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Help with Electronics Repair, where to find the right fuse?
MonMotha:
I've definitely seen bridge rectifiers fail shorted. Caps too, of course, but probably actually the rectifiers more often.
knave:
I visually inspected all the caps and I didn't see any that looked bad. but then again I'm a noob at such stuff.
I was hoping that I could just pop in a new fuse and poof it works now.
The device failed after a particularly bad surge.
I didn't even know it had a fuse until I cracked it open.
Now I will have to check for continuity since there is no visible damage. (I was kinda hoping to see what was bad.)
lilshawn:
--- Quote from: knave on January 24, 2012, 12:33:10 pm ---The device failed after a particularly bad surge.
--- End quote ---
I would say the bridge rectifier is knackered then.
a power surge exceeds the capability of the diodes in the bridge...a diode in the bridge shorts and it basically connects the 2 sides of the plug together creating a huge surge of current...blowing the fuse.
you might get lucky and it would have a standard diode bridge and can just swap the whole thing, otherwise they would have used individual diodes, in which case, you'll have to test each one and find the culprit.
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