Jupiter 6 out of tune
2011-10-17 by Nicolas
Hi everybody, I m trying to fix a Jupiter 6 that is out of tune. The master tune potentiometer has to be completely to the left to tune the keyboard properly.
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Jupiter 6 out of tune
2011-10-17 by Nicolas
Hi everybody, I m trying to fix a Jupiter 6 that is out of tune. The master tune potentiometer has to be completely to the left to tune the keyboard properly.
Hohner Stringer help?
2011-10-17 by Robert Weigel
I ve documented a bunch of stuff on this. It appeared after drawing out the keyer cards that the yellow wire going to the key switch board needed voltage of
Poly Six spec parts
2011-10-14 by Scott
I found a seller on Ebay that had the 2sa798 ( 5 lead transistor pairs) MUCH better $ than most. I m also researching into what would be a replacement
Re: KC-150 Roland amplifier
2011-10-14 by Scott
... Thanks Eli....I might get one of those for service and need the info
Roland GR-500 synth Poly-Ensemble doubling trigger?
2011-10-13 by desh_59
I just bought one complete GR/GS-500 system and I wonder if the Poly-Ensemble section works properly. Since I cannot compare with demos on the web since it is
Re: [vintagesynthrepair] Re: KC-150 Roland amplifier
2011-10-13 by Eli Corral
... Good luck! ... -- *Best Regards, Eli Corral 1800 B. Blue Crest Drive Austin, TX 78704 Phone 512-294-4639 *
Re: KC-150 Roland amplifier
2011-10-12 by fred
thanks for the link , I have the owners manual but I need the service manual or at least the schematic and parts list . the power amplifier IC is burned so
RE: [vintagesynthrepair] Matrix-12 potentiometers
2011-10-07 by timothy kosiorek
Torx is a good try sometimes these manufacturers make the screws with such a shallow depth it is hard to get anything to grip,a lot of times I use regular flat
Re: [vintagesynthrepair] Matrix-12 potentiometers
2011-10-07 by Arto Koivisto
... Thanks for the tip! As funny as it is, I m actually stuck at the moment trying to locate a proper hex screwdriver to remove the lever / spring mechanism
Re: [vintagesynthrepair] AKAI MX73 (keyboard controller) schematics ?
2011-10-07 by Roger J
Or an AX80 schematic!! ________________________________ From: Gil To: vintagesynthrepair@yahoogroups.com Sent: Monday, October 3, 2011 3:33
Re: [vintagesynthrepair] Matrix-12 potentiometers
2011-10-07 by Roger J
Cantos Music Foundation bought the last of the Oberheim Service Departments part stock that former OB service manager Tom Dunn had sold to MT Services a couple
Pratt Read 61 note keyboard/keybed
2011-10-04 by oldtimemidi
For those of you who might be interested: I ve listed on Ebay a Pratt-Read 61 note keyboard/keybed. I bought this, along with several other items at the ARP
AKAI MX73 (keyboard controller) schematics ?
2011-10-03 by Gil
Any chance anyone has it and is willing to share ? I have this nice keyboard here which doesn t boot... Looks like quite a simple circuit, but a scheme will
Matrix-12 potentiometers
2011-10-03 by Arto Koivisto
Heya! Would anyone have any idea what brand/model the modulation lever potentiometers in Oberheim Matrix-12 are? Also, can anyone recommend a source for spare
Re: Roland S-50 Static Output
2011-09-21 by Jim Atwood
Thank you Scott! I ll definitely check this out. Much appreciated. Jim
Re: Roland S-50 Static Output
2011-09-21 by Scott
... The output op amps are going into distortion mode. This is probably due to a less-than-clean +/- supply going to the op amps. Have someone with an
Re: Looking for Roland Parts
2011-09-21 by Jim Atwood
Hello Javier, Wow! I m replying to a really old post but the static problem you had on your S-50 back in 2003 is exactly what I m experiencing now in 2011.
Roland S-50 Static Output
2011-09-20 by Jim Atwood
Hello! I m curious if anyone has owned and experienced static output with the Roland S-50. I m trying to determine whether I need to replace the Output Jack
Re: Korg SQ-10 anomaly..? FIXED..!!!
2011-09-16 by Quazimodo
Hi folks, I managed to fix it with a little trial and error. If you feed the reset patch cord vis a .01 ceramic disc capacitor the problem is resolved. Cheers,
Re: Korg SQ-10 anomaly..?
2011-09-16 by Quazimodo
Thanks for the quick reply Mike. But no, the ground lug on the reset sockets isn t actually wired! And when I touch the live tip to a known ground point it
Re: [vintagesynthrepair] Korg SQ-10 anomaly..?
2011-09-16 by Mike
Korg uses s-trig on most vintage stuff. When you pull the jack out, the tip probably makes contact with ground, resetting the sequencer. You could verify this
Korg SQ-10 anomaly..?
