New file uploaded to yamahacs80
2017-03-05 by yamahacs80@yahoogroups.com
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the yamahacs80 group. File : /EDA
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Re: [yamahacs80] Some CS news
2017-03-05 by Florian Anwander
Hello David ... Get to all the forums and maillists, and you will find them filled with postings about it. Florian Hello David On 05.03.17 06:27 , David Rogoff
Some CS news
2017-03-05 by David Rogoff
Hi all. Just passing on a couple of articles I’ve seen lately that should be of interest. First, an SY-1 on eBay. Currently $400 with no bids and $550
Re: [yamahacs80] Dead CS80 - finding a short
2017-02-28 by Tommy Salsero
Happy End! 2017-02-27 19:23 GMT+01:00 David Rogoff david@therogoffs.com [yamahacs80]
Re: [yamahacs80] Dead CS80 - finding a short
2017-02-27 by David Rogoff
Great news! FYI, when I had similar problems with TSB cap shorts, it was confusing because it didn’t show up as a short to ground. Instead, the short was
Re: Dead CS80 - finding a short
2017-02-27 by pyjamagroove@...
I am happy to announce that my CS80 is fine and working great again. I would like to post a resumé for anybody who will have that problem in the future. 1. My
Re: Dead CS80 - finding a short
2017-02-23 by pyjamagroove@...
No short after all? I have just read that the short beep on the dvm can be capacitors charging! And the overall resistance should be 0,00 Ohm for a short. I
Re: Dead CS80 - finding a short
2017-02-22 by pyjamagroove@...
I have replaced all the remaining tantalums on the TWS and TSB boards. I have checked them all for short - there appears to be none. My synth still shows the
Re: [yamahacs80] Re: Dead CS80 - finding a short
2017-02-19 by pyjamagroove@...
Ok guys, I will rebuild the TWS, TSB and I will report how it went. Seems scary however that one capacitor or ic can cause so much trouble.
Re: [yamahacs80] Re: Dead CS80 - finding a short
2017-02-18 by David Rogoff
Yep - I had this issue with a CS80 a few years ago and eventually traced it to shorts in caps on the TSBs. Definitely should replace all the tantalums on both.
Re: [yamahacs80] Re: Dead CS80 - finding a short
2017-02-18 by Tommy Salsero
Because in my old cs80 the tantalum in tsb cause the short of the rail. changed the tantalum solved my problems, 2017-02-18 18:18 GMT+01:00
Re: Dead CS80 - finding a short
2017-02-18 by pyjamagroove@...
Thanks Tommy, Tsb 1 and 2 were partially rebuilt (there are some old tantalums on tsb2 left I think) with all the IC´s changed. I have never touched the TWS.
Re: [yamahacs80] Re: Dead CS80 - finding a short
2017-02-18 by Tommy Salsero
Capacitors, Sorry! ... Capacitors, Sorry! 2017-02-18 14:43 GMT+01:00 Tommy Salsero : Change all the tantalum condenser from
Re: [yamahacs80] Re: Dead CS80 - finding a short
2017-02-18 by Tommy Salsero
Change all the tantalum condenser from TSB 1 & 2 and TWS. 2017-02-18 2:02 GMT+01:00 pyjamagroove@yahoo.com [yamahacs80]
Re: [yamahacs80] CS-80 for sale in Chicago
2017-02-18 by laurie
interesting ... I ve got a CS-80 for sale in Chicago. it includes a flight case and pedal. I plan on going through it in the next week or so. Asking 15K.
CS-80 for sale in Chicago
2017-02-18 by mborish_2000@...
I ve got a CS-80 for sale in Chicago. it includes a flight case and pedal. I plan on going through it in the next week or so. Asking 15K. -Mike Borish
Re: Dead CS80 - finding a short
2017-02-18 by pyjamagroove@...
I am really confused now... Since the upper and lower rails are shorted I´ve figured that if I disconnect the bottom (+15v) rail from the three brown cables
Re: Dead CS80 - finding a short
2017-02-15 by pyjamagroove@...
So can someone confirm how to find a short of +15v and a ground rail? 1. Disconnect the board from the rails 2. Unsolder E, +15v terminals (should I disconnect
Re: Tuning..again - Transposition gate zeroing?
2017-02-15 by pyjamagroove@...
Hi Michael, Thank you very much for contacting me. I know your blog very well - it has been a great guide and a source of very valuable information to me. I
Re: Tuning..again - Transposition gate zeroing?
2017-02-15 by yahoogroups@...
Hello Pyjamagroove, I see you are trying to calibrate your CS80. A year ago I did a complete calibration of my CS80 from scratch and I am happy that I didn t
Re: [yamahacs80] Re: Dead CS80 - finding a short
2017-02-15 by pyjamagroove@...
Hello, No, I did not change them or even think that they can be an issue because the PSU was working after recap and changing two 1ohm white ceramic resistors
Re: [yamahacs80] Re: Dead CS80 - finding a short
2017-02-15 by Daniel Forró
Picture came. Daniel Forro
Re: Dead CS80 - finding a short
2017-02-15 by npselliott@...
Was unsuccessful linking a picture, will send to you directly.
Re: Dead CS80 - finding a short
2017-02-15 by npselliott@...
Extremely sympathetic regarding the failure! This is just a thought, as more investigation is very likely needed. When you did your PSU rebuild, did you
Dead CS80 - finding a short
2017-02-14 by pyjamagroove@...
So my beloved CS80 died on me after calibration and tuning. To resume: 1. After calibrating BA, KAS and M-boards, 4th M Board 1-channel did not play funky3,
Re: Tuning..again - Transposition gate zeroing?
