Hi, I've got a samsung smart TV. Was working fine since I bought it new in 2017. Just recently started having a problem with the screen. The top portion is fine but everything else is shaky. I didn't do anything to the TV before it started having problems but I know samsung just released new firmware for my TV, firmware version 1262. I'm including a picture to help show my problem. I'm wondering if the new firmware is causing this issue. Any help would be awesome, I've never ran across where half the screen still displays, but its shaky and distorted.

SOURCE: Sony TV - Loss of half the picture

sarge, it sounds like the vertical output IC went bad on you. If it was a bad connection or a bad capacitor, your picture would have been a straght line across the screen. They call the output section of the IC a push-pull type of amp, so the top half of the sweep IC went out. If you have had some soldering experience, and or experience with solid state repair, locating the bad IC and replacing it is no big deal. If you havent, stay safe and call in a pro to assist you in this repair, as there is alot of high voltage inside this puppy that is still present even if the set is unplugged. It should not cost an arm or a leg to repair this set. An honest repair on a set like this if you take it in should not exced 125 to 150 bucks. Good Luck PS Please dont forget to rate this thread.

SOURCE: half screen activated only

When only a half screen is produced, it is usually a upper or lower buffer board, if the top half is blank then it is the upper buffer, and of course if it's the bottom half then it's the bottom buffer board

SOURCE: Picture full of lines and flicker

Zdenko did an excellent job. Voltage regulators and the capacitors on the main boards and in the power supplies are always suspect. Some times you can narrow down the culprit buy purchasing a can of freeze spray. Let the TV warm up and try freezing suspect components to see if this causes a reaction. Thermal problems can often be found in this way.
Of course, if you're not able or willing to replace components on the circuit boards, you can always replace the main board or power supply board after determining which is causing the problem. These parts should be available at your local Viewsonic service provider at a reasonable price.

SOURCE: Firmware update caused static on the display

See previous comment

SOURCE: LG Screen M227WDP shows only white screen with a version number

Well as you have only had it a few months, SEND IT BACK ( LG does not mean Lifes Good, in the trade we say LG=Lotta Garbage) There have been quite a few chip failures in this model, It should be recalled. Do a warranty call and get it replaced.

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