Hi Charlie,

You could send me the list of all multi pins IC"s mounted on a
heat sink.I will tell you which one is the culprit.

After all pins have been well resoldered , use a DMM to be sure there
is no short circuit between any pins. (buzzer test)

Let us */suppose/ *that your vertical IC is numbered IC301.Then you
should also replace all

electrolytic capacitors whose first *number* begin with a 3
(C301,C302,C303,etc.).Your vertical IC should have

at least 12-15 pins (LA7636 or LA7637 or LA7638 or .............)

Let me know about the results.

Jacques