Doepfer

Hi,

  can anyone explain how to calibrate the 156 Quantizer in English? 
My modules have been in the shop since before Christmas but they can't
understand the German instructions.  

  I need to know how to make it track accurately, but also how to step
at the right voltage as they are both currently out.

Yours Aye

Stuadh

Is there any way this planned module could be used to make quick connections between cases for live use?

It looks like if there were a jumper to turn off power on the cable two of these modules could be linked allowing easy set up of patches that span suitcases or monster cases with a simple one cable connection for live use.

Is that a possibility?

Ross Stapf

www.myspace.com/churchovtheapocalypse
www.myspace.com/bloodov


[Non-text portions of this message have been removed]

> Is there any way this planned module could be used to make quick
> connections between cases for live use?
>
> It looks like if there were a jumper to turn off power on the
> cable two of these modules could be linked allowing easy set up
> of patches that span suitcases or monster cases with a simple one
> cable connection for live use.
>
> Is that a possibility?
>
> Ross Stapf

The A-100CGK is already equipped with a 9 pin connector that can be used to
connect the A-100CGK with the planned adapter module so that a standard 9
pin sub-D cable can be used to connect power supply, Gate, CV1, CV2 and CV3
between A-100CGK and the adapter module. There are two jumpers on the
adapter board to connect Gate and CV1 to the corresponding lines of the
A-100 bus if desired. Details can be found on the A-100CGK info page on our
website. But so far nobody asked for the adapter module. This is why it's
not yet in production so far.

Best wishes
Dieter Doepfer

> Hi,
>
>   can anyone explain how to calibrate the 156 Quantizer in English?
> My modules have been in the shop since before Christmas but they can't
> understand the German instructions.
>
>   I need to know how to make it track accurately, but also how to step
> at the right voltage as they are both currently out.
>
> Yours Aye
>
> Stuadh

Short form:

The scale of the CV outputs is adjusted by P4 (one potentiometer for both
outputs). E.g. an A-176 can be used to generate a manually controlled CV
input voltage for the A-156. When the corresponding CV input voltage is
increased the CV out has to change according to the setting of the
quantization switches. The easiest is to use the quint setting and then
check the octave intervals which have to be exactly 1.00V.

The scale inputs are adjusted P1 (CV In 1), P2 (CV In 2) and P3 (Transpose
CV In). E.g. an A-176 can be used to generate the corresponding CV input
voltage. The voltage output of the A-176 can be set to a multiple of 1.00V
(e.g. 4.00V or 5.00V) and the voltage has to be measured simultaneously e.g.
by a digital multimeter. P1 (or P2 or P3) has to be adjusted so that the
corresponding CV output reads the same voltage as the input (i.e. 4.00V or
5.00V). The finest quantization (semitone) has to be used for this
adjustment. Otherwise the steps are too coarse for this adjustment.

Best wishes
Dieter Doepfer

dieter, i've just received an a156 which needs calibrating. putting 1v
into it (from an a155) produces less than an octave. adjusting P4
downwards has the expected effect of reducing the interval between 0v
and 1v, but turning P4 clockwise seems to level out at a little under
11 semitones and won't reach the octave despite further (careful)
turning. any ideas?

seems to be a good week for tuning problems :)

stu

have these become available yet?


A-137-2 Wave Multiplier II


A-189-1 Voltage Controlled
Bit Modifier


:)



[Non-text portions of this message have been removed]

> dieter, i've just received an a156 which needs calibrating. putting 1v
> into it (from an a155) produces less than an octave. adjusting P4
> downwards has the expected effect of reducing the interval between 0v
> and 1v, but turning P4 clockwise seems to level out at a little under
> 11 semitones and won't reach the octave despite further (careful)
> turning. any ideas?
>
> seems to be a good week for tuning problems :)
>
> stu

Please refer to my message vom June 18th. First of all P4 has to be adjusted
for exact 1.00V jumps of the outputs independent of the exact input voltages
(e.g. with an A-176 as continuous CV source). Not until the output scale is
adjusted the input scales have to be adjusted (P1, P2) so that an 1V jump at
the corresponding input generates the 1V changes at the outputs.

Best wishes
Dieter Doepfer

> have these become available yet?
>
>
> A-137-2 Wave Multiplier II
>
>
> A-189-1 Voltage Controlled
> Bit Modifier
>
>
> :)

The A-189-1 Bit Modifier is in production and will be available early in
July.

