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Old 06-28-2021, 08:30 AM   #11
egad
Not Yet Wild
 
Join Date: May 2021
Posts: 25
Default Re: Melex 252 Curtis controller 1204 bad?

Ok, so i got it open.
I left the pmc in a room which gets really hot these days when the sun is shining. I was looking out and I saw that the side had popped:


So I popped that off, and took of the plastic over the screws with a knife.


I had to wiggle the front and go at it with a knife to get it loose:


About two minutes later:


The insides:






Mosfet and diode:


Anyone sees anything out of the ordinary? Some white powderish gunk on the bottom, probably water got in or something.
Any way of checking the mosfets?
What mosfets can i use to replace? Have searched for the numbers on the mosfets but cant find anything online.

Regards
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