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My picture has suddenly disapeared. I can hear it change chanels but the screen stays dark... it lights up enough that you know its on but nothing else. It happened suddenly while watching it, with no warning.... HEllllllP.....

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  • lorden1 Sep 11, 2009

    It is an LCD and I tuned it off for about 12 hours but still nothing the power/standby light works the same as always, red for standby blue for on. niether of them flash and the screen becomes ....
    it's hard to describe but it brightens enough that you know it on but it's still black, and when i try to bring up the menu controlls nothing shows on the screen but I can change the input ( I know how many positions to move from my manual), and nothing changes.

    it's not sounding good is it...lol


  • lorden1 Sep 12, 2009

    it is a Prima LC40K17

  • lorden1 Sep 13, 2009

    your response was very quick and useful. Although the first response didn't fis the issue, with morre time and info I'm sure it would have worked out.
    While discussing the issue with you I found my warranty was still good for 3 months and decided to let them deal with it.
    Thanx for the help
    Denis

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What is brand and model number of this TV?

Posted on Sep 12, 2009

  • SD Tech
    SD Tech Sep 12, 2009

    If you cannot tell me brand and model number, I may not be able to help you--the more information you give me the better I may be able to help you.........

  • SD Tech
    SD Tech Sep 12, 2009

    I cannot help you, I can find no information on this model and brand--I suggest next time you post you indicate the model and brand so a tech may be able to help you or not attempt to answer this question.

    Good luck to you and I hope you find the answer you are looking for.

    REGARDS, SD TECH

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  • Master
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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 on dvd with no receiver box connected.

If that does not work, and TV is still not responsive, then there is a fault condition.
if the led is on , or flashing, this indicate a diagnostic state called protection.
When the tv 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.

If instead you have an LCD TV, and you see a faint picture with no backlight, then there is a problem with the inverter.

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 Sep 10, 2009

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