aSUS k55vd no backlight

[jasko_jacker]

As you can see on the pic , LED_BKLTEN is managed by two bat54a diodes
in common anode configuration.
Backlight works only without LCD_BACKEN_PCH_IR signal, this line has 25 Ohm (with or without the 104 resistor array), 0.7 V and is connected direct to pch.
If I remove the diode D4602 backlight go on (LED_BKLTEN get 3.3 v) and the pwm signal LED_BKLTCTL can change the brightness.
pch issue ? but if I leave it all like this what could happen?

[caspian]

Re: aSUS k55vd no backlight

If D4602 is removed, I guess the followings may be possible:
- Backlight gets on earlier than expected at startup.
- Backlight stays on when the OS tries to turn the screen off after 20min of inactivity.

[jasko_jacker]

Re: aSUS k55vd no backlight

If D4602 is removed, I guess the followings may be possible:
- Backlight gets on earlier than expected at startup.
- Backlight stays on when the OS tries to turn the screen off after 20min of inactivity.

Thanks