Sorry for double post I made an error. inverted polarity on stm3320820a smoke on pwm diode is there someone in italy that can change diodes? the hdd is stm3320820a fw:3AAE P.N:9DP03G-326 TK DATA CODE 7276 I have 2 other hdd fw:3AAE P.N:9DP03G-326 TK DATA CODE 8397 3AAE P.N:9DP03G-326 TK DATA COD…

I don’t know if you saw this series by fzabkar http://community.wd.com/t5/External-Drives-for-PC/connected-wrong-power-supply-to-3TB-WD-My-Book-Essential-any-way/td-p/837943 he’s posted quite a bit lately and is the only one who understands these boards. Joe

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maxmartin January 14, 2015, 9:40pm 4

I read the post and i do the tests that Fzakabar share with us.

Thank to all for this helpful forum. I resolve removing diode pwm.

Max