Question about Sony BRAVIA KDL-V40XBR1 40 in. LCD HDTV
We recently bought a floor model of a flat screen lcd high def. television. there is a certain spot on the screen where there seems to be a "dirty" area...this is not noticable all the time, but more pronounced on lighter screens and flesh tones. We contacted Sony and the tech said to wipe of screen with a damp wet cloth. this didn't help. To me the screen doesn't appear to be smudged when the tv is off...but my husband says he can still see smudging. someone says if the l.c.d. screen is damaged this will cause the dark lines and smudges we see on the screen. if the screen is damaged does this void the waranty and if so, how costly is this problem to reapir? How CAN you clean an LCD screen? Thanks
SOURCE: smudge looking marks onscreen
If you suddenly noticed it, this is most likely caused by a large piece of dust on the lens. It is hard to clean, you would need to take the whole TV apart in order to get to the lens (mounted on the optical block).
It could also be caused by a failure of the optical block, which had inherent issues. There is a pending class action law suit against Sony for problems with optical block that include smudges, hazes, and tints that appear after a certain number of hours.
Other causes could be a dirty portion of the mirror or a smudge on the inside part of the screen but these are rare because dust and contaminants do not usually accumulate on these parts of the TV.
Posted on Oct 06, 2009
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