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My 46"Bravia tv is only 2 years old and when turn on there are lines going across screen,also looks fuzzy. At first only did a few minutes and would clear up but now lasts 30 min. or more and comes and goes.
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top half missing is in vertical circuit of set---if it is a 27 inch and this old consider retiring it and replacing----other option is consider having a shop repair it--a rough guess would be as high as 150 dollars parts and labor is possible for your problems.
Possible fault in the convergence circuit, failure of the IC. I advice that you must not tamper on the TV but ask for the warranty replacement without even opening the set. You are entitled to this service and must not throw it off. So call up the dealership and register your complaint .
Option 1: replacing the main board will run you a few hundred bucks for the Board and $300 in labor (or so) to get it installed.
Option 2: replacing the TCON means you might have to replace the whole screen (some TCONs are not available separately). A quick phone call or visit to Sony's part website will be able to determine which you need.
If you need to replace the screen, buy a new tv. The panels are amazingly, painfully expensive.
Now, there's a way to test which one is causing it, but you'll need to be quick.
For this experiment you will need: a screwdriver, a hair dryer, and some guts.
Take the back off the set, fire up your hair dryer and fire away at the TCON board (located at the top; it's a small board under a metal shield--you can't miss it).
Really warm up the metal shield and circuit board.
Now, plug in your tv and turn it on. If you don't see blurry colors and everything looks normal, you know it is the TCON board.
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