820 2533 - Backlight issue

[Noguinfor]

Hey ,

Liquid damage, Area U9701 and U7100.. This one already works but backlight appear slowly and with DIM backlight like photo show.

Already replace U9701, D9701, R9840, fix trace pin_24 _U9701 to pin1_C9796.

LCD connector looks well and already did 3 PRAM.

Any suggestion ?

thanks

 

[2informaticos]

"fix trace pin_24 _U9701 to pin1_C9796."
Are you sure?
I hope you didn't do that...

 

[Noguinfor]

Sorry, my mistake. i mean pin_21_U9701 to pin1_C9796. was corroded.

 

[2informaticos]

Post voltage at pin 2 of D9701.
C9797/99 are both OK?
Check all return resistors, R971x.

 

[Noguinfor]

pin 2 of D9701 = 28.90V

Ya C9797/99 it's ok. no corrosion on there.

i will check all resistors. but all seems ok. thanks

 

[2informaticos]

Try another compatible LCD assembly.