Question about Sony KDF-E50A10 50 in. LCD HDTV

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Screen suddenly only shows vertical colored lines.

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This is a problem with your LCD chips you need to replace the optical block to fix this problem and the vertical lines will get worst if you don't replace this part

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Posted on Oct 04, 2010

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If you are comfortable working inside the set and can solder, try resoldering both the vertical IC and the input jack connections. The vertical IC will be a small flat IC attached to a heatsink with about 9-11 pins. It will be marked LA7837 or something similar.

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1 Answer

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Most likely a bad Vertical IC or bad connections on the vertical IC. don't continue trying it on. If you have a bad connection it could do more damage. You also could damage the CRT ( picture tube ). If you remove the cover and look at the bottom side of the PC bord with a good magnifiing glass you may see what looks like rings around the leads comming from the Vertical IC. The Vertical IC is mounted on a heat sink usually towards the front of the set looking from back. If you do see the rings around the leads try reheating with a solder iron. If this dosen't fix you most likely need a new IC.

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