Doepfer

Ingo,
 
Thanks for that. I'll get on to EMIS (local distributor).
 
Regards
 
 

David Salter 

Tel: +44 20 7542 2402 
Mob: +44 7990562402 
Fax: +44 20 7542 2699 

	-----Original Message-----
	From: selfoscillate [mailto:synaptic_music@yahoo.com] 
	Sent: 11 June 2003 12:02
	To: Doepfer_a100@yahoogroups.com
	Subject: Re: [Doepfer_a100] doepfer's answer about the jumpers/switches issue.
	
	
	
	hello david,
	
	the service manual should contain all available schematics.
	this manual can be ordered just like the rest of the a100.
	
	best wishes
	
	ingo
	
	
	
	
	--- In Doepfer_a100@yahoogroups.com, David Salter <david.salter@r...> 
	wrote:
	> 
	> 
	> Where can I get copies of the schematics?
	> 
	> regards
	> 
	> David Salter
	> 
	> Tel: +44 20 7542 2402
	> Mob: +44 7990562402
	> Fax: +44 20 7542 2699
	> 
	> 
	> -----Original Message-----
	> From: Bakis Sirros [mailto:synth_freak_2000@y...] 
	> Sent: 11 June 2003 10:20
	> To: Doepfer_a100 group
	> Subject: Fwd: AW: [Doepfer_a100] doepfer's answer about the 
	jumpers/switches issue.
	> 
	> 
	> 
	> --- Dieter Doepfer <hardware@d...> wrote:
	> > From: "Dieter Doepfer" <hardware@d...>
	> > To: "Bakis Sirros" <synth_freak_2000@y...>
	> > Subject: AW: [Doepfer_a100] info from doepfer about
	> > the development of the   A107 and the A154.
	> > Date: Wed, 11 Jun 2003 10:59:40 +0200
	> > 
	> > > -----Ursprüngliche Nachricht-----
	> > > Von: dasfonk@w... [mailto:dasfonk@w...]
	> > > Gesendet: Mittwoch, 11. Juni 2003 00:39
	> > > An: Doepfer_a100@yahoogroups.com
	> > > Betreff: Re: [Doepfer_a100] info from doepfer
	> > about the development of
	> > > the A107 and the A154.
	> > >
	> > >
	> > > hi,
	> > >
	> > > I´d rather like to see jumpers, so I can modify
	> > the A-154 and have my
	> > > own special unique custom version ;-)
	> > > Seriously, folks: I don´t see the point why
	> > Doepfer use jumpers so
	> > > often. Adding a switch isn´t that expensive and
	> > the users will
	> > > appreciate this. It makes a huge difference if you
	> > can just hit a rocker
	> > > switch or if you have to unscrew your module from
	> > the case, re-position
	> > > the jumper and mount the module back in the case.
	> > 
	> > It is always a problem to decide which
	> > functions/parameters of a module will
	> > be available as controls at the front panel. For
	> > jumpers it is obviously to
	> > the user that they could be replaced by switches at
	> > the front panel. But
	> > thats not the whole truth. There are a lot of other
	> > "hidden" functions that
	> > could be available as front panel controls too that
	> > have no jumpers on the
	> > pc board. The first modules we designed had no or
	> > only a few jumpers. But
	> > this does not mean that these modules do not contain
	> > "hidden" features. For
	> > newer modules we decided to add jumpers as they are
	> > extras withouts costs
	> > (the few cent will not change the final price) and
	> > enable the user to add
	> > functions that are not available for the standard
	> > module as - from our point
	> > of view - they are not that important. But of course
	> > it is a question of
	> > taste if a certain function makes sense.
	> > 
	> > If you are an electronic engineer and look at the
	> > schematics of a module you
	> > will find a lot of possible functions that could be
	> > added as controls at the
	> > front panel. E.g. you could short circuit or turn
	> > off certain electronic
	> > parts to modify the behaviour of a circuit, replace
	> > fixed resistors by
	> > potentiometers, add inputs and outputs and many
	> > more. But you have to find
	> > out which control element is worth to be available
	> > at the front panel.
	> > 
	> > E.g. for nearly each filter it would be possible to
	> > add outputs (e.g. each
	> > filter stage) or inputs (feeding the audio signal to
	> > another point of the
	> > circuit). For an ADSR you could add a lot of outputs
	> > that e.g. tell you the
	> > duration of the attack or decay stage. One could add
	> > an bypass switch to
	> > each audio or CV processing module (we discussed
	> > this as we started the
	> > A-100 but decided to omit the bypass function as the
	> > shining examples from
	> > Moog and others did not have this feature).
	> > 
	> > You can start an endless discussion which 
	> > features/inputs/outputs/controls make sense for a certain module. 
	But 
	> > we as a manufacturer have to find the
	> > compromise between
	> > features/price/controllability/width/date of
	> > availability
	> > and many other parameters. It will never be able to
	> > satisfy all users and I
	> > know that we have to live with that problem. This is
	> > why I think that
	> > something like the DIY page is a good idea (.... OK,
	> > I know the momentary
	> > stage if far from beeing useful but it is still a
	> > non-official page and only
	> > made known to the Yahoo group).
	> > 
	> > Regards
	> > Dieter Doepfer
	> > 
	> > 
	> > 
	> 
	> 
	> =====
	> synthfreak(parallel worlds)
	> athens-greece
	> [Doepfer_a100] group owner
	> 
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