Electronics > Projects, Designs, and Technical Stuff

Need help with SMPS / MA3810 chip

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Psi:
Yeah, have a closer look, from the pic it appears the corner of it may have exploded.

nukie:
sharp eyes you got people! makes tv forensic shows look dumb. is the PCB coated with clear conformal coating?

flolic:

--- Quote from: nukie on March 03, 2012, 12:17:50 am --- is the PCB coated with clear conformal coating?

--- End quote ---
Yes.

Rectifier (covered in white glue) is also ok.

nukie:
then beware of moisture trapped in between the conformal coat and PCB. preheat the board for a few hours at 60-70c before powering up.

flolic:
That was the first thing I did, baking for hours at 80-90C...

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