Yamaha CS80

Thx Tom, we must do a thorough check: I suggested to look at "TR" point to check out wheter the trigger voltage gets in or not.

I uploaded an example here
http://f1.grp.yahoofs.com/v1/YMX2TNMy5zBttEZFOSUnTjJv3TlEQQufv024yFmL23UWRuXA84kn5mUBLhkbcym_hbibgfMsr6hGKD8lDDvkaFHlUn-x6qsFZmU/VCF%20pb.mp3

1st hit: good voice card w/o envelope action

2nd hit: voice #7 w/o envelope action

3rd hit: good voice with full IL and AL

4th hit: voice #7 with full IL AL , VCA envelope with medium release.

As you may hear it definitely looks like that the envelope isn't triggere but rightfully it may be even the buffer....btw are you missing a 152 too?
M



----- Original Message ----- 
  From: Quazimodo 
  To: yamahacs80@yahoogroups.com 
  Sent: Wednesday, December 01, 2010 11:29 PM
  Subject: [yamahacs80] Re: VCF-EG problem on CS-60


    
  Max, using a 'scope, look for a waveform on it's output pin(3) - if there is an output then it could be the associated buffer (IG00151) chip. In my case a while ago it was the 152, if you find any please let me know where you got it - I could do with a spare...;c)

  Cheers,
  TOM

  --- In yamahacs80@yahoogroups.com, "Max Fazio" <faxiomas@...> wrote:
  >
  > Hi people
  > I'd need some help to solve a problem: a friend of mine has recently acquired a CS-60 in fair good conditions and we're involved with the tuning and calibration process: suddendly we realized that the VCF-EG in voice #7 doesn't work, it seems like the VCF envelope doesn't get the trigger , while the VCA-EG works good.
  > What controls should we do before surrender and look for a working iG00152?
  > Thnaks for any suggestion!
  > Max
  > 
  > [Non-text portions of this message have been removed]
  >



  

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