LCD screen back light not working Announcing the arrival of Valued Associate #679: Cesar...

Amount of permutations on an NxNxN Rubik's Cube

How to identify unknown coordinate type and convert to lat/lon?

How to report t statistic from R

Why can't I install Tomboy in Ubuntu Mate 19.04?

How would a mousetrap for use in space work?

What does 丫 mean? 丫是什么意思?

The Nth Gryphon Number

Is it fair for a professor to grade us on the possession of past papers?

Does the Mueller report show a conspiracy between Russia and the Trump Campaign?

Deconstruction is ambiguous

What are the discoveries that have been possible with the rejection of positivism?

What order were files/directories output in dir?

Did any compiler fully use 80-bit floating point?

Getting prompted for verification code but where do I put it in?

Project Euler #1 in C++

What is the meaning of 'breadth' in breadth first search?

How were pictures turned from film to a big picture in a picture frame before digital scanning?

Is the IBM 5153 color display compatible with the Tandy 1000 16 color modes?

Why does it sometimes sound good to play a grace note as a lead in to a note in a melody?

How do living politicians protect their readily obtainable signatures from misuse?

Can a Beast Master ranger change beast companions?

What does Turing mean by this statement?

Drawing spherical mirrors

Is there public access to the Meteor Crater in Arizona?



LCD screen back light not working



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 23:30 UTC (7:30pm US/Eastern)How to fix a non-working laptop backlight?Thinkpad T60 display has suddenly gone dimLenovo U310 Wifi not working or very slowBack light not workng, replaced laptop LCD, next step?HP laptop display stopped workingWhy is my laptop screen flickering white and grey?Laptop making low-pitched, humming noises when turned off but not unplugged (Lenovo IdeaPad 100)Dell inspiron LCD image failureReplacement of laptop screen, back light issueLG monitor suddenly won't turn on.. power button is blinking





.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}







0















Short story: The screen back light of my Lenovo IdeaPad 700-15ISK-88IP7000671 failed (the LCD works). I changed the LCD cable and then the whole LCD,without success.



Long story: My laptop LCD started to flicker, so I bought a new LCD. When I changed it, it worked fine, but accidentally disconnected the LCD cable. Then I tried to connect it again WITHOUT TURNING OFF COMPUTER; the LCD cable sparked at the connector, and the back light stopped working. After that I bought new LCD cable, changed it, but the problem haven't fixed. So I bought a new LCD, changed it, but the back light is still not working.



All in all: the back light is not working on 3 LCDs and 2 LCD cables. What's the problem?










share|improve this question









New contributor




asas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





















  • Please look underneath your Y700 and find the serial number plate or sticker. Then, on that, find the model number, for there are five different classes of Y700 Ideapad, and many versions of each of those. Click on edit.and put the model number in when you have it.

    – K7AAY
    6 hours ago











  • okay, i already did that

    – asas
    5 hours ago


















0















Short story: The screen back light of my Lenovo IdeaPad 700-15ISK-88IP7000671 failed (the LCD works). I changed the LCD cable and then the whole LCD,without success.



Long story: My laptop LCD started to flicker, so I bought a new LCD. When I changed it, it worked fine, but accidentally disconnected the LCD cable. Then I tried to connect it again WITHOUT TURNING OFF COMPUTER; the LCD cable sparked at the connector, and the back light stopped working. After that I bought new LCD cable, changed it, but the problem haven't fixed. So I bought a new LCD, changed it, but the back light is still not working.



All in all: the back light is not working on 3 LCDs and 2 LCD cables. What's the problem?










share|improve this question









New contributor




asas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





















  • Please look underneath your Y700 and find the serial number plate or sticker. Then, on that, find the model number, for there are five different classes of Y700 Ideapad, and many versions of each of those. Click on edit.and put the model number in when you have it.

