Vintage Synth Repair

Ah OK, 

where is R53 located? I guess on tandem board 3, not the main board?
I guess there should be an access hole in the rear? 

For me it seems, that the keys come in contact too soon with the force sensor rod, the keys are not fully down, when getting in contact, and therefore I can not really control the pressure. 
It feels like I press the keys down 2 mm, and immediately the force sensor is reacting...
 
Maybe this also could be a mechanical problem, maybe some cup washers missing or something like that. Could that be possible?

best regards, Ambrosia



--- In vintagesynthrepair@yahoogroups.com, Terje Winther <terje.winther@...> wrote:
>
> Hi,
> Sorry for not understanding.
> Yes, there is a force sensivity adjustment, R53 in the schematics. But  
> from your describtion it sems that the effect is either on or off,  
> which could indicate a (partially) failed component in the force  
> sensor circut.
> Although, age have probably done some harm to the force sensor. I  
> remember when my multimoog was new (oh... back a the end of the  
> 1970s!). The force sensor was just smooth and beautifully. Now it is  
> hard and difficult to use, and yes: I too have noticed that is comes  
> on a bit too fast. It seems that even thoug I can adjust mine to suit,  
> the range of the effect is less than it used to be.
> You really need the schematics for this.
> 
> Terje
> 
> 
> Den 31. aug.. 2011 kl. 17.27 skrev ambrosia800:
> 
> > Hello Terje,
> >
> > that´s clear to me... but not what I was looking for.
> >
> > I have to adjust the overall sensitivity of the strap below the  
> > keys. Even if I have the selection knob at let´s say 8:00 o´clock  
> > the effect is far too early because the force strip below the keys  
> > is far too sensitive, or is triggering too early. That means, if I  
> > push the key with normal strength the effect is there immediately,  
> > like the hub of the key is too short.
> >
> > Is there an internal adjustment, or do I have to adjust the force  
> > strap mechanically by lowering it in relation to the keys?
> >
> > Best regards
> >
> > --- In vintagesynthrepair@yahoogroups.com, Terje Winther  
> > <terje.winther@> wrote:
> > >
> > > There is an amount pot on the lower left side of the panel, between
> > > the selection knob and the white slider. Goes from 0 to 10.
> > >
> > > Terje
> > >
> > >
> > > Den 25. aug.. 2011 kl. 00.03 skrev ambrosia800:
> > >
> > > > Where can I adjust the sensitivity of the force sensor?
> > > > It´s doing the job too well at the moment..
> > > >
> > > >
> > > >
> > >
> > > Terje Winther
> > > terje.winther@
> > > http://www.wintherstormer.no/
> > >
> >
> >
> > 
> 
> Terje Winther
> terje.winther@...
> http://www.wintherstormer.no/
>