Silent key problem
2013-11-13 by <pyjamagroove@...>
The saga continues....One of my keys (D4) seems to produce much more silent sound on some presets like Electric Piano or Guitar. When I cycle it some voices
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Re: [POSSIBLE SPAM] Re: [yamahacs80] Cs80 voicecard strange behavior..
2013-11-12 by Laurie Curry
I am trying to recall, but as far as level adjusters, the top two were noise and vcf level the next was sine level the next overall vca level and the bottom
Re: [yamahacs80] RE: Cs80 voicecard strange behavior..
2013-11-11 by Robert Stewart
Cool. Glad it worked. The pots on these things dry out and give intermittent contact, so a good clean every few years tends to help. B ... Cool. Glad it
RE: Cs80 voicecard strange behavior..
2013-11-11 by <pyjamagroove@...>
Well, I did not know which one either so I´ve cleaned all of them. And it worked like a charm! Thanks for the advice Bob. ... Could be one of the VCA
Re: [yamahacs80] Cs80 voicecard strange behavior..
2013-11-11 by Bob Stewart
Could be one of the VCA potentiometers. Can t remember off the top of my head which one is the overall level VCA, but the pots are at the opposite end of the
RE: Cs80 voicecard strange behavior..
2013-11-11 by <pyjamagroove@...>
Thanks for response. The thing is there is no sound at all at first ant when it slowly comes back, it s all at once (noise and oscillators), so it can t be the
Re: [POSSIBLE SPAM] [yamahacs80] Cs80 voicecard strange behavior..
2013-11-11 by Laurie Curry
the lower controls on the front of the M cards are level adjustments for different amp stages... there is one for noise level, one for VCF level, one for Sine
Cs80 voicecard strange behavior..
2013-11-10 by <pyjamagroove@...>
There is a strange issue with my voice card 1 on channel 1. After turning the synth on it is completely mute. But after a warmup and some gymnastics (
RE: Need help with no sawtooth wave on voice 1 channel 1 card and one G key aftert.
2013-11-10 by <pyjamagroove@...>
Well, it was the waveshaper after all. Now that voice is rocking saw again. Thanks everyone. ... Sorry, but I m no electronics guru neither. The reference for
Re: [yamahacs80] IC 4051 on TSB
2013-10-22 by David Rogoff
... From the circuit board layout ( http://therogoffs.com/cs80/manuals/CS80_Service_Manual/12%20-%20TSB%201%20Circuit%20Board%20&%20Wiring.jpg ) and the
IC 4051 on TSB
2013-10-22 by <martinjboisvert@...>
Greetings, I am in the process of changing out the IC 4051 s on the TSB boards and during the de soldering process a trace got sucked up! It is the trace that
Re: [yamahacs80] RE: CS80 tuning
2013-10-17 by David Rogoff
Time for my semi-regular posting on stealing voice-card parts. If you need a VCO or VCF, etc, it s pretty easy to steal parts from one or both of the 8th voice
RE: CS80 tuning
2013-10-17 by <musicalfix@...>
Thanks, it s great that you have these and other such ICs. It seems these VCOs can be in a state where they are working but not able to meet the specs. I had
RE: RE: Re: [yamahacs80] CS80 tuning
2013-10-16 by <synthparts@...>
So the problem is with the IG00153 VCO chips you think? I still have a few in stock if you want any... ... Hi. Thanks for your reply. On your advice I did
RE: Re: [yamahacs80] CS80 tuning
2013-10-15 by <musicalfix@...>
Hi. Thanks for your reply. On your advice I did replace the caps on the S/H board which got rid of some unwanted crackling. Then went back and re-calibrated
Re: [yamahacs80] CS80 tuning
2013-10-04 by rikard.latvala@...
