LENOVO M3A760M

[minhaj]

PROBLEM :- NOT PWR ON

DIGNOSIS :- NO SHORTING,
POWER PIN VOLTAGE OK,

CRYSTAL CHANGE BUT SAME

Now GOING TO IO

5VSB PROBLEM

CHANGE IO BUT SAME

NOW TRACE WITH THAT PIN I FOUND ONE RES (IT SHOULD BE 10K)

BUT IT SHOW MORE VALUE ON METER , I REMOVED IT AND CHECK SAME IT SHOW MORE VALUE


THEN I PUT OTHER 10 K RES FROM OTHER SCRAP MB


NOW MB PWR ON OK DISPLAY OK ALSO WORKING GOOD

[dspok]

Great share but which pin of what IC did you trace.