Question about Toshiba 42HL167 42 in. LCD Television

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I have 3 blinking lights and tv wont turn on

My tv wont turn on and all it is doing is blinking 3 lights. the manual says that indicator is the tv warming up. but it has been doing it for over 3 hours

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  • dndgeez Dec 07, 2008

    Same problem here except I have a 52 inch. My television is still under warranty so I will report back what they did to fix it.



    Also, the tech said I should get an extended warranty, which leads me to believe that this set has problems.

  • dndgeez Dec 10, 2008

    The current diagnose from the TV repair guy is a new power supply is required. Solution???? Not sure.....

    Since there are none in stock, they are quoting a 30 day projected ship date for the part.

    I'm still suspicious about the diagnose since it takes a switching circuit to fire up the Power Supply, and the switching circuit is where the most susceptible parts are, such as a Power Transistor. But then again they could be a complete unit.

    Any insight on this would really help for future issues.

    Thanks-
    D

  • ionicplague Jan 01, 2009

    I also have this problem. Occasionally happens in the mornings.



    You can unplug the TV for a few seconds, plug the TV back in and wait till the yellow/orange LED stops blinking, and then turn on the TV. Should power on almost instantly, mine does anyways. Thanks

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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

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