Hey, Have done some fresh calibration recently, have you checked the voltage of the K terminals on the SH board (K1-8 near the CA3140T) ? should be 125mV on
CS80 tuning
2013-10-03 by <musicalfix@...>
Hi all, I have a question regarding the CS80 tuning. I have followed the service manual instructions, i.e set upper octave pitch, then scale with the lower
Re: [yamahacs80] the continuing saga of my CS-80 repair.. blowing fuse
2013-10-02 by David Rogoff
... On the CS80, these also power the TKC and two TSB boards and the KBCs. I spent a lot of time (some detailed in posts here) tracking down a short. It can
Re: [yamahacs80] RE: the continuing saga of my CS-80 repair.. blowing fuse
2013-10-02 by Martin Boisvert
Thank you very much for the swift response, I am currently in the process of recapping the sensitive parts of my CS80... I will follow your instructions and
Re: [POSSIBLE SPAM] [yamahacs80] RE: the continuing saga of my CS-80 repair.. blowing fuse
2013-10-02 by Laurie Curry
3 fuses in mine ... From: martinjboisvert@gmail.com To: yamahacs80@yahoogroups.com Date: 10/02/13 02:29 Subject: [POSSIBLE SPAM] [yamahacs80] RE: the
Re: [yamahacs80] RE: the continuing saga of my CS-80 repair.. blowing fuse
2013-10-02 by rikard.latvala@...
Hey, I haven´t serviced a CS-80 yet, but on the CS-50 the +8,5 and -6,5 power the KAS and SH board. Are your CS-80´s recapped and have all new logic
RE: the continuing saga of my CS-80 repair.. blowing fuse
2013-10-02 by <martinjboisvert@...>
I am having the same problem... even worse some idiot had even put a 2.5A fuse instead of the 500mA and it still blows! Did you find out where it shorted, is
Re[2]: [yamahacs80] cs-50 vcf calibration
2013-09-18 by rikard.latvala@...
Hey, After some research what they meant by R51-52 was the boards and not resistors. Found FH and FH points on the R2 ( in the CS-50 and maybe 60 ??) BOARD ;)
Re: [yamahacs80] cs-50 vcf calibration
2013-09-18 by Robert Stewart
Sorry... Misread your Email. On the CS50 the___*card*_ you need to look at is R6 I believe. Terminals FH, and FL B
Re: [yamahacs80] cs-50 vcf calibration
2013-09-18 by Robert Stewart
Hi It s not talking about resistors at all. R51, and 52 are boards. They are the register circuits for the two voices. R51 for the top row, R52 for the bottom
cs-50 vcf calibration
2013-09-18 by <rikard.latvala@...>
Hey, I am working on a CS-50 that had several problems with the trimpots on the M boards. I have installed new ones and replaced them all with multiturn one s.
Re: [yamahacs80] WTB: Yamaha CS-80/GX-1/EX-1/EX-2/FX-1/FX-3/SY-1/SY-2 music stand holder spare parts
2013-09-14 by David Rogoff
Mitchell, I had the same problem with my CS80 several years ago. I ended up making one that looked ok and would have been great if I had a band-saw (or just
WTB: Yamaha CS-80/GX-1/EX-1/EX-2/FX-1/FX-3/SY-1/SY-2 music stand holder spare parts
2013-09-14 by Mitchell Manger
I own a Yamaha EX-2, and the music rack/stand/rest holder piece is missing from it. The music stand holder is the round nickel-plated piece in which the music
Re: [yamahacs80] Easy access to the rear jacks on a CS80???
2013-09-05 by Martin Boisvert
Thank you David for the detailed answer, I will get going Slowly through the process. On an other note, one of the rubber aftertouch sensor is missing
Re: [yamahacs80] Easy access to the rear jacks on a CS80???
2013-09-05 by David Rogoff
... Good luck Martin! Yep - getting to stuff behind the card cage is a pain. First thing I d do it remove the top by unscrewing the hinges (which is also
Easy access to the rear jacks on a CS80???
2013-09-05 by Mooseheads
Greetings to all, I am currently at the early stage of restoring a really beat up CS80. It has many issues one of them being that the HI/LOW switch in the
Vax77 going away :(
2013-09-02 by <david@...>
http://www.infiniteresponse.com Infinite Response will cease manufacturing the VAX77 on October 1, 2013 and the current production run is completely sold out
RE: How did Vangelis do it?
