HP Omen 15-dh0007na - no display

[tommy97]

Hi,

i've got HP Omen 15-dh0007na which come with no display (works externally). Tried new flex & LCD, still no difference, i assume that there is no image/backlight as i couldn't see anything. Also tried to do me region on it BIOS, still same thing. Any ideas?

Board: LA-H482P

[mon2]

Measure the voltage to ground of the eDP display connector.

[tommy97]

Those values are with LCD connected

123 - 19.5V
5-16 0v
17-18 0.240V
19-23 0V
24 1V
26-29 3.6
30 3.3V
31-32 0V
33-34 0.5V
35-40 0V

[mon2]

24 1V
26-29 3.6

These measurements are incorrect since pin 24 is also mated with pin 26.

Confirm the +LCDVDD voltage to ground by testing the voltage to ground on inductor LV3 (either side).

If truly @ 1v then UV1 regulator is in trouble.

Test the voltage to ground on UV1 - pin 1, pin 4 and also pin 6.

[tommy97]

oled_bist_en 0v
+lcdvdd 3.6V
nv_nvsr 1v
1-3 pin 19.5v

[mon2]

Confirm that each of the following caps are present and are not defective.

[tommy97]

I don't have board view for it, can't really see those, could you help me locsting them?

[m1ch43lzm]

Boardview here: https://www.badcaps.net/forum/troubl...atic-boardview

Schematics here: https://www.badcaps.net/forum/troubl...-cx-schematics
It says LA-H492P but in the first page LA-H482P is also mentioned

[tommy97]

CV 15-16 0.95V PIN 1 / PIN 2 - 0V
CV 14-13 0.94V PIN 1 / PIN 2 - 0V
CV 11-12 0.95V PIN 1 / PIN 2 - 0V
CV 10-9 0.92V PIN 1 / PIN 2 - 0V
CV 7-8 0V PIN 1 / PIN 2 - 0.28V

Caps are okay.

[tommy97]

Anyone?