Question about LG 42PX5D 42 in. Plasma HDTV

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Lg 42' plasma tv shut it self on and off automatically

Hi i have a 42' lg plasma tv , it suddenly started shut itself on and off by itself, i dont know what to do with it , please help ...

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  • diallo_1978 Jan 11, 2009

    I HAVE A PROBLEM WITH MY PLSMA TV,IT GOES ON AND OFF IN SECONDS,I HAVE TRY PAY FIT IT UP,BUT NO WAY.PLEASE CAN YOU EXPLAIN TO ME WHAT THE PROBLEM.

  • David Ranshaw May 11, 2010

    lg has firmware upgrades. goto their site and check to make sure your tv has the new firmware. they are really good on instructions of how to do so.

  • Anonymous Mar 21, 2014

    LG 60PK250 60 Plasma TV TV turns on and shuts right off

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  • 4 Answers

Sounds simple but check your sleep timer is off.

Posted on Jan 12, 2009

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1 Answer

My 42 lg plasma shuts off seconds after turning it on... Just all of a sudden last time used no problem


Does it give any image att all and have you tried another data source, dvd-player and can i have exactly the numbers of your tv, like how old it is . The change that you have a panasonic screen is 90% and for me still the best way to watch tv, but is it just hd or full hd and what did you pay for it .gr richard

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Theres a short between the start-up processor signal on the interface board and power supply. It keeps sending the same start-byte over and over again to the power board. This could also be a DC high voltage shutdown on the power board its self. Now the tv is in protection mode to prevent further damage. Get it serviced at your local repair center. If its under warranty take it back.

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Hi,

I only hope you have connected the tv with a stabilizer or is it inbuilt? This might be because of Voltage fluctutations. Also, check the connectivity of the internal power card.

Regards,
HP

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With a problem like this, I would use the warranty for the TV.
It's possible a circuit board failure has occurred and the TV is automatically turning itself off to protect it from further damage. Is normally called " Protection Mode " for most TVs.

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Since your plasma is less then a year old, I would suggest to contact the manufacturers to get it fix under warranty. If the plasma keeps shutting off by itself, that is not normal and should be repair.

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caypianan@yahoo.com

Oct 25, 2008 | LG 42PX5D 42 in. Plasma HDTV

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Lg plasma mt 42pz10


I wish I had an answer for you but I'm in the same boat. I've got a 42pc5d and it's doing the same thing. I'll turn it on using either the remote or the power button on the unit itself. The LED will blink either two or three times, then shut itself off. I tried plugging the unit into a different outlet. I tried unhooking all inputs (PS3, DVD player, antenna, etc). The tv was still shutting itself off. I called tech support and the lady who answered asked me if there was a power button on the unit. Well, of course I understand LG has hundreds of models but I felt like I was dealing with someone who didn't care enough to even open the manual to see for herself. Anyway, after a "reset", the TV is now nothing more than a very expensive paperweight. To say I'm displeased is an understatement.

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