2011-09-16 by Quazimodo
Hi everyone, I have a Korg SQ-10 sequencer. I am trying to sequence different patterns of different lenghts by patching the reset whilst the sequence is
Re: Oberheim OB-X diagnostic ROM
2011-09-10 by synthparts
I would recommend what a friend and I did and replace the old triple supply 2708s with a 2732. This is what we did -
Re: [vintagesynthrepair] Re: Multimoog force sensor
2011-09-06 by Terje Winther
Very good to hear this. Terje ... Terje Winther terje.winther@wintherstormer.no http://www.wintherstormer.no/ Very good to hear this. Terje Den 6. sep.. 2011
Re: [vintagesynthrepair] Re: Oberheim OB-X diagnostic ROM
2011-09-06 by kevin siegenthaler
greetings Doug: thanks for the reply. I ll try to make this brief. 1) no scanning of pot, switches, LEDs or D/A converter 2) supplies good, no ripple 3)
Re: Multimoog force sensor
2011-09-06 by ambrosia800
Update... I checked the pots, the reason for the misbehaviour of the Multimoog was in fact R53, the good news is: it is accessable from the rear. It´s the
ob-x
2011-09-06 by jim finch
I have a dog on the bench.D03 line does not swing the full +5 volts.Have buzzed out the data lines with a meter before and after pulling anything socketed on
Re: [vintagesynthrepair] Re: Pinout needed : Technics SXPX208
2011-09-06 by Keith Alston
Scott, You might try the following site at Parts Express; I ve bought lots of connectors, cables, etc...good company. Hope this helps.
Re: Pinout needed : Technics SXPX208
2011-09-06 by Scott
... FOUND IT!!....It was in the model 307 service manual
Pinout needed : Technics SXPX208
2011-09-05 by Scott
This keyboard has a mini DIN cable with 4 wires plus shield This is the sustain-soft pedal cable Does anyone know where I can get the pinout for the pedal-end
Re: Oberheim OB-X diagnostic ROM
2011-09-05 by synthparts
It would be nice to have if anyone can has a ROM image file for it but I ve fixed a few OB-Xs and never found I needed it. Usually you can just use a meter and
Re: [vintagesynthrepair] KC-150 Roland amplifier
2011-09-04 by Keith Alston
Fred, You can download the manual @ http://www.roland.com/products/en/_support/om.cfm?PRODUCT=KC%2D150 Good luck. Keefy ... From: fred
KC-150 Roland amplifier
2011-09-04 by fred
anyone have the service manual or know a source for same ? andrew kd5pnt
Oberheim OB-X diagnostic ROM
2011-09-02 by cordanova@yahoo.com
greetings I am in need of the factory obx diagnostic ROM or the file so I can burn one any leads would be most appriciated Kevin S
Re: [vintagesynthrepair] Re: Multimoog force sensor
2011-09-01 by Terje Winther
... Yes, that is correct. I don´t have my multimoog right here, so I don´t know exactly where on the board it is. ... Unfortunately not. There are some of
Re: Multimoog force sensor
2011-09-01 by ambrosia800
Ah OK, where is R53 located? I guess on tandem board 3, not the main board? I guess there should be an access hole in the rear? For me it seems, that the keys
Re: [vintagesynthrepair] Re: Multimoog force sensor
2011-08-31 by Terje Winther
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
Polysix fix?
2011-08-31 by ericthecat@q.com
I have a Korg Polysix that doesn t have a power cord. I received it from my old boss and I m not sure if it works at all. I m kinda afraid to add a power cord
Re: Multimoog force sensor
2011-08-31 by 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
Re: MicroMoog power supply
2011-08-31 by stompboxaron
Wow, almost one year and I still haven t fixed the MicroMoog. I gave up and ordered a 1468L chip from Hong Kong that I found on ebay. I will replace that and
JP-8000 owners???
2011-08-31 by stompboxaron
I got a new JP-8000 recently. I had to change out the battery. I noticed that the main outputs are very, very low. The headphones are fine and plenty loud.
Re: [vintagesynthrepair] Re: KORG 3500 Grand piano help
2011-08-29 by Harald van Veghel
Hi Scott, if you re looking for old C3500 piano keys I ve a few keys in stock. These are indeed equal to the old Yamaha CLP300 series (Order number
Re: [vintagesynthrepair] Multimoog force sensor
2011-08-25 by Terje Winther
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 ... Terje Winther
Multimoog force sensor
2011-08-24 by ambrosia800
Where can I adjust the sensitivity of the force sensor? It´s doing the job too well at the moment..
RE: [vintagesynthrepair] Re: KORG 3500 Grand piano help
2011-08-24 by ken k
compare the key to the replacement parts available for the Korg X2/X3 series. They are made by Yamaha and there is a guy on the web somewhere that sells them.
Re: KORG 3500 Grand piano help
2011-08-24 by Scott
... Thanks , Roger...I had a sneaking suspicion about the Yamaha parts. If my search falls flat , I may contact you again. Are the parts in the UK??
Re: [vintagesynthrepair] KORG 3500 Grand piano help
2011-08-22 by Roger J
Almost all of the Korg home products were made by Yamaha. They had Yamaha keys and Yamaha circuit boards. You might remove one or two and take them to a shop
ELP tribute this weekend...
2011-08-22 by Quazimodo
Just to let group members know that Emerson Lake and Palmer tribute: Noddy s Puncture will be playing three gigs in East Sussex UK this coming bank holiday
Re: KORG 3500 Grand piano help
2011-08-19 by martythevampire
Not sure if it will help but I know my Korg SG-1D piano used a Yamaha keyboard assembly, thats what the tech put in it when the top octave went on mine many