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.mp31st 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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