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Lenovo g570 la- 675ap half power on
Posted: Mon Mar 28, 2016 5:51 am
by windsor
Case study : Lenovo g570 la- 675ap coffee inside no power on properly dc load only 0.17amp after diagnose u38 mosfet not working properly . u38 passing 5v alw to 2.7v only when power on. Culprit is r646 20k ohms resistance and also track broken vsb to u38 gate . make track and change 20k resistance . laptop power on . clear all connectors and flex cable laptop working fine.
Re: Lenovo g570 la- 675ap half power on
Posted: Fri Apr 01, 2016 2:21 am
by esmat-fadak
good job
Re: Lenovo g570 la- 675ap half power on
Posted: Fri Apr 01, 2016 2:50 am
by aamkaachaar
PLease update the picture for clear reference
Re: Lenovo g570 la- 675ap half power on
Posted: Fri Apr 01, 2016 5:31 am
by sai
nice job
Re: Lenovo g570 la- 675ap half power on
Posted: Sun Apr 03, 2016 2:43 pm
by windsor
thanks everyone next time i will post with pic .