Re: [yamahacs80] CS-80 keybed aftertouch resistors
2011-05-20 by Max Fazio
Hi Andy Yes, the FSR , I was referring to the aftertouch sensors anyway...just I find it odd that yamaha is reporting three resistor symbols for each key on

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2011-05-20 by Max Fazio
Hi Andy Yes, the FSR , I was referring to the aftertouch sensors anyway...just I find it odd that yamaha is reporting three resistor symbols for each key on
2011-05-20 by Max Fazio
Hi Laurie yea, I mean, what if one sensor breaks? Could I be able to replace them? Also, my only doubt is that on the diagram it looks like there are three
2011-05-19 by Andrew Kirkby
Hi Max, Are you talking about the FSR (force sensing resistor)? Those are the key and aftertouch sensor... Andrew ... Andrew Kirkby (e)
2011-05-19 by Laurie Curry
are they really variable??? I thought they were fixed resistors Max...and the carbonised rubber bridge piece squished down to bring them all into the circuit.
2011-05-19 by Max Fazio
Hi all With your kind help , I need to know something about the variable resistors put in the keybed and bound to the aftertouch: according to the big diagram
2011-05-18 by Wavecomputer360
Get yourself an inoperative YC-45D organ. Kent refurbishes/fixes ribbons as well, I believe. Stephen ... From: Fernando Zarone To: yamahacs80@yahoogroups.com
2011-05-18 by Fernando Zarone
A friend of mine is looking for a working, good condition ribbon controller. His CS 80 needs a new one. Any for sale on the Net? It s not me. if you have
2011-05-18 by steve kodnel
FYI - I have sold quite a few components out of my CS50. Therefore, there is no turning back now. So if anyone needs anything out of my CS50, let me know.
2011-05-17 by jkjelec@comcast.net
I had this problem with a CS-60. Several of the voices were leaking like this. I had changed all of the relevant parts that could result in sample and hold
2011-05-16 by Mike
Do you have the coarse and fine tune pot? How about the TKC board? I need an optocoupler too, but can remember if there is another one on the CS-50 that
2011-05-16 by dzlvs8@yahoo.com
Andy, So far I have sold a few sliders, two voice cards, the PRA board and a few other odds and ends. If you are still interested in some items, let me know
2011-05-15 by kirkbyte@optusnet.com.au
Hi Steve, I m keen, i might also need some fader caps and other bits if you have them? Andrew
2011-05-15 by steve kodnel
If anyone wants a voice card from a Yamaha CS-50, I have one for sale. It works perfect. I m not sure how much to ask for one but I am going to say $300
2011-05-14 by lucidsound
Good grief, did I write that? If I did I m glad someone preserved it, my memory is not what it was. I m still interested to know if anyone else has this
2011-05-14 by jkjelec@comcast.net
OK, this is what I found: I was thinking that it had to be this, that I cut and saved from AH (I think) a few years ago: Seems the SH card collects debris
2011-05-13 by Andrew Kirkby
S- I am having this same fault on a CS60. Will investigate further and try track down the fault. AK ... Andrew Kirkby (e) kirkbyte@optusnet.com.au (m) 0416 000
2011-05-13 by skkatter
This reminds me, my CS60 is stuck in Sustain II mode even when the switch is switched to Sustain I. I don t think the switch is at fault, is there anything
2011-05-12 by lucidsound
I understand that part of it, because in Sustain 1 the oscillator voltage is held by the capacitor on the SH card, whereas in Sustain II, the key assign is
2011-05-12 by Laurie Curry
the secret to understanding the sustain switches is this..... When you use sustain 1 , the modulation sources and performance filters are interupted from the
2011-05-12 by lucidsound
Has anyone else come across the quirk whereby if using long release times in Sustain Mode 1, the oscillator pitch drops slowly when the notes are released?
2011-05-11 by Fernando Zarone
Thank you for the reply, David. Mike, I had understood the tone of your reply being due to the mood of a bad day (everybody has sometimes). That s why I did
2011-05-11 by David Rogoff
Mike, thanks for your message. We ve had a great group going here for almost 7 years now with basically zero spam, trolling, or other anti-social (digital?)
