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Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD screen are similar, irrespective of its brand and screen size.
Search the site by type in the "Brand Name" (Exclude the model number) to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.
The best and the only solution to fix this problem is to call a tech and get it serviced or if it is still under warranty just get it replaced.
Few troubleshooting steps you can try:
1)Do a hard reset by unpluging all the cords for 4hrs and then plug it back. 2)The
whacking test is to just bang or smack the set with your hand on the
back, side, top, etc., to see if there are loose connections or cold
solder joints inside that are acting up. If so, the banging should
knock them back to normal and the set should restore. You might have to
use some creative banging and some have had to put a book or magazine
under one corner to torque the chassis enough to get it to work
Goodluck, Please don't forget to rate the solution
CHANGING THE SCREEN ASPECT RATIO: ( From Manual )
The TV can display images in four different modes: Wide, Zoom, Panoramic, and Normal. Each mode displays the picture differently. To change the screen aspect ratio:
1. Press the MENU button on the remote.
2. Use the Arrow buttons to highlight the Wide icon. Press OK.
3. Use the Arrow buttons to highlight your desired screen mode and press OK:
• Normal preserves the content's original aspect ratio. Since the 4:3 aspect ratio is not large enough to fill the TV's screen, black bars are added to the left and right of the display image.
• Wide stretches a 4:3 aspect ratio picture to the edges of the screen. Since the picture is being stretched, the display image may appear distorted. If the program is already formatted for widescreen viewing (1.85:1 or 2.35:1), then black bars will appear on the top and bottom of the display image.
• Zoom expands images with black bars to fit the screen.
• Panoramic expands the display image to fill the screen.
images may appear wider than intended.
If you are watching widescreen (1.85:1 or 2.35:1) content, black bars will still appear on the top and bottom of the display image. This option is only available when the TV is displaying a 480i/480p source.
According to Sharp it is a software problem. Engineer came, installed software update ,10 minute job.....TV worked fine for 1/2 day unfortunately: Then images turned black and white in all channels TV turned itself off, and stanby and OPC buttons started flashing. When TV came back on its own 10 mins later , screen had 2 large square staines superimposed in image (as if it was a burnt screen)...Engineer will be back next week...all quite sad really for a new TV.....will keep u posted
Sounds like a hardware problem. And since your computer is failing like that, my guess is it is the hard drive making that noise. You need to isolate the location of that noise. If it is coming from the hard drive I suggest you back up your data *immediately* using some kind of CDROM based disk imaging software where you can boot to the cd (so you use the hard drive as little as possible). One such program is Image For Linux (http://www.terabyteunlimited.com/image-for-linux.htm)