2013-08-30 by <jussi.kulomaa@...>
The "phasing" sound is from when the two banks / oscillators are really close together in tune in the same octaves. But not perfectly in tune, in
CS-50 on eBay
2013-08-24 by Leo Johns
Leo in Kansas here. I lurked the group for years, and used its advice to extensively service my CS-80.I ended up selling it to Texas last year via a connection
Re: [POSSIBLE SPAM] Re: [yamahacs80] Re: How did Vangelis do it?
2013-08-23 by Nigel Cruickshank
Hi Laurie, I agree, I don t think the phasing effect is coming from the reverb but from the poly brilliance/resonance as you say. I think there are a few
Re: [POSSIBLE SPAM] Re: [yamahacs80] Re: How did Vangelis do it?
2013-08-23 by Laurie Curry
any chance you are mistaking the polyphonic aftertouch brilliance shifting between fingers as the phasing you hear in the verb? (different filtercutoffs per
Re: [yamahacs80] Re: How did Vangelis do it?
2013-08-23 by Nigel Cruickshank
Thanks PJGroove. I think the patch could still use some tweaking but when I move away from the settings I posted it loses that modulated phasing. The Blade
Re: How did Vangelis do it?
2013-08-23 by pyjamagroove
Great stuff. Thanks for posting. Are you sure about the filter settings? (pretty open). Will try anyway. That s a beautiful CS80 you got there btw.!
Re: [yamahacs80] How did Vangelis do it?
2013-08-23 by Nigel Cruickshank
I will post the patch images to the photos area
Re: [yamahacs80] How did Vangelis do it?
2013-08-23 by Nigel Cruickshank
Try this out. To me the Vangelis sound has the highs accentuated by EQ or is maybe more brilliant. It was professionally recorded so hard to say which. Here
Re: [POSSIBLE SPAM] [yamahacs80] Re: Help my CS80, please
2013-08-22 by Laurie Curry
it could be the vcf master level adjustment or somewhere before that in the filter section.... David ? ... From: jesus To:
Re: Help my CS80, please
2013-08-22 by jesus
... Hi, Thanks for the response. The pulse, sawtooth or noise do not go through....only the sine wave. What could it be?
Re: [POSSIBLE SPAM] [yamahacs80] Help my CS80, please
2013-08-22 by Laurie Curry
David R has it right.... if noise works and square/ saw don t, it is most likely between the oscillator chip and the waveshaper.... If noise also doesnt
Re: [yamahacs80] Help my CS80, please
2013-08-21 by David Rogoff
... Could be simple. Maybe not :). Just to be clear: you re saying one of the 8 voices in Channel I doesn t work right. But that voice does work for since
Help my CS80, please
2013-08-21 by jesus
Hi, group! My otherwise awesome-looking/working has lost one of its 8-voice polyphony on the upper row. The only remaining thing is the sub oscillator (sine
Re: [yamahacs80] Re: How did Vangelis do it?
2013-08-21 by Nigel Cruickshank
Hi Kent, That could well be it. Pity I didn t get you to implement the mod while you had my 80. How difficult would it be to perform if I were to give it a
Re: How did Vangelis do it?
2013-08-21 by blchrr@...
Hi Kent, Whats the details of the dual LFO mod? When you say reprogramming the presets, i guess that would mean changing multiple resistors to different values
Re: [yamahacs80] How did Vangelis do it?
2013-08-21 by Kent spong
Vangelis would get Dusty Miller to reprogram the presets to sound the way he liked, there was also the duel LFO mod he had fitted to many of his 80 s. You may
Re: [yamahacs80] How did Vangelis do it?
2013-08-21 by Nigel Cruickshank
I had a fool around today and I don t think that sound is specifically coming from the reverb. I found touches of that sound by finely tuning the ring mod, sub
Re: How did Vangelis do it?
2013-08-21 by blchrr@...
Eventide are great for huge reverbs, try black hole on your Space pedal. But its true, there s nothing quite as lush as a Lexicon 224. UAD have the 224