ARP odyssey noise generator?
2008-06-12 by Johnny
hey guys, i ve fixed EVERYTHING on my arp except for the noise generator. at least, i think it s broken. i ve replace the transistor (Q9) that was
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Re: [vintagesynthrepair] Re: Broken keyboard PCB traces
2008-06-10 by Antoine Deschênes
Use a minature flat screwdriver, it works very well. ... -- Antoine Deschênes
Re: Broken keyboard PCB traces
2008-06-10 by inocencio66
Done. It´s a bit messy but it works :-) Wouldn´t try without asking the pros first... Thank you!
Re: Broken keyboard PCB traces
2008-06-10 by inocencio66
... connector ... traces, I use ... Masters ... lies. --James ... Thanks. Yes, solder mask is how you call it. Sorry I couldn´t remember. Well, using a sharp
Re: [vintagesynthrepair] Broken keyboard PCB traces
2008-06-10 by Roy J. Tellason
... If you re talking about the solder mask that sits on top of the traces, I use an x-acto knife... -- Member of the toughest, meanest, deadliest, most
Broken keyboard PCB traces
2008-06-10 by inocencio66
My SH-101 was in worst shape than I thought: broken copper traces near one of the keyboard matrix connectors. Reflowing the solder joints didn´t do any good
RE: [vintagesynthrepair] Casio CZ-1 output problem
2008-06-10 by Brian Davies
Hi I have just repaired a Yamaha Clavinova with exactly this fault and the problem proved to be a broken solder joint on the PCB. Anytime you have a fault
Casio CZ-1 output problem
2008-06-10 by scituate_mass
Hello. I just purchased a CZ-1 only to discover that it has a very annoying problem. I was only able to try it out with headphones - which emitted a loud,
Problem with Kurzweil K2500R
2008-06-09 by David
Hi So I have sometimes a k2500R problem (when my k2500R do not worked since several days). Indeed, Sometimes I must push on several times the power button to
Re: Looking for Moog Satellite schematic
2008-06-09 by balderson04
You can find the Moog Satellite patent application on line, which includes the complete schematic. Not the same as the service manual, but it will show you
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-09 by PeWe
Hi Frank ! Here they are ... :-) http://search.stores.ebay.de/yello61292__W0QQfclZ4QQfrppZ30QQfrtsZ0QQfsooZ2QQfsopZ2QQsaselZ257930862QQsofpZ0
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-09 by Frank Simon
Well the P10 is working!! Somewhat. It is acting crazy though. I loaded 5 of the 6 CEM3310s in the VCA position (4 of the 5 VCF 3310s were not populated
Roland MKS-7 service manual
2008-06-08 by Philip
Talking of manuals has anyone got a copy of the MKS-7 service in pdf etc? I ve being playing with this module for a while and I think it s absolutely
Re: [vintagesynthrepair] Looking for Moog Satellite schematic
2008-06-08 by Stephen Jones
I have a PDF of the service manual, but it is 12MB so I don t quite know how I could send it to you.
Re: [vintagesynthrepair] Looking for Moog Satellite schematic
2008-06-08 by Malte Rogacki
Do a google search for Moog Satellite Service Manual including the quotes. This should turn up a few hits. -- Malte Rogacki gacki@gacki.sax.de ... Don t
Looking for Moog Satellite schematic
2008-06-08 by grandchampeen
Hi, I was wondering if anyone might have the schematic to a Moog Satellite. Googling has only yielded links to some Moog patents, but I can t seem to find
Re: Need replacement keys for my mini korg 700..
2008-06-08 by Mrs. Synthfool
... Send me a pic of the underside of the keys. I might have what you re looking for. :) ~Monica
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-08 by Frank Simon
Can you tell me what you think of the 6114? I can get them for $2 ... From: Philip To: vintagesynthrepair@yahoogroups.com Sent: Saturday, June 07, 2008 1:30 AM
Re: Prophet 10 dead
2008-06-08 by fsimon100
The control panel (micro computer system)is working. I am planning to set the ADSR soon. Right now I verified EQ board is good by injecting audio generator. I
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-07 by John Loffink
Try Great Plains Electronics for obsolete memory parts. They have 6114s, which I think may be a cross for those for other parts, $2.00 each. I ve used Great
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-07 by Frank Simon
Thanks. I found some 6514 on ebay. There are alot of variety I have to learn. There are NM and HM prefixes both by Harris. Plus -5,-8, -9 suffixes. Do you know
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-07 by Philip
Cool..I checked with my electronics guru friend and he said I am correct about this. 5114 5514 is used in old arcade games like Williams Robotron or Joust btw,
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-07 by Frank Simon
I am going to take your recommendation and get the 5114. The 2114 was a quick troubleshooter. ... From: Philip To: vintagesynthrepair@yahoogroups.com Sent:
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-07 by Stephen Jones
I would have to go look at the schematic, but from memory I think that it would work.
