Panasonic TC-P46X3 - HDMI went out

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  • jason123
    Badcaps Legend
    • Oct 2015
    • 1083
    • USA
    #1

    Panasonic TC-P46X3 - HDMI went out

    Hi there, I have a TC-P46X3. It works fine, except that the HDMI Port 1 is not recognizing anything connected to it (tv says check signal...). I had the board professionally serviced and they ran the processor through reflow. That didn't help.

    What components could have gone bad between the connector and the processor? (of course it could be the processor also maybe) I'm unable to find
    a schematic for that board.

    Any help is appreciated. Main board is TNPH0911AY, and I did software update, and TV reset. Board doesn't seem to be available anywhere for purchase, so I'm doing component level troubleshooting. Thank you in advance!
    Tags: None
    • tw2005
      Badcaps Legend
      • Oct 2011
      • 6458
      • Australia
      #2
      Re: Panasonic TC-P46X3 - HDMI went out

      Is it just hdmi1 or all hdmi? There a hdmi controller chip and they do get taken out by lightning easily. .
      Pts electronics inc would be a good
      Place for a rebuild

        Comment

        • jason123
          Badcaps Legend
          • Oct 2015
          • 1083
          • USA
          #3
          Re: Panasonic TC-P46X3 - HDMI went out

          Thanks, yes, only HDMI 1 is not working at all.. HDMI2 is touchy - sometimes works, sometimes doesn't.. do you know the part number or anything about the HDMI controller so I can test / replace? I'm ok with electronics.. but tracing the HDMI lines, they appear to all go to the Panasonic MN2WS0177 controller. and you are correct, these failed or started acting up after a storm took out my cable box
          Last edited by jason123; 05-26-2016, 03:41 PM.

            Comment

            • Diah
              Badcaps Legend
              • Feb 2013
              • 6435
              • Germany
              #4
              Re: Panasonic TC-P46X3 - HDMI went out

              you went so early to reflow the processor ... did you tried reset the TV to factory setting ? as you have only HDMI 1 fault...!!!

                Comment

                • jason123
                  Badcaps Legend
                  • Oct 2015
                  • 1083
                  • USA
                  #5
                  Re: Panasonic TC-P46X3 - HDMI went out

                  Yes on both counts.. I was sure it was BGA solder related issue.. I was wrong. The reflow went well so I don't think I caused damage, only money, right!
                  I did reset the TV to factory .. didn't do it wither.

                    Comment

                    • tw2005
                      Badcaps Legend
                      • Oct 2011
                      • 6458
                      • Australia
                      #6
                      Re: Panasonic TC-P46X3 - HDMI went out

                      I could be wrong as i don't have schematic in front of me. Never tried fault finding hdmi before. Maybe find a similar board from a different size x3 and convert it to your size

                        Comment

                        • tw2005
                          Badcaps Legend
                          • Oct 2011
                          • 6458
                          • Australia
                          #7
                          Re: Panasonic TC-P46X3 - HDMI went out

                          does appear the main chip is everything. If you were desparate there is a board onSJ that would work but you'd be going backwards. you'd lose the ethernet and USB ports.

                          You'd have to look up the specs of a TC-P4632C in case there's other features lost.

                            Comment

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