Dozer
Member
hi,
i am just working on that board
have video with lamp behind the lcd but no backlight.
i already figured out that the pwm signal is 0V and without R9704 and 3.3 V direct on U9701 Pin 4 i get nice backlight
so i thought (R9704 both sides is 0V) the GMUX is the prolem
i reballed the GMUX but still the same problems
is here the GMUX bad ? or what signals has to come in for a good PWM output?
is the GPU involved?
i am just working on that board
have video with lamp behind the lcd but no backlight.
i already figured out that the pwm signal is 0V and without R9704 and 3.3 V direct on U9701 Pin 4 i get nice backlight
so i thought (R9704 both sides is 0V) the GMUX is the prolem
i reballed the GMUX but still the same problems
is here the GMUX bad ? or what signals has to come in for a good PWM output?
is the GPU involved?