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Lcd tv I have no image on my tv, when I put it on I have light on my tv but image no

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  • rwgimp Jan 07, 2008

    My tv turns on but displays no image. I was watching tv and all of the sudden the screen went black. Everything is connected correctly. Sad thing is i just bought it and it had less than 8 hours of usage. Nothing displays on the screen no matter what i push on the remote or the tv.

  • mladine Feb 09, 2008

    I was watching TV and all of the sudden ni image appeared. There was

    volume, I can hear the Tv but can see no image

  • Anonymous Mar 12, 2008

    I also have an LG 42LC7D TV where the screen is blank, but I can still hear the audio. This happens about 50% of the time when I turn on the TV. After leaving the TV on for about 10 minutes (and not touching it) it fixes itself and the video appears. Everything is connected correctly. Is there a component has to warm up or something?

  • Anonymous Jul 09, 2008

    Same problem! Thanks Best Buy for making me wait a full week until service can showup!

  • whawkins68 Aug 19, 2008

    I have the same problem, It doesnt only happen with the tv, but no matter what you conect to the TV, PC, etc.. no image, but have sound. Also when you scroll through the source menu no image saying what source selected, my understanding it may be the PCB

  • Anonymous Dec 15, 2008

    my screen will flicker for a while and then go black, still has sound but no picture. It is random, some days no flicker at all, other days some flicker, I shut off the TV and turn back on and it seems to fix itself, sometimes I have to do this serveal times. I would assume it has something to do with the lamp.

  • snowleopard0 Dec 17, 2008

    when i press power button an orange light comes on in front, but there is no picture. i noticed a small green light on in the back also.... sounds like there is static for a second after powering, then no sound at all.

  • Anonymous Mar 01, 2009

    I have a protron pltv-26. It started with no picture but sound. Sometimes the picture would be green or scrambled up. If I turned it on and off enough it would eventualy come back on. Now sometimes there is now sound. The screen is complatle black. If you hit the menu button you cannot see anything. Do you think that it is the input signal circuit board? All other tv's in the house work fine on on the same cable. Other lcd tv also works perfect when pluged into the same cable.

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Sounds like you need new cold cathodes, shine a torch at the screen and see if there is a image there. If so they are not expensive but a bit hazadous as they do contain mercury so may be worth a visit to the repair shop.

Posted on May 25, 2009

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Is your cable shut off? Are you in video mode? Can I get a bit more information?

Posted on Dec 13, 2007

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Soniq PT42SH plasma TV power on. No back light and no pictures


SONIQ LCD TV REPAIR Blank flickering screen Energy ...

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Fix ya Soniq Tv once loaded up hit menu button then channel + then ... SONIQ LCD TV REPAIR Blank flickering screen Energy Saving Mode Issue ... Easiest TV repair - How to Fix Power [TV turns off, freezes, or won't turn on] ... Common easy LCD TV fix: bad picture screen rainbow colors - Duration: 4:04.

No Image & Blank Black Screen Flashlight Test - YouTube

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LCD & LED TV Repair - No Image & Blank Black ScreenFlashlight Test - How to Fix LCD & LED TVs ... Most LED TVs will have a t-con board, a power supply board, a main board and an LED ..... SONIQ Australia 1,718 views.

Soniq PT42SH plasma TV power on. No back light and no ...




Jan 08, 2016 | Televison & Video

1 Answer

My Sony LCD model no CX52 There r white patches and background images are not visible Screen is full of pathes what to do


The LCD television is a flat-panel television which utilizes a Liquid Crystal Display technology. It has two layers of glass which are polarized and stuck together. The liquid crystals are held in one of the layers. These liquid crystals pass, or block the light, to produce images on the screen when the electric current passes through it.

However, the crystals do not produce their own light. The light comes from the series of fluorescent lamps at the back of the screen. There are millions of shutters arranged in a grid, which open and close to release and trap some of the light that is not needed to create images. Then each shutter is paired with a colored filter which produces a sub-pixel. These are so small, that when they combine, they create a single pixel, which appears to be a single spot of color on the screen. With the help of the fluorescent lamps, the images created by the liquid crystals become visible to the viewer.

LCD television produces high image quality. They can be made very thin, which makes them less space-consuming, and the user can hang them anywhere. This makes them appealing to buyers.

