Re: [vintagesynthrepair] Re: Moog Prodigy pitch issues
2006-05-31 by RWKJ@aol.com
hello this occurs after warm up? when was the last time it was serviced? I own a multimoog sometimes it s as simple as scaling and ranging the oscillators or
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Re: Moog Prodigy pitch issues
2006-05-31 by Michael Bacich
On May 29, 2006, at 7:10 AM, jamesguitar2000 jamie@thenewdeal.ca ... Your keyboard contacts are dirty. They need to be be cleaned.
Omni 2 Repair
2006-05-31 by Chris Yakopcic
Hi, Ive been working on this Omni 2 for a while and Ive come to a point where I wanted to ask some questions before I just replace all of the CMOS chips So far
SH-101 CPU
2006-05-30 by stagerhodes
Hi to all, does anybody knows the correct voltages that are supposed to reach the CPU pins in the SH-101 ? Since the schematics are a bit diferent than the
Re: Ensoniq Mirage help
2006-05-29 by djbrow54
It s a 68B09EP. While scoping the data lines of the eprom, D1 - D7 were always high. D0 appeared to be always low. Seems quite suspicious. I can try and find
Re: [vintagesynthrepair] Re: Ensoniq Mirage help
2006-05-29 by GB
... I don t remember for sure but AVMA might be Address Valid. Which means that the address lines have finished wiggling and are valid for the upcoming
Re: Ensoniq Mirage help
2006-05-29 by djbrow54
I m got much more Intel than Motorola experience. Here s what I found so far. With the eprom removed, the G (and E) pins cycle more like what I would expect
Re: [vintagesynthrepair] Ensoniq Mirage help
2006-05-29 by GB
... Just look for 6809 or MC6809 or M6809. It s a standard Motorola 8-bit microprocessor from the 1979 onward. The B is just a slightly faster crystal. If
Ensoniq Mirage help
2006-05-29 by djbrow54
I just picked up an Ensoniq Mirage for parts and would like to see if I can coax some life out of it. Everything appears dead. Power supplies are good. I m
Moog Prodigy pitch issues
2006-05-29 by jamesguitar2000
hi everyone: i ve been playing a moog prodigy for close to 15 years now and have run into this problem for the first time: when i m playing the keyboard will
re: Moog Sonic Sickness
2006-05-27 by Michael Bacich
Hello, I don t know how to test the ua726, other than just popping a new one in there and seeing what happens. Unfortunately, it s a rather unusual transistor
Moog Sonic Sickness
2006-05-27 by easterleggs
My Sonic Six has oscillators that are on the fritz. I suspect the dreaded uA726 mainly because it s common to both. Can anyone give me a quick tutorial on
EML500 schemos?
2006-05-27 by Rick
anyone have schemos for the 500? -r
Memorymoog pulse width calibration?
2006-05-21 by edibennardo
Hi, my first post here though I joined the group years ago. I have a problem: In my Memorymoog the pulse width amount surpasses rather easily the extreme two
Re: SCI six trak problem
2006-05-21 by analogback
... EDIT: factory reset solved it!!
SCI six trak problem
2006-05-21 by analogback
Im kicking myself about destroying a mint sixtrak that I just bought.. it seems in the process of plugging it in to a 240v - 110v stepdown transformer the
Grumpy Roland MKS-80
2006-05-17 by asemcken
I ve got a new (to me) MKS-80 Super Jupiter that seems to be working at about 75% right now. The upper voice board has a problem with voice C s PWM, on both
New moderator?
2006-05-17 by Brian Andrew Marek
Hello, folks, this is Brian. I created this group and have been moderating it for the last... well, hell, it must be about five years. However, I haven t
Re: [vintagesynthrepair] Trying to diagnose a dodgy JX3P
2006-05-17 by GB
You are going to need a scope to fix it. The schematic shows the parts associated with selecting the waveform (although they are also well marked on the PCB
Trying to diagnose a dodgy JX3P
2006-05-16 by b_j_glover
I recently picked up a Roland JX3P (digitally controlled analogue) on Ebay and found that some notes played quiet on some patches. I think I ve traced this as
x
2006-05-14 by Jon Pratt
x
Re: Hybrid Arts ADAP versions & options questions (cross-post)
2006-05-10 by Max Zape
I was a beta tester for Hybrid Arts [later Bear Creek Software]in the 80 s; the ADAP rack was nice but limiting. I was told that the software team was partly
Hybrid Arts ADAP versions & options questions (cross-post)
2006-05-10 by Larry T.
Hi All I know that this is not an Atari related group, but this group covers a lot of different backgrounds and experiences and so I hoping someone on the list
RE: [vintagesynthrepair] Re: Siel DK-600 - help, please..
2006-05-09 by Scott Nordlund
... You should probably replace any component with corroded leads- shouldn t be anything expensive anyway. The real problem is corroded traces on the board-
Re: Siel DK-600 - help, please..
2006-05-08 by P........
Alright. I finally found the time to take a closer look at this thing. Now what I have found out so far is that one of the solder spots for the battery seems
Re: [vintagesynthrepair] FS: Vintage Synth Parts - Chips, Pots, Knobs, Keys, etc
2006-05-06 by jmarie
Hi man! what kind of switches do you have? I m looking for 8 to 10 digitasts switches for my Korg BX3. Shall I have a chance to find what I need for my babe?
