Question about Panasonic TH-42PA20U/P 42 in. Plasma EDTV

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Panasonic TH-42PA20 TV manufactured Jun, 2003. 3 days ago TV shuts off after from between 10 mins to a few hours. After shut off red power light blinks six times and stays solid on 7th blink for a few seconds and repeats this cycle continuously until I pull the plug from wall outlet. Is this the power supply board and can it be replaced by my elec. engineer bro-in-law (which part #) or is it some other part that needs to be replaced?

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  • 3 more comments 
  • TH42PA20 Apr 16, 2008

    I have the same problem. When the plasma is warm it switch of with a flickering stanby light. Afther a few minutes switched off / on he startup again.

  • Anonymous Oct 19, 2008

    I have the same problem...my set is 5 years old and the shutdown problem started this week!!

  • mmped Nov 17, 2008

    I have the same exact problem

  • fellers Feb 20, 2009

    Same!

  • hai_bui Apr 14, 2009

    I have the same problem. Any solution yet?

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 1 Answer

SOURCE: panasonic viera hd tv th 50pz80u

We had a Pioneer that did the same thing. We called a Pioneer Service Center. It appears there was a recall on the Power Supply. They fixed it in our home at not charge.

Posted on Jan 07, 2009

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  • 1 Answer

SOURCE: my panasonic plasma TH-42700U it turned off while

solution of light blinking

Posted on Jul 11, 2009

  • 108 Answers

SOURCE: I have the same problem Panasonic Plasma TV wont come.

Alot of times capacitors on the power supply circuit board will go bad. They will bulge/dome or dry up which will cause this problem. Bad caps dont hold a charge, which is needed to maintain a voltage. The circuit board is two sided which makes replacing the caps difficult, and the board can be damaged and have to be replaced. Taking it to a repair shop may be cheeper and safer then doing it yourself. Having two-six caps replaced is a lot cheeper then a new board.

Posted on Aug 15, 2009

tvservice306
  • 458 Answers

SOURCE: Panasonic TH-50PZ80U tv, error- 2 blinks

1. Reseating the connector P25 may solve the problem. If it does not.
2. Unplug the unit andd disconnect the connectors A5, A6, and A7. Apply power to the TV. If a White screen comes up and all voltages check normal, replace the P board.
3. If the TV stays on after isolating the SC board, then replace the SC board and the D board; it is likely that the fuse on the D board is blown.

Posted on Dec 06, 2009

  • 8457 Answers

SOURCE: My Panasonic TH-42PZ700U 42in. TV doesn't turn on

Power supply board have dead capacitors.U know how to solders?Buy these capacitors to replaced them to have power back.Or u can buy a whole power supply board for the replacement at these websites Shopjimmy.com,Ebay.com for refurbish power suppply board.

Posted on Mar 04, 2010

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