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I have a Samsung LE40F71B LCD tv about 18 months old. It has started showing red pixels around the edges of blacks, e.g. around a lapel on a black coat or on black hair, etc. Sometimes the sound crackles too, then is ok. The screen may flash very briefly at that point, then is ok again.

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  • Anonymous Aug 15, 2008

    We've got exactly the same problem with our Samsung, purchased in November 2006. Spoke to Samsung about it, they don't want to know as its out of warranty, even though they had to replace the main board shortly after we got it. They suggested someone to fix it, but they want £120+VAT to even come and look at the thing!

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6 Suggested Answers

SOURCE: Samsung LCD HDTV - Color Problems

voltage adjustment for y-sus board or power supply

Posted on Mar 17, 2008

  • 1 Answer

SOURCE: Black/Green Distortion - Picture Quality - Wharfedale

This is no solution but a point in a probable direction.

A tech guy told me ALL the LCDs they have seen in their repair shop have "swollen" capacitors, this is due to voltage instability. Lowering the internal voltage regulator and replacing the swollen capacitors (which eliminate noise) apparently restores the LCD to new working quality. Without actually "seeing" my problem the tech said that should repair it. I have not tried this yet but eventually will begin that way.

Posted on Jun 08, 2008

  • 1 Answer

SOURCE: Samsung hln4365w - no pic. or sound. it whistles a few times when powered on

We have the same DLP set and had the same problem. The Color Wheel, P/N BP96-00250A, a $200 part needs replacement to eliminate your problem.

Posted on Jun 08, 2008

SOURCE: Samsung LCD TV HCP4363WX/XAA Black screen no sound.

check out the link below ... sounds like a similar problem:
http://www.dslreports.com/forum/r20889230-Samsung-LCD-TV-No-Picture-but-has-Sound

Posted on Sep 06, 2008

  • 1 Answer

SOURCE: SAMSUNG PS42D4S PLASMA TV HAS

I had the same problem here but I notice that one of the compoent on the power supply board is melted slightly. Suspect that it might be the cause. the compoent have a symbol of transformer and is grey in color...(look like a cap) ...compoent number is L48

Posted on Sep 14, 2008

  • 3 Answers

SOURCE: i have maxim lcd tv

HI TRY REPLACING C300 0N POWER SUPPLY BOARD

Posted on Mar 21, 2009

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