Hp zbook 15 g3 identify component

[jasko_jacker]

Hi all,
hp zbook 15 G3 APW50 LA-C381P
This notebook has already been managed by another lab with no results. The problem is about the video output, it displays externally correctly but after its LCD has broken with a new LCD it's not displayed. Unfortunately, the scheme is not available. I saw that a component was soldered (UV29 I do not know if it was changed) that brings a voltage directly to the LCD socket.
Does anyone know what kind of component it is?
Thank you

[jasko_jacker]

Re: Hp zbook 15 g3 identify component

I find a schematic of old zbook but the lcd flat cable connector seems to be the same so it's missing +LCDVDD and INVPWR_B+

[caspian]

Re: Hp zbook 15 g3 identify component

I guess UV29 is probably an AND gate. you can use the datasheet of MC74VHC1G08 instead of UV29's original datasheet. UV29 probably makes AND between two signals to produce an enable signal for LVDS or GPU.