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Two thirds of picture mainly on the left side dark

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  • Samsung Master
  • 933 Answers

If this is a LCD or LED TV, it sounds like a faulty screen for sure

Posted on Oct 30, 2013

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Posted on Jan 02, 2017

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Why would the picture on my Sony Bravia KDL-40WL140 looks great on the left but begans to fade getting dark and dark for 3/4 of the screen? On left side its very dark and the images look ghostly.


Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Sep 14, 2016 | Sony Televison & Video

1 Answer

HELP! Olevia lt37hvs screen went blank. No Sound, panel buttons wont work. Backlight is only on on half of screen.


if you had audio i wold say its most likely the Tconn or its upper two connections to the Panel itself. But since you dont have any sound either I would assume its either the LVDS cable from the main board to the Tconn or the Main board itself as audio and video are produced on the main board, You can get replacement boards from www.tvrepairworld.com

Aug 12, 2012 | Olevia LT37HVS 37 in. LCD HDTV

1 Answer

Sony KDL-52WL130 Dark and blurry on left side of screen . Also vertical lines on left side of screen


The TV requires thorough servicing and this might require attention by a qualified service technician.

Jul 12, 2012 | Televison & Video

1 Answer

Left side is dark and right side is good


The LCD sets use backlights and also a pair (some models combine both into one unit) of inverters- one drives left side and the other right side.

You could have a bad inverter (some versions call it T-con) or even a bad display panel(main screen unit).

In most cases this is not a do it yourself repair.

May 17, 2012 | Sony Bravia KDL-46V4100 46 in. LCD HDTV

1 Answer

Left side of screen is dark


When you say the screen is dark, do you mean that the picture is still faintly visible or is the left side black with a sharp edge between the black and the visible picture?

If the screen is dark with a faintly visible picture then you have a faulty backlight. This could be due to the inverter board, which can be repaired or replaced, or it could be the CCFL tube which is a bit harder to replace.
If the left side is completely black with a sharp edge then the LCD itself is faulty and may require replacing.

In any case, any of the problems listed above should only be repaired by a competant electronics engineer.

Feb 14, 2011 | Philips Televison & Video

1 Answer

I have a 50" RCA Scenium which I purchased in 2003. ($3000) I changed my third lamp yesterday...(the picture was getting dark after 3 years), and was very happy with the picture. Today, after about 2 hrs...


Hello,

No, you do not have a bad circuit board, the problem is still from the lamp you fixed on it. Have it checked once again to see to it that there was no slight difference in the way you have been fixing it.

If you have a bad circuit board, there would be a complete alteration in the functioning of the television.

Since the problem has to do with the lighting and picture of the television, it has to do with either the lamp or t-com board, so check them both.

Take care

Oct 10, 2010 | Televison & Video

1 Answer

Red Lights on the Power button blink and picture goes dark


60PL9200D/37 When I unplug it for a while and turn it back on, the picture starts to come on, but it turns dark. And the red lights on the left and right side of the power button blink. Sound but no picture.

Feb 02, 2009 | Philips 60PP9202 60" Rear Projection...

1 Answer

To dark


Hmm.. Your cellphone Leds could be broken.. :/
Try pressing the following keystrokes (and joystick for left/rigth):

Right, *, Left, Left, *, Left, *.

A new menu should be displayed on your screen.
Not sure of the english descriptions of these menus, I'll just tell you to enter the third menu item. (or press 3)
This is the test-menu for your cellphone. I certainly had much fun messing thru this menu, but for now try enter '1' for running a maindisplay-test. Your screen should cycle thru a colorful test, mainly displaying red, green and blue colors :)
second try the 2nd menu item, which test the lights/LEDs.
If this doesnt make your cellphone flash, on and off, with a 'Ok'-message, the LEDs may be out :/

Please reply if you tried this! :)

Sep 02, 2007 | Sony Ericsson Walkman® W880i Cellular...

2 Answers

Shrinking Picture


sounds like your main power supplyis going bad . It supose to be 130 dc but I'll bet its down to around 90 to 100 volts!!! its probably the main filter cap or the regulator IC . hard to say without measureing the b+ good luck

May 01, 2006 | RCA HD61LPW42 61" Rear Projection HDTV

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