30 Nov
2005
30 Nov
'05
8:16 p.m.
So, given that assumption for now, anyone know of a
likely fault
in a typical SMPSU that might cause such a catastrophic chip
failure but no other obvious damage?
The switching transistor has probably gone s/c which ends up
connecting the rectified mains to the switch output on the IC.
They tend not to last long when that happens.
Lee.
..
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