I recently replaced my power supply board and the photocoupler blew its lid. Replaced it with another one from the orginal board and now no power or power light. On the output pins, there is no voltage showing on the PSON. So far, the fuse tested good, and getting dc voltage from the big cap.
During the testing phase of the new board, the metal cover was loose and may have shorted the board, thus blowing out the coupler. That's one theory. Of course there might be other reasons for the blowout.
Any suggestions from the wise and experienced would be appreciated.
Thanks
During the testing phase of the new board, the metal cover was loose and may have shorted the board, thus blowing out the coupler. That's one theory. Of course there might be other reasons for the blowout.
Any suggestions from the wise and experienced would be appreciated.
Thanks
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