DANTAX (42V7)

[WILLYAM1]

Hi to all.
problem is :power supply clicks no other volltage just 5vstby is flat and ok.
by heating the p.s whith fan tve come on but whith a lot of sparkling dots all volltge are ok in p.s and a little nois from p.s.
power supply is:USP440M-42LP.
schematic?is someone hade the same problem in this p.s?.
willyam1