SOURCE: Right 2 inches on edge of screen are darker than the rest of the screen
I have a 20 month old Samsung HLR5668WX/XAA that except for the left vertical 20% of the screen, the rest became very dark. I can make out the images behind it, but just barely. For the next few days, I turned off/on the set after a few minutes every time it happened and the picture came back to normal. Then eventually the problem became permanent. Thinking it was the lamp, I replaced it, but the problem still exists. In addition, for a few months, the set has been making an intermittent grinding noise that goes away when I turn off/on the set as above. Its frequency seems to be increasing. Does it sound like the color wheel is bad? The fan perhaps? Something much worse (crossing my fingers)? Please let me know. Thanx in advance. Tom
SOURCE: images go suddenly darker
Turn off the the OPC feature in the Menu. If that doesnt help, what youre seeing is most likely the Advanced Dynamic Contrast going to work. In layman's terms, it automatically adjusts the contrast depending on the video signal it is receiving. If you want to disable this, change the AV settings to "User" (button underneath the bottom door on the sharp remote)
SOURCE: panasonic 37 inch lcd tv
Check its back light CCFL lam of that side, which look darker. Replace it.
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