comp output
to the vco cv input, the lowpass pot is still functional.
why is that

best wishes

ingo




--- In Doepfer_a100@yahoogroups.com , "Dieter Doepfer" <hardware@d...>
wrote:

> Ingo,
>
> I'm sorry but I have to contradict. Roland Mayer, who is no longer

in the

> company, had the A-196 under his wings. It took a while for me to

find out

> the internal connections and normalling (I had to check the

schematics, the

> front panel layout and the manual). Please find my replies in the

text.

>
> > -----Ursprüngliche Nachricht-----
> > Von: Doepfer_a100@yahoogroups.com
> > [mailto: Doepfer_a100@yahoogroups.com ]Im Auftrag von selfoscillate
> > Gesendet: Mittwoch, 18. Mai 2005 07:55
> > An: Doepfer_a100@yahoogroups.com
> > Betreff: 1 Re: a196 pll patch examples
> >
> >
> >
> > hello tom,
> >
> > the a196 front panel layout is not very clear.
> > the output of the a196 lowpass part is
> > the unfiltered signal, while the ouput
> > of the phase comparator is the filtered one.
>
> No. The socket labelled "Out" in the "Phase Comp." section (below

the "Type"

> switch) is the unfiltered Phase comparator output (connected via a

1k

> protection resistor to PC1, PC2 or PC3 of the phase comparator

according to

> the position of the "Type" switch). The socket labelled "Out" in

the "Low

> Pass" section is the low pass filtered signal of the PC1/PC2/PC3

signal.

> Both sockets are not normalled as they are outputs (in general

outputs are

> not normalled but only inputs).
>
> > this is stated in the manual, but imho the
> > placement of the jacks is not optimal and
> > can lead to some confusion, because the layout
> > of the module and the printing on the panel
> > suggest that it is the other way around.
>
> I think the front panel printing is correct.
>
> May be a small mistake in the user's manual caused the

misunderstanding. The

> lowpass output socket is not shown in the sketch on page 3 of the

manual but

> only the normalled CV input socket of the VCO. I will add lowpass

output

> socket to the sketch of the manual and use the same labels as on

the front

> panel. I hope this will help to solve some misunderstandings.
>
> Best wishes
> Dieter Doepfer