| Electronics > Projects, Designs, and Technical Stuff |
| Need help with SMPS / MA3810 chip |
| << < (3/5) > >> |
| 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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