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I have developed yellow dots in screen of new LCD tv what causes this and can it be repaired

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I can only assume you're talking about a PC LCD Monitor.
How many yellow dots will tell you whether or not the manufacturer will replace. If it's 20 pixels in the same square inch then you might have a case. Inexpensive unknown brand name LCD's are known to have issues with random pixels. For that matter so have brand name LCD's, but less frequently. Having 1 or 2 bum pixels is not that uncommon. Call the manufacturer, though, You never know!

Posted on Jul 17, 2008

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Posted on Jan 02, 2017

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Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

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Contact the authorized service centre for Sony. You can't repair this fault. It is related with its display panel. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

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If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
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1 Answer

White line across screen


If your LCD TV or monitor has stopped working, or is displaying one of the following
symptoms, then it's a candidate for some new capacitors
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- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can
examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life
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Take it to a repair shop.

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1 Answer

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1 Answer

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You have a problem with the optical engine- The only repair would be to change the engine for about $500-$1,000 plus labor. This is a major repair (sometimes caused by dust particles getting on the LCD panels inside the engine, but disassembling the engine to try and clean it is not a reasonable option)

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most likely the yellow dot is due to a burn in the picture on the "green" lens. It's not removable because it's burned it, but you can try cleaning it because sometimes, dots are caused by dirt. The worst that can occur is that if the dot is permanant.

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