ASUS TUF A16 (FA617-PMV-GBM) - POSTing but no display Internal or External

Hello

I have an ASUS TUF A16 laptop board number FA617-PMV-GBM / 6050A3460902-MB-A02. The problem is there is no display. The laptop will post, i can toggle the caps lock key on/off and the keyboard backlight is on, the fans are spinning, but there is no display on the internal screen or through the HDMI out to an external monitor. I have replaced the screen and still no change. I suspect it is probably a GPU or VRAM issue, but wanted to fully confirm if anybody can help, thank you.

I have taken resistance measurements of all coils in the picture.

KenM0560 написав:6050A3460902-MB-A02

Hello!
Is this motherboard marking code correct?

Measure the power consumption (in mA) of the board, when the machine is turned on with and without RAM memory connected.

There is also this code on the board "FA617-PMV-GBM"

After looking i can not find the right adapter tip for this laptop to connect to the lab power supply. I have nearly 30 tips and not the right one.

You can toggle the caps lock key on/off after several seconds after pressing the power button.