Question about Sony KDL40EX400 40 in. HD-Ready TV

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Dark band across top of screen

I have the Sony Bravia 40" KD model LCD TV. It is almost 5yrs old and has about 14,000hrs of use. It has recently developed a band across the top where the picture is slightly darker than the rest of the screen. Can this be fixed?

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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HDTV GURU
  • 261 Answers

SOURCE: sony bravia

It sounds like the backlight is going bad or possibly the panel. Let me see a picture of it. Talk to you later. Jay

Posted on Feb 01, 2008

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SOURCE: Sony Bravia 40" LCD TV generating heat.

First, you will have to define what you mean by "hot to touch" ie.:
can you or can you not hold your hand on it for a few moments.

Posted on Apr 27, 2008

mistersony
  • 320 Answers

SOURCE: Sony Bravia KDL-40V2500 40" lcd hdtv

I risk getting a bad rating from you, but it sounds as though you have a bad LCD panel. I have seen sections of the panels fair, usually caused by a separation of the ribbons connecting to the panel itself or a bad TCON board (the board that addresses the pixels. It is part of the panel on Sony TV's). Your best bet is to contact Sony customer service at 800-222-SONY to see if they will work out some kind of accommodation on the repair, like possibly covering the parts or splitting the repair costs with you. I hope I have provided you with good information and you do not rate me poorly for your bad news.

Posted on Nov 10, 2008

  • 1779 Answers

SOURCE: My 50" Plasma has developed a band across the middle of the TV

I would have it looked at before saying it is burn in, a BLACK horizontal line across the set is loss of data to the display from the Y-drive panel. This is something the customer should not attempt anyway, however, if it is either the upper or lower drive board they are not that expensive. Let me know the outcome.

Posted on Feb 04, 2009

xCAUSALITYx
  • 210 Answers

SOURCE: My SOny Bravia 40 inch LCD TV has a vertical line

Hi,

It could be 1 of 4 things:
1. One of the ribbon cables has worked itself loose (Simple Fix)
2. One of the assembly boards maybe faulty
3. The driver board which feeds the panel maybe faulty
4. The panel is faulty

The driver board in the UK costs approx £70 and approx £35-70 to fit it if this is the fault.

All other parts are between £80-160 and approx £35-70 to fit it if this is the fault.

The panel will cost approx 50-75% of what the TV was worth when you bought it - "Repair versus Replacement"

Thanks

Posted on Oct 01, 2009

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1 Answer

Sony 40 inch Bravia screen has sound, but picture have weird lines that go across screen


It could be caused by a bad T-Con board or defective LCD panel. The panel is more expensive than the TV, so hope that it is the T-Con board. Below is a parts list for your TV model.

http://www.tristatemodule.com/t-Search.aspx?q=KDL-40S2010

Nov 03, 2013 | Sony BRAVIA KDL-40S2010 40 in. LCD...

1 Answer

Screen blinked and then there was a dark band across the top of the screen


This sounds like one of the back lights have failed. This could be its power supply, and or the lamp itself.

Not all the screens can be service for back light failure. This is design dependent. Also, if you are going to change a back light and you can, it is best to replace all of them at the same time. If not the coloration of the screen will be different from one part to the other. With age the color of these lamps changes a little.

I would suggest with such an old set, I would get one of the newer LED/LCD sets. They are very far improved over the one that you have. Your set will be expensive to service, if it can be serviced.

Jerry G.

Jul 27, 2012 | Sony BRAVIA KDL-40S2000 40 in. LCD HDTV

1 Answer

My sony bravia 32" is


hi ;
there's a problem in screen driver of your LCD, if you lost your receipt,that's bad luck.
if you know how to disassemble the back case of the TV , you can try some RESETTING of connectors from LCD screen driver to display driver board
marmeto12_2.jpeg
its only 50% chance to remove the line.
thanks.....

Sep 11, 2011 | Sony BRAVIA KDL-40S2010 40 in. LCD...

1 Answer

I own a 5 year old 40" sony bravia lcd tv, When


This sounds like what I managed to do to my screen, even though I knew better. Is there any chance you layed the screen face down at some time?

Even though you can still watch it OK, you probably have hairline fractures in the screen face (NOT the screen itself- be thankful for that- the cracks are in the screen coating). LCD screens are a very thin glass laminate with a thin protective glass-like coating. When they are laid flat (like I did to connect cables) if the screen bears any weight, microcracks develop on the front of the screen.

I am sorry to say that the effect is permanent.

Feb 24, 2011 | Sony BRAVIA KDL-V40XBR1 40 in. LCD HDTV

1 Answer

The top half of my Sony Bravia 32" screen plays as


Hi,
I'm sorry, it sounds problem with lcd panel (screen) that is defective and causing lower half distorted image. If tv is under warranty then call number written on warranty documents for warranty cover or lcd panel (screen) replacement would cost you approx 80% of new tv price.
Hope these info will help you.
Thanks.

Nov 09, 2010 | Sony BRAVIA KDL-40S2010 40 in. LCD...

1 Answer

KDL 40V2500 two Dark horizontal bands on lower third of monitor


pixel thin are almost always the lcd panel. you could try opening the tv an reseating (un hook and rehook) the cables that go to the screen. there is a board at the top of the back of lcd panel that drives the video. it has connections in and out that i would reseat. if this doesn't resolve, that board could be bad but unlikely. most likely needs a new panel, sorry for the news. :(

Dec 08, 2008 | Sony BRAVIA KDL-40V2500 40 in. LCD HDTV

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