Re: [vintagesynthrepair] Re: to-host serial-to-MIDI port
2009-12-17 by GB
I have a device that has a UART running at the correct MIDI baud rate. Unfortunately, it only has an RS232 cable. If I want it to talk MIDI I need to convert
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Re: [vintagesynthrepair] Re: to-host serial-to-MIDI port
2009-12-17 by Alan Probandt
Thanks for the reply. I would be curious to know why a MIDI signal would need to be converted to RS232 levels at 31250 baud. MIDI is a current loop in
Re: [vintagesynthrepair] Re: to-host serial-to-MIDI port
2009-12-16 by GB
... If that s true then you can find some info on the web for the mac interfaces. I ve seen schematics for the Midiman Mini MacMan (r whatever it s called.
Re: to-host serial-to-MIDI port
2009-12-16 by narfman96
Alan, This is a Mac serial port and all are the same. Alesis, Korg, Roland, Yamaha, etc. Some will run at 115800 baud.... Fran
to-host serial-to-MIDI port
2009-12-16 by Alan
Hello, I just won a Kawai Gmega tone module on ebay and noticed that it has a serial port-to-MIDI connector like many mid-1990s tone modules do. This is a
RE: [vintagesynthrepair] Re: TECHNICS AX-7 - help needed
2009-12-16 by timothy kosiorek
service manual is available here: http://www.bonanzle.com/booths/tkosiorek/items/TECHNICS_MODEL_SX_AX5___AX7_SYNTHESIZER_SERVICE_MANUAL
Re: TECHNICS AX-7 - help needed
2009-12-16 by Scott
... Bassy sound...Sounds like power supply hum. Thats where i d look first. Discolored or swollen parts
RE: [vintagesynthrepair] TECHNICS AX-7 - help needed
2009-12-15 by francois
Any sound from headphone output? To: vintagesynthrepair@yahoogroups.com From: laser@onvol.net Date: Tue, 15 Dec 2009 14:17:29 +0100 Subject:
TECHNICS AX-7 - help needed
2009-12-15 by eons
Hi, I have this Technics for repair it power s up alright. All buttons work but no sound comes out from the tones/patches or rhythm section. The LCD display
Parts available
2009-12-14 by Monie
Hello! :) I have a few items on eBay that y all might be interested in, such as CEM s, Polymoog keys, and a very neat MIDI to CV interface cable my husband
FS: Digital Music Corp MX-8 MIDI Patch Bay/Event Processor
2009-12-11 by GB
I had previously discussed my upgrade efforts on this unit. If you have a MIDI cable nightmare, maybe this can help you out. Please check my eBay auction at
Available
2009-12-09 by Scott
Manuals for the Ensoniq ESQ1( I have 2) and Ensoniq TS10/12 . Both in paper. $10.00 each plus postage. THanks
RE: [vintagesynthrepair] Re: Kurzweil K5000R with no battery compartment!
2009-12-08 by timothy kosiorek
Hello:I got up tooo early today and the brain aint workin 100%,I contacted you because I saw your email address on top of the posting,as far as the battery
Re: Kurzweil K5000R with no battery compartment!
2009-12-08 by mjkirk12
Sorry, I did not read the details of his email. His holds 3 AAA batteries, not 3 AA batteries. So it may not work in the Kurzweil. -Mike
Re: Kurzweil K5000R with no battery compartment!
2009-12-08 by mjkirk12
Hi again, I received a direct email from: timothy kosiorek He included a picture of the battery holder - he has a few spares to sell for $3
Re: Kurzweil K5000R with no battery compartment!
2009-12-08 by mjkirk12
I purchased a used K2500RS with a similar issue. The tube holding the batteries had cracked and broken near the back panel (entry door). However, the tube was
Re: [vintagesynthrepair] Kurzweil K5000R with no battery compartment!
2009-12-08 by Stephen Jones
Just buy a small AA holder from an parts shop and mount it inside, and open the machine up when the batteries need changing. sounds like the battery tube has
Kurzweil K5000R with no battery compartment!
2009-12-08 by brofjw
This is wierd, and I hope maybe someone out there has someidea of this. I have a Kurzweil K5000R which I knew needed an internal battery when I bought it. It
Re: Curtis CEM3340 (s)
2009-11-30 by ambrosia800
Hi! Have already done so... Waiting for the CEM to arrive! ;-) S_Carter
Re: Curtis CEM3340 (s)
2009-11-29 by synthparts
No I m still here. :) I have some 3340s in stock just send me an email. Thanks
Oberheim OB8 Problems
2009-11-26 by dfdf
Hello, i have a question about an Oberheim OB8 Synthesizer. This unit have a bad voice - but this in not the problem in this time. there is problem with the
FS Parts for: Polysix, Matrix 6, Juno 106, Korg M1
2009-11-22 by Gil
Email me with questions Thanks :)
Re: Curtis CEM3340 (s)
2009-11-22 by ambrosia800
Are they still in business? I thought, they stopped..
RE: Curtis CEM3340 (s)
2009-11-21 by Todd Fletcher
http://www.synthparts.com/ Great to deal with. -TF http://www.synthparts.com/ Great to deal with. -TF
Curtis CEM3340 (s)
2009-11-21 by ambrosia800
Looking for a CEM3340, could either be a white dot selected, or a standard one. Anybody?