The A-137-2 has been totally re-designed (incl. offset controls for each
stage and internally prepared single outputs for saw and rectangle
waveforms). We are waiting for the new prototype boards. If there are
sufficient inquiries we may offer an breakout module (nothing but 8 sockets
connected to the internal 4 sawtooth and rectangle outputs) to have access
to the single outputs. The new version of the A-137-2 will be available
about late summer/fall 2008. The revised version of the A-137-2 (new fronbt
panel) will be published within the next few days on our website.

Best wishes
Dieter Doepfer

Dear Dieter,

  I now have the Quantizers back from the shop, but they are still
out.  Both scales (All) track accurately (using a MIDI Keyboard and
Kenton Pro 2000 as the CV source) but the CV outs change at the wrong
points when in chord or quint.  For example, on one, the major chord
flips on the root, the third and the sixth (not the fifth).  Also, the
output of one quantizer is almost one semitone below the other (all
other things in the signal path being the same).

  To this end, I need to try myself.  Based on the Version 1 board and
with respect to your instructions, below, can you explain where P1,
P2, P3 and P4 are, please.

Next to the TL062CN chip = P
The small Pot next to IC6 = P
The pot (of the pair) closest to the CV and Trig out Sockets = P
The pot (of the pair) closest to TS274CN chip = P

Many thanks,

Stuadh




> >
> > Yours Aye
> >
> > Stuadh
> 
> Short form:
> 
> The scale of the CV outputs is adjusted by P4 (one potentiometer for
both
> outputs). E.g. an A-176 can be used to generate a manually controlled CV
> input voltage for the A-156. When the corresponding CV input voltage is
> increased the CV out has to change according to the setting of the
> quantization switches. The easiest is to use the quint setting and then
> check the octave intervals which have to be exactly 1.00V.
> 
> The scale inputs are adjusted P1 (CV In 1), P2 (CV In 2) and P3
(Transpose
> CV In). E.g. an A-176 can be used to generate the corresponding CV input
> voltage. The voltage output of the A-176 can be set to a multiple of
1.00V
> (e.g. 4.00V or 5.00V) and the voltage has to be measured
simultaneously e.g.
> by a digital multimeter. P1 (or P2 or P3) has to be adjusted so that the
> corresponding CV output reads the same voltage as the input (i.e.
4.00V or

> 5.00V). The finest quantization (semitone) has to be used for this
> adjustment. Otherwise the steps are too coarse for this adjustment.
> 
> Best wishes
> Dieter Doepfer
>

Stuadh,

I'll send the adjustment procedure to your email address as pdf attachment.
It seems that P4 has to be readjusted.

Best wishes
Dieter Doepfer

> -----Ursprüngliche Nachricht-----
> Von: Doepfer_a100@yahoogroups.com
> [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von stuadh
> Gesendet: Dienstag, 15. Juli 2008 22:10
> An: Doepfer_a100@yahoogroups.com
> Betreff: [Doepfer_a100] Re: Quantizer Calibration
>
>
> Dear Dieter,
>
>   I now have the Quantizers back from the shop, but they are still
> out.  Both scales (All) track accurately (using a MIDI Keyboard and
> Kenton Pro 2000 as the CV source) but the CV outs change at the wrong
> points when in chord or quint.  For example, on one, the major chord
> flips on the root, the third and the sixth (not the fifth).  Also, the
> output of one quantizer is almost one semitone below the other (all
> other things in the signal path being the same).
>
>   To this end, I need to try myself.  Based on the Version 1 board and
> with respect to your instructions, below, can you explain where P1,
> P2, P3 and P4 are, please.
>
> Next to the TL062CN chip = P
> The small Pot next to IC6 = P
> The pot (of the pair) closest to the CV and Trig out Sockets = P
> The pot (of the pair) closest to TS274CN chip = P
>
> Many thanks,
>
> Stuadh
>
>
>
>
> > >
> > > Yours Aye
> > >
> > > Stuadh
> >
> > Short form:
> >
> > The scale of the CV outputs is adjusted by P4 (one potentiometer for
> both
> > outputs). E.g. an A-176 can be used to generate a manually controlled CV
> > input voltage for the A-156. When the corresponding CV input voltage is
> > increased the CV out has to change according to the setting of the
> > quantization switches. The easiest is to use the quint setting and then
> > check the octave intervals which have to be exactly 1.00V.
> >
> > The scale inputs are adjusted P1 (CV In 1), P2 (CV In 2) and P3
> (Transpose
> > CV In). E.g. an A-176 can be used to generate the corresponding CV input
> > voltage. The voltage output of the A-176 can be set to a multiple of
> 1.00V
> > (e.g. 4.00V or 5.00V) and the voltage has to be measured
> simultaneously e.g.
> > by a digital multimeter. P1 (or P2 or P3) has to be adjusted so that the
> > corresponding CV output reads the same voltage as the input (i.e.
> 4.00V or
> > 5.00V). The finest quantization (semitone) has to be used for this
> > adjustment. Otherwise the steps are too coarse for this adjustment.
> >
> > Best wishes
> > Dieter Doepfer
> >
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>


