Question about Toshiba 46WX800U 3D LCD TV

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My toshiba 46wx800u tv keeps comming on and off by itself once the cord is plug in....the power light keeps blinking blue and the led light blinks green.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 8 Answers

SOURCE: Olevia 537H-B12 Won't Power ON

try looking at the board inside the TV for bulged capacitors see polaroid thread. this is the problem on the polaroid could be the same here.

Posted on Sep 16, 2008

ginko
  • 19396 Answers

SOURCE: Turned off by itself, blinking red led at front

The clicking sound is the internal protection switch that kicked in because a fault had been detected.

First ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem on dvd with no receiver box connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the Monitor goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic chargesaccumulating on capacitors, or because of a wrong voltage read by themain chip on your monitor controller board. this started the protectioncircuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occurr are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing statebecause of the video cable.

Try moving the video cable, and if the cable is not built in, then also try a replacement cable.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

Posted on Mar 15, 2009

  • 1 Answer

SOURCE: power led blinks but no picture or sound

The number of the small white connector on my plasma was PJ63A and is located on the left side. Thanks again to mchale420.

Posted on Apr 24, 2009

Senco
  • 51 Answers

SOURCE: Toshiba 50HP95 - noise in back of tv and then turned itself off

I would contact guy at
plasmatech@gmail.com
he has great expertise and all parts for Toshiba Plasma TVs

Posted on Aug 28, 2009

  • 534 Answers

SOURCE: Blank screen two led lights blink twice and then

The led blinking is an error code from the internal processor - defining the nature/area of the TV's internal problem.
A service manual (if available) will de-cipher the codes.
The tv will probably need to be repaired by a service technician.

Posted on Oct 07, 2009

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Toshiba hdtv 37rv530u fails flashlight test. Green light on main board lights up inverter board flashes a blue led twice. Can the led screen itself go bad ? Or do I have multiple boards bad?


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electro-medical.blogspot.com/
If blinks continue without any pause, the main board is faulty.

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1 Answer

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Tries unplug,replug the tv an hour later.Now,the tv it resetting itself back to the factory setting.The tv should work now.Not,than the power supply board is dead.That the board,where the power a/c power cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

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Ur tv power supply board have dead componnents call capacitors.These capacitors are leaking gas,and it bulges up on it top or puff up on it top.These capacitors parts are dead,they must be replaced.U know basic electronic's and soldering?Take ur tv aparts,the board where the power cord plug into it.That ur power supply board,searches all around for these dead gas leakage capacitors,replaced them.Ur tv power LED light will be stable and the tv power will work again.Or tries websites like Shopjimmy.com,ebay.com to buy a whole reburbish power supply board for the replacement.

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My friend gave me his 42HL167 after this problem started after a power event during a storm and I managed to fix it by reloading the firmware.

I posted instructions on my website at:

http://www.benjammin.net/www/pages/techtips/Toshiba-Regza-42HL167.html

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1 Answer

TV power light blinks off and on and TV dont come on


I had a 26 inch Mitsubishi that developed problems as it aged.  Whenever it went into a diagnostic mode the power light would blink and the set would go through a series of screens to self-test color, focus, sound, etc.  Usually it would then reset itself and run fine.  Once I had to have it serviced and they replaced a mother board.  Eventually (after about 14 years) it just died.

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1 Answer

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The TV is on protect mode.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

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