Re: [vintagesynthrepair] Re: Roland D5 top 5 keys gone
2008-07-15 by GB
... Aw, and I was going to guess it was beer...
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Re: Roland D5 top 5 keys gone
2008-07-15 by aent440
Hi, the mystery is over, the keyboard flexible PCB (and much of the galvanised chassis) had been corroded by cat urine! I was able to bypass the corroded
Re: [vintagesynthrepair] Burr Brown PCM55HP needed?
2008-07-14 by GB
... I have a PCM54HP... GB
sequential drumtraks
2008-07-14 by steve sloan
Wondering if anyone might have ideas on this: A Drumtraks I ve inherited works fine [all sounds trigger, etc] except there is no kick drum. I ve tried
Re: Roland D5 top 5 keys gone
2008-07-14 by aent440
Hi Fran, Thanks for the quick reply. I think I am going to have to bite the bullet and strip out those offending keys to check that region out. Cheers, Andrew.
Re: Roland D5 top 5 keys gone
2008-07-14 by narfman96
Andrew, The D5 has a membrane style plastic film for key contacts. Have you checked for dirt and/or corrosion between the film layers? I can look at the D5 in
Roland D5 top 5 keys gone
2008-07-14 by aent440
Hi, the top 5 keys (intermittently) fail to sound on my D5. I can always see a time multiplexed signal for each key on the main board and can just about see a
Burr Brown PCM55HP needed?
2008-07-13 by narfman96
I have a Kawai K5 and one DAC has a distorted output that s 4 to 5 times as loud as the other channel. The sound is analog. By adjusting all the patch
Polysix D8048C (CPU) for sale
2008-07-10 by gil_we
60$ including shipping. Please write to gil_we(at)yahoo.com
I have some CEM3396 chips for sale
2008-07-10 by gil_we
50$ each (including shipping). There are for Matrix 6 and 6R only. Please write to gil_we(at)yahoo.com
Re: Seeking Arp Odyssey v3 key
2008-07-10 by bazricles
Hi Malte, That s awsome, thanks so much. I ll email you privately about this. Cheers! Barry ... carcass ... components from ... way to ... why you
Re: [vintagesynthrepair] Seeking Arp Odyssey v3 key
2008-07-10 by Malte Rogacki
... I have one and I am willing to part with it. This is coming from an ARP Odyssey Mk3 with a partly smashed keyboard; I substituted the whole keyboard with
Re: Seeking Arp Odyssey v3 key
2008-07-10 by bazricles
Hi Martin, Thanks for the offer! Unfortunately I m pretty sure the minimoog keys won t fit. The v3 Odyssey has quite a strange keyshape due to their
Re: Seeking Arp Odyssey v3 key
2008-07-10 by martinreuter
... Hi Barry, I have some Minimoog keys. I think that the old moog has the same keys, but I am not sure. Are your keys really white ore do they have a touch of
Seeking Arp Odyssey v3 key
2008-07-10 by bazricles
First of all, a big hello to everyone on this board! I m currently attempting my first synth restoration; a late version Arp Odyssey. So far, I ve managed to
Board 1 works again!
2008-07-05 by martinreuter
Thank You all!!!! I changed the ICs + the OpAmps of the oscillator board and now it runs. Now i have to repair my 2nd board1 - all oscillators are working, bit
Re: [vintagesynthrepair] SH-101
2008-07-05 by Mike de Vries
You can internally tune the 101 down (or up an octave).. Check out the service manual. ... From: eggwheatis Subject:
Re: [vintagesynthrepair] Re: Minimoog Oscillator-Board will not work suddenly
2008-07-05 by Gabriel Lecuona
do as best as you can to replace all the parts on a board you are working on with as many readily available parts as you can. what i would look for if audio
Re: SH-101
2008-07-05 by eggwheatis
... Just to add to the diagnosis...I have another SH-101 so I tested playing the bad one using CV and Gate out of the good one. It still pays an octave too
SH-101
2008-07-04 by eggwheatis
Ok here s one for you...just picked up an SH-101..it s playing an octave higher than it should...not looked at much yet. Any ideas? The range and the octave
Re: Minimoog Oscillator-Board will not work suddenly
2008-07-03 by martinreuter
... No, i bought new chips and the problem is the same. What´s with the OpAmps 741? Shall i change them? Some of they have a red dot - what means this? By the
Re: [vintagesynthrepair] Re: Minimoog Oscillator-Board will not work suddenly
2008-07-02 by Roy J. Tellason
... I remember SG3821 rather than GG , anybody know who makes those? And yes, you can substitute one for the other, they re pretty much equivalent. Also
Re: Minimoog Oscillator-Board will not work suddenly
2008-07-02 by thirteentech
The 3821 is similar to the CA/LM3046 NPN transistor array, and can be substituted. Both chips were used in the Minimoog. If you just swap the two 3821 s with
Re: Minimoog Oscillator-Board will not work suddenly
2008-07-02 by martinreuter
... Uups.... I can only see two 3821 Chips - they are labeled GG 3821N 7323 . The other 8 Chips seem to be all 741 OpAmps - is this right? They are looking
Re: Minimoog Oscillator-Board will not work suddenly
2008-07-02 by thirteentech
Probably the top CA3046 has failed on the VCO board. You can swap the 2 of them to see if the fault changes, but BE CAREFUL: they are plugged in in opposite
Re: [vintagesynthrepair] Minimoog Oscillator-Board will not work suddenly
2008-07-01 by Gabriel Lecuona
i would just change all of them. i had a transient problem on the arp omni and had to change out every single electrolytic for tantalum. a daunting task but
Minimoog Oscillator-Board will not work suddenly
2008-07-01 by martinreuter
Hi everybody, my minimoog #3271 with R.A.Moog boards strikes. In this afternoon it worked very well, but now, four hours later I switched it on and can not
Re: Replacement keyboard pcb for Roland JD-800 ?
