Panasonic TH-L32C30Z troubleshooting

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  • Ragga_NZ
    New Member
    • Oct 2014
    • 4
    • New Zealand
    #1

    Panasonic TH-L32C30Z troubleshooting

    Hi,

    I was wondering whether someone could help me troubleshoot my panasonic tv. TH-L32C30Z.

    The initial problem was the tv would turn itself off (to standby) about 10 minutes after viewing (continuous flashing of red LED, no

    pattern). Then after a while it would do this after a few seconds after it was turned on.

    I used a remote control and lower volume button on the set to do a factory reset. No it turns on, shows the setup page screen goes

    dark, setup page comes on again and screen goes dark again, setup page comes on again and then goes dark and stays that way (green led

    stays on). Whilst this is happening I can hear buzzing initially from the square transformer at the top of the p board and just before

    the screen goes dark a buzzing sound from the top transformer with the two windings. Can't see any bulging or leaking caps. Any ideas????

    Thanks very much for your help

    Two vids at
    https://www.youtube.com/watch?v=L2YKdowUydk
    https://www.youtube.com/watch?v=s70p9ft-vX8
    Tags: None
    • Moreno83
      Badcaps Legend
      • Jun 2014
      • 2008
      • The Netherlands
      #2
      Re: Panasonic TH-L32C30Z troubleshooting

      Could you post some pictures of the boards?
      I only repair Panasonic plasma tv's! Currently owning a TX-P55VT50 and still searching for a ZT60!

        Comment

        • Neelix
          Senior Member
          • Oct 2013
          • 145
          • South Africa
          #3
          Re: Panasonic TH-L32C30Z troubleshooting

          Post some pictures yes, but I think it's a backlight or inverter fault

            Comment

            • Ragga_NZ
              New Member
              • Oct 2014
              • 4
              • New Zealand
              #4
              Re: Panasonic TH-L32C30Z troubleshooting

              Here are pics of the p. board and the components that are buzzing on the P. board. I haven't got a pic of the other board at present will need to open up when i'm at home.
              Attached Files

              if you find these attachements useful please consider making a small donation to the site

                Comment

                • tw2005
                  Badcaps Legend
                  • Oct 2011
                  • 6458
                  • Australia
                  #5
                  Re: Panasonic TH-L32C30Z troubleshooting

                  These are ideally what people like to see to help.

                  It's the US version CA, minor differences(caps)

                  Fitted to TC-32LX34 TC-L3232C TC-L32C3 TC-L32U3 TC-L32X30, could try searching the models or board version and see if any faults have been reported here?

                  Yours is TNPA5361AA, I saw one in malaysia but not cheap on Ebay,

                  I had a tiny 19" and it continuously blinked green, brief flash of the backlight. had one of the H-FETs shorted and what fixed mine was a new transistor and an Electro Cap known to be bad (jamiecon 85deg, 100uf ?)

                  I'm thinking C7513,7514. Q7503,7504(underside) be worth checking.There was no visual indication, just lucky another reader put me on to the cap, was about to bin it.

                  Could be the HV caps but I'm out of my area of knowledge really.

                  maybe track this thread, Aussie version, pretty sure 1 blink is backlight cct so there maybe a common issue.

                  https://www.badcaps.net/forum/showthread.php?t=41593
                  Attached Files

                  if you find these attachements useful please consider making a small donation to the site

                  Last edited by tw2005; 11-01-2014, 12:03 AM.

                    Comment

                    • ainsworth
                      Member
                      • Oct 2013
                      • 23
                      • jamaica
                      #6
                      Re: Panasonic TH-L32C30Z troubleshooting

                      I have a Panasonic tc-l32u3 I'm getting no display, when I press the power button that's the time the red light comes on and stays on but I see nothing on the screen.

                        Comment

                        • ainsworth
                          Member
                          • Oct 2013
                          • 23
                          • jamaica
                          #7
                          Re: Panasonic TH-L32C30Z troubleshooting

                          Can anyone help

                            Comment

                            • dskall
                              Badcaps Legend
                              • Oct 2016
                              • 2905
                              • usa
                              #8
                              Re: Panasonic TH-L32C30Z troubleshooting

                              Need good clear straight on pictures of back of tv with cover off and each board.

                              Need voltages from connector that goes from power supply board to main board. Will need pin#- PIN DESCRIPTION -Pin voltage in standby-Pin voltage when pushing power button and picture of connector on power supply board.
                              Format:
                              Pin# - Pin Description - Pin Voltage standby - Pin voltage power on
                              1 - XXXXXXX - XXv - XXXv
                              2 - XXXXXXX - XXXv - XXXv
                              3 - XXXXXXX - XXXv - XXXv
                              4 - etc.
                              I assume no responsibility for any stupid suggestions I might post.

                                Comment

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