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2011-03-13 by phono 1337
Is there any information on calibration for the A-117, I was given one yesterday but it has been detuned off spec, so i would like to return it to factory settings. regards Paul [Non-text portions of this message have been removed]
2011-03-14 by phono 1337
ok well i got the scope out and used the frequency counter to measure from the resistors around the trim pots and found that i can tune each oscillator between 250-650 hertz. So at this point i just need to know what they should be tuned to. Can anyone help with this please Paul On 13 March 2011 16:54, phono 1337 <phono1337@gmail.com> wrote: > Is there any information on calibration for the A-117, I was given one > yesterday but it has been detuned off spec, so i would like to return it to > factory settings. > > regards > > Paul [Non-text portions of this message have been removed]
2011-03-14 by yahoo@doepfer.de
> -----Ursprungliche Nachricht----- > Von: Doepfer_a100@yahoogroups.com > [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von phono 1337 > Gesendet: Sonntag, 13. Marz 2011 17:55 > An: Doepfer_a100@yahoogroups.com > Betreff: [Doepfer_a100] A-117 calibration > > > Is there any information on calibration for the A-117, I was given one > yesterday but it has been detuned off spec, so i would like to > return it to > factory settings. > > regards > > Paul The two variable oscillators have to be adjusted to about 540 Hz and 800 Hz by means of the two trimming potentiometers. The oscillator signals are availabel on pin 4 and 6 of the CD40106. Best wishes Dieter Doepfer
2011-03-14 by phono 1337
perfect, many thanks Paul On 14 March 2011 09:50, <yahoo@doepfer.de> wrote: > > > > -----Ursprungliche Nachricht----- > > Von: Doepfer_a100@yahoogroups.com > > [mailto:Doepfer_a100@yahoogroups.com]Im Auftrag von phono 1337 > > Gesendet: Sonntag, 13. Marz 2011 17:55 > > An: Doepfer_a100@yahoogroups.com > > Betreff: [Doepfer_a100] A-117 calibration > > > > > > > Is there any information on calibration for the A-117, I was given one > > yesterday but it has been detuned off spec, so i would like to > > return it to > > factory settings. > > > > regards > > > > Paul > > The two variable oscillators have to be adjusted to about 540 Hz and 800 Hz > by means of the two trimming potentiometers. The oscillator signals are > availabel on pin 4 and 6 of the CD40106. > > Best wishes > Dieter Doepfer > > > [Non-text portions of this message have been removed]