Thread: Discussion Troubleshooting my Dead PSU
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Old Aug 07, 2012, 07:20 AM
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Australia, VIC, Glen Waverley
Joined Jan 2011
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Thanks for taking the time out to comment on my problem

1 - The step-down transformer only has 2 coated wires coming out of it which can been seen in the pics.

2 Ė No burnt marks on the caps. Itís a shadow from the lighting I used to take the pic. Values of the capacitors are 680uf 200V. Iím 100% sure there are no burnt marks around the caps.

3- The part circled in red is the off/on switch. There is no rectifier that I can see. Could it be that the rectifier is on the same PCB above the caps and next to the AC socket? There are 3x yellow blocks with the following values;

Over active & neutral plug Ė
CARLI MPX40/100/21

Closest to outside of case
CARLI MPX40/100/21

Closest to Caps
CARLI MPX40/100/21

After writing this all up I decided to take the grey covers over the Mosfetís (I think thatís what itís called) that sit on the heat sink and I found an obvious problem.

So what do you think I should do now
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