    – K7AAY
    6 hours ago











  • okay, i already did that

    – asas
    5 hours ago














0












0








0








Short story: The screen back light of my Lenovo IdeaPad 700-15ISK-88IP7000671 failed (the LCD works). I changed the LCD cable and then the whole LCD,without success.



Long story: My laptop LCD started to flicker, so I bought a new LCD. When I changed it, it worked fine, but accidentally disconnected the LCD cable. Then I tried to connect it again WITHOUT TURNING OFF COMPUTER; the LCD cable sparked at the connector, and the back light stopped working. After that I bought new LCD cable, changed it, but the problem haven't fixed. So I bought a new LCD, changed it, but the back light is still not working.



All in all: the back light is not working on 3 LCDs and 2 LCD cables. What's the problem?










share|improve this question









New contributor




asas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












Short story: The screen back light of my Lenovo IdeaPad 700-15ISK-88IP7000671 failed (the LCD works). I changed the LCD cable and then the whole LCD,without success.



Long story: My laptop LCD started to flicker, so I bought a new LCD. When I changed it, it worked fine, but accidentally disconnected the LCD cable. Then I tried to connect it again WITHOUT TURNING OFF COMPUTER; the LCD cable sparked at the connector, and the back light stopped working. After that I bought new LCD cable, changed it, but the problem haven't fixed. So I bought a new LCD, changed it, but the back light is still not working.



All in all: the back light is not working on 3 LCDs and 2 LCD cables. What's the problem?







display lenovo-laptop lcd backlight






share|improve this question









New contributor




asas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









New contributor




asas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









share|improve this question




share|improve this question








edited 5 hours ago







asas













New contributor




asas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









asked 6 hours ago









asasasas

11




11




New contributor




asas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.





New contributor





asas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.






asas is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.













  • Please look underneath your Y700 and find the serial number plate or sticker. Then, on that, find the model number, for there are five different classes of Y700 Ideapad, and many versions of each of those. Click on edit.and put the model number in when you have it.

    – K7AAY
    6 hours ago











  • okay, i already did that

    – asas
    5 hours ago



















  • Please look underneath your Y700 and find the serial number plate or sticker. Then, on that, find the model number, for there are five different classes of Y700 Ideapad, and many versions of each of those. Click on edit.and put the model number in when you have it.

    – K7AAY
    6 hours ago











  • okay, i already did that

    – asas
    5 hours ago

















Please look underneath your Y700 and find the serial number plate or sticker. Then, on that, find the model number, for there are five different classes of Y700 Ideapad, and many versions of each of those. Click on edit.and put the model number in when you have it.

– K7AAY
6 hours ago





Please look underneath your Y700 and find the serial number plate or sticker. Then, on that, find the model number, for there are five different classes of Y700 Ideapad, and many versions of each of those. Click on edit.and put the model number in when you have it.

– K7AAY
6 hours ago













okay, i already did that

– asas
5 hours ago





okay, i already did that

– asas
5 hours ago










1 Answer
1






active

oldest

votes


















0














The power to drive the LCD panel might have gone through components it shouldn't have, due to a short-circuit when you tried to connect your screen while turned on.



I would probably run down some of the pcb traces from the motherboard connector, and you might find burnt components/solder areas or a blown fuse. They aren't necessarily easy to find.



Overall, I don't have much hope for your laptop motherboard. You might need to send it to a repair shop if you don't feel confident replacing the components yourself.






share|improve this answer
























    Your Answer








    StackExchange.ready(function() {
    var channelOptions = {
    tags: "".split(" "),
    id: "3"
    };
    initTagRenderer("".split(" "), "".split(" "), channelOptions);

