KDL-40XBR4 picture shadowing - AVS Forum
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post #1 of 4 Old 05-23-2011, 07:21 PM - Thread Starter
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Hello

My tv is experiencing some picture issues lately and I was hoping somebody could give me some ideas on what may be wrong with it.


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post #2 of 4 Old 05-24-2011, 06:34 AM
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Most likely a bad panel. That's about the only thing I've seen wrong with these sets.
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post #3 of 4 Old 05-24-2011, 08:16 AM - Thread Starter
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is it worth fixing or should I trash it?
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post #4 of 4 Old 06-06-2011, 01:30 PM
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You might look into the XBR4 owner's thread. I have a kdl-52XBR4 and have the same problems. I believe that it comes down to two possible problems - the UB1 (T-Con board) or the FB1 board. I have already replaced my UB1 board and it did not correct the problem. I am going to replace the FB1 board when it arrives. One of the threads that I read said to try zooming the picture while you are having the problem. If the ghosting remains during zoom, it is probably the FB1 board. If you ask Sony or a Sony technician, they will tell you that the boards are part of the panel and can't be replaced separately. That is not true (at least with the 52XBR4). The boards are not expensive and replacing the UB1 was not as hard as I thought. I wrote a tutorial for it on my blog. The URL is http://www.gotosnapshot.com/myblog/s...b1-replacement.
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