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Recent content by PWM123

  1. P

    Help Needed Repairing a HP PC power supply Urgent

    I also checked Negative 12v rail and found out it is giving only 0.82v.
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    Help Needed Repairing a HP PC power supply Urgent

    I checked the PS OK line...it showed zero volts
  3. P

    Help Needed Repairing a HP PC power supply Urgent

    Not a single cap look bulged..all look fine. But will check in more detail now. Will get back with updates
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    Help Needed Repairing a HP PC power supply Urgent

    Ok i will clean it. I glanced all components looked fine but will check caps and resistors. Yes the fuse is good. actually in the pic i have removed the varistors as thr ones i replaced were of little different part no. And i saw on net that a PS can work fine without varistord aswell. Will get...
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    Help Needed Repairing a HP PC power supply Urgent

    Anyone can tell me how to diagnose this problem? I think 3.3v rail is shorted. The PSU model is Liteon PS-6301-9HP
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    Help Needed Repairing a HP PC power supply Urgent

    Yes i think.. i tested it with a heat gun blowing on the temperature sensor attached on the heatsinks. but the volts on the fan wires rose 0.28v to 1.20v only and then at the 1.20v mark the PS shuts off without any load
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    Help Needed Repairing a HP PC power supply Urgent

    Pics of the PSU internals
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    Help Needed Repairing a HP PC power supply Urgent

    Hello everyone. recently got a used HP 300w ATX pc power supply for cheap and the main reason to buy it was to use as power supply to power car electronics,lights at home. So when i got it the power supply was very dirty so i opened up and cleaned inside. Then i plugged it in a 220v...

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