Re: [vintagesynthrepair] FS: Vintage Synth Parts - Chips, Pots, Knobs, Keys, etc
2006-05-06 by pewe
Hi ! How many CEM 3340 are available ? Are these NOS, used, - tested ? Are you able to ship to germany ? regards PeWe ... From: bigfootstudios
FS: Vintage Synth Parts - Chips, Pots, Knobs, Keys, etc
2006-05-06 by bigfootstudios
Hi, selling off some of my spare parts - RARE SYNTH CHIPS CEM3310 EG $40 CEM3320 VCF $15 CEM3340 VCO $40 Roland 80017A VCA/VCA $65 Roland MC5534A Waveform
RE: [vintagesynthrepair] Re: Siel DK-600 - help, please..
2006-05-05 by Scott Nordlund
... The problem with leaky batteries is that the electrolyte solution corrodes the board traces and messes everything up- you ll have to replace the affected
Re: Looking for AY-1-5050 chip
2006-05-04 by gil_we
... it ? Yes, it seems so. ... An Envelope IC, used on many synths. ... Well, have you got any of those ? ... interesting... I got a few.
Re: [vintagesynthrepair] Prophet VS
2006-05-04 by fabio delben
Hello, it is a tipical problem of the VS. All keyboard version have this problem, because of some ground loop in the psu. Try to remove the earth of the psu
Re: Siel DK-600 - help, please..
2006-05-04 by P........
... are at ... up the ... battery has ... want to ... turns on ... stuck ... pitch ... the ... terminal ... it wears ... Ok.. I have just opened it up. I see
Re: [vintagesynthrepair] Re: Looking for AY-1-5050 chip
2006-05-03 by pewe
... From: gil_we To: Sent: Wednesday, May 03, 2006 10:21 PM Subject: [vintagesynthrepair] Re: Looking
Re: Looking for AY-1-5050 chip
2006-05-03 by gil_we
SSM2044 SSM2056 I also have miscellineous Polysix parts.... any AY-1-5050 in hand ?
Re: [vintagesynthrepair] Looking for AY-1-5050 chip
2006-05-03 by pewe
Which ones ? PeWe ... From: gil_we To: Sent: Wednesday, May 03, 2006 7:01 PM Subject:
Looking for AY-1-5050 chip
2006-05-03 by gil_we
can trade with SSM chips. gilwein (at) walla.co.il
Re: [vintagesynthrepair] Prophet VS
2006-05-03 by pewe
http://winecountrysequential.com/main.html This is winecountry ... regards, - PeWe ... From: Sandra Garcia To: vintagesynthrepair@yahoogroups.com Sent:
Re: [vintagesynthrepair] Prophet VS
2006-05-03 by steve sloan
Sequential s financial condition in 1987 prompted a small group of ex-Sequential ™ employees to form Wine Country Productions in an
Re: [vintagesynthrepair] Prophet VS
2006-05-03 by Sandra Garcia
what is winecountry ? Sandra Garcia ... From: steve sloan To: vintagesynthrepair@yahoogroups.com Sent: Wednesday, May 3, 2006 6:35:08 AM
Prophet VS
2006-05-03 by steve sloan
I recently bought a Prophet VS. The transformer buzzes loudly so I m planning on replacing it. I bought a replacement from WineCountry but it appears to be the
FOR SALE: KORG POLY 800 SYNTHESISER
2006-05-03 by rakky
I m selling a 1980s Korg Poly 800 Mk1 synthesiser. I bought this because it had been abused by it s owner. It had a,b,c,d,e,f etc written on he keys, and the
RE: [vintagesynthrepair] Siel DK-600 - help, please..
2006-05-03 by Scott Nordlund
... Ah, I ve got one of these. Broken of course, I think most of them are at this point. Take the screws out of the bottom, open it up, and lift up the
Re: [vintagesynthrepair] arp omni problem
2006-05-03 by Scott Nordlund
... I know :)
Re: [vintagesynthrepair] arp omni problem
2006-05-03 by Roy J. Tellason
... Ok, that makes sense... ... Or such a loud noise, on occasion. :-) ... -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest --
Siel DK-600 - help, please..
2006-05-03 by P........
I have recently purchased a defective Siel DK-600, hoping that it might be an easy fixer-upper. Now.. what it does when I turn it on is.. almost all leds are
Re: [vintagesynthrepair] arp omni problem
2006-05-02 by John Brewer
That is right up to a point. I don t change them just for the sake of it but over the years I have had more Tantalum failures in PSUs than any other type. If
Re: [vintagesynthrepair] arp omni problem
2006-05-02 by Roy J. Tellason
... Might be. But OTOH I m not about to second-guess the guy that designed the thing in the first place. Yeah, tantalum caps have some issues, but as long
Re: [vintagesynthrepair] arp omni problem
2006-05-02 by Scott Nordlund
... Tantalum capacitors are more sensitive to overvoltage conditions and can do much more evil things when misused (see Oldcrow s synth repair tips that were
Re: [vintagesynthrepair] arp omni problem
2006-05-02 by John Brewer
Generally, bog standard electrolytics are cheaper and have a greater tolerance to ripple current, so they are happier to live in power supplies than Tantalum.
Re: [vintagesynthrepair] Re: arp omni problem
2006-05-02 by Roy J. Tellason
... Yup. And you don t want to put them in backwards... ... That s a good start. See my earlier post... -- Member of the toughest, meanest, deadliest, most