Vintage Synth Repair

>
> 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/
>

>
> 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/
>

>
> > where is R53 located? I guess on tandem board 3, not the main board?
> >
> Yes, that is correct. I don´t have my multimoog right here, so I don´t  
> know exactly where on the board it is.
> 
> > I guess there should be an access hole in the rear?
> >
> Unfortunately not. There are some of the trimmers not accessible from  
> the rear. You have to open the synth to locate them.
> 
> > 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...
> >
> Hm. Yes, that seems not right.
> 
> > Maybe this also could be a mechanical problem, maybe some cup  
> > washers missing or something like that. Could that be possible?
> >
> Yes, it could be something mechanical, like you mention.
> 
> >
> > 
> 
> Terje Winther
> terje.winther@...
> http://www.wintherstormer.no/
>