820-4924 no backlight.
liquid damage at q7701. shorted inside the board at PPVIN_SW_LCDBKLT_SW, so i dig out the short, now resistance is good at 0.4kohm
fuse is good 12.6v at both side
ppvout is 12.6v at pin 1 of lvds connector.
i have bklt_en_R 3.3v
I use known good must be working 2015 lcd.
I have tried replacing q7701 q7700
need some pointer at why the output doesnt boost. any help appreciated, thank you..
liquid damage at q7701. shorted inside the board at PPVIN_SW_LCDBKLT_SW, so i dig out the short, now resistance is good at 0.4kohm
fuse is good 12.6v at both side
ppvout is 12.6v at pin 1 of lvds connector.
i have bklt_en_R 3.3v
I use known good must be working 2015 lcd.
I have tried replacing q7701 q7700
need some pointer at why the output doesnt boost. any help appreciated, thank you..