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Logisys PS480D Power Supply is Dead

Hi, can someone point me in the direction for a schematic diagram for this single fan psu? Physically is looks perfect, no burnt, dark smelly components but it took a surge and now doesn't power up at all. Not sure if it is worth my time but I'm retired so!!!!
Thanks
Rick

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First of all you should check power cable of smps. if it is ok then you can check smps for ok or fault.Short green and black wire in main output connector(for motherboard).If fan dont moves then check primery rectifire(4 diodes),switching transistor and protestion transistor(on first heatsink),check fuse,ntc,capacitorin primary section. Hope this be of initial help/idea. Pls post back as requested, how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FIXYA.

Posted on Mar 07, 2008

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