________UPDATE September 2016___________
Update – I’ve moved this post from the old location at nwapchelp.wordpress.com
For those looking for assistance on finding the fuse on Various models, Please provide photos near the LCD Connecter, but also near where the power charger plugs in. I am seeing the possibility that some fuses may be located over near that area.
This applies to Dell, Sony and many other manufacturers of laptops with LED based screens.
These issues are also commonly search on as no backlight. In most cases when you know the screen is good, it will be a power issue from the motherboard causing the backlight to fail to power up.
On the motherboard you should find a fuse labeled f1 in the case of dells, that is approximately .8 mm in depth, and 1.55 to 1.6mm in length. This fuse protects the voltage circuit to the led’s. in the case of a dell inspiron 1545, it is a 3 amp, 32v fuse, that can be replaced relatively cheaply. Make sure tho that you have isolated the cause of the fuse blowing. Good luck!
The Fuse is located on the Dell Inspiron‘s just below where the led video cable connects to the motherboard.
Use a Continuity Tester or Multimeter to confirm whether or not it has blown. If you find any other fuses or different locations, feel free to comment, or even link to pictures of other fuse locations and I’ll approve them.
For other manufacturer’s the location is not so obvious unfortunately.
Lenovo TS400 LED Fuse Location
Sony Vaio VGN-TX5XN Possible Fuse locations for either LCD or charging. The two that are circled need to be tested for continuity.
Brook posted a link to badcaps about his ASus K53, this image he has a white component circled, I’m 99.9% certain that is a fuse, and when he tests it doesn’t have continuity. can anyone verify?
Hey there. I’m having the same issue with my Asus K53. I have posted a thread on badcaps.net I can’t
- Dim Laptop LED – F1 Fuse just below the motherboard connector (nwapchelp.wordpress.com)
Dell XPS 1701 with blown mosfet?
If you post a comment with photo’s, take the time to make sure that when zoomed in the component labels are still legible. The components that have to be viewed need to be as sharp as possible, with as little glare as possible.
1 tip is to balance the phone on a stack of books or something to help steady it, and take the photos in smaller sections, overlap them just enough that I can make out where one stops and another begins.