This arrived with no backlight and at a loss of what it could be.
Using one of our known good screens i do get 3.3V for image but 0v backlight. Both sides D7701 0V no shorts in diode mode. Also replaced U7701 and Q7701 but no change. F7700 is good.
U7701
pin 5 5v
pin 18 5v
pin 17 0v
pin 11 12.45v
Using one of our known good screens i do get 3.3V for image but 0v backlight. Both sides D7701 0V no shorts in diode mode. Also replaced U7701 and Q7701 but no change. F7700 is good.
U7701
pin 5 5v
pin 18 5v
pin 17 0v
pin 11 12.45v