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Laptop Repair

Dim Laptop LED Screen – F1 or F8 Fuse just below the motherboard video connector

looks to have a blown component but its not a fuse.

_____________________________________UPDATE January 2013_______________________
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.

After almost 5 years maintaining info in two spots I’m beginning to merge at my main domain.

Please jump to my main domain to view the 200 plus comments and screenshots of common fuse locations for a number of different brands of motherboards with dead fuses..

Continue to the full post and comments at my domain http://www.nwapchelp.com/dim-laptop-led-f1-fuse-just-below-the-motherboard-connector/

For other manufacturer’s the location is not so obvious unfortunately.

You will find pictures for some of the following…

  • 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.
  • See the SCREENSHOT – of Blown Fuse of a SONY vaio No Backlight PCG-6121M,
  • plus 200 comments many with photos of various motherboards linked.
  • Thanks for stopping by and best of luck in your search for a solution!



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