Archive of the former Yahoo!Groups mailing list: Yamaha CS80
Subject: a joyful discovery on a non-working voice card!
From: rj krohn <r_j_d_2.phila@...>
Date: 2008-01-22
while finally getting a chance to work on some voice card issues today, i made a very exciting discovery. i traced voltages on an IG00153 chip i was about to replace, and discovered that it was not being fed all the proper voltages, and traced the problem to i believe a bridge rectifier or transistor! i think this now means i have a failed $.30 part, not a failed $50+ part! i am quickly approaching a 100% CS-80! 2 voice cards left to go......
and on the subject of chips, if anyone needs an IG00157 chip, i can direct them to where one is available. drop me a line if you need one.
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