Locate a screen back light Fuse on HP Chromebook

[PeterPorker3]

Hello, I am trying to locate a screen back light fuse on an HP Chromebook 14 G4's main board. I think I may have blown it after connecting an incompatible screen to the main board. What happened was I had to order a replacement screen for the chromebook after the screen got smashed. and I was unaware that there were 2 different types of connectors. When I tried to connect the replacement screen to the main board, it didn't work at all. I soon realized that I had ordered the wrong one and sent it back and ordered the correct one. Now, I can see things on the screen, but the back light doesn't appear to be working. I tried the old screen (the back light originally worked in it's broken state), but the back light didn't come on anymore on that screen too. Any help is appreciated. 

[Electronics Wizardy]

do you have a board pic? do you have a multimeter?

[PeterPorker3]

Just now, Electronics Wizardy said:

do you have a board pic? do you have a multimeter?

I do have a multi-meter, and here's the best pic I can get. There's a plastic film covering the top of the main board that is hard to remove, and I don't wan't to remove it unless I know I can fix the problem. 

 

[Electronics Wizardy]

12 minutes ago, MineParker101 said:

I do have a multi-meter, and here's the best pic I can get. There's a plastic film covering the top of the main board that is hard to remove, and I don't wan't to remove it unless I know I can fix the problem. 

 

well your gonna need a better pic to see where that fuse is. Do you know which pins are power for the backlight?

[PeterPorker3]

Just now, Electronics Wizardy said:

well your gonna need a better pic to see where that fuse is. Do you know which pins are power for the backlight?

No, that's the problem. I can't find that information anywhere. No One knows where the fuse is ether. I was hoping I could find someone who has some information or skills I don't have.

[Electronics Wizardy]

2 minutes ago, MineParker101 said:

No, that's the problem. I can't find that information anywhere. No One knows where the fuse is ether. I was hoping I could find someone who has some information or skills I don't have.

I can probably find it if i have good board pics.

[PeterPorker3]

I tried to get some better ones, but the heatsink prevented me from pealing away the rest of the plastic film. I can't remove it because I don't have thermal compound on hand to put it back on. Here is what I got:

 

[CsCTech]

I am looking for the same thing. I have some pictures.

[alzz90]

Have you guys find the fuse location ? 

[HarriMann]

Anyone? I have a few of these chromebooks with no backlight. I tired to re-seat the cable but that did not work. According to this thread (https://h30434.www3.hp.com/t5/Notebook-Video-Display-and-Touch/Backlight-Fuse-Location/td-p/6269075) the fuse is on the back of the board. I think I located it and tried to connect the ends as to bypass the fuse, but no luck.

 

Anyone else have any ideas as to how to fix the backlight? 

 

thanks

[Rockin]

I found it on the back. It's large, white, and obvious (like me). Directly on the other side of where the ribbon cable is seated. I used solder to bypass this fuse (after finding no continuity there) and viola! the backlight works and can be controlled through brightness buttons. $0 repair!

[Rockin]

 

it is located on the opposite side of this component, underneath the board.  (not inside it of course.. i mean on the entire other side)