Peter Grenader added comments in line:
>>>1) When you are calbrating, are you doing so with the same power
supply it's >>>powered with when it's in the rack?
Yes, I leave it connected, but just loosen the screws and pull it out
of the Doepfer (G6) rack far enough to access the tracking pot. I need
a screwdriver to pry it out, it's so wedged in there.
PG: ThIs sounds like it has more to do with the faceplate width. The width of a M15 faceplate is 3.985 inches, plus or minus .005" - that works out to about 91MM. Pleae check yours.
Unfortunatley, all I have to check it with is a relatively cheap guitar
tuner. Could the tuner be nutty? Seems to work for my guitar and bass.
>>> 2) Who's rack are you using?
See above. Can't remember if it's the psu1 or psu2 power supply, but
I'll check this as well. On the Doepfer list I saw a post by a guy
complaining about how his modules didn't quite fit in the G6 rack right,
and mine is definitely like this (I have another Doepfer suitcase rack
where all the modules fit perfectly.)
PG: Do all the modules have aproblem with fit, or just ours?
Perhaps there was a quality
control issue with a batch of the G6 frames. I mention this * and,
again, I'll double check this tonight tax god's permitting * because
it seems the pcb on the Model 15 was touching something on the adjacent
module.
PG: this is really weird. What are the adjecent modules? The left hand side of the M15 PCB clears the edge of the faceplate by 1 cm - well enough not to present a problem (and this has never com up before). On the other side it's even greater.
If the solder traces are touching some metal part on a nearby
module, couldn't this cause difficulties?
PG: Big time.
I believe the adjacent module
is a Model 12.
PG: This can't be the proble then. THe moel 12 PCBs are the same dimension form the faceplate edge.
I'll do some more sleuthing and report back.
PG: Cool!
Bryan
>>> "Bryan E Cornell" <bcor@loc.gov> 04/16/07 2:38 PM >>>
From Peter Grenader:
Regardig your comment below. THis is a new one on me. I have
questions, then I can answer yours:
1) When you are calbrating, are you doing so with the same power supply
it's powered with when it's in the rack?
2) Who's rack are you using?
Is it home built?
If so....does it have metal rails in which to mount the modules?
If not, have you provided a means to GROUND the faceplates when they
are mounted in the system?
Please let me know. WIth over 300 shipped, I've never heard of this
problem. Can anyone else lend any similar experiences? NOw's a real
good time to take care of problems - more infor on this in the next
couple of weeks.
- P
Original message form Bryan Cornell:
I'm having a devil of a time getting the tracking set on my Model 15.
I've followed the directions from the Plan B yahoo groups and it
works.... at least at first. I get the scaling perfect, but then when I
mount it back in the cabinet, the scaling is screwed up again. How can
this be?
I have a Doepfer rack and everything seems to work fine, except the
module for some reason are a really tight fit in the cabinet. I'm not
sure if this is because the rails are really tight or because some of
the modules are not the exactly the right size.
Any clues on this would be much appreciated. Could something be
touching the Model 15 circuit board and causing this?
Bryan