problem with samsung ue22f5000ak

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  • matir
    Member
    • Oct 2013
    • 16
    • italy

    #1

    problem with samsung ue22f5000ak

    I have a problem with a Samsung ue22f5000ak going on and off first quarter of the backlight at the bottom right.
    it is possible to obtain the schematics
    Sorry for my english but I'm using a translator.
  • matir
    Member
    • Oct 2013
    • 16
    • italy

    #2
    Re: problem with samsung ue22f5000ak

    The led panel is au optronics m215hw03 v.1

    Comment

    • thoma
      Badcaps Veteran
      • Sep 2012
      • 268
      • Germany

      #3
      Re: problem with samsung ue22f5000ak

      http://www.samsung.com/uk/support/mo...22F5000AKXXU#n

      Comment

      • thoma
        Badcaps Veteran
        • Sep 2012
        • 268
        • Germany

        #4
        Re: problem with samsung ue22f5000ak

        https://elektrotanya.com/samsung_ua1.../download.html

        schematic Wait until GET MANUAL appears!

        Comment

        • dskall
          Badcaps Legend
          • Oct 2016
          • 2905
          • usa

          #5
          Re: problem with samsung ue22f5000ak

          Very good translator
          I assume no responsibility for any stupid suggestions I might post.

          Comment

          • matir
            Member
            • Oct 2013
            • 16
            • italy

            #6
            Re: problem with samsung ue22f5000ak

            can anyone provide me the electronic diagram of the LED display control

            Comment

            • matir
              Member
              • Oct 2013
              • 16
              • italy

              #7
              Re: problem with samsung ue22f5000ak

              No news ?

              Comment

              • Andrew F. Ali
                Badcaps Legend
                • Jan 2014
                • 2450
                • Trinidad & Tobago

                #8
                Re: problem with samsung ue22f5000ak

                You may get mere responses if you post pictures of the screen so we could see the symptom you are getting. Also post clear focused pictures of the TV with back cover removed so we could see the layout of the boards. Thank you.

                Comment

                • matir
                  Member
                  • Oct 2013
                  • 16
                  • italy

                  #9
                  Re: problem with samsung ue22f5000ak

                  Ok, now I provide

                  Comment

                  • matir
                    Member
                    • Oct 2013
                    • 16
                    • italy

                    #10
                    Re: problem with samsung ue22f5000ak

                    Ok here are the pictures of the display with the defect and the TV open



















                    Comment

                    • dick_barton
                      Badcaps Legend
                      • Aug 2015
                      • 6642
                      • Wales

                      #11
                      Re: problem with samsung ue22f5000ak

                      The panel specification says two light bars each having 64 leds in total per bar.
                      Each made up of 16 leds x 4 strings
                      I suspect you have lost the bottom right hand lower string of leds.

                      Edit
                      The pictures are to small to be of help.
                      Last edited by dick_barton; 03-20-2017, 05:33 AM.
                      Willing to help but I'm no expert.

                      Comment

                      • freakaftr8
                        Badcaps Legend
                        • Oct 2012
                        • 3743
                        • USA

                        #12
                        Re: problem with samsung ue22f5000ak

                        Possible bad connection or open wire on led string. Make sure that no wires going behind the panel are frayed or shorted to the frame. Sometimes the connectors that go into the light strips themselves behind the LCD panel can lose connection. But more thinking of possibly an open LED on that quadrant of the strip
                        Did I leave the soldering iron on?

                        Comment

                        • dskall
                          Badcaps Legend
                          • Oct 2016
                          • 2905
                          • usa

                          #13
                          Re: problem with samsung ue22f5000ak

                          Doesn't seem to be dark in all pictures
                          I assume no responsibility for any stupid suggestions I might post.

                          Comment

                          • matir
                            Member
                            • Oct 2013
                            • 16
                            • italy

                            #14
                            Re: problem with samsung ue22f5000ak

                            The lighting in the lower right is not always off, but is turned on and off every second.
                            The defect will diminish over time, but always persists

                            Comment

                            • vinceroger69
                              Badcaps Legend
                              • Mar 2012
                              • 6714
                              • uk

                              #15
                              Re: problem with samsung ue22f5000ak

                              certainly sounds like a led issue maybe time to strip the lcd down and check them out.

                              Comment

                              • freakaftr8
                                Badcaps Legend
                                • Oct 2012
                                • 3743
                                • USA

                                #16
                                Re: problem with samsung ue22f5000ak

                                LED turning on and off is usually a bad LED but remember it could also be related to an LED controller IC if it uses a certain type of balancing circuit. This controller would be located on the power supply does the flashing interval change or does he led come back on if you adjust backlight brightness
                                Did I leave the soldering iron on?

                                Comment

                                • matir
                                  Member
                                  • Oct 2013
                                  • 16
                                  • italy

                                  #17
                                  Re: problem with samsung ue22f5000ak

                                  The controller is SLC5013R, but the brightness adjustment should not be on the entire LED bar?

                                  Comment

                                  • freakaftr8
                                    Badcaps Legend
                                    • Oct 2012
                                    • 3743
                                    • USA

                                    #18
                                    Re: problem with samsung ue22f5000ak

                                    Not brightness, but backlight luminance control in the menu.
                                    Did I leave the soldering iron on?

                                    Comment

                                    • matir
                                      Member
                                      • Oct 2013
                                      • 16
                                      • italy

                                      #19
                                      Re: problem with samsung ue22f5000ak

                                      Ok but control of the backlight luminance should not cover the entire bar and not just a part?

                                      Comment

                                      • budm
                                        Badcaps Legend
                                        • Feb 2010
                                        • 40746
                                        • USA

                                        #20
                                        Re: problem with samsung ue22f5000ak

                                        Backlights level setting controls ALL the LEDs.
                                        Never stop learning
                                        Basic LCD TV and Monitor troubleshooting guides.
                                        http://www.badcaps.net/forum/showthr...956#post305956

                                        Voltage Regulator (LDO) testing:
                                        http://www.badcaps.net/forum/showthr...999#post300999

                                        Inverter testing using old CFL:
                                        http://www.badcaps.net/forum/showthr...er+testing+cfl

                                        Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                                        http://s807.photobucket.com/user/budm/library/

                                        TV Factory reset codes listing:
                                        http://www.badcaps.net/forum/showthread.php?t=24809

                                        Comment

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