My new Samsung UN65C8000 LED TV has an intermittent pattern of horizontal banding that is present probably 70% of the time and varies from narrow width banding to wider width at times. This is the second of these models I've had, the first just having been replaced by Samsung. I have a 42" Samsung 120Hz LED that has a flawless picture run over the the same AV system with the same inputs

What about it?!

Sounds like T'Con board fault. Check and replace it. 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/

tv model number is important for solution please writhe brand name and model number thanks for joining fixya!

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

Is this a Samsung TV? Can you post a picture of the distorted screen?

First of all try, changing the input device to some other and see whether you see the same problem. Then connect your present input to a different TV and see. If you feel the input is ok, and it is a problem in the display, this is a case to be handled by a qualified service technician.

1) you have problem with the Raster
2) the main causes are a) raster b) picture c) sound d) synch
3) since this are not video, the problem is raster. your must
test the voltage from section horizontal out +125vdc+vertical output +80v+all other circuit +12vdc
4) test the power supply for defective. see the diagram attached

Hiii fairley,

You aren't specsificly dercribe yor tv set.
For common TV horizontal problem ;i.e : White line accross the horizontal screen, horizontal band,etc..it's can solved by replacing the IC Vertical/Transistor, and olso to replace the cap nearest the IC.

For common TV Vertical Problem :i.e : White line at the center of the screen (top to bottom),Vertical band,etc...It's can cure by Replacing the Horizontal IC/Transistor,and offcurse the cap's.

Tha's what all I know....

Hope can help you to solved the problem.

Thank's

h3liax

The most common reason is a faulty lower buffer board. Also faults to Sustain boards and cables can cause the same problem on a plasma.

Hello, Hopefully We can help you determine if your lamp has failed. The Most obvious way to determine if you need a lamp is to do a Visual Check of your Lamp. Most of the time the Lamp will have blown and the filament burned. It will also usually be fogged up badly. Sometimes though the lamp will fail and look fine. Hence the blink code test. Todays Televisions Incorporate Blink Codes to be Used by both the Customers and Sevice Technicians. These Codes vary from Brand to Brand. We have compiled a list of these Blink codes in hopes that it will help you determine if Indeed you need a lamp. We say Blink Codes because when there is a failure within most televisions the Front LED Lights will Blink in some form of pattern. It maybe just your lamp light or it could be All of your lights. http://www.alltvlamps.com/samsungtest.htm