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-07 by Philip
Yeh...Scratchpad can use standard 2114. NV ram = Non volatile IE User patch memory..which is obviously battery backed-upped and so uses 5114/6514 CMOS ram due
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-07 by Frank Simon
I like to hear these details. Off the decoder is NV1,NV2, and Scratch RAM. On my schematic my scratchpad RAM are two 2114s. The part that failed was as you
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-07 by Frank Simon
Thanks. Shouldn t I be able to Inject an audio generator on the coax connecting the voice board to the EQ board to prove the EQ board functional. ... From:
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-07 by Philip
Well you should have used a 5114 not a 2114, that I m pretty sure of, will cause you problems. A 2114 is not a cmos device, it is an nmos..therefore they use
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-07 by Frank Simon
I found an Motorola MCM2114P45 from a ebay seller for $3. I was hesitant because it was their slowest access time part at 450nS. I don t know what the D444C
Re: Korg POLY-61 pitch drift problem
2008-06-06 by plastikanimal
What s up with all the crap popping up in my posts? Does yahoo groups not work with firefox?
Re: [vintagesynthrepair] Need replacement keys for my mini korg 700..
2008-06-06 by Oliver Abplanalp
it seems there are many with broken keys. i need two top c keys for my 700 and 700s... oliver ... __________________________________________________________
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-06 by Philip
Excellent news, well done..so did you use the Ram I suggested? Or did you find a 444? Thanks, Phil. ...
Re: [vintagesynthrepair] Re: Prophet 10 dead
2008-06-06 by Stephen Jones
No sound because no stored patches. Put your oscilloscope on some of the VCO wave output pins and see if there is an audio waveform there. If there is, play
Re: Prophet 10 dead
2008-06-06 by fsimon100
I truly had a great day. I replaced a 1Kx4 RAM and resolved my computer problem on my P10. Now all LEDs light up and the unit behaves somewhat functional. Upon
Re: Korg POLY-61 pitch drift problem
2008-06-05 by plastikanimal
Well I played with it some more and it seems that when in poly mode voices two and three in DCO1 play (with increasing pitch)while
Re: Korg POLY-61 pitch drift problem
2008-06-04 by plastikanimal
Thanks Brian! I will check into it. --- In vintagesynthrepair@yahoogroups.com, Brian Davies wrote: You
RE: [vintagesynthrepair] Re: Korg POLY-61 pitch drift problem
2008-06-04 by Brian Davies
You need to neutralize the acid , the chemical I use is bicarbonate of soda, a teaspoonful in a glass of warm water will work. Then rinse with warm water, dry
Re: Korg POLY-61 pitch drift problem
2008-06-04 by plastikanimal
I used soap and water on the cpu board. The voice board didn t seem to have any acid on it except in one spot where the acid seemed to
Re: Need replacement keys for my mini korg 700..
2008-06-04 by rakky
Damn! That s what I thought. Given a choice between using them on a Moog, or a Korg, someone s going to fix the Moog. Knocks the price up, too.
Re: [vintagesynthrepair] Korg POLY-61 pitch drift problem
2008-06-04 by Frank Simon
That happened on a Korg Trident II for me and I had to re route some of the PC board traces with wire because it fried the board. ... From: Brian Davies To:
RE: [vintagesynthrepair] Korg POLY-61 pitch drift problem
2008-06-04 by Brian Davies
How did you clean off the battery acid? Regards Brian G3OYU www.g3oyu.co.uk _____ From: vintagesynthrepair@yahoogroups.com
Korg POLY-61 pitch drift problem
2008-06-04 by plastikanimal
Hi, I m trying to repair a POLY-61 for a friend. I have very little experience at this.(I replaced the battery in mine so he thinks I m
Re: [vintagesynthrepair] Need replacement keys for my mini korg 700..
2008-06-03 by Tim Glasgow
... Me too! i need a G. These keys were used on the Moog Prodigy as well. --t [london, canada]
Need replacement keys for my mini korg 700..
2008-06-03 by rakky
I need two replacement keys (F&G, top octave) for my mini korg 700. I understand that these keys were also fitted to several other machines: mini korg 700s,
Re: Korg Delta Strings Only Issue
2008-06-03 by thirteentech
Today I had 2 Deltas come in for service, first on has no synth output, second has synth output for around 20 minutes then it cuts out. I will post the fault
MKS-80 stuck note after battery replacement ?
2008-06-02 by gil_we
Is there any known issue with the MKS-80 having a stuck note after battery replacement ?
Re: TR-606 Hi-hat problems FIXED
2008-06-02 by duncan
phil- congrats on your successful repair, & many thanks for the posts. even though I don t have a 606 myself, I found the story genuinely inspirational. it s
Re: Prophet 10 dead
2008-06-02 by eggwheatis
It s brilliant for troubleshooting down to component level on old processor based digital circuits. You need a 9010a and the relevant CPU specific Pod. $850 is
Re: TR-606 Hi-hat problems FIXED
2008-06-02 by eggwheatis
Fixed it last night.....the reason for the hi hat pitch going up and down from selecting pattern play or write was caused by the +5 supply to the 14584 rising
Re: [vintagesynthrepair] Prophet 10 dead
2008-06-01 by Frank Simon
does the 9010a troubleshoot to the component or just tell you there is trouble on the Data Bus. I saw one for sale $850. That s a lot of money. ... From: