Hitachi 50HK6100U Screen fault?

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  • Ukdigger
    Senior Member
    • May 2020
    • 121
    • England

    #1

    Hitachi 50HK6100U Screen fault?

    I've seen this for sale, any ideas about the fault.

    Attached Files
  • nomoresonys
    Badcaps Legend
    • Jan 2013
    • 12129
    • U.S.

    #2
    Re: Hitachi 50HK6100U Screen fault?

    It could be a bad panel, maybe something else hard to tell but from the looks I wouldn't be too optimistic, if it's bad panel it's junk, worth very little, maybe just for parts and can be hard to tell what parts may be good, in that condition.

    Comment

    • Ukdigger
      Senior Member
      • May 2020
      • 121
      • England

      #3
      Re: Hitachi 50HK6100U Screen fault?

      The price was reduced to £15 so I bought it thinking I can sell the parts if I can't get it working. I removed the right hand side cable from the T-con board and I get a good clean half black and half white screen. If I plug and aerial in I get a slightly polorised picture but no striping. When I removed the left hand side cable from the T-con board and plug the right hand side back in, I get striping and no picture. I tried the tape trick but it didn't work. I tested all the caps on the screen buffer boards but there are no shorts. I tested the T-con board (CCPD-TC495-008 V4.0) and Vcom is 6.8v VGL is -5.8 VGH is 24v and VDD is 15.2v.

      Comment

      • Ukdigger
        Senior Member
        • May 2020
        • 121
        • England

        #4
        Re: Hitachi 50HK6100U Screen fault?



        Attached Files

        Comment

        • Diah
          Badcaps Legend
          • Feb 2013
          • 6357
          • Germany

          #5
          Re: Hitachi 50HK6100U Screen fault?

          show me the main boards please

          Comment

          • Ukdigger
            Senior Member
            • May 2020
            • 121
            • England

            #6
            Re: Hitachi 50HK6100U Screen fault?




            Vestel mb 230
            Vestel 17IPS72
            Attached Files

            Comment

            • Diah
              Badcaps Legend
              • Feb 2013
              • 6357
              • Germany

              #7
              Re: Hitachi 50HK6100U Screen fault?

              search over here the Vestel mb 230 firmware with urs panel no. its firmware issue
              my 3910 reached stay healthy

              Comment

              • lotas
                Badcaps Legend
                • Jan 2016
                • 4562
                • Russia

                #8
                Re: Hitachi 50HK6100U Screen fault?

                The firmware will not help, the problem is in the panel.

                Comment

                • nomoresonys
                  Badcaps Legend
                  • Jan 2013
                  • 12129
                  • U.S.

                  #9
                  Re: Hitachi 50HK6100U Screen fault?

                  maybe try tape cut-off method, can check the little mlc caps on panel driver boards for shorts or very low ohms, been over both procedures many many times here.

                  Comment

                  • Diah
                    Badcaps Legend
                    • Feb 2013
                    • 6357
                    • Germany

                    #10
                    Re: Hitachi 50HK6100U Screen fault?

                    Originally posted by lotas
                    The firmware will not help, the problem is in the panel.
                    lotas .... Dont be @Davi.p No 2..
                    this is exception post... where are the fault in Panel.... show us


                    Comment

                    • lotas
                      Badcaps Legend
                      • Jan 2016
                      • 4562
                      • Russia

                      #11
                      Re: Hitachi 50HK6100U Screen fault?

                      Originally posted by Ukdigger
                      The price was reduced to £15 so I bought it thinking I can sell the parts if I can't get it working. I removed the right hand side cable from the T-con board and I get a good clean half black and half white screen. If I plug and aerial in I get a slightly polorised picture but no striping. When I removed the left hand side cable from the T-con board and plug the right hand side back in, I get striping and no picture. I tried the tape trick but it didn't work. I tested all the caps on the screen buffer boards but there are no shorts. I tested the T-con board (CCPD-TC495-008 V4.0) and Vcom is 6.8v VGL is -5.8 VGH is 24v and VDD is 15.2v.
                      The right side is not working. Let him turn off the left side and connect the right side and post a photo of the image.

                      Ukdigger take a high-quality photo of the completely left bar (when viewed from the back of the TV) and the T-con board.
                      Last edited by lotas; 03-31-2023, 03:58 PM.

                      Comment

                      • Diah
                        Badcaps Legend
                        • Feb 2013
                        • 6357
                        • Germany

                        #12
                        Re: Hitachi 50HK6100U Screen fault?

                        Originally posted by lotas
                        The right side is not working. Let him turn off the left side and connect the right side and post a photo of the image.

                        vestel Firmware had section called MFC. its related to Panel. when its at half buffer state,, the screen will act at dummy action

                        Comment

                        • Ukdigger
                          Senior Member
                          • May 2020
                          • 121
                          • England

                          #13
                          Re: Hitachi 50HK6100U Screen fault?


                          Picture with right hand side cable removed, as viewed from the back of the TV with aerial plugged in.
                          Attached Files
                          Last edited by Ukdigger; 04-02-2023, 03:00 AM.

                          Comment

                          • Ukdigger
                            Senior Member
                            • May 2020
                            • 121
                            • England

                            #14
                            Re: Hitachi 50HK6100U Screen fault?







                            Attached Files

                            Comment

                            • Ukdigger
                              Senior Member
                              • May 2020
                              • 121
                              • England

                              #15
                              Re: Hitachi 50HK6100U Screen fault?




                              Pictures with right hand side cable removed, as viewed from the back of the TV. In my original post it should have said left cable removed gives a picture.
                              The screen changes from one picture to the other every couple of seconds
                              Attached Files
                              Last edited by Ukdigger; 04-02-2023, 03:07 AM.

                              Comment

                              • lotas
                                Badcaps Legend
                                • Jan 2016
                                • 4562
                                • Russia

                                #16
                                Re: Hitachi 50HK6100U Screen fault?

                                Can you take clearer photos of a non-working bar, otherwise you got very muddy ones?

                                Comment

                                • Ukdigger
                                  Senior Member
                                  • May 2020
                                  • 121
                                  • England

                                  #17
                                  Re: Hitachi 50HK6100U Screen fault?





                                  Non working side, changes every few seconds
                                  Attached Files

                                  Comment

                                  • Ukdigger
                                    Senior Member
                                    • May 2020
                                    • 121
                                    • England

                                    #18
                                    Re: Hitachi 50HK6100U Screen fault?











                                    Attached Files

                                    Comment

                                    • lotas
                                      Badcaps Legend
                                      • Jan 2016
                                      • 4562
                                      • Russia

                                      #19
                                      Re: Hitachi 50HK6100U Screen fault?

                                      You can measure the resistance of these test points to ground (GND) with the cable disconnected from the T-CON.
                                      Attached Files

                                      Comment

                                      • Ukdigger
                                        Senior Member
                                        • May 2020
                                        • 121
                                        • England

                                        #20
                                        Re: Hitachi 50HK6100U Screen fault?

                                        They all read 1.58 in diode mode
                                        I checked the other board and they all read 1.57 apart from 2 which read 1.56

                                        Comment

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