arp odyssey s+h continued...
2008-05-17 by Johnny
hey guys... so i ve replaced A1, A2, A3 and Q3 on board b of the Arp Odyssey and my sample and hold secion still wont modulate anything. any ideas? should i
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RE: [vintagesynthrepair] Re: Arp 2600 parts.
2008-05-16 by timothy kosiorek
Kevin does sell the sliders on Ebay for $50.00 for 6 of them Thats not too bad.his wife Monica actually has the Ebay stuff under the Ebay ID of
Re: rewiring MKS70 power supply for 230v ....
2008-05-16 by gil_we
Thanks, The transformer indeed has taps for both 240v and 220v, but there s also an AC Filter board placed between the outlet and the transformer. See the
Re: Arp 2600 parts.
2008-05-16 by unreliablerecords
... Kevin Lightner at synthfool.com has the 100k Linear sliders, he is the same one that sells the shafts on ebay I believe. The audio sliders might not be
Re: [vintagesynthrepair] rewiring MKS70 power supply for 230v ....
2008-05-16 by Russell Rose
My Roland schematic indicates that there are various taps on the primary of the power transformer for100V117V220V240V. You ll have to look inside of course.
Arp 2600 parts.
2008-05-16 by jahg88
Hi all,Anyone out there have fader shafts and the square knobs for a ARP 2600.Some of mine are broken off,I can still use the faders,but it would be nice to
RE: [vintagesynthrepair] Re: rewiring MKS70 power supply for 230v ....
2008-05-16 by Brian Davies
Provided it is of the correct rating - no. Regards Brian G3OYU www.g3oyu.co.uk _____ From: vintagesynthrepair@yahoogroups.com
Re: rewiring MKS70 power supply for 230v ....
2008-05-16 by gil_we
Can using a downstep transformer (230v to 110v) cause any damage to the MKS70 transformer ? ... had to
Re: [vintagesynthrepair] rewiring MKS70 power supply for 230v ....
2008-05-16 by PeWe
AFAIK, you have to change the transformer. I have a MKS70 too since many years and got it from the US,- so I had to change it too.
rewiring MKS70 power supply for 230v ....
2008-05-16 by gil_we
Does anyone have any idea how a 110v MKS70 can be internally converted to 230v ? Thanks !
Polivoks synth problem, static audio tone and VCO´s totally detuned
2008-05-16 by ambrosia800
Hi, I am the owner of a Polivoks, that has some problems now. This started while playing with the unit, when it was switched on and was on hold for a while.
Delta Labs DL-4 Performer - Service manual wanted
2008-05-16 by mrjdevries
Does anybody out there have this delay? Mine is kinda working, but needs attention. Much regards Mike
ARP Omni: Switches wanted
2008-05-12 by Malte Rogacki
The Omni is coming along very nicely so far. I found a blown transistor in the sustain circuit that prevented very short sustain times. Works now. It looks
Re: Arp Odyssey suddenly not sounding
2008-05-12 by paulmoerke
... all that ... results ... bus and Gate ... makes no difference ... does but at ... go a little faster ... affects the tuning of ... keyboard is cleaned ...
Re: [vintagesynthrepair] Re: Roland RS-09 problem
2008-05-10 by Philip
Try: http://www.datasheetarchive.com/pdf/2948659.pdf ... __________________________________________________________ Sent from Yahoo! Mail. A Smarter Email
Re: The ARP Omni and the infamous tantalum caps
2008-05-10 by gerryrdahl
Hi, I have replaced caps on the Omni 2 and it had electrolytics in it. Also the Quadra has electrolytics as well. Each time I have replaced them the new caps
RE: [vintagesynthrepair] The ARP Omni and the infamous tantalum caps
2008-05-10 by Malte Rogacki
... The negative end of the cap sits at -15V. I hate to admit that I somehow messed up my measurements (or actually: I did them at the wrong place; I measured
Re: [vintagesynthrepair] Re: Roland RS-09 problem
2008-05-10 by GB
... This sounds like the kind of thing that would be pretty easy to build out of a PLD or FPGA on a board that has a 40-pin layout. Cottage industry awaits.
Re: Roland RS-09 problem
2008-05-10 by eggwheatis
Well looks like I ve fixed it...just burning it in for a hour or two now..it was a bad connection from IC201 which is one of the S10430 Divider IC s. Basically
RE: [vintagesynthrepair] The ARP Omni and the infamous tantalum caps
2008-05-10 by Brian Davies
Hi I ve been watching this thread with great interest. One thing no one has mentioned is to what is the negative end of the tant cap returned? If it is the
The ARP Omni and the infamous tantalum caps
2008-05-10 by Malte Rogacki
After a somewhat closer inspection and some measurements I believe to have gotten a better grasp on the infamous tantalum cap problem for the gating circuits.
Re: Roland RS-09 problem
2008-05-10 by eggwheatis
Update: Its considered to be C#4 in the manual not 1..also just looking at the schems it points towards a S10430 Chromatic Divider IC...which is bad as that
Roland RS-09 problem
2008-05-09 by Philip
Ok I switched on my Roland RS-09 tonight and it has a definite problem now...I have C# playing all the time fairly loudly in the background..It relates to C#1
RE: [vintagesynthrepair] arp omni
2008-05-09 by Malte Rogacki
If you do a google search for ARP Omni-2 service manual you ll get a number of hits for a PDF file. The quality isn t the best, though. -- Malte Rogacki
Re: [vintagesynthrepair] tips for arp sliders?
