What's wrong with my TV?

[Videogamer555]

My Sony Bravia LCD TV (model: KDL-46VL160) has been like this for a while now. I bought a new one, but would like to be able to repair the old one. The right half of the screen is dark (not black, but all the colors are very dark, and the ones that do show are usually very saturated), and there is a transition region where it "gradients" from the normal half into the darker half. In the rightmost portion of this dark half, there are several columns of pixels that look a bit brighter, and which of these columns are brighter than others tends to be affected by the image content in that part of the screen at any given moment. There are also 3 "triangles of light" as I call them. These are triangular regions in the the image tends to be brighter. They appear in the area of the image that has the columns of pixels of changing brightness. If there is a change of scene, which causes the image's brightness to suddenly change, the left half (good half of the screen) changes instantly, while the right half (bad half of the screen) has the brightness change go shooting across it from left to right, in about a quarter of a second (a change that should appear visually instantaneous, but is not instantaneous on the right half of the screen). Attached to this message is an annotated photo I took of my TV screen malfunctioning.

I hope someone here is familiar do-it-yourself repairs with this model of TV, or at least the series of TVs of which this model is a member. Again, the company is Sony, and the model number is KDL-46VL160. I don't want to have to take it to an official Sony repair place, as my warranty is out, and they'd probably charge lots of $$$ for repairing it. So I'm looking for a DIY solution, if the parts to make the repair are commercially available like stuff I could get at Radio Shack, or any of various online electronics suppliers.

[bendixG15]

Have you checked out the Sony site for your TV ????
http://esupport.sony.com/US/p/model-home.pl?mdl=KDL46VL160&LOC=3&session_id=59c68c1588...906b#/howtoTab

[Videogamer555]

I checked it out. My TV's exact problem is not even described in there, not even close. I hope someone on this site has some knowledge about the actual circuits in that TV, as well as knowledge of what defects are caused by the failures of particular circuits or components, because my hunch is that I'm going to need to be replacing some electronic components here.

[Hoser Rob]

... I hope someone on this site has some knowledge about the actual circuits in that TV, as well as knowledge of what defects are caused by the failures of particular circuits or components ....

People who know that kind of stuff ... and you won't find them on these sort of forums ... are techs who do it for a living. And when you do something for a living you sort of expect to get paid for it.

Those kind of circuits have a lot of chips that are surface mounted. You can't just replace them with a soldering iron. If a part is faulty a repair shop will usually just replace the board.

There are a lot of things on the web telling you it's always capacitors. They don't know what the frak they're talking about. Even if there are a bunch of bulging or leaking caps in there, all the caps aren't going to fail in that short period of time unless there's something else downstream that's stressing them and causing them to fail.

Take it to a proper repair shop or toss it.

[Videogamer555]

There are also hobbyist repair people who learn electronics for the fun of it, can repair or even modify lots of consumer electronics, and are willing to help fix a problem by typing the answer to your problem on a free online forum, rather than depriving you of an answer and demanding you send it to them to fix it for a price (where they use their own proprietary, not publicly released technique, to fix the problem, which is what a professional repair technician would do). People who are willing to give you an answer have usually acquired knowledge of the exact working of the equipment through reverse engineering it, or being lucky enough to talk an actual repair person into leaking the info to them. I'm hoping one of these hobbyist DIY equipment modders/repairers happens to be in these forums here, and is willing to take the time to type out an answer that will tell me how to make the repair. I hope that the image I attached in my first post depicts what is a common problem, that any DIY repair guy would know the answer of how to fix it.

[davexnet]

Try this Sony forum, they have a troubleshooting section:
http://www.agoraquest.com/forum.php

[olyteddy]

You can possibly find an answer over at AVSforum.

[johns0]

http://www.justanswer.com/tv-repair/6uya2-sony-bravia-kdl-46vl160-gone-half-dark.html