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I have a audiobox LCD TV Model # FPE3205 THE PROBLEM IS THE SCREEM IS SMALL BLINKING OR FLASHING AND SOME TIMES SHUTDOW WHAT CAN VE THE PROBLEM?

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    I have a audiobox LCD TV Model # FPE3205 THE PROBLEM IS THE SCREEM IS doing SMALL BLINKING OR FLASHING AND SOME TIMES SHUTDOW WHAT CAN BE THE PROBLEM?

  • YES THAT WHAT I MEAN WHAT DO YOU THINK IS THE PROBLEM

  • I have a audiobox LCD TV Model # FPE3205 THE PROBLEM IS:

    SMALL BLINKING OR FLASHING screen AND SOME TIMES the tv SHUTDOW.

    WHAT CAN BE THE PROBLEM?

  • Thank You!

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Hello,

The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.

But more often bad capacitors causes problem on the power supply board. I do not think the power board needs replacement, rather those defective capacitors is causing this issue. Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors). After replacing these capacitor(capacitors) most likely the normal operation will be restored. Or you can by a refurbished complete power board to save you some stress.

Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.

If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

I hope this helps.

Regards.

Posted on May 20, 2011

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What exactly do you mean by screen small? Image with huge black scope. Can you take a picture of the screen and upload it to imageshack.us and get me the link to to the image, so that I can have a look?

Posted on May 20, 2011

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  • eagle338
    eagle338 May 20, 2011

    I am not sure I got it this time either. By small blinking do you mean that the screen is flickering?

  • eagle338
    eagle338 May 20, 2011

    Ok got it. It looks like you have an issue with the backlight inverter or the power supply board. There is a 12V line that goes to the inverter circuit and we are to identify whether thats the source of the problem. DO you have a multimeter and know how to use it?

  • eagle338
    eagle338 May 20, 2011

    Whats the deal? No body can tell you what the problem is without some testing it. There is no instant solution and anyone who gives you one is taking a shot in the dark. Good luck is all I can say now!

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