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Samsung la40D550 screen starts flashing after 45 minutes switching on the tv. The picture are little bit hazy and captions and figures are shown one under one like double image. what would the problem.

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Coldcut
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SOURCE: Image cut off of Samsung LCD TV picture

if you have a time warner remote press the # to zoom
cox has another button . don't know it. ask them.

Posted on Mar 08, 2008

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  • 1 Answer

SOURCE: Picture Flashing

I had this problem too, fortunately I have a sky engineer friend who told me it is a known compatibility issue, all you need to force the latest firmware upgrade down to your sky box and hey presto, it will fix it. It depends on the type of box you have as to how to force the firmware download, but just google it and you'll find the combination of keys to press that will put the sky box into receiving a new firmware upgrade from sky.

Hope it helps you, it did me cos it was driving me crazy

Posted on Jun 10, 2008

crlee3
  • 1 Answer

SOURCE: Closed Caption

Yeah, I'm now believing it's the tv. The captions on the other tv in the house work great. My samsung is only 2 yrs old. This model was 1080 i...Kinda of costly. Still no solution???? CR. LEE

Posted on Sep 08, 2008

  • 1 Answer

SOURCE: Problems with the picture mode on my samsung 46''

Your TV is in DEMO-STORE MODE.
Go to menu, find Plug & Play option, start it, and when asked, select Home Mode, than Enter and than just Exit.
:-)
Enjoy Your TV!

Posted on Jan 22, 2009

  • 304 Answers

SOURCE: Pink and green lines and double picture.

Replace the main bd. Have a trained Samsung tech troubleshoot to confirm.

Posted on Jul 17, 2009

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These are two variable resistors has some glue on it for protection, means NOT to adjust it as already adjusted in factory.

d620d4d.jpg

now regarding pulling two wires, one thick wire can be pulled ( not in all cases) as shown in below picture. Push it and rotate it. If this not works, don't pull it force ly. just go to other end of this wire and try this method.

ef6c9da.jpg

LOL, my drawing isn't good :P

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Your TV is in DEMO-STORE MODE.
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:-)
Enjoy Your TV!

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The text mode in the closed caption is turned on.Turn off the closed caption. I don't have the schematic in front of me, so, I will wing it. There may be a button on the remote that says CC, if so then use that button to turn it off, if not then go to the service menu and you may have to search a bit. Either way it's an easy fix and you can do it yourself. If you can't find it, then, reply and I will give better instructions when I get into my shop next week.

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check captions on your menu settings it has caption 1 and 2 if it is not set on caption it could be on text which cause the black box to come on the screen turn off every thing on the caption menu.if that does not work then take you set to a tech to have it reset then it could be your eprom or your video circuit.good luck.

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