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Backlight Issue

  • 07-07-2019 08:39PM
    #1
    theshadow
    Registered Users, Registered Users 2 Posts: 119 ✭✭


    Hi folks,
    I have a HP 14-AM078na with no backlight. Tested the screen on another laptop and it's fine. Pretty sure cable is ok too, normally happens over time and moving cable, ie opening/closing lid will restore picture if cable is dodgy. This backlight just stopped suddenly. My understanding this can be caused by a blown fuse on MB.
    Took motherboard out and looked at the area under the LVDS connector, see pic. Two fuses marked, F3020 and F3033. F3020 is marked 1.1A/6V is easy to see on the board,H+, tested continuity and its fine. F3020 is marked 0.5A/24V but I'm not which conponent it is?
    Looks like its beside D3000 but I think that is just a register, anyone any ideas?

    The motherboard model is DINERINL-6050A2823301-MB-A02, can't find any schematics online.

    Thanks in advance.


Comments

  • #2
    theshadow
    Registered Users, Registered Users 2 Posts: 119 ✭✭theshadow


    UPDATE
    Managed to get my hands on a similar laptop and connected the screen + LED cable to my motherboard, worked perfectly, so motherboard is fine. Turned out the issue was with LED cable, never presume anything :). Anyway I managed to get the laptop working if I angle the LED cable at the motherboard connector with some tape.


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