820-01041-07 2018 15 inch 55V on backlight output

[MOMOH]

Hello guys

have got an 820-01041-07 2018 15 inch with 55V on backlight output but has no backlight . I have tried with a know good screen , and a different screen cable but no changes , please help

 

[2informaticos]

Check continuity between D8410 and J8500.
55V means there is broken conectivity for LED strips.
Bad connector, video cable, or LCD assembly.
Is there an intermediate short cable between MLB an LCD assembly?

 

[MOMOH]

Thanks for your response... I replaced a different Lcd assembly, the connector looks great, I also replaced the video cable , but no changes . ?Is there an intermediate short cable between MLB an LCD assembly?? I don?t understand what you mean by this , are you referring to the display flex cable that connects to the main board and screen assembly?

 

[2informaticos]

Yes, you have to check all connections between MLB and LCD panel.
You have no continuity for LED strips.

 

[MOMOH]

since I have already tested a video cable and another screen , I will now check continuity on D8410 and j8500