Asus X455LD Rev. 2.1 Internal Display Problem

[kodox]

Hello everyone...

Just got confused with this mainboard, it's working flawlessly using external display via VGA port. After entering windows 7 welcome screen, internal display turned on by it self and it's cloned to external VGA display. But without external display attached to VGA port it's nothing on internal display and it's not booting to hard drive, all power rails is present when using only internal display except on lvds connector, only these pin has a voltage on it:
pin 1-3: 19v
pin 10, 12, 13, 20, 37, 40: 3.3v.

Updating bios same result, try to jumper U4601 pin 3 to pin 5 to get voltage on lvds connector pin 38 & 39 only resulting black LCD no image and backlight. Tried reflow the CPU same result.

Any help would be appreciate it, thank's in advance

Link to boardview + Repair guide https://www.badcaps.net/forum/showthread.php?t=124492
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[Techtiger]

Re: Asus X455LD Rev. 2.1 Internal Display Problem

do you have the schematic for this Asus X455LD Rev. 2.1

[mcplslg123]

Re: Asus X455LD Rev. 2.1 Internal Display Problem

Internal monitor set as default or not in settings???

[kodox]

Re: Asus X455LD Rev. 2.1 Internal Display Problem

do you have the schematic for this Asus X455LD Rev. 2.1

No schematic found on the net for this type of board

[kodox]

Re: Asus X455LD Rev. 2.1 Internal Display Problem

Internal monitor set as default or not in settings???

No such settings in the bios

[kodox]

Re: Asus X455LD Rev. 2.1 Internal Display Problem

anyone...?
please...

[Nurshad]

Re: Asus X455LD Rev. 2.1 Internal Display Problem

Asus X455LD Rev. 2.1 Internal Display Problem Any Friends help me

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