No Backlight on LED screen

Discussion in 'VAIO / Sony' started by nebage, Sep 27, 2011.

  1. WMCM76

    WMCM76 Newbie

    Reputations:
    2
    Messages:
    3
    Likes Received:
    0
    Trophy Points:
    5
    It will be something labelled "F" (5 or 15) near to where the display cable is connected to the board. I don't see anything for this model on the web so it's a shot in the dark.
     
  2. Bigmaxy

    Bigmaxy Newbie

    Reputations:
    0
    Messages:
    3
    Likes Received:
    0
    Trophy Points:
    5
    Thanks WMCM76. There does not seem to be much info about the Duo 11 available. The only devices with anything labeled on them have the letter "T". I've checked them and if they are fuses they appear to test ok. Unfortunately the PCB doesn't seem to have anything to provide guidance either.
    My next line of thought was to try to figure out the pinouts of the LVDS and see if I could trace the backlight power back on the board. Possibly impossible if they are a multi-layer board. Don't know.
     
  3. WMCM76

    WMCM76 Newbie

    Reputations:
    2
    Messages:
    3
    Likes Received:
    0
    Trophy Points:
    5
    Mine was a multilayer board and the fuse was on the underside. I put a voltmeter on either side to check continuity before doing anything. I was also lucky enough to stumble on a YouTube video for my precise model that told me exactly what F number I was looking for.
    The one thing they all share in common seems to be that they're all located near to the monitor connector on the board.
    I wasn't able to get a fuse to replace mine. Instead I tinned a fine piece of copper wire and soldered it on top. It's not ideal, but will still blow before setting fire to the house :)
     
  4. chikoo711

    chikoo711 Newbie

    Reputations:
    0
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    5
    hello, please heeeeeelp I have sony vaio model SVF142c1ww I replaced screen and battery was on after that backlight are not working i can see the diplay but without backlight tried another screen its also like that so please which fuse i must bridge and on which side is located ???
     
  5. chikoo711

    chikoo711 Newbie

    Reputations:
    0
    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    5
    hello, please heeeeeelp I have sony vaio model SVF142c1ww motherboard is (DA0HK8MB6E0 REV E Model HK 8), I replaced screen and battery was inside after that backlight are not working i can see the diplay but without backlight tried another screen its also like that so please which fuse i must bridge and on which side is located ??? here is the photo
    http://ge.tt/7Wm8stR2/v/0
    http://ge.tt/4HxUpuR2/v/0
     
    Last edited: Nov 16, 2015
  6. ngvuanh

    ngvuanh Notebook Deity

    Reputations:
    288
    Messages:
    1,168
    Likes Received:
    31
    Trophy Points:
    66
    Try this.

     

    Attached Files:

    Bigmaxy likes this.
  7. ngvuanh

    ngvuanh Notebook Deity

    Reputations:
    288
    Messages:
    1,168
    Likes Received:
    31
    Trophy Points:
    66
    Look for F2 on other side in your first photo underneath LCD connector
     
  8. flipicaneze

    flipicaneze Newbie

    Reputations:
    0
    Messages:
    3
    Likes Received:
    0
    Trophy Points:
    5
    I have this issue with a VPCSA390X. I tried using a continuity tester on it and it is good, however there are three components on the top that aren't giving me anything. On the opposite side of the dip switch/video connector they still have continuity. They don't look like the the fuses with the N on them either. I am thinking this board is fried.

    https://www.facebook.com/photo.php?fbid=10206357372506545&l=8416eb05b2

    Thanks in advance for any help.
     
  9. Bigmaxy

    Bigmaxy Newbie

    Reputations:
    0
    Messages:
    3
    Likes Received:
    0
    Trophy Points:
    5
    Top stuff mate. That did the trick. Cheers heaps.
     
  10. Hieu Ha

    Hieu Ha Newbie

    Reputations:
    0
    Messages:
    7
    Likes Received:
    1
    Trophy Points:
    6
    Hi everyone,

    My VAIO model is VPCSE2MFY/B :confused:
    After read through the discussion, I think the fuse in my vaio has blown.
    I ordered a new screen but no backlight, so confused.
    Please help me locate the fuse. I have attached the picture, please help.:(

    The upper side
    [​IMG]
    http://1drv.ms/1ILWrl6
    The down side
    [​IMG]
    http://1drv.ms/1Oaa2Vc
    Upper side where the LCD connector is
    [​IMG]
    http://1drv.ms/1Oaa3Zb
    Down side of the LCD connector
    [​IMG]
    http://1drv.ms/1Oaa67m

    Thank you all very much
     
Loading...

Share This Page