Panasonic TH-55FX600 - No standby LED

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  • Xrious
    New Member
    • May 2024
    • 4
    • New Zealand
    #1

    Panasonic TH-55FX600 - No standby LED

    Got a TH-55FX600 that is showing no signs of life.

    Outputs from the P board look good, but no 12V on the A board.

    Very similar to https://www.badcaps.net/forum/troubl...3e-identidy-ic but where Tibd has 3.3v on the EN pin I have nothing, no voltage at all.

    Looking at the diagram for the IC I can see the enable is W_OPCTRL9, but I can't find a source for this, can anyone help please?

    Stu

    Click image for larger version Name: image.png Views: 1 Size: 7.0 KB ID: 3264024
    Last edited by Xrious; 05-02-2024, 09:00 PM.
    Tags: None
    • Xrious
      New Member
      • May 2024
      • 4
      • New Zealand
      #2
      Typical, just after posting and re-reading for the 4th time I think I understand, this is a PWM signal from the main IC?

      So test by injecting 12V in to the bus and see if the rest of the TV is working or just replace the A board?

      Sorry, typing and thinking at the same time..

      Stu

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