Check if the LCD display is working by applying a flashlight around the front side of the display. Can you see any graphics on the LCD display? If yes, then the backlight is an issue.
Check if the LCD display is working by applying a flashlight around the front side of the display. Can you see any graphics on the LCD display? If yes, then the backlight is an issue.
Perhaps the lcd display is damaged? What is the history of the laptop?
Any liquid damage? Check the lvds cable, connector, be sure the contacts are clean on the display cable.
Is the backlight working?
Suspecting there is a mux that routes the display traffic to either the external hdmi port or to the local display. Schematics will be helpful.
Sir lcd was changed with working one, lvds was also replaced, but same result,
I could not found its schematic, so unable to check lvds connector pin volts
Lvds connector pins and surroundings components were checked, some have values others are not, the findings are attached in pic along with schematic pic.,., any guidance please
Hi i would look to the lidswitch first. Test the lidswitch. You need 3,3v. Also measure the resistance tobground where you got 0v and share it here.
Good luck
Hi i would look to the lidswitch first. Test the lidswitch. You need 3,3v. Also measure the resistance tobground where you got 0v and share it here.
Good luck
Regards Steve
sir i dont know what happened, but the display has come. the values of
>> lid_switch is now around 3.18V on D33 diode, earlier it was 0.03V
>> on IO Pin No. 64, is also 3.18V earlier it was 0.03V
>> as per schematic, the lid switch value on the Hall Switch IC (U1002-as shown in attached pic) is also 3.18 V
For knowledge seeking, what can be the reason if lidswitch volt is missing.
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