So, everything in place including outputs and w/o Q15, you have a rapid protection LED flashing?
Is this also true with Q15 installed?
Are you applying signal? Remove the input board and see what happens.
Post a closeup picture of the softstart circuit and U2, and another of the board w/o the input board.
Is this also true with Q15 installed?
Are you applying signal? Remove the input board and see what happens.
Post a closeup picture of the softstart circuit and U2, and another of the board w/o the input board.
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