One side of the screen has picture and sound, the other side has snow. We are blocked from access, TV, Aux etc.
Go into picture set up and turn off double screen
Ways to fix
There are many ways to attempt a fix of a dead pixel. Most manufacturers expect problems in the assembly process, and their warranty policies cover screen repair or replacement. Contact your TV's manufacturer's customer service department and explain the situation and ask if they offer a solution of some kind.
If you want to try to repair the problem yourself, there are lots of things you can try. The safest is likely running a special DVD that is programmed to exercise pixels, which may revive your pixels. Beware, though, some of these methods may cause damage to the pixels around the one you're trying to fix, which may void your warranty. No matter how carefully you use these methods, there is always a risk you will cause more damage to your TV.
Use software/web app
If your TV is a smart TV or connected to a computer, you can use one of the many websites available that help fixes dead pixels. There are several web-based programs that will display solid colors, allowing you to find dead pixels more easily. Some of these include Dead Pixels Test, CheckPixels.com, Dead-pixel check, or LCD DeadPixel Test.
There are also software utilities that help to revive or unstick pixels. UDPixel is one example - it isolates the affected pixel and forces the pixels around it to cycle through different colors at a rapid pace. This type of fix can take a few minutes up to a few hours, though.
Websites such as JScreenFix will turn your display on and off repeatedly at a pace of about 60 times per second. After some time, the pixels may respond and unstick or revive.
Factory reset
Resetting your TV to factory default settings can also solve the problem. The process for this will vary from TV to TV, depending on the manufacturer and model. You will need to dig out your owner's manual to find out how to rest your TV, or you can search online for instructions. If you're unable to find instructions, either way, contact your TV manufacturer's customer support for help.
Warranty
If your TV is still under either manufacturer warranty or extended warranty service, it might be better to have that warranty call. It might be tedious with submitting all the proof of purchases or receipts, but still, if that gets those dead pixels out of your screen permanently, why not?
In the case where your TV was out of warranty and you can't fix it yourself, a local repairing shop might be an option. Beware though, that someplace might charge higher to repair/replace the screen than the actual cost of the TV itself.
Screen Replacements
If none of these techniques help, and if you don't want to go through the hassle of trying to getting replacement parts from your TV's manufacturer, there are some manual repair methods you can try.
Applying Pressure
Pressure might help recover your pixel if there are issues with the connections in the pixel. Find a ballpoint pen or dull pointed pencil and a dry terrycloth washcloth. Turn off your television, fold over the washcloth, and place the washcloth over the affected pixel. Gently apply light pressure to the area with the pen or pencil.
You can also try rubbing the pixel. To do this, you gently rub your fingertip over the pixel until it resets. Remember to keep your touch gentle and light, though, to avoid breaking more pixels.
Tapping the pixel might help, too. For this method, turn your TV on and turn it to a solid color display in order to easily find the affected pixel more easily. Once you've located it, tap at it gently with a ballpoint pen or other dull, small object.
Screen message might work as well. Similar to the rubbing method mentioned above, you turn off your TV after identifying the location of the dead pixel. Get a slightly damp cloth and use one finger to apply pressure to the area with the cloth. While maintaining pressure, turn your TV back on. Remove pressure from the screen. This should have eliminated the dead pixel.
Another method combines techniques from screen massage and pressure methods. Mark the dead pixel using a grease pencil, then place a dampened cloth on the area after turning off your TV. Place the capped end of a pen against the cloth and apply mild pressure. Hold for 15-20 seconds, then remove the pen and cloth. Wipe the grease pencil off your screen and turn on your TV.
Regards,
Rachel Gomez
Main board fault. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".
http://electronicshelponline.blogspot.com/
SOURCE: VIZIO P42 plasma, half screen ok, other half showing blank
First you have to check if voltage and data are ok at the Y sustain board and the Y driver boards are not running hot. Even if you know how to replace these panels you must have a scope to adjust the v-set up and v- down. Not just a simple PNP. Trouble shooting a plasma is not a short time process to do it correctly. Please let a service center look at it for you.
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