The television plays normally, but suddenly the screen goes black. Other times, the screen turns to hundreds of vertical stripes of all colors. When it goes black or striped, the remote works but it has a 5-second or longer delay. The problem is temporarily fixed by turning off the power and restarting, but the problem persists. I notice no patterns with the problem. It seems quite random.
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Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.
SOURCE: shuts down after power up
I rebuild these power supplies flat $99 plus shipping & handling. www.Irionstvshop.com ,Wayne
SOURCE: black screen
I fixed it! It's the power supply board.
The Westinghouse LCM 22w2 has bad capacitors on the yellow power supply
board. This is a common problem plaguing motherboards and LCD
flatpanels that use capacitors from Taiwan. If you know how to solder,
or know somebody that can, it's actually a pretty easy fix. Take out
the yellow circuit board on the inside, write down the specifications
for each of the capacitors (the cylindrical things) go to the
electronics supply store and get the replacement capacitors. You can go
over the voltage specification (not under), but keep the capacitance
value matching. Replace one at a time. Go to www.badcaps.net for
advice, tutorials and training on doing this. *You really should
replace all the capacitors*, but the very large one next to the power
plug I did leave on the board because I couldn't find a match. To my
delight, the problem went away and it was working as new!
I saved a ton of money fixing this, it's definitely worth learning how to solder to do this.
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SOURCE: screen looks like color bar code
the answer will deprnd on how the fault occured
the tv may have had a knock (kids in house!!) in which case it could the the lcd panel gone
if a normal fault the more than likely the ldvs cable or dry joints either way not a job for the untrained
i have found the lamp will cause sound no picture but if the picture freezes could be dmd bd or digital bd going bad
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