Question about Mad Dog Multimedia SurePower (MD-350WPS) (MD350WPS) 350-Watt Power Supply

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Dead md-350wps I turned on my 350wps after sitting on my shelf for 2 years and it is dead. Need schematic to troubleshoot. jjohnj1@yahoo.com

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First remove all the dust from smps then check power cord output by multimeter whether right or not ok then open and you will find one fuse there check it without supply if open then replace it if not then check whether a.c. supply reaches or not if present then check the thermister resistance it should be low also check the dry solder if present then remove it please check dc supply at primary filter (big cylendrical capacitor) if not present then 4 bridge rectifier diodes may faulty replace it

Posted on Oct 27, 2008

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Thank you for using FIXYA.

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