Yamaha CS80

How does it behave if you switch the bend range to fifth/third ?
  ----- Original Message ----- 
  From: Anders Eriksson 
  To: yamahacs80@yahoogroups.com 
  Sent: Wednesday, February 18, 2009 11:10 AM
  Subject: [yamahacs80] Re: Yamaha CS70M Pitch bend problem


  Yes it's completely different on the CS-80 with a 
  ribbon, but you say that pitchbending up from zero on the CS-80, 
  thats one octave up, i wonder if the cv voltage doubles on the CS-80 
  to?

  It must be something that limits the pitchbend on my CS70M (last 6 
  keys) when CV voltage passes 5.7 volts the pitch freeze, it seems 
  that the highest key voltage for my VCO's i 5.7 volts. 
  Keyboard voltage on the CS70M is: 
  Lowest C: 125mv
  Highest C: 4V

  >
  > the pitch bend is a ribbon on the CS80....totaly different then the 
  wheel on the 70m....
  > I used to have one and still have my magneto's....
  > On the Cs80...there is no center detent.....where ever you touch 
  the ribbon becoms zero......
  > you can pitch down from 0 to subhz(less than one hz), but only bend 
  up from 0 an octave....and that is using the same lenght of ribbon...
  > -----Original message-----
  > From: "Anders Eriksson" aliaswavefront@...
  > Date: Tue, 17 Feb 2009 16:05:20 -0700
  > To: yamahacs80@yahoogroups.com
  > Subject: [yamahacs80] Yamaha CS70M Pitch bend problem
  > 
  > Hello everyone!
  > 
  > I have a problem with the Yamaha CS70M, it's the pitch bend on the 
  > last 6 highest notes G - C6, they wount go up a hole octave instead 
  > stops at G6 on all last 6 keys.
  > 
  > All ref.voltages from the service manual are correct (from 
  keyboard, 
  > to the 12 voice cards), and when pitch bending a hole octave the 
  key 
  > voltage doubles, for the highest key you have 4volt CV in on leg2 
  > (key voltage input) IG00153 and when pitch bend full upp: 8volt, 
  but 
  > when the CV reaches 5.7volt the pitchbend stops. 
  > 
  > This is for all voice cards there is 12 of them, and i cant belive 
  > that all VCO IC's are faulty. Can it be a design fault from Yamaha?
  > 
  > How is it with the CS-80? when pitchbend fully up, have anyone 
  > measured the CV voltage on the IG00153 IC?
  > 
  > Would be greatful for all help!
  > 
  > /Anders
  >



  

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