ASUS X505ZA LVDS pinout

[ictc]

I got this board for repair after liquid spillage that burn part of the 40 pins lvds/edp connector on the board. 3 pins (39, 38,37) related to the bigger copper trace were completely missing but the trace still visible. The traces 40 and 36 are missing. I need to create the traces for these pins but have no idea where are supposed to be connect on the pcb as the original traces and pads are completely missing. Anybody has an identical or very similar board to look for or otherwise knows where those pins are supposed to go? I searched on VESA homepage and I found a pin correspondace matrix where it seams the pins from 39 to 36 are connected to the BKL 12V rail.

[Techtiger]

Re: ASUS X505ZA LVDS pinout

First send a cleair pic of the the LVDS booth side check outher side of the MB for a coils near to LVDS

[ictc]

Re: ASUS X505ZA LVDS pinout

first send a cleair pic of the the lvds booth side check outher side of the mb for a coils near to lvds

[ictc]

Re: ASUS X505ZA LVDS pinout

I do not know what signals expect on the edp connector in order to get the image. Backlight power came straight from the main 19v power rail and it is connected on pins 36-37-38-39 with a solder blob as you can see from the images. In order to solve the short I had to separate the first to layers and than isolate the copper trace from the ground plane underneath. I also had to isolate two vias because I didn't know where to attach it because all artound was just burned out.

[ictc]

Re: ASUS X505ZA LVDS pinout

I tried to put a lamp on the back of the screen to see if any image was present and there was not. On the HDMI output the image still visible so the gpu side I assume is fine. The only problem still with the EDP dispaly output...

[Sametbey]

Re: ASUS X505ZA LVDS pinout

It is necessary to move on the LCD panel. do you have required voltages at the panel pins? 3.3v 19V. BL_ON. 39 and 40 pins of the panel socket must be 19v. You can take a 19v from the motherboard and give it to the LVDS socket with a coil.