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I have this TV. Just pulled it out of the box. Never been used before. It goes from bright to dim every half second and is getting faster. Picture is clear. Brightness giving a headache. What do? I'm

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  • 13 Answers

Go into your menu and check the options in brightness, and put down brightness and contrast, if that doesnt work the problem may be your computer.

Posted on Dec 27, 2012

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Posted on Jan 02, 2017

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  • 1139 Answers

SOURCE: Sharp LC-42D43U 42 in. HDTV fades and fluctuates in brightness.

Hello bcall8,

Have you tried watching the TV function when just viewing normal TV? Does the problem still occur? I think the you may have a signal problem in the path between the DVD player and the TV, check your cables. Now what might also be the issue is input of the TV try using different inputs, sometimes there are incompatibilities with some of the input ports and equipment used on those ports. This happens often. If all else fails I would get a schematic and start looking at the RF, HDMI, Composite Video, S Video, and component video inputs and start comparing signals with the information from the schematic.

I hope this helps,
Thank you,
Shuttle83

Posted on Dec 29, 2007

  • 84 Answers

SOURCE: help with settings - blurry SD picture

contrast full, brightness, tint, color, in the middle, then adjust sharpness for what suits your eyes, you may turn brightness and color below middle.

Posted on Mar 23, 2008

  • 7 Answers

SOURCE: Dim backround and display on westinghouse LTV-40w1 HDC tv

u will have to go into service menu to set sub brightness be carefull u may do more bad than good write down all valus before atempting to adj.

Posted on Dec 23, 2008

  • 50 Answers

SOURCE: TV Screen Dims during dark Scenes

Most likely you have the opc feture on. go to the menu under picture setting first option should be to turn on or off the opc. turn it of and should solve the problem.

Posted on Mar 18, 2009

  • 105 Answers

SOURCE: The TV brightness dims when the we get a dim scene

This is probably normal and called "Dynamic Contrast". Maybe this company has some other proprietary naming.

Basically, the Backlight (LCD) or Bulb (Projection) will be dimmed during dark scenes to allow the TV to make a deeper black.

Posted on Apr 29, 2009

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Ln55c650 keeps flashing bright to dim very fast after about 30 minutes of being on if i shut it off for a few minutes it goes away til about 30 minutes the picture never goes away just gets bright and dim...


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1 Answer

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My TV goes too bright at times and is too Dark on


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1 Answer

Sony kdf e55a20 picture goes black sound stays on


Thanks for updates.
Its time to replace Lamp. Please buy original Sony Lamp for Sony TV and avoid aftermarket or compatible parts for good performance of TV.

You can purchase original Lamp form Sony Accessories Store. Just type TV model in search box and see details by click search.
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1 Answer

Picture washed out, can't get it right


LCD TV TroubleshootingThe defective LCD TV may have the following common symptoms:

Symptom: No picture on screen but LCD TV still has sound.
Solutions: The problem is cause by defective inverter. Replacing ivnerter will solve hte problem. Symptom: Screen flash on and off between 1/2 to a few seconds, but power indicate light stays on and TV still has sound.
Solutions: The problem is cause by defective inverter. Symptom: Blue Screen but no picture
Solutions: The problem is cause by defective Main Board(AD Board). In some cases, this problem may cause by the defective Screen Controller board. Thsi board is mounting on teh back of LCD TV Scree. Symptom: Power light stays on but no display and sound
Solutions: The problem is cause by defective Main Board(AD Board) or Power supply board. Symptom: No Power or Power indicate light does not lits
Solutions: The problem could cause either by defective Power supply board or defective Main Board(AD Board). Symptom: Screen is half dim and half bright
Solutions: The problem is cause by defective LCD Panel.It needs to be replace.

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