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Black screen after screen replacement

Lulu38 -  
contrariness Posted messages 17905 Registration date   Status Member Last intervention   -

Hello,

I changed the screen of my Lenovo Thinkpad L560 after a breakage.

When restarting, the screen is black. The new screen works perfectly on another identical PC. So the problem comes from the L560 which I must have damaged while reassembling the screen (static electricity?). I should mention that I did not remove the battery. I also note that the display works with an external monitor. Finally, when I shine a bright light, I can see the characters on the black screen.

Could you help me? Where should I look? Is it the backlight inverter which I can't find on this model?

Thank you immensely for your help as I see no assistance on the forums.

I

Do you know how


2 answers

  1.
    contrariness Posted messages 17905 Registration date   Status Member Last intervention   6 243
     

    Did you buy exactly the same model of screen?....

    Original or compatible?
    If it works on another identical computer, it's that you forgot something during the reassembly...
    If it works on another one, does the other panel work on this PC?

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  2. lulu38
     

    Thank you for your response.

    The slab I bought was comparable but not exactly the same. When I install the slab that works on another PC onto this L560, the screen remains black.

    However, the reassembly seems correct to me. I connected the 30-pin connector.

    It's as if I've burnt something upstream, but I don't know what.

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    1. contrariness Posted messages 17905 Registration date   Status Member Last intervention   6 243
       

      It's possible that you damaged something...
      You should have disconnected the battery... all repairs are done without power.

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      1. lulu38 > contrariness Posted messages 17905 Registration date   Status Member Last intervention  
         

        thank you for your response. Indeed, but what should we do now?

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      2. contrariness Posted messages 17905 Registration date   Status Member Last intervention   6 243 > lulu38
         

        If the screen stays black, we can assume that it no longer has power... especially since you say you can make out characters in the background..
        So we need to look at its power supply... and without equipment, it's going to be difficult.

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