开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育
Re: Dead CS80 - finding a short
Happy End! 2017-02-27 19:23 GMT+01:00 David Rogoff david@... [yamahacs80] < yamahacs80@...>:
By oberheim64 · #4537 ·
Re: Dead CS80 - finding a short
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 between +15 and and -15. Something about
By unfrostedpoptart · #4536 ·
Re: Dead CS80 - finding a short
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 CS80's power supply died after i
By pyjamagroove · #4535 ·
Re: Dead CS80 - finding a short
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 have changed the two biggest caps and
By pyjamagroove · #4534 ·
Re: Dead CS80 - finding a short
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 following values between the +15 and G:
By pyjamagroove · #4533 ·
Re: Dead CS80 - finding a short
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.
By pyjamagroove · #4532 ·
Re: Dead CS80 - finding a short
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. The easy way is the kit offered on eBay
By unfrostedpoptart · #4531 ·
Re: Dead CS80 - finding a short
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 pyjamagroove@... [yamahacs80]
By oberheim64 · #4530 ·
Re: Dead CS80 - finding a short
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. Why do you think that might be the
By pyjamagroove · #4529 ·
Re: Dead CS80 - finding a short
Capacitors, Sorry! 2017-02-18 14:43 GMT+01:00 Tommy Salsero <tommysalsero@...>:
By oberheim64 · #4528 ·
Re: Dead CS80 - finding a short
Change all the tantalum condenser from TSB 1 & 2 and TWS. 2017-02-18 2:02 GMT+01:00 pyjamagroove@... [yamahacs80] < yamahacs80@...>:
By oberheim64 · #4527 ·
Re: CS-80 for sale in Chicago
interesting ---- On Fri, 17 Feb 2017 19:50:51 -0600 mborish_2000@... [yamahacs80] <yamahacs80@...> wrote ---- I've got a CS-80 for sale in Chicago. it includes a flight case
By slammah2006 · #4526 ·
CS-80 for sale in Chicago
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 312-363-7286
By mborish_2000 · #4525 ·
Re: Dead CS80 - finding a short
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 and then take the cards out one by one I
By pyjamagroove · #4524 ·
Re: Dead CS80 - finding a short
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 -15v too?) 3. Perform a simple
By pyjamagroove · #4523 ·
Re: Tuning..again - Transposition gate zeroing?
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 have learned a lot reading it preventing me
By pyjamagroove · #4522 ·
Re: Tuning..again - Transposition gate zeroing?
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 commit suicide during it, also Joachim
By Michael Fuchs · #4521 ·
Re: Dead CS80 - finding a short
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 next to the heatsink (they were both
By pyjamagroove · #4520 ·
Re: Dead CS80 - finding a short
Picture came. Daniel Forro
By Daniel Forró <danforcz@...> · #4519 ·
Re: Dead CS80 - finding a short
Was unsuccessful linking a picture, will send to you directly.
By npselliott · #4518 ·