gkmaia Posted January 1 Report Share Posted January 1 I am really stuck with this one. I am 100% positive the 8DIP IC pointed with the red arrow is faulty. As I swap it from another working PSU gets the PSU going again. The Ic has only a "177" marking. I suspected it was an op amp but it was a guess. Not sure what this little board does. I tried the common single and dual channel op amps and also a OP177 a precision single channel op amp... no success. Anyone have any idea of what IC could this one be? Quote Link to post Share on other sites
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