Panasonic plasma TH-46PZ80U 7 red lights--fixed it--but now it's back

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  • Zelek11
    New Member
    • Feb 2014
    • 5
    • USA
    #1

    Panasonic plasma TH-46PZ80U 7 red lights--fixed it--but now it's back

    A little over a week ago my Panasonic plasma, model TH-46PZ80U, gave me the 7 red blinking lights of death. I started troubleshooting, trying to figure out which board(s) had gone bad. When I tried just disconnecting the ribbon cable from the SC board and powering on the TV, the blinking lights disappeared. So, I plugged the ribbon cable back into the SC board and for a week now have been watching the TV with no problems.

    Until today. Now the 7 lights are back. So I once again disconnected the ribbon cable from the SC, powered on the TV, red lights are gone, reconnect the cable, and TV is now working again. So I'm a little confused as to what is going on.

    My questions are:

    1. Why did removing the ribbon cable "fix" it for a week?

    2. Why have the 7 blinks come back?

    I have read that after fixing the SC board you should (re)install new firmware otherwise the TV will remember that it has a bad board. I have searched all over the web for new firmware for this model and can not find any. Is a factory reset in the on-screen menu the equivalent of resetting the firmware?


    Thanks
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