[Non-text portions of this message have been removed]

--- In Doepfer_a100@yahoogroups.com, "stuadh" <stuadh@...> wrote:
>
> Dear Dieter,
> 
>   I now have the Quantizers back from the shop, but they are still
> out.  Both scales (All) track accurately (using a MIDI Keyboard and
> Kenton Pro 2000 as the CV source) but the CV outs change at the wrong
> points when in chord or quint.  For example, on one, the major chord
> flips on the root, the third and the sixth (not the fifth).  Also, the
> output of one quantizer is almost one semitone below the other (all
> other things in the signal path being the same).
> 
>   To this end, I need to try myself.  Based on the Version 1 board and
> with respect to your instructions, below, can you explain where P1,
> P2, P3 and P4 are, please.
> 
> Next to the TL062CN chip = P
> The small Pot next to IC6 = P
> The pot (of the pair) closest to the CV and Trig out Sockets = P
> The pot (of the pair) closest to TS274CN chip = P
> 
> Many thanks,
> 
> Stuadh
> 
> 
> 
> 
> > >
> > > Yours Aye
> > >
> > > Stuadh
> > 
> > Short form:
> > 
> > The scale of the CV outputs is adjusted by P4 (one potentiometer for
> both
> > outputs). E.g. an A-176 can be used to generate a manually
controlled CV
> > input voltage for the A-156. When the corresponding CV input
voltage is
> > increased the CV out has to change according to the setting of the
> > quantization switches. The easiest is to use the quint setting and
then
> > check the octave intervals which have to be exactly 1.00V.
> > 
> > The scale inputs are adjusted P1 (CV In 1), P2 (CV In 2) and P3
> (Transpose
> > CV In). E.g. an A-176 can be used to generate the corresponding CV
input
> > voltage. The voltage output of the A-176 can be set to a multiple of
> 1.00V
> > (e.g. 4.00V or 5.00V) and the voltage has to be measured
> simultaneously e.g.
> > by a digital multimeter. P1 (or P2 or P3) has to be adjusted so
that the
> > corresponding CV output reads the same voltage as the input (i.e.
> 4.00V or
> > 5.00V). The finest quantization (semitone) has to be used for this
> > adjustment. Otherwise the steps are too coarse for this adjustment.
> > 
> > Best wishes
> > Dieter Doepfer


Dieter,

  I have set up the first Quantizer without difficulty, but working on
the second has shown that the output voltage is unstable (it warbles
almost as mouch as one semi-tone.  I've switched out the TL062CN and
the main processor chip (PIC16F73).  I don't have the other two chips
handy to try changing.  Is this a return to Doepfer case, or is there
something else I can try?  The problem manifests on quantizers 1 and 2
 (on the same module).  

Yours Aye

Stuadh
> >
>

> Dieter,
>
>   I have set up the first Quantizer without difficulty, but working on
> the second has shown that the output voltage is unstable (it warbles
> almost as mouch as one semi-tone.  I've switched out the TL062CN and
> the main processor chip (PIC16F73).  I don't have the other two chips
> handy to try changing.  Is this a return to Doepfer case, or is there
> something else I can try?  The problem manifests on quantizers 1 and 2
>  (on the same module).
>
> Yours Aye
>
> Stuadh

Please measure the voltages directly at the ouputs of the DAC. These are the
pins 11 and 12 of the TLC5620. If these are stable it seems like a problem
with the TLC274. The TLC274 is used only for buffering and amplifying the
DAC outputs. If you have no TLC274 available you may use also a TL064 or
TL084 or LM324. If this does not help add a small ceramic capacitor (~
100pF) to the feedback of each output OpAmp. These are the pins 1/2 (or
across R16) and 7/6 (across R19) of the TLC274.

Best wishes
Dieter Doepfer