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Is there anywhere when I can find a schematic for a HIPRO 300 watt switch mode power supply? Part Number D3057F3R used in a HP pavilion a767c computer
This power supply is completely dead. Is there a fuse on the 120VAC side? didn't see a glass fuse on the board. Arcoss the filter caps there is 200 volts there. Just no Secondary output and no 5 volt standby output.
Nothing in side the power supply looks burned and no electrolytic caps buldging. The little green LED on the rear of the supply is Lit but not full brilliance. Also tried jumpering the Green Wire that goes to ground when the Power On switch is pushed on the front panel of the computer, no power supply start with Green wire grounded.
I really need a schematic for this supply to start trouble shooting. I have found schematics for Switch Mode PS but not for the exact HIPRO supply that I have.
I feel the problem is fixable if I had a correct schematic to follow. I know all SM supplies are about the same with a few differences in the Power FET circuit.
Thanks, Kevin
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