Philips 43PUS8550 no image, backlight working

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  • lotas
    Badcaps Legend
    • Jan 2016
    • 4482
    • Russia

    #21
    Compare with the working bar, it should be approximately the same.

    Comment

    • pseudorc
      Member
      • Sep 2024
      • 12
      • United Kingdom

      #22
      Originally posted by lotas
      Compare with the working bar, it should be approximately the same.
      Checked against bar and gnd, around 3.2 on both end of the resistor but in between the both end its 0

      Is that supposed to happen?
      Attached Files

      Comment

      • pseudorc
        Member
        • Sep 2024
        • 12
        • United Kingdom

        #23
        Originally posted by pseudorc

        Checked against bar and gnd, around 3.2 on both end of the resistor but in between the both end its 0

        Is that supposed to happen?
        Here are some pics of what i was measuring
        Attached Files

        Comment

        • lotas
          Badcaps Legend
          • Jan 2016
          • 4482
          • Russia

          #24
          You measure relative to the ground, that contact goes through a resistor...
          I don’t have such a panel at the moment and I can’t measure how it should be, you have a working bar on the other side and compare the readings with it.
          Attached Files
          Last edited by lotas; 09-05-2024, 05:19 AM.

          Comment

          • Diah
            Badcaps Legend
            • Feb 2013
            • 6349
            • Germany

            #25
            Originally posted by lotas
            This is the first time I've heard this, did you come up with it yourself?
            be thankfull to one try to explain for you part of huge subject how IPS work with OP testing of ribbon disconnected...

            but you are child and this your ways to push other.. yours age or any parts of yours life will never catch 10% of my working profile life include degree... i do feel my self happy when i explain some things to other... but if the other become rude like you..... no excuse of hard answer you will hear from me..

            who delete my previous answer to you... his brain blocked too as this remarked sentence he passed it away.. and most user they know who i am...

            so stop from this art of writing, and don't copy from other portal to post over here ... i am old member over the famous Russian 4pda--- just take caution.

            Comment

            • lotas
              Badcaps Legend
              • Jan 2016
              • 4482
              • Russia

              #26
              I’m approaching 60 years old, and I’m no longer a child, and if I’m confident in my advice, then I give it...

              Comment

              • Diah
                Badcaps Legend
                • Feb 2013
                • 6349
                • Germany

                #27
                good to hear you are no more child... by approaching the 60th , don't be confident unless you had studied / worked or faced same issue to advice with explanation .. that's all

                Comment

                • lotas
                  Badcaps Legend
                  • Jan 2016
                  • 4482
                  • Russia

                  #28

                  Yes, all knowledge and practice comes with age, but technology does not stand still...​

                  Comment

                  • pseudorc
                    Member
                    • Sep 2024
                    • 12
                    • United Kingdom

                    #29
                    So actually this wasn;t a MB issue at all, I have capped/taped some connection showing in the picture and the voltage and screen is back. I guess the issue is either in scaler PCB somewhere or connection to the half LCD panel itself, can't fix it in that case at home.

                    anyone knows if i keep this that way what to expect?
                    Attached Files

                    Comment

                    • lotas
                      Badcaps Legend
                      • Jan 2016
                      • 4482
                      • Russia

                      #30
                      Originally posted by pseudorc
                      So actually this wasn;t a MB issue at all, I have capped/taped some connection showing in the picture and the voltage and screen is back. I guess the issue is either in scaler PCB somewhere or connection to the half LCD panel itself, can't fix it in that case at home.

                      anyone knows if i keep this that way what to expect?
                      Yes, as I wrote above, this is a problem in the panel, leave it like that, if you are satisfied with the image, there is nothing better you can do.

                      Comment

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