Question about NEC MultiSync LCD4010 40 in. Television

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Picture no sound

Sound ok no picture backlight~ok?

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  • alanvee Mar 04, 2009

    Powers up, no image, no input ID comes up, backlight is on.

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We have the same problem here too. Please email me if anyone has a fix action to this.

Posted on Sep 16, 2008

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When the tv set is put on, no picture shows but the sound is ok


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No picture


Sounds like you have a backlight problem. To verify this, turn on the set, dim the lights in the room, and shine a bright flashlight on the screen. If you see a faint picture you have a backlight fault. It could be as simple as a bad capacitor in the power supply, or a faulty inverter board, or in rare cases a bad backlamp.

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Apr 03, 2012 | Flat Panel Televisions

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Black screen with sound no picture


Hello
You haven't either given its Brand name or its Model number. Anyway, as it is an LCD TV, this is common fault to all brands. Check its backlight CCFL tubes, and the backlight inverter board.
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Feb 07, 2012 | Flat Panel Televisions

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What does it mean when the picture goes out?


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There are so many reasons for picture to gets out. The first amoung them, is of its backlight itself. If the backlight CCFL tubes wont light up, there will be no backlight to illuminate the picture. If baclkight inverter board has damaged, backlight CCFL lamps won't light up. The most common fault with LCD TVs are backlight failure itself. The second one is of with its main video processor board. In short, main board itself. You have to check and make sure which one is faulty. You must ahve sound knoledge in electronics to proceed. OK.

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1 Answer

No picture on the screen it is totally black and i do get sound.


There will be a problem with the backlights not being switched on, you would need to check if you are getting the supply voltage to the Inverter board (24V). If not check the power supply, if it is present then check if the backlights are functioning with a backlight tester, if these are ok check the capacitors on the inverter board. If the backlights are faulty then a replacement screen would be required.

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