All in one Sony Vaio VPCL22Z1E 3D version no video on main display

[microso]

Hi,
I bought an all in one Sony Vaio VPCL22Z1E 3D version which does not show anything on the display, instead it works ok on the hdmi output (video and sound).
I tested with a flashlight and it seems that it does not display the image without backlight.
It doesn't make any sound in the built-in speakers and the headphone output has a very weak level.
As an observation, I use a 19.5V power supply with 120W and in the specifications the original one would have 180W.
Could this be the reason why it doesn't work properly?
Mainboard is V021_MP_3D_1.1 1P-0115J00-8011 MBX-245 and 3D mb is V021 3D Giroppon MP Board 1P-1115J00-8012.


Thank you.

[microso]

Hi,
Can someone help me with the schematics of these boards (V021_MP_3D_1.1 1P-0115J00-8011 MBX-245 and 3D mb is V021 3D Giroppon MP Board 1P-1115J00-8012), so I can check the voltages?
Thx.

[microso]

Hi,
Looks like the tochscreen is working but no image on the display.
Thx.

[microso]

HI,
I checked a fuse on the motherboard and re-solder one end and now it's ok (there are two fuses on the board and I found another one on the back of the board of 35V 4A which was ok, picture 1-2).
So far no change, still no image on the screen, works only on the hdmi output, no sound in the speakers.
I also checked two diodes near the power connector, which seem defective( no voltage in both directions during the diode test ), but I could not find any reference about the code written on them CH1i /22LL.
Can someone help me with replacement equivalents?