2008-07-01 by sonarguitar
... WOW! This sure LOOKS like a simple question, huh? But, in reality, this is a touchy subject because Roland DOES list and sell the green flexable PCB that
Replacement keyboard pcb for JD800 ?
2008-06-29 by gil_we
Does anyone sell replacement keyboard PCBs for Roland JD800 ? Does Roland still sells parts for it ? Thanks
black keytop replacements: Baldwin Elec. Harpsichord.
2008-06-26 by Brendan Haley
I have Baldwin Electric Harpsichord (two actually), and it needs 3 of the black sharps keytops replaced. They appear to be plastic and glued to wooden key
Re: Broken keyboard PCB traces
2008-06-25 by inocencio66
The later replies have been apreciated, but the problem is fixed since my post #3854. I used a Stanley knife and wirewrap wire. The upper tracks (by the carbon
Re: Moog Opus 3 Filter Section
2008-06-24 by cea_six
i found out that on my keyboard i had the preset/variable switch broken off and was in the preset mode. so the filer section does work it just needed to be
Re: Broken keyboard PCB traces
2008-06-24 by thirteentech
... Try a conductive paint pen.
Hello
2008-06-24 by David
Hi I don’t remember the yahoo group and the VERY NICE guy who said to me to put down the contrast level on my k2500R for solution to my problem (sometimes I
Re: Broken keyboard PCB traces
2008-06-24 by jahg88
... near ... copper ... there´s ... connector ... new ... bond ... any ... Just use a sharp X-acto blade a carefully scrape tha solder mask of down to the
P10 Sequencer
2008-06-23 by fsimon100
My P10 has a single 4Kx8 EPROM that operates off 5v only and my schematic show three 2708 EPROMs 1Kx8 that run +12,+5, and -5. Does anyone know the firmware
Re: [vintagesynthrepair] Moog Source mods/sync
2008-06-23 by Mike de Vries
Really! thanks for pointing that out.. thats a pretty fundamental flaw. I ve gotten a bit fustrated with my Source.. I love it s sound, but have no real
Re: [vintagesynthrepair] Moog Source mods/sync
2008-06-22 by Philip
Hi Mike, I ve heard that this is not a great kit...sure it gives you midi, but it causes pitch problems when editing live, a serious trade off for me. Philip.
Re: [vintagesynthrepair] Moog Source mods/sync
2008-06-22 by Mike de Vries
oops.. I meant Encore http://www.encoreelectronics.com/ (Arcsound sells bushings... doh) ... From: Mike de Vries Subject:
Re: [vintagesynthrepair] Moog Source mods/sync
2008-06-22 by Mike de Vries
I m in exactly the same boat as you.. I was considering about getting the arcsound modification, which gives it good midi specs + an arpeggiator that
Re: [vintagesynthrepair] Re: Korg Delta Strings Only Issue
2008-06-22 by Stephen Jones
Yes, the synth section sometimes works for a few minutes after turn-on, or sometimes doesn t, and then the level drops to almost nothing, and sometimes pops
Re: [vintagesynthrepair] Re: Korg Delta Strings Only Issue
2008-06-22 by Frank Simon
I may have a similar issue with my Korg Trident Mk II. Hopefully your post will help me out. When you stated synth section dropping out, are you saying it
Jean-Marie CAYLA is out of the office.
2008-06-22 by jean-marie.cayla@aems.net
I will be out of the office starting 20/06/2008 and will not return until 27/06/2008. I will respond to your message when I return
Moog Source mods/sync
2008-06-22 by Philip
Hi, decided to dig my Moog Source out and get it fixed..wow..forgotten how good it sounds! Had a read up on it on the net and discovered there were two
Re: Korg Delta Strings Only Issue
2008-06-22 by thirteentech
I think I have repaired one of the 3 deltas that have come into the workshop with the synth section dropping out. I will have to let it run for a few hours to
Korg Sigma service notes or service manual
2008-06-18 by mrjdevries
Hey all. Anybody out there got a copy of these? Regards Mike
Re: ARP odyssey noise generator?
2008-06-13 by Johnny
i forgot to mention it s the MK 1. i already have the zeners for the mk 2 mod but i don t think i can make that mod on the mk 1. thanks anyway, johnny ... that
Re: ARP odyssey noise generator?
2008-06-13 by balderson04
This might help: http://www.arpodyssey.com/odynois.gif This is basically the MkII+ noise circuit, or so I understand. Not sure how easy zener diodes are to
Re: ARP odyssey noise generator?
2008-06-12 by Johnny
neither are noise . the pink noise is just a slightly different tone of the weird waveform i mentioned before. i messed around a little bit circuit
Re: ARP odyssey noise generator?
2008-06-12 by balderson04
Hi, Johnny: The service manual s description of the noise circuit mentions that Q9 is specially chosen for optimum avalanche characteristics , so it may be