Dell Inspiron: M5030 No Backlight LED

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  • speedypro
    Badcaps Veteran
    • Feb 2013
    • 561
    • United Kingdom

    #1

    Dell Inspiron: M5030 No Backlight LED

    Hi all.

    Im repairing this dell m5030 but it has no backlight on the lcd. Things to note:
    • Screen is working
    • Cable is ok
    • Tried other working led screen and same issue.


    Anyone has experienced this issue before? Any links to schematic manual?

    Thanks!
    Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer
  • Uranium-235
    Comrade Glimmer
    • Aug 2007
    • 5042
    • US

    #2
    Re: Dell Inspiron: M5030 No Backlight LED

    how do you know the cable is ok? did you take a MM and check every lane? Other than that i'm thinking motherboard
    Cap Datasheet Depot: http://www.paullinebarger.net/DS/
    ^If you have datasheets not listed PM me

    Comment

    • speedypro
      Badcaps Veteran
      • Feb 2013
      • 561
      • United Kingdom

      #3
      Re: Dell Inspiron: M5030 No Backlight LED

      Originally posted by Uranium-235
      how do you know the cable is ok? did you take a MM and check every lane? Other than that i'm thinking motherboard
      Tried another working cable and same issue. So MM is the culprit.
      Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer

      Comment

      • DJduck
        Badcaps Veteran
        • Dec 2012
        • 229
        • Estonia

        #4
        Re: Dell Inspiron: M5030 No Backlight LED

        Motherboard's LCD led controller is toasted, see if you get any voltage on the pins.
        I can put text here?!

        Comment

        • speedypro
          Badcaps Veteran
          • Feb 2013
          • 561
          • United Kingdom

          #5
          Re: Dell Inspiron: M5030 No Backlight LED

          Originally posted by DJduck
          Motherboard's LCD led controller is toasted, see if you get any voltage on the pins.
          Thanks but what pins?
          Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer

          Comment

          • speedypro
            Badcaps Veteran
            • Feb 2013
            • 561
            • United Kingdom

            #6
            Re: Dell Inspiron: M5030 No Backlight LED

            I'll answer this thread: I have used a little of MEK and wiped around the gpu and all is well. I now have the backlight once again.
            Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer

            Comment

            • mangkook
              Member
              • Jul 2013
              • 13
              • Malaysia

              #7
              Re: Dell Inspiron: M5030 No Backlight LED

              Originally posted by speedypro
              I'll answer this thread: I have used a little of MEK and wiped around the gpu and all is well. I now have the backlight once again.
              so your problem gpu issue? my Toshiba L500 gpu are socketed to PCIE, are yours too? any idea how to clean them? I got a can of CRC Co Contact Cleaner.

              Comment

              • dj_ricoh
                Badcaps Legend
                • Jan 2013
                • 2073
                • uk

                #8
                Re: Dell Inspiron: M5030 No Backlight LED

                i rly don`t understand what that MEK means. any one helps me with that translate?
                got one that its doing the same.
                gpu related? i need to reflow?
                or missing Volt.
                Just cook it! It's already broken.

                Comment

                • speedypro
                  Badcaps Veteran
                  • Feb 2013
                  • 561
                  • United Kingdom

                  #9
                  Re: Dell Inspiron: M5030 No Backlight LED

                  Originally posted by dj_ricoh
                  i rly don`t understand what that MEK means. any one helps me with that translate?
                  got one that its doing the same.
                  gpu related? i need to reflow?
                  or missing Volt.
                  Dude...just google. See wiki

                  Also wipe around the southbridge chip
                  Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer

                  Comment

                  • rhomanski
                    nowhere man
                    • Dec 2009
                    • 5157
                    • U S of A

                    #10
                    Re: Dell Inspiron: M5030 No Backlight LED

                    Methal Ethal Ketone. Carcinogen. I've watched 5 people die from brain tumors from using it to clean their hands.
                    sigpicThe Sky Is Falling

                    Comment

                    • dj_ricoh
                      Badcaps Legend
                      • Jan 2013
                      • 2073
                      • uk

                      #11
                      Re: Dell Inspiron: M5030 No Backlight LED

                      Originally posted by speedypro
                      SPEEDYPRO
                      When you come to London tell me so i can buy you a COFFE
                      reflow did the trick no time wasted on this dell TY SIR
                      Just cook it! It's already broken.

                      Comment

                      • MisterD
                        Badcaps Veteran
                        • Oct 2012
                        • 668
                        • United States

                        #12
                        Re: Dell Inspiron: M5030 No Backlight LED

                        I'm working on a Dell M5030 LED with no Backlight for a friend,shined a small flashlight on the screen and could see the images so I removed front plastic bezel around the screen, then removed the two top screws and 4 side screws.

                        unplugged webcam connector and was able to access the circuit board on the back of the screen, applied some light heat from a heat gun directly to the circuit board only and then some cold spray and isolated it down to a smaller area on the board,

                        after reaching just the right temperature I had backlight again. upon close inspection of the circuit board using a magnifying glass I noticed some poor looking solder connections on what looked like 3 resistors that were all 3 in a row.

                        after I re-soldered the connections on them it seems to be working good now, left on for several hours with no failure. left off for 2 hours then turned back on and still had backlight, not sure if it's fixed yet, will leave off overnight and check again in the morning.
                        Last edited by MisterD; 09-15-2013, 10:25 PM.

                        Comment

                        • speedypro
                          Badcaps Veteran
                          • Feb 2013
                          • 561
                          • United Kingdom

                          #13
                          Re: Dell Inspiron: M5030 No Backlight LED

                          Originally posted by dj_ricoh
                          When you come to London tell me so i can buy you a COFFE
                          reflow did the trick no time wasted on this dell TY SIR
                          Ha! Just saw this! Yea cool. But MEK is dangerous, very!
                          Full-time computer repair tech (10am - 6pm) and full-time, (8am - 11pm), Ruby on Rails Developer

                          Comment

                          • rifat490
                            New Member
                            • Nov 2016
                            • 2
                            • USA

                            #14
                            Re: Dell Inspiron: M5030 No Backlight LED

                            this is really interesting.really amazing.thanks for that.

                            Comment

                            • flaworlds
                              New Member
                              • Dec 2016
                              • 2
                              • Vietnam

                              #15
                              Re: Dell Inspiron: M5030 No Backlight LED

                              maybe cable not working

                              Comment

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