Re: Faulty Philips PSU (715g5246-p01-000-002s )

I know this is an old thread, but I just want to comment that I'm pretty sure this board is designed to output 3.3V instead of 5.2V. Why? Because if you calculate the output voltage from the reference voltage, you arrive at 3.26V.

This formula comes from the datasheet of IC9304 to calculate Vout:
(R9337/R9338+1)*Vref=
(12.7KOHM/7.87KOHM+1)*1.25V=3.26V
Therefore the voltage is regulated to be ~3.26V

I think originally there was intended to be the mosfet Q9301 which switched the path...