Sony bravia kdl 46s4100 horizontal banding problem. 1,2,3 or 4 1/4 screen horizontal bands,that are darker and have image distortion

Used to go away after turning on the unit for a few minutes but is getting progressively worse

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City View TV & Computer, Inc.

Sony Master 453 Answers
Posted on Oct 30, 2017

City View TV & Computer, Inc.

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A defective display panel.

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Anonymous

1 Answer
Posted on Jun 28, 2009

SOURCE: Sony kdl-46xbr4 Black Horizontal Bands When I First Turn on TV

I had the exact same problem with the Sony KDL46XBR4. The problem started 11 months after I purchased the TV (Dec 2007). Luckily I placed the call to Sony just before the 1 year warranty expired and they replaced the entire front panel which is basically the whole TV except for the stand and the plastic frame. Last month the same issue started happening again (5 months since the repair). I called Sony and they say they have a 90 day warranty on the replacement part so I would need to pay out of my own pocket to first have the problem diagnosed (it's the EXACT same problem!) and then pay to have the repair done since the warranty has expired. I asked how much the front panel costs and it's $1,400! I paid $2,100 for the TV when I purchased it. Interestingly, at the time that part was back-ordered.....hmmmm, I wonder why??? Perhaps a recall is warranted here (no pun intended). Needless to say, I have sworn off Sony products due to their lack of support for this issue.

Anonymous

10594 Answers
Posted on Aug 30, 2009

SOURCE: KDL-40S2000 horizontal black lines

Seems T-Con board mounted at top center at rear of LCD Panel is bad.
Local TV tech will fix TV by replacing T-Con board.
Thanks.

Anonymous

1 Answer
Posted on Feb 17, 2010

SOURCE: Sony 52 inch XBR with bands of ghosted images

Its a TAB bond Problem with the LCD. You can take apart the TV and install a rubber Bumper to put pressure on the TAB. TAB bonds always get worse... I dont know how long it will solve the issue... but u can get a little more life out of it.
Rember when working with the TV the voltages can kill!!
Heres a link to see someone fixing.
I have the same TV...same problem...common problem...unless u ask Sony.

Anonymous

1 Answer
Posted on Aug 05, 2010

SOURCE: sony bravia kdl 46s4100 no picture

it sounds like your back light might be going out. You might be able to fix this by installing a new backlight inverter board.

Anonymous

21 Answers
Posted on Oct 18, 2010

SOURCE: kdl-46v4100 On my Sony Bravia

have you tried pressing the display button on your sony tv remote? is it happening on all inputs and/or channels?

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