820-3332 no keyboard, then no backlight

2click

Member
Hi I have this board which was liquid damaged by customer, first it didn´t turn on, then it turned on and had no trackpad or keyboard, now I changed U5701 / Q5701 / U5750 and have a working keyboard/trackpad but no backlight... I even have PPVOUT_S0_LCDBKLT at 55v, but no backlight, just get the image in the back...
 

2informaticos

Administrator
Staff member
55V on backlight output, means the LEDs strip connection is lost.
Bad LEDs strip, video cable, or LCD connector.
Try known good LCD assembly first.
 
Top