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Samsung LE40M868D lcd tv does not recieve any channels and the screen has gone abit darker? please help

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5 Suggested Answers

Astrobyte
  • 110 Answers

SOURCE: Picture gone from TV Model LE46M51B

I suspect that your backlight has gone out. If you shine a light on the screen can you see remnants of the picture that should be displaying? If so, it's definitely the backlight, and most likely the power inverter for the backlight. You can probably find a replacement inverter, but you may need a repair manual to install it. I'd recommend checking the warranty status first and sending it in for repair if you can.

Posted on Feb 17, 2008

  • 2 Answers

SOURCE: LCD TV SCREEN PROBLEM RED HORIZONTAL LINES OF DOTS ALL OVER SCREEN PLEASE HELP

I unplugged the TV and now the picture is back.I read that the LCD's are vunerable to static build up so unless my daughter is using her TV I unplug it.

I was thinking about getting a large LCD for the family room but I'm not going to until they improve on this technology.

Good luck to everyone!.

Cheers.

Posted on May 08, 2008

welcomejee
  • 10594 Answers

SOURCE: 32LG3000 LCD TV shows no picture when resuming from standby

Hi,
It seems just channel stored data issue.
Please perform Auto Preset / Auto Channel / Auto Tuning (mentioned menu items) and store all channels again.
Hope problem will resolve.

Posted on Dec 18, 2008

  • 718 Answers

SOURCE: how hard it is to replace by yourself main board Samsung LN-T4065

You need to do some more diagnosing of the problem. If you get sound and change channels take a bright flashlight and place it again the screen. Look for an image around the edge of the flashlight.
If you see an image that means the LCD controller board (TCON) is probably good.

The problem is probably one of three causes;
1) Inverter board is bad
2) CCFT (cold cathode fluorescent light) are bad.
3) Power to the inverter board is bad. You can also check the connectors.

Posted on Mar 30, 2009

  • 10 Answers

SOURCE: LCD TV SCREEN PROBLEM RED HORIZONTAL LINES OF DOTS ALL OVER SCREEN PLEASE HELP

This should be repairable. It may be the LVDS Cable or the Main board problem. The only other problem is the T-Con Board.

Posted on May 23, 2009

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Hello Gregor_69

Lets see if we can get you sorted out. Please follow my steps and you will be back up and running in no time.

with you samsung remote make sure you press the TV button so that we are on a TV channel and not one of the other inputs.
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I hope that this has helped you out. If so then please leave a thumbs up

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Please rate this solution.
Lone99star

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Picture gone from TV Model LE46M51B


I suspect that your backlight has gone out. If you shine a light on the screen can you see remnants of the picture that should be displaying? If so, it's definitely the backlight, and most likely the power inverter for the backlight. You can probably find a replacement inverter, but you may need a repair manual to install it. I'd recommend checking the warranty status first and sending it in for repair if you can.

Feb 17, 2008 | Televison & Video

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