LED TV's are actually very much like LCD TV's. They also have a flat-screen which utilizes Liquid Crystal Display technology. The only difference is their source of light, which is at the back of the screen. The LCD TV uses fluorescent lamps, and the LED TV uses LED (Light Emitting Diodes).

There are two types of LED backlighting. One is referred to as Edge lighting, and the other is called Full-Array lighting. With the Edge lighting, the series of diodes are arranged along the outside edges of the screen. When there is power, the light is distributed across the screen. Alternatively, in Full-Array lighting, there are several rows of diodes behind the entire surface of the screen. They provide more control over brightness and dimming, because the diodes can be turned on and off independently.



LED TV's are LCD TV's with a new backlight system. They are newly developed for LCD's, because Light Emitting Diodes are said to give more balance in color saturation, and use less power than the fluorescent lamps. LED TV's are the newest version, and that's why they are currently more expensive than the standard LCD TV's.

Summary:

LED TV's are still LCD TV's. They are just considered to be the newer LCD TV version because of the new backlight system used. The LED TV uses Light Emitting Diodes, while the standard LCD TV uses fluorescent lamps. Although they both still use Liquid Crystal Display technology. The main difference is the part behind their screen, which is the backlight.


Read more: Difference Between LCD and LED Televisions ' Difference Between ' LCD vs LED Televisions http://www.differencebetween.net/object/difference-between-lcd-and-led-televisions/#ixzz2Bb0rIue6

Nov 08, 2012 | Televison & Video

1 Answer

The green light comes on but the screen wont light up, meaning the tv wont turn on


hi,
You have to check the back light of your lcd TV. All lcd screen have a back light to illuminate the pixels. you can conform is the back light is faulty or not by watching the lcd screen nearby. Watch can you see any image (negative image) on the screen. you have to look very closely. if you see any image on the screen then the back light or the back light inverter is faulty.

You have to check the back light inverter board. Normally in lcd monitors you can see three circuit boards. power supply, mother board, and the inverter board. If available then try to replace the inverter board. There are high voltage transformers in this board. There is a chance for its winding get short. You will not get the transformer in open market. Try for the inverter board .
ok

Jun 09, 2011 | iSymphony LC24IFH7PB LCD TV

1 Answer

No images only the sound


hi,
You have to check the back light of your lcd TV. All lcd screen have a back light to illuminate the pixels. you can conform is the back light is faulty or not by watching the lcd screen nearby. Watch can you see any image (negative image) on the screen. you have to look very closely. if you see any image on the screen then the back light or the back light inverter is faulty.

You have to check the back light inverter board. Normally in lcd monitors you can see three circuit boards. power supply, mother board, and the inverter board. If available then try to replace the inverter board. There are high voltage transformers in this board. There is a chance for its winding get short. You will not get the transformer in open market. Try for the inverter board .
ok

Jun 09, 2011 | Sanyo 42K30E 42 in. TV

1 Answer

Tv has died


When the TV is on, if you look at the screen and can see dark images, then you will need to replace both the inverters. The inverters drive/power the back light inside the LCD to show the images. You may have to try and different channels and or inputs to truly see if you can see dark images while the TV is on. If you are hearing audio from a channel or an input then you should be able to see the dark images if just the inverters are bad.
If the screen is dead black without any dark images, then typically your LCD screen/module is bad.
If the TV powers up (power supply is good), you have audio and the remote will work with the TV (the main board is good), the only parts left is the inverters or the LCD screen/module.
I can get you LG part numbers if you need them.

May 21, 2010 | LG 42LC2D 42 in. LCD HDTV

2 Answers

Hello, LCD Problem. I have sound but no image. Black screen. No access to the configuration menu. Someone can help me ??


I think your LCD TV lost back light that is why you have sound but no picture to see it as LCD TV requires back light to present picture on its screen.
Please intimate model and brand of your LCD TV to provide you more info.

Sep 17, 2009 | Televison & Video

1 Answer

2004 Phillis 47 " flat panel ghost image


Yes, it called ghost image. You can try to go in the service menu, and scroll to ghost image. Turn tv off, wait till red light stops blinking, and then on the remote press the input button. at the same time press the power button on the tv. this should put you in the service mode. If nervous about this call tech assist at Hittachi.

Nov 25, 2007 | Hitachi 50V500 50 in. HD-Ready LCD...

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