    StackExchange.using("externalEditor", function() {
    // Have to fire editor after snippets, if snippets enabled
    if (StackExchange.settings.snippets.snippetsEnabled) {
    StackExchange.using("snippets", function() {
    createEditor();
    });
    }
    else {
    createEditor();
    }
    });

    function createEditor() {
    StackExchange.prepareEditor({
    heartbeatType: 'answer',
    autoActivateHeartbeat: false,
    convertImagesToLinks: true,
    noModals: true,
    showLowRepImageUploadWarning: true,
    reputationToPostImages: 10,
    bindNavPrevention: true,
    postfix: "",
    imageUploader: {
    brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
    contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
    allowUrls: true
    },
    onDemand: true,
    discardSelector: ".discard-answer"
    ,immediatelyShowMarkdownHelp:true
    });


    }
    });






    asas is a new contributor. Be nice, and check out our Code of Conduct.










    draft saved

    draft discarded


















    StackExchange.ready(
    function () {
    StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1427467%2flcd-screen-back-light-not-working%23new-answer', 'question_page');
    }
    );

    Post as a guest















    Required, but never shown

























    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    0














    The power to drive the LCD panel might have gone through components it shouldn't have, due to a short-circuit when you tried to connect your screen while turned on.



    I would probably run down some of the pcb traces from the motherboard connector, and you might find burnt components/solder areas or a blown fuse. They aren't necessarily easy to find.



    Overall, I don't have much hope for your laptop motherboard. You might need to send it to a repair shop if you don't feel confident replacing the components yourself.






    share|improve this answer




























      0














      The power to drive the LCD panel might have gone through components it shouldn't have, due to a short-circuit when you tried to connect your screen while turned on.



      I would probably run down some of the pcb traces from the motherboard connector, and you might find burnt components/solder areas or a blown fuse. They aren't necessarily easy to find.



      Overall, I don't have much hope for your laptop motherboard. You might need to send it to a repair shop if you don't feel confident replacing the components yourself.






      share|improve this answer


























        0












        0








        0







        The power to drive the LCD panel might have gone through components it shouldn't have, due to a short-circuit when you tried to connect your screen while turned on.



        I would probably run down some of the pcb traces from the motherboard connector, and you might find burnt components/solder areas or a blown fuse. They aren't necessarily easy to find.



        Overall, I don't have much hope for your laptop motherboard. You might need to send it to a repair shop if you don't feel confident replacing the components yourself.






        share|improve this answer













        The power to drive the LCD panel might have gone through components it shouldn't have, due to a short-circuit when you tried to connect your screen while turned on.



        I would probably run down some of the pcb traces from the motherboard connector, and you might find burnt components/solder areas or a blown fuse. They aren't necessarily easy to find.



        Overall, I don't have much hope for your laptop motherboard. You might need to send it to a repair shop if you don't feel confident replacing the components yourself.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered 3 hours ago









        AlexLossAlexLoss

        677




        677






















            asas is a new contributor. Be nice, and check out our Code of Conduct.










            draft saved

            draft discarded


















            asas is a new contributor. Be nice, and check out our Code of Conduct.













            asas is a new contributor. Be nice, and check out our Code of Conduct.












            asas is a new contributor. Be nice, and check out our Code of Conduct.
















            Thanks for contributing an answer to Super User!


            • Please be sure to answer the question. Provide details and share your research!

            But avoid



            • Asking for help, clarification, or responding to other answers.

            • Making statements based on opinion; back them up with references or personal experience.


            To learn more, see our tips on writing great answers.




            draft saved


            draft discarded














            StackExchange.ready(
            function () {
            StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fsuperuser.com%2fquestions%2f1427467%2flcd-screen-back-light-not-working%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown





















































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown

































            Required, but never shown














            Required, but never shown












            Required, but never shown







            Required, but never shown







            Popular posts from this blog

            Why not use the yoke to control yaw, as well as pitch and roll? Announcing the arrival of...

            Couldn't open a raw socket. Error: Permission denied (13) (nmap)Is it possible to run networking commands...

            VNC viewer RFB protocol error: bad desktop size 0x0I Cannot Type the Key 'd' (lowercase) in VNC Viewer...