Toshiba Satellite L755D no backlight on motherboard – fuse location?

[JGAN]

Hey all,
My Toshiba Satellite L755D laptop stopped powering its backlight on the internal display. It is an LED backlit display, so no inverter. I pulled it apart and found no voltage on the PWM pin on the LCD board itself, and when I applied 5v from an external supply, the backlight turned on.

I'm guessing that the fuse on the board blew, but there are no markings on the board to locate it. Does someone happen to have the schematic for this laptop? Otherwise how do I find the fuse for the LCD PWM output?

Thanks,
JGAN

[JGAN]

Re: Toshiba Satellite L755D no backlight on motherboard – fuse location?

EDIT: It's actually a Toshiba Satellite L775D, not L755D.

[selldoor]

Re: Toshiba Satellite L755D no backlight on motherboard – fuse location?

Pictures?

[dycc]

Re: Toshiba Satellite L755D no backlight on motherboard – fuse location?

take voltage on motherboard and modify .

you need to use 3.3vswitch if you don't want to see blank screen until it display