2011-05-11 by Mike
Sorry if I came off as abrasive yesterday... just about everything I was working on that could go wrong did. The bulbs posted on e-bay are rated for 10,000
2011-05-10 by Fernando Zarone
Mike, sincerely ) would buy the bulbs, but would like to know: have they been tested for long time? i mean, are they reliable in the long run? Is it convenient
2011-05-09 by Mike
Hey look, I m not trying to judge you here, but you ve a Doctor, you ve got a Moog System 55 as well a CS-80 which hardly puts you in the category of starving
2011-05-09 by Fernando Zarone
Matching the waveforms to a previously calibrated board is what I wanted to do. I tried it and it does work, being also easy to do. And removing the top
2011-05-09 by David Rogoff
... Here s what I did. 1) removed top panel so I could get to back of M-cards without removing them from (raised) card cage 2) unsoldered all TRG wires to M
2011-05-09 by Andrew Kirkby
Hello all, I m about to restore some M boards and i have found that the trimmers are in a terrible state. Does anyone have a suitable, tested replacement part
2011-05-09 by Fernando Zarone
Hi all, after the long trip through overhauling my CS 80, I got to the point of VCF/ VCA calibrations. David, I appreciated your idea of connecting wires to
2011-05-08 by kirkbyte@optusnet.com.au
Steve, At least then you don t have almost endless boards and sockets to deal with (CS80 can be quite daunting, especially the top side circuits) The CS50/60
2011-05-08 by kirkbyte@optusnet.com.au
Massimo, Thanks so much for this. I am about to restore a CS60 and this manual will be put to good use :) AK
2011-05-08 by dzlvs8@yahoo.com
Actually my instrument is worth a lot less. I havent been blessed with a cs80 yet. Instead I have two CS50 s. By the way, has anyone ever been able to add
2011-05-08 by kirkbyte@optusnet.com.au
Hi Steve, I am using Mill-Max gold plated sockets for all CMOS. With decoupling capacitor they are quite expensive. I would avoid using cheap sockets to be
2011-05-08 by David Rogoff
... Massimo, thanks for this. Have you seen all the manuals I ve scanned / collected / posted here: http://therogoffs.com/cs80/ David [Non-text portions of
2011-05-08 by David Rogoff
... I got some of the sockets with caps a few weeks ago. When I redid my CS80 a few years ago, I just soldered in caps myself, which was a lot of work. If I
2011-05-08 by steve kodnel
Alright, my order is about ready, but I am thinking I should probably ask this question in order to take cut my order price down by 90%. I think it was old
2011-05-08 by Massimo Rosati
Special thanks to a good friend of mine who did an amazing job on high resolution scans of a few original service manuals I have. The hi-res scans included
2011-05-08 by Andrew Kirkby
No problem :) ... Andrew Kirkby (e) kirkbyte@optusnet.com.au (m) 0416 000 070 [Non-text portions of this message have been removed]
2011-05-08 by dzlvs8@yahoo.com
you da man. Thanks! ... From: Andrew Kirkby To: yamahacs80@yahoogroups.com Sent: Sat, May 7, 2011 23:54:05 GMT+00:00 Subject: Re:
2011-05-07 by Andrew Kirkby
The 4050 is 296-2056-5-ND ... Andrew Kirkby (e) kirkbyte@optusnet.com.au (m) 0416 000 070 [Non-text portions of this message have been removed]
2011-05-07 by dzlvs8@yahoo.com
Thanks, Andy. I usually get the Texas Instruments stuff too. Im just never sure which numbers mean anything. Also, you forgot one. Do you know what a TI
2011-05-07 by Andrew Kirkby
Hi Steve, It is not stupidity to blame. You are looking for a manufacturer part number which doesn t exist anymore, thus the inability to find it on Digikey s
2011-05-07 by steve kodnel
I am trying to find a couple of parts through Digikey s website but I cant find them because i am fairly stupid. I am trying to find IC21 and IC22 on the KAS
2011-05-05 by dzlvs8
I am looking for clues on where to start with this. I have perfect tune on every key and voice on every octave but ONE voice sometimes want to portamento
2011-05-04 by David Rogoff
Great news! Take the day off :)
2011-05-04 by Fernando Zarone
Now I breathe: everything explained! ... THE BROWN +15 V SENSE wire terminal was pushed away from its contact due to the small flags broken. So, the PSU
2011-05-03 by Fernando Zarone
After long days of patient work, the Aftertouch problem was eventually solved: 1) a SMALL piece of solder shorting two pins in IC 6 of TKC 2) the trace
2011-05-02 by David Rogoff
... Thanks Kent. Yes - it s the 6 screws on the bottom and the screws that hold the handles to the back. Then there s 6 screws in the metal bottom that hold
2011-05-01 by Kent spong
Hi Dave, You need to remove the screws underneath and sides of the case and lift the whole thing out and case then remove the keyboard. ... From: David Rogoff
2011-05-01 by David Rogoff
Hi all. I m finishing up fixing an ill 4VS. I ve got it pretty much working and added CV/Gate inputs to SEM 1-3. The last thing I need to do it clean some of