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2013-05-31 by dearsharps
Is this the best source for cem3396 these days? http://www.maad.net/ms6/index.html On my M1000, one of the voices only plays one osc, so I'm sure it must be a half-dead cem3396. Narrow body for the Matrix 1000 right? Thanks!
2013-05-31 by Martin Ator
Yes if he still has them. he's a cool guy. ________________________________
From: dearsharps <dearsharps@...> To: oberheim@yahoogroups.com Sent: Friday, 31 May 2013, 17:53 Subject: [oberheim] CEM3396 source? Is this the best source for cem3396 these days? http://www.maad.net/ms6/index.html On my M1000, one of the voices only plays one osc, so I'm sure it must be a half-dead cem3396. Narrow body for the Matrix 1000 right? Thanks!
2013-05-31 by John Leimseider
Electronics Technician/ Technicien des instruments electroniques
National Music Centre
134 – 11 Ave SE, Calgary AB T2G 0X5
Phone: (403) 543-5127
Fax: (403) 543-5129 www.nmc.ca
Coming up at NMC:
2013-05-31 by hawkberg
Hi I am having an issue that seems very similar to yours. There is a diagnostics setting inside the M100, here: http://www.retrosound.de/Matrix-1000%20Service.htm THis lets you see which oscillator is not working properly. Then I suggest you swap the CEM chips between the faulty one and one of the others....and if the diagnostics say that your problem is with the same oscillator as before, it is NOT the CEM chip but some logic circuit connected to it. The CEMs are easily swapped using a flat screwdriver pr similar, they are not soldered. I did that, it was not was CEM chip, now I have turned the unit over to a repair guy to have it fixed :-/ regards Håkon --- In oberheim@yahoogroups.com, "dearsharps" <dearsharps@...> wrote:
> > Is this the best source for cem3396 these days? > http://www.maad.net/ms6/index.html > > On my M1000, one of the voices only plays one osc, so I'm sure it must be a half-dead cem3396. Narrow body for the Matrix 1000 right? > > Thanks! >
2013-06-01 by dearsharps
Hi John - I'm in Vancouver, looks like you're in Calgary? It would be nice to be able to avoid international shipping and exchange rates. This guy: http://www.maad.net/ms6/index.html is selling them for $24USD each. Would that be an ok price for you? Also: You work at the National Music Centre eh? I really want to visit there some day... it looks like you guys have an amazing collection of synthesizers. --- In oberheim@yahoogroups.com, John Leimseider <john.leimseider@...> wrote:
> > I still have some... I don't know how much others are charging... > > > > John Leimseider > > Electronics Technician/ Technicien des instruments electroniques > National Music Centre > 134 11 Ave SE, Calgary AB T2G 0X5 > Phone: (403) 543-5127 > Fax: (403) 543-5129 www.nmc.ca > Coming up at NMC: > > National Jazz Summit May 23-25 featuring headliner Denzal Sinclaire > http://www.nmc.ca/whats-on/upcoming > > On May 31, 2013, at 10:53 AM, dearsharps wrote: > > > Is this the best source for cem3396 these days? > > http://www.maad.net/ms6/index.html > > > > On my M1000, one of the voices only plays one osc, so I'm sure it must be a half-dead cem3396. Narrow body for the Matrix 1000 right? > > > > Thanks! > > > > >
2013-06-01 by john.leimseider@...