ELKA 610 Schematic posted
2009-11-19 by Scott
I ve uploaded a zip file to the files section
Re: Crumar Trilogy repair
2009-11-19 by Scott
... to over-voltage damage and they blowup if you put them in backwards. They dont dry out like old electrolytics.
Re: ELKA Rhapsody 490 schematic
2009-11-19 by duncan
me too- have asked here before, but it seems this schemo is hard-to-find. I have a dead switch, I think, but would like to be sure. duncan.
RE: [vintagesynthrepair] Re: Crumar Trilogy repair
2009-11-18 by Brian
They can do Susie. Regards Brian G3OYU From: vintagesynthrepair@yahoogroups.com [mailto:vintagesynthrepair@yahoogroups.com] On Behalf Of Susie Sent: 18
Re: Crumar Trilogy repair
2009-11-18 by Susie
I had to replace a tantalum on my Roland RS202 to fix a bad note. Do tantalums have the same limited life that electrolytics have? Ta Susie
ELKA Rhapsody 490 schematic
2009-11-18 by scituate_mass
Hi. Would anyone happen to have a copy of the ELKA 490 schematic? If so, please contact me. Thanks!
Re: [vintagesynthrepair] Re: KORG iS35
2009-11-17 by Noel Buhagiar
Thanks very much Scott for your reply Will try that out, Noel ... From: Scott To: vintagesynthrepair@yahoogroups.com Sent: Tuesday, November 17, 2009 15:23
Re: Crumar Trilogy repair
2009-11-17 by ambrosia800
Re: Crumar Trilogy repair It is not a normal ground loop problem. The hum seems to be directly related to the number of voice cards in the machine. So I think,
Re: Crumar Trilogy repair
2009-11-17 by Scott
-If you can take the ground loop out of the equation, the most likely cause is power supply filtering capacitors that have gone dry and arent doing what
Re: KORG iS35
2009-11-17 by Scott
... http://www.partsisparts.net/content/estore_list.asp?category=3&catname=Korg He might be able to get you one.
Re: [vintagesynthrepair] Re: Crumar Trilogy repair
2009-11-17 by Daniel Forro
AFAIK a cause for ground loop is using of different outlets in the room (different line circuits). Using only one outlet for all equipment can hardly be a
Re: [vintagesynthrepair] Re: Crumar Trilogy repair
2009-11-17 by Alan Probandt
Do you have several pieces of equipment plugged into the same outlet? This might be causing a ground loop that increases in strength after the equipment has
Re: [vintagesynthrepair] Re: Crumar Trilogy repair
2009-11-17 by plat@simnet.is
Whenever I encounter hum I check for loose ground connections. Take care Arnar ... Frá: duncan Til: vintagesynthrepair@yahoogroups.com
KORG iS35
2009-11-16 by Noel Buhagiar
Hi, I have Korg iS35 for repair, the upper l.e.d lights are intermittent and when they go off the buttons do not operate. The fault could be made by bumping
Re: Crumar Trilogy repair
2009-11-16 by duncan
... are there power regulation components on any of the voice cards? I don t know the trilogy, but if there are regs or smoothing caps local to each card,
Crumar Trilogy repair
2009-11-13 by ambrosia800
I have a Crumar Trilogy with some problems... First of all I need a CEM 3330 and a CEM 3320. One voice board is dead due to these chips. Maybe also the CEM
Re: Scored!...PAIA StringsNThings
2009-11-12 by Scott
... I ve done a Mini , a Cs-15 , Korg 01/W , ESQ-1 and (when I get the time) I ll be refurbing an ARP OdesseyII. I also have two Poly6 units on my repair que.
Re: [vintagesynthrepair] Scored!...PAIA StringsNThings
2009-11-11 by Dave Garfield
Hi, Scott! Waaaaay back in 78, when I built my very own Stringz n Thingz, I had the same problem. The high C key kept slapping against that end piece
RE: [vintagesynthrepair] Scored!...PAIA StringsNThings
2009-11-11 by ken k
I ve been playing with PAIA stuff since the 70 s when i built there P8700J microprocessor controlled synthesizer, a really big thing at the time, as it was one
Re: ARP Odyssey 2800 oscillator problem.
2009-11-11 by Nicolas
Hi, The trimmers are fine. When I m comparing the voltages beetwen VCO1 and VCO2, the pitch of VCO1 is shifting if I touch the grid of its JFET (Q6) with my
Scored!...PAIA StringsNThings
2009-11-11 by Scott
I found it at a local used thing-a-ma-gig store Everything works but the very highest key sticks and that s only because of how it sits in the case First put
Re: ARP Odyssey 2800 oscillator problem.
2009-11-11 by Monie
Caveat: I am not a tech. But I can t help but ask--did you replace the trimmers as well?
Re: ARP Odyssey 2800 oscillator problem.
2009-11-07 by Alexis V. Rogers
Is VCO-2 tracking properly? If so you can compare the two and look for where the voltages do not match. -Alex
ARP Odyssey 2800 oscillator problem.
2009-11-07 by Nicolas
Hi everybody, I m trying to fix an white ARP Odyssey 2800 but I m having a hard time. The problem is that the octaves on VCO-1 are not linear. For example, if
RE: [vintagesynthrepair] Minimoog PSU caps question ...
2009-10-31 by Brian Davies
Tom It shouldn t matter. The only criteria to matter is the working voltage. Provided the working voltage is higher than the one installed you will be OK.