2017-02-13 by pyjamagroove@...
Changing 4558 IC on the PSU cured it again...All the voltages are back - phew! I won´t turn it again until I find out what is killing my PSU. Could it be the
Re: Tuning..again - Transposition gate zeroing?
2017-02-13 by pyjamagroove@...
A little update: 1. Recapped the PSU. - still bad - showing 7,4V instead of 15V for example. 2. Changed the two 1ohm ceramic resistors - helped ! I could
Re: Tuning..again - Transposition gate zeroing?
2017-02-12 by pyjamagroove@...
Well, it got even better. I´ve tried to fond a possible short and the only board except of M boards I have removed was the BA board (4.0V adjustment). I ve
Re: Tuning..again - Transposition gate zeroing?
2017-02-12 by joachim.milson@...
The issue you re describing is rather strange. It only impacts master board I-4. But what is really weird is that it only happens when one of the last four
Re: [yamahacs80] Another one of my videos...
2017-02-11 by Phil a
Thanks. Phil On 11 February 2017 at 21:45, noddyspuncture@hotmail.com [yamahacs80]
Re: [yamahacs80] Another CS80 vid...
2017-02-11 by Florian Anwander
Which resonator is this?
Another CS80 vid...
2017-02-11 by noddyspuncture@...
Here is another vid I made the other day. This time the Resonator is on my recently repaired and arpeggiating Korg Polysix with the CS80 doing lead-line.
Re: [yamahacs80] Another one of my videos...
2017-02-11 by noddyspuncture@...
Hi Phil, It is a: Freeform Analogue Technologies (FAT) THC-00 Resinator Cheers, Tom
Re: Tuning..again - Transposition gate zeroing?
2017-02-11 by pyjamagroove@...
Thanks Joachim. I have managed to make the adjustments on the KAS a little better (still few cents out tough..) Now I have finished the complete tuning
Re: Tuning..again - Transposition gate zeroing?
2017-02-09 by joachim.milson@...
step 1 - ok 4,00V This is the expected voltage for C6. step 2 - 125,7mV instead 125,0mV potentiometer to the max This means that when you play C1, the pitch
Re: Tuning..again - Transposition gate zeroing?
2017-02-08 by pyjamagroove@...
Thank you Joachim for the complete and patient answer! You´re always there for us. I am aware of all the steps but I never did the 7 (transposition gate
Re: Tuning..again - Transposition gate zeroing?
2017-02-08 by joachim.milson@...
Hi, 1. What does really the transposition gate zeroing do? It does precisely what its name says: it insures the voltage used to determine the frequency of the
Re: [yamahacs80] Another one of my videos...
2017-02-08 by Phil a
Very nice. And what model & brand is that three band Resonator module ? Phil On 4 February 2017 at 23:29, noddyspuncture@hotmail.com [yamahacs80]
Tuning..again - Transposition gate zeroing?
2017-02-07 by pyjamagroove@...
So I am chasing the dragon yet again... What I am after is this steady ultraslow sweep between the channels and some of them are banging to quickly. I have
Re: [yamahacs80] Another one of my videos...
2017-02-04 by laurie
thanks... I should fix my channel 1 / M1 voice card one of these days.... sigh ... Hi folks, Here is one I made today. I put my CS80 s string presets through a
Another one of my videos...
2017-02-04 by noddyspuncture@...
Hi folks, Here is one I made today. I put my CS80 s string presets through a 3 band resonator. Hope you like...:) Cheers, Tom
The NICE's 'Country Pie' on CS80...!
2017-01-30 by noddyspuncture@...
Here is my latest...:) Cheerz, Tom The NICE s Country Pie ... played on Yamaha CS80... https://www.youtube.com/watch?v=ZAmpmCzIu58
Re: [yamahacs80] Clean CS-80 Overall Circuit Diagram
2017-01-10 by Tommy Priakos
Whoa! That is incredible background info. So if we ve never replaced those caps, would our CS-80s have these minerals of conflict? If so, it would be my only
Re: [yamahacs80] Clean CS-80 Overall Circuit Diagram
2017-01-10 by David Rogoff
Speaking of replacing caps. For years, I’ve replaced tantalums whenever working on old gear because of their problems like exploding. There’s
Re: Clean CS-80 Overall Circuit Diagram
2017-01-08 by joachim.milson@...
Hi Tom, Thanks for pointing these issues. You re right concerning the 100uF capacitors. There are 4 decoupling capacitors; two between ground and +15V, and two
Re: Clean CS-80 Overall Circuit Diagram
2017-01-05 by noddyspuncture@...
Hi folks, Currently I am looking at the M boards in one of my CS80 s with view to recapping and I had a look at the circuit diagram to cross ref against what
Re: [yamahacs80] Tomita Memorial Museum display
2016-11-11 by zaum
... known as Canon of the three Stars ), in one of the renditions of the Villa-Lobos pieces (some brass patch). Thanks for the heads-up, nice to see some of
Aw: [yamahacs80] Tomita Memorial Museum display
2016-11-08 by Stephen Parsick
The CS80 was also used on the 1984 Dawn Chorus album (also known as Canon of the three Stars ), in one of the renditions of the Villa-Lobos pieces (some
Re: [yamahacs80] Tomita Memorial Museum display
2016-11-08 by laurie
I cant believe the CS80 is being supported by the stand it is on...... ... There was an exhibition called Synth Fest 16 in Tokyo last weekend. A major
Tomita Memorial Museum display
2016-11-08 by zaum
There was an exhibition called Synth Fest 16 in Tokyo last weekend. A major highlight was a selection of Tomita s gear. Tomita s long time associate Hideki