Question about Toshiba 46H84 46" Rear Projection HDTV-Ready Television

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Toshiba 46H84 tv turned off light blinking

My tv just turned off and the front light started blinking, so i unplugged it and plugged it again it tried to come on, but the screen it turned red and turned off again.
i can hear some clicking noises in the back before it turns off. same problem tv turns off has blue screen red blinking light next to power button

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  • buckkarene Dec 29, 2008

    Our toshiba 46H84 suddenly turned off. When plugged in, blue screen for a matter of seconds, and then black with red light flashing.

  • MikeFinck Mar 04, 2009

    After about three minutes my screen flashes green and the TV turns off with a red light flashing next to the power button

  • Anonymous Apr 09, 2009

    Screen went blank, then the power light started flashing.

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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.

Posted on May 22, 2009

1 Suggested Answer

dwn4lf
  • 2 Answers

SOURCE: toshiba 46H84 tv turned off light blinking

Sounds like a problem w/ the red tube.

Posted on Jan 07, 2008

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