Question about Panasonic Th-42px25u/p 42-inch High-definition Plasma Tv

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I have Panasonic High definition plasma TV. Model No. TH-42PX25, Manufacture 2004. Will not turn on. What could be causing the shut down problem?

I have not yet taken the back cover off. I notice the when turning the set on, the scream attempts to turn on then shuts down. I also notice that when, turning the set on, am getting 12 blinks on the lower left side LED.

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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  • 330 Answers

SOURCE: my panasonic tv got problem

when it is warm, shut off, then after take a rest it will automatic on again, probably you need change the on anf off switch.

How long have you had the TV?

Posted on Jul 10, 2008

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  • 1 Answer

SOURCE: I have a panasonic plasma tv. Model #

I don't know but I'm having a similar problem. I have a plasma
TH-50PZ77U. It will run for a while and then shuts off. Also, the volume goes up and up and then it shuts off at times. Like I have a ghost here. I had both of my sat. recievers replaced. It seems to get worse over time with shut down. I called panasonic and they had no info and denied this was an issue but I beg to differ from my research here online. It's only a few years and we paid lots of $$$. They gave me a # for service 1 hour away!

Posted on Jul 11, 2010

lovejoy91
  • 691 Answers

SOURCE: My Panasonic Viera TH-42PX80U plasma TV shut down

Bad power supply check shopjimmy.com

Posted on Jan 13, 2011

  • 184 Answers

SOURCE: Panasonic viera Plasma TV model TH-P42X10A The tv

Hello,

The power supply board of the television is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

I hope this will help in solving the problem....

Posted on Aug 01, 2011

  • 24 Answers

SOURCE: Panasonic th-42pz80u...dead set...red LED blinks

I'm no expert but I have the same tv I'm trying to fix,different problem from yours.I think you can take a resistance reading from that pin to ground and if there is a short,you can start unplugging different boards and when you have the right one the short will go away,if not its the power supply.Put in a search on google with something like board layout for TH-42PZ80U and click on the link 11th generation and you can tell if I told you right or not

Posted on Oct 13, 2011

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I have a Panasonic plasma TV model# TH-42PX75U --- here is a link to Panasonic web site for this model...


Unfortunately your going to have to have it serviced by an Authorized Panasonic Dealer. Independent shops will not be authorized to order parts without the consent of Panasonic. They are rough to deal with.

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1 Answer

I have a panasonic plasma tv. Model #


I don't know but I'm having a similar problem. I have a plasma
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If using component cables check connections at TV or from source. If all rae ok the try source on another tv before getting video input circuit board replaced on tv

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ftp://ftp.panasonic.com/television/om/th-42px20_en_om.pdf

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As posted for a similar problem:

This is an issue with IC 803 on the Z board. This is a 3.3 V regulator that supplies this voltage to the slot card cage. Most input boards use this voltage EXCEPT the component board which is why it keeps playing along whike the DVI, HDMI, or composite signals will cut out after warm-up.

This is a surface mount multi-pin IC and is a bit tricky to replace.
The entire board is PN# TNPA3198xx with suffix determined by what model 7 series plasma you have.

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T Wiz

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2 Answers

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CHANGE P.A BOARD. THIS BOARD IS FOR TUNNER VOLTAGE..IF THIS BOARD IS BAD, THE LED FLASH 10 TIMES IN RED AND THE TV NO TURN ON.

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