Question about Panasonic PT-47WX49 47" Rear Projection Television

1 Answer

Tv won't turn on

Small vertical box shows in top right corner for a second then screen goes completely black again. power button flashes on and off red. I am not sure if my tv is a rear projection or a simple plama tv. It came with my house and is built into the wall. It is a 52 inch screen.

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  • dullahbugg Dec 13, 2007

    This is so weird mind did the same thing 2 days ago. I wonder if this thing has a reset button.

  • alliott Jan 12, 2008

    Mine did the same thing a week ago. I wondering also if the tv has a reset button as well.

  • Anonymous Jan 19, 2008

    Ours started doing the exact same thing last night. Any thoughts on what the problem is?

  • Anonymous Feb 01, 2008

    I also have the same problem and at the same time, mine went down a week ago. i took off the back and took a look while powering on and one of the resistors? on the tuner board on the left started to glow red hot then click like normal and it goes into shut down mode. something is shorted out and is causing the circuit to heat up. what is weird is all of these failures at the same time I've seen the same complaint on other web sites and they all started around sept 07 through the present.its almost like it has a built in life timer or a certain amount of on off cycles in it and thats it (planned obsolecence). this is not the first time I've had trouble with it, the cyan driver went out and the color went wacky $1200 for the tv $400 to fix the cyan driver now estimates are around 400 again to fix the problem if the parts are available (2002 tv). new 50" plasma at wal mart in my future.

  • Anonymous Feb 23, 2008

    just brought new panasonic plasma tv got it home tv comes on the switches itself to standby with red light flashing help!!!

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  • Master
  • 4,402 Answers

Unplugging overnight resets the TV.
convergence ic are the most likely gone bad
however it could also be
that you lost power regulation....or you have what seems to be excess Hi Voltage or arcing
Now the regulator could be at fault or your SENSE line could be falsely triggering due to a change in a resistor or zener diode or even a bad sense line from your splitter...
Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929

Posted on Jan 30, 2008

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Posted on Jan 02, 2017

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Just to reset first before proceed another procedure;

Resetting the TV
NOTE:
Some TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.
1. Unplug the TV power cord from the power outlet for 4 - 6 hours.
2. Unplug any connected devices (DVD, Set-top boxes, etc...)
3. Press and hold the TV power button for five seconds.
4. Plug the TV power cord back into the power outlet and turn on the TV.
5. Open the on-screen menu to confirm that the TV is responding again.
6. Turn off the TV and reconnect the devices.
7. Turn on the TV.

Hope it may help you;

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