Archive of the former Yahoo!Groups mailing list: Yamaha CS80
Subject: 1 voice card not triggering. any ideas/leads? (cs80)รพ
From: "kent_spong" <kent_spong@...>
Date: 2007-11-15
Hi RJ,
Possible causes:
Look see if the trig voltage is present at M23's TR point on the
back edge of the voice card. If it is not there, then there is a
brake in the wire from M13's TR point. If it is, then it may well be
a filter ic or the vco ic or the final vca that may be gone. If you
have a scope look and see if there is a waveform on the vca's useing
the front panel for square and sine outputs. Also check the O point
and see if the wire has come away. This is the white wire at the
bottom edge of the voice card.
Let me know how yo get on.