Question about Toshiba 57LX177 Television

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Toshiba 57LX177: Right side of screen darker than left

Toshiba 57LX177: Right side of screen darker than left, occasionally displays horizontal lines and pixelation on right. Is this related to inverter board?

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I am not sure...but I have the identical problem. I believe the vertical lines are caused by the inverter board and the darkness is caused by the one of the back lights that needs to be replaced. I am tearing my unit apart now and will find out.

Posted on Aug 09, 2010

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I have a Toshiba 55L6200U that recently started showing horizontal lines that are darker on the right half of the screen and lighter on the left side. These are visible with any input or on TV and also...


Back - light problem. [CCFL lamps inside it]. Check and replace damaged CCFL lamps. 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/

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Check its back light CCFL lam of that side, which look darker. Replace it.

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The other unpleasant possible cause is where the left board is connected to the Display Panel (entire front screen unit) you have a problem inside that Display Panel and that is fatal as there is no way to get INSIDE the panel---it can cause both lines and a dark picture on one side of the screen.

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If I send you its schematic diagram and give you instructions, can you follow me?

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start>control panel>display>settings>advanced>monitor

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yOU ARE HAVING A PROBLEM IN HORIZONTAL CIRCUIT OR IN YOUR POWER SUPPLY kindlyu take your T.V tO A QUALIFIED TECH to repair it.ypur problem could be a faulty capacitor ,flyback or horizontal output transistor.

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