> Sure, I can send you one for $24 plus shipping... I can throw one on a piece of foam in a padded envelope... The shipping would be $5. If you want to pay by Interac to this address, I can get one shipped out on Monday... I'm assuming you need a narrow body one, right? I have both... I've been at NMC for almost 11 years, so I've been the one doing almost all the restoration and conservation of the electronics collection... Thanks! JL Hi John - I'm in Vancouver, looks like you're in Calgary? It would be nice
> to be able to avoid international shipping and exchange rates. This guy: > http://www.maad.net/ms6/index.html is selling them for $24USD each. Would > that be an ok price for you? > > Also: You work at the National Music Centre eh? I really want to visit > there some day... it looks like you guys have an amazing collection of > synthesizers. > > --- In oberheim@yahoogroups.com, John Leimseider <john.leimseider@...> > wrote: >> >> I still have some... I don't know how much others are charging... >> >> >> >> John Leimseider >> >> Electronics Technician/ Technicien des instruments electroniques >> National Music Centre >> 134 11 Ave SE, Calgary AB T2G 0X5 >> Phone: (403) 543-5127 >> Fax: (403) 543-5129 www.nmc.ca >> Coming up at NMC: >> >> National Jazz Summit May 23-25 featuring headliner Denzal Sinclaire >> http://www.nmc.ca/whats-on/upcoming >> >> On May 31, 2013, at 10:53 AM, dearsharps wrote: >> >> > Is this the best source for cem3396 these days? >> > http://www.maad.net/ms6/index.html >> > >> > On my M1000, one of the voices only plays one osc, so I'm sure it must >> be a half-dead cem3396. Narrow body for the Matrix 1000 right? >> > >> > Thanks! >> > >> > >> > >
2013-06-05 by dearsharps
Thanks for this, it was a good tip to take the extra step and make sure it was actually the chip causing problems, and not some other circuitry. By swapping the chip like you described, I was able to determine that it was indeed the cem3396 acting up. I also realized that it's only a problem on one of the osc's of that chip, and it's with the square wave only, ie the saw was fine. The square was producing some sound, just waaay quieter than it should. I wonder if there is a way to coax a chip like this back to life? Cheers. --- In oberheim@yahoogroups.com, "hawkberg" <sfcls@...> wrote:
> > Hi > > I am having an issue that seems very similar to yours. > > There is a diagnostics setting inside the M100, here: > > http://www.retrosound.de/Matrix-1000%20Service.htm > > THis lets you see which oscillator is not working properly. > > Then I suggest you swap the CEM chips between the faulty one and one of the others....and if the diagnostics say that your problem is with the same oscillator as before, it is NOT the CEM chip but some logic circuit connected to it. The CEMs are easily swapped using a flat screwdriver pr similar, they are not soldered. > > I did that, it was not was CEM chip, now I have turned the unit over to a repair guy to have it fixed :-/ > > > regards > Håkon > > > > --- In oberheim@yahoogroups.com, "dearsharps" <dearsharps@> wrote: > > > > Is this the best source for cem3396 these days? > > http://www.maad.net/ms6/index.html > > > > On my M1000, one of the voices only plays one osc, so I'm sure it must be a half-dead cem3396. Narrow body for the Matrix 1000 right? > > > > Thanks! > > >
2013-06-06 by Jill Saphic
nope... theres not. which is why some of us keep a few new 3396s close by for when the Matrix 1000 loses a voice. Sometimes it's not that chip, it's something else that is quite a bit cheaper & easier to fix. But no one on the planet has the capability ATM to repair a 3396. Not in Japan, not USA, not amywhere. Or I would have about 20 repaired ones sitting in a drawer somewhere... LOL!!! And I'd buy another Matrix-1000 to refurbish and keep at home exclusively. --- On Wed, 5/6/13, dearsharps <dearsharps@...> wrote: From: dearsharps <dearsharps@...> Subject: [oberheim] Re: CEM3396 source? To: oberheim@yahoogroups.com Date: Wednesday, 5 June, 2013, 7:01 Thanks for this, it was a good tip to take the extra step and make sure it was actually the chip causing problems, and not some other circuitry. By swapping the chip like you described, I was able to determine that it was indeed the cem3396 acting up. I also realized that it's only a problem on one of the osc's of that chip, and it's with the square wave only, ie the saw was fine. The square was producing some sound, just waaay quieter than it should. I wonder if there is a way to coax a chip like this back to life? Cheers. --- In oberheim@yahoogroups.com, "hawkberg" <sfcls@...> wrote:
> > Hi > > I am having an issue that seems very similar to yours. > > There is a diagnostics setting inside the M100, here: > > http://www.retrosound.de/Matrix-1000%20Service.htm > > THis lets you see which oscillator is not working properly. > > Then I suggest you swap the CEM chips between the faulty one and one of the others....and if the diagnostics say that your problem is with the same oscillator as before, it is NOT the CEM chip but some logic circuit connected to it. The CEMs are easily swapped using a flat screwdriver pr similar, they are not soldered. > > I did that, it was not was CEM chip, now I have turned the unit over to a repair guy to have it fixed :-/ > > > regards > Håkon > > > > --- In oberheim@yahoogroups.com, "dearsharps" <dearsharps@> wrote: > > > > Is this the best source for cem3396 these days? > > http://www.maad.net/ms6/index.html > > > > On my M1000, one of the voices only plays one osc, so I'm sure it must be a half-dead cem3396. Narrow body for the Matrix 1000 right? > > > > Thanks! > > >
2013-06-07 by Bob Grieb