Question about Panasonic TH-42PWD7UY 42 in. EDTV-Ready Plasma TV

1 Answer

Power on have the same problem as someone else posted in Jan 07. I turn on the Panasonic plasma screen, and the light turns green as if it is about to turn on, but after a few seconds it shuts back off and a red light flashes instead of the green that is supposed to show when the system turns on.

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  • Greg_hw Mar 01, 2008

    my TH-42PHD6UY has the same problem. Have you been able to fix yours by any chance? I would like to hear about your solution.

  • Gina1955 Apr 10, 2008

    plasma works for a while, switches off about after30minutes, red light blinking About 10 mins later can switched on - manually only.,Works for a while, and back to square 1...... Steps considered: chuck it to the wall....

  • keithhenson May 09, 2008

    Hi All,

    Same problem here. Panasonic 42PWD5.

    Now about 5 years old but already had the problem once - about a year ? (frantically searching for the repair invoice!) ago when we were told it was a failed power supply. Cost a packet to fix but all was well until today when suddenly the screen turned off. Turned back on & get a green light for a moment, then high pitched whine the screen blacks & red light flashes in a sequence of 2.

    Any ideas? Has it finally died?

    Have to say that it has been an awesome pice of kit - hence we were prepared to repair it last time.





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Depends on how many times it flashes RED.
On the units with fans (usually the HD models) a 6 blink flash code indicates improper fan rotation and the unit will shut down.

These blinks are counted as they go DARK, not as they light up.

Remove the rear panel but do not clean out the dust from the fans until you see which has the improper rotation.

Cleaning may help once you find the baddie, if not they will need to be replaced.

T Wiz

Posted on Mar 25, 2008


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Posted on Jan 02, 2017

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SOURCE: inability to turn on plasma screen

You have a power supply fault or one of the drive boards that drive the plasma screen is loading down the power supply. This power supply may be part of the entire main board. Good Luck

Posted on Mar 23, 2007

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Inability to turn on plasma screen

You have a power supply fault or one of the drive boards that drive the plasma screen is loading down the power supply. This power supply may be part of the entire main board. Good Luck

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