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My nexus plasma tv model 420 powers on have sound no picture

My nexus plasma tv model nx420 powers on with sound but no picture

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 6 Answers

SOURCE: 42" Toshiba Plasma TV no picture or sound

My experience with 42" plasma tv's with no picture or sound was a missing power supply voltage. On the power supply board check voltages on the plug. The voltages should be marked on the board,

Posted on Mar 02, 2008

Drummernick
  • 440 Answers

SOURCE: Hitachi 50" plasma no picture

well they give usaly 1 yr parts labor i would get it in asap to be fixed bad power thx nick

Posted on Feb 07, 2008

  • 1 Answer

SOURCE: hp 42 plasma tv cptoh 0602 I get sound but no picture

HP is now fixing this problem for free. all you need to do is to call them, even if your warranty has expired. I have The same problem like you, and my warranty has expired, I just called them on Sep 19th 2008.
do not hesitate to call

Posted on Sep 20, 2008

ginko
  • 19396 Answers

SOURCE: plasma tv has sound but no picture

Check all the cable connections at the back, if you are using an external receiver , then check the Video cable, eventually try a replacement one.

Try leaving the TV set unplugged for a couple of hours, this will drain power completely and, if there is no real fault , this can fix the problem.

If that does not fix it, then thereis an internal fault.

Common faults that cause audio but no picture concern, digital board, controller board, sustain boards, Plasma screen ribbon cables, and plasma display.

Call the number listed on the owner manual to get assistance.

If the warraty is expired no longer than three years, ask the price fod r a warranty extension calling same number in the manual.

Posted on Nov 22, 2008

SOURCE: PHILLIPS PLASMA TV MODEL #42PF9431D/37 Heard

Hi, Usually any "Pops" are an Electrolytic Capacitor "blowing up" quite literally, or "Gassing" as it is called. This happens due to some sort of power problem. Capacitors hate AC Voltage and Current, and Heat and Over Voltage. All of which, I have no doubt it was exposed to before it went "Pop" This is only a symptom of a far greater problem, to come, no doubt, soon, the rest of the set will fail too. Please DO NOT USE. this set any more, you risk fire or explosion or both. If you MUST use it at least unplug at bed time. Theses days home repair except for the most rudimentary problem is not feasible, setting aside the safety aspect. In my professional opinion, I would recommend, that you get a "Quote" for repair from a Philips Authorised Service Agent This is very important, that you contact a Philips head office and ask for a referral. This way at least you can make a decision to repair or replace.

Posted on Apr 01, 2010

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This sounds like a problem with the power board. Look on you tube for troubleshooting video's for your model. It depends how confident you are in working inside a TV but you can pick up a second hand power board fairly cheap on ebay. Remember always to specify the model number when searching for things.

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If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
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The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
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New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
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1 Answer

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My experience with 42" plasma tv's with no picture or sound was a missing power supply voltage. On the power supply board check voltages on the plug. The voltages should be marked on the board,

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2 Answers

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sound no picture. well not entirely bad this idicate your signal getting through and you have partial power. however this could mean that the actuall panel is faulty. if so new set time. What is the model and make of set.

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