----- Original Message -----From: narfman96Sent: Sunday, November 13, 2011 2:17 AMSubject: [vintagesynthrepair] Re: Matrix 1000Hi Steve
There is also a Yahoo group for Oberheim synths. The link is:
http://launch.groups.yahoo.com/group/oberheim/
The manual will explain how to run the calibration for the voices. If one is still weak it may be one of the the CEM3396 voice chips has failed.
There is a unison mode where you can play all the voices in mono or if you set the midi channel to G1 (up to G9) each midi channel will have a mono voice for the six voices. The starting channel for G1 is channel 1, G2 is channel 2 etc...
Fran - Moderator Oberheim Yahoo Group
--- In vintagesynthrepair@yahoogroups.com, "Quazimodo" wrote:
>
> http://soundprogramming.net/synthesizers/oberheim/oberheim_matrix_1000
>
> Cheers,
> TOM
>
>
>
> --- In vintagesynthrepair@yahoogroups.com, Steve Mays wrote:
> >
> >; I just took my Matrix 1000 out of long term storage (that means my
> > closet). Works fine when first turned on but after a few seconds when
> > playing a single note line (such as a bass line) I get notes that are
> > softer than others (which doesn't happen until after being on a minute
> > or so). I didn't get an owner's manual with it and would like to get
> > that and a service manual if anyone has them. I'm figuring that the one
> > or two of the voices are causing the problem so I plan to start
>; > troubleshooting there. If any of you have seen this problem please let
> > me know. (Is there a way to get this thing into mono mode? I'm using the
> > module for bass lines so I don't need polyphony at the moment.)
> >
> > --
> >
> > Steve Mays KS4KJ
> > 5+6 String Basses
> >; Fretted and Fretless
> > http://www.myspace.com/stevemays
> > http://www.facebook.com/SteveMaysBass
> > http://atlantapromusicians.ning.com/profile/SteveMays
> >
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Message
Re: [vintagesynthrepair] Re: Matrix 1000
2011-11-13 by jack
thats a psu issue cuased by ripple in the filter
caps which are getting hot and failing over time
if it was a problem with the voice chips if they
fail they either give out very load static sound
or dont produce any sound at all
by all means do a calibration first
but power filter caps have a life expectancy of
2000-4000 hours use at constant voltage
they will out perform this hour rating but will
fail
change for military grade 105oc of same
capacitance 10000 hours life
its a common thing on american synths
ensoniq /emu/ sequencial /moog /oberheim all suffer
from this