IndiaReFix - Laptop & TV Repair Forum

Posted: **Wed Sep 28, 2016 7:37 pm**

cq 40 power on white display issue

board lal50-la4101p

dignosis

checked in external display ok but internal white display coming

checked with new lcd with cable but same issue

then checked in lvds conector

found 18v ok

but lcdvdd not present pin 7,9,11

which is coming from q7 transitor of pin 1

q7 pin 3 have 3.3vs and pin1 have no volage which is called lcdvdd voltage

lcdvdd voltage is missing

resulation

chane the q7 transitor and checked display working fine

Posted: **Mon Oct 03, 2016 11:01 am**

i had a same problem solved it in same way

Posted: **Mon Oct 17, 2016 11:55 am**

Yes same way

[ Post made via Android ]

Posted: **Tue Oct 18, 2016 6:48 pm**

Nice job

[ Post made via iPhone ]

Posted: **Wed Oct 19, 2016 12:21 am**

skbasir wrote:cq 40 power on white display issue

board lal50-la4101p

dignosis

checked in external display ok but internal white display coming

checked with new lcd with cable but same issue

then checked in lvds conector

found 18v ok

but lcdvdd not present pin 7,9,11

which is coming from q7 transitor of pin 1

q7 pin 3 have 3.3vs and pin1 have no volage which is called lcdvdd voltage

lcdvdd voltage is missing

resulation

chane the q7 transitor and checked display working fine

Goog Info...Thanks Master..

Posted: **Tue Feb 12, 2019 5:45 pm**

Samsung r507 laptop white screen problem

Posted: **Tue Feb 12, 2019 5:46 pm**

Samsung r507 laptop white screen problem

IndiaReFix - Laptop & TV Repair Forum

cq 40 power on but white display issue

cq 40 power on but white display issue

Re: cq 40 power on but white display issue

Re: cq 40 power on but white display issue

Re: cq 40 power on but white display issue

Re: cq 40 power on but white display issue

Re: cq 40 power on but white display issue

Re: cq 40 power on but white display issue