2008-05-09 by Roy J. Tellason
... I believe the stuff you refer to here is foam rubber , which does indeed deteriorate and leave a rather nasty residue as it ages... (Snip) ... Perhaps a
[vintagesynthrepair] Re: arp omni
2008-05-09 by Malte Rogacki
... The switches are momentary switches that drive a 4013. I guess this could be the likely culprit here. -- Malte Rogacki gacki@gacki.sax.de ... Don t forget
Re: arp omni
2008-05-09 by Tom Russell
What s sdrawkcab ?
Re: arp omni
2008-05-09 by scott frye
I agree on the tantalum issue. You cannot over-volt them. And, DO NOT put them in sdrawkcab they smoke and get wicked hot Scott Frye AudioFixation Consumer /
Re: arp omni
2008-05-09 by scott frye
If the switches in question are capacitive touch you may want to replace the IC / transistor that gets that signal. I dont have a schematic so I m only
RE: [vintagesynthrepair] arp omni
2008-05-09 by Mark Wallis
Hi again folks. Does anybody have schematics for the ARP Omni-2? Best wishes, msw ... _________________________________________________________________ All new
Re: [vintagesynthrepair] tips for arp sliders?
2008-05-09 by Arto Koivisto
... Avoid at least the foamy kind of packing cushion material, or whatever it is called (I m not a native english-speaker thus am lacking vocabulary on these
Re: [vintagesynthrepair] arp omni
2008-05-09 by Malte Rogacki
Differences for the phaser circuitry between ARP Omni and Quadra: They are completely and totally different designs. The Quadra uses a 14-stage paheser built
RE: [vintagesynthrepair] arp omni
2008-05-09 by Peter Brown
all this ARP Omni chatter has inspired me to scan & post the entire service manual on my site: http://peterunderdog.com/arp/omnimanual.pdf PB p.s., i love
RE: [vintagesynthrepair] arp omni
2008-05-08 by Mark Wallis
Hi Folks, This would be my first post. I thought I d jump in now as you re discussing ARP Omnis. My main thing is classic electro-mechanical gear, Hammonds,
Re: [vintagesynthrepair] arp omni
2008-05-08 by Roy J. Tellason
... Do you figure that they re from a specific time period, the ones that are going bad? ... -- Member of the toughest, meanest, deadliest, most unrelenting
Re: [vintagesynthrepair] arp omni
2008-05-08 by Philip
As I think I ve said before the bulk of my electronics experience is in fixing logic circuits, PSU s and monitors in archaic arcade video games,like Space
Re: [vintagesynthrepair] arp omni
2008-05-08 by Roy J. Tellason
... Taken offlist... -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that
Re: [vintagesynthrepair] arp omni
2008-05-08 by Malte Rogacki
... How much? -- Malte Rogacki gacki@gacki.sax.de ... Don t forget to TURN ON THE SYNTHESIZER. Often this is the reason why you get no sound out of it. (ARP
Re: [vintagesynthrepair] arp omni
2008-05-08 by Malte Rogacki
... Well, the power supply decoupling caps in the various ARP synths are rated 35V and put across +15V and -15V to ground; and I ve seen them fail regularly
Re: [vintagesynthrepair] arp omni
2008-05-08 by Roy J. Tellason
... That had to have one of the more bizarre setups I ve ever seen. Right now I m talking to a guy who wants that manual, but we re still talking and have
Re: [vintagesynthrepair] arp omni
2008-05-08 by Malte Rogacki
... Let s see: one 4520: did not properly divide down on a single pin (all other pins worked) one 4069: no output on some pins three 4025: no output or
Re: [vintagesynthrepair] arp omni
2008-05-08 by Philip
The connectors are two thin membrane strips poking out of a slot in the control panel metal work...very easy to break, very awkward to unplug, plug in..and if
Re: [vintagesynthrepair] arp omni
2008-05-08 by Philip
welllll....true..but I have to say Arp omni s appear to particularly bad I ve been watching ebay for sometime...the last 4 or 5 on there have bee listed as
Re: [vintagesynthrepair] arp omni
2008-05-08 by Roy J. Tellason
... How much else that s out there in terms of electronics that s 30 years old do you know of that s still working well? :-) -- Member of the toughest,
Re: [vintagesynthrepair] arp omni
2008-05-08 by Malte Rogacki
... I don t exactly recall the panel connection (it probably has been over 10 years since I last looked at a Quadra). I only know the connection used for the
Re: [vintagesynthrepair] arp omni
2008-05-08 by Roy J. Tellason
... I don t know, though I do see many references to them being a problem in older equipment, Tektronix scopes being one of them. Most of the time it s
Re: [vintagesynthrepair] arp omni
2008-05-08 by Malte Rogacki
... Given the number of smoked tantalum caps I ve seen in various synths I m simply not sure if the caps produced about 30 years ago might not have a more
Re: [vintagesynthrepair] tips for arp sliders?
2008-05-08 by Philip
Some sort of black felt cloth? ... __________________________________________________________ Sent from Yahoo! Mail. A Smarter Email
Re: [vintagesynthrepair] arp omni
2008-05-08 by Philip
I forgot to say I got interested in the Omni after hearing my Quadra..I m guessing they sound similar? Or am I way off? I thought it might be cheap alternative
tips for arp sliders?
2008-05-08 by Johnny
i wanted to see what people do for preventing junk from getting inside new sliders on synths like the arp odyssey. i was thinking of cutting some slits in some