Clevo W150HRMB-OD

[Chieftain]

Hello mates,,,
I want a schematic for Clevo W150HRMB-OD.
The laptop works fine but no screen leds on...
I test 2 more screens with same results. No screen leds on.
Any ideas?
Thank you all.

[anshad]

Re: Clevo W150HRMB-OD

If external display OK but internal LVDS display not coming, there are multiple possibilities

1] Screen failure - Less likely in your case as you have tried another screen already

2] LVDS Cable failure

3] One of the core LVDS supply is missing - check 19V LCD Backlight, 3V LCDVDD for Panel, Backlight on and PWM signals to control the backlight

4] Discrete GPU Failure - Sometimes GPU failure may cause external display OK but LVDS display fail


I believe the below Service manual is compatible with your model. It includes schematic diagram at Appendix B section

https://cdn.badcaps-static.com/pdfs/...00aa56fffb.pdf

[Chieftain]

Re: Clevo W150HRMB-OD

extremely thanks for your reply...
I have already found the schematic here :
https://repo.palkeo.com/clevo-mirror/W1x0HRx/

But it is a mess when I am trying to find lcd's cable pinouts in schematic
It could be apriciated if someone knows the correct voltage per pin (the "wanted") for Led backlight trigger,,

Thank you

[anshad]

Re: Clevo W150HRMB-OD

36,38,40 LEDP L_VIN = 19 volt

33 BR IGH TN ESS_ R = between 1 - 3 volt

28,30 PLVDD = 3.3 volt

32 INV_ BL ON = 3.3 volt

[Chieftain]

Re: Clevo W150HRMB-OD

I will check 36,38,40 ... There is no 19v in any pin ...
I really appreciate your help mate....

[Chieftain]

Re: Clevo W150HRMB-OD

Unfortunately no difference to screnn LED light when I placed 19v to 36,38,40...
The other pins are voltage correct...
Any ideas?

[Chieftain]

Re: Clevo W150HRMB-OD

ok... Finally I found a solution. I cut off 36-38-40 cables from base (red-orange-green), and I bridged them in 19v directly... Now laptop posts and screen LED back lights are fine... Thank you