Question about Samsung LN40A330J LCD TV
TV LCD Samsung model LN40A330J. The TV screen blinks (goes black), but the sound continues. The problem is that when this occurs, the picture settings keep coming back to dynamic mode, with very sharp clarity.
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Posted on Jan 02, 2017
The TV is probably in Shop mode, when your TV is initially turned on you can choose between Shop mode or Home Mode.
In Shop mode the TV automaticly returns to the standard setting after a while, they do this so customers can "play" with it.
Press down de Volume button and then hold down the Menu button for five seconds on the side panel of the tv.
Posted on Jun 12, 2008
SOURCE: samsung tv turning off by itself
I have the same problem of the set turning off and on by itself. There is a circuit in Samsung TVs that would shut it down if a very loud noise occurs in the program being watched, but I have not noticed that correlation. My problem is solved by vacuuming the back panels of the set. They do not seem to have any significant dust on them, but I think the vacuum sucks somewhat inside of the TV and does some good with the fan that is supposed to be cooling the bulb and the mirror. It seems to work for months on end and when the problem recurrs, I vacuum again.
Posted on Oct 28, 2008
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
You need to check the back light is still on when the screen is blank (check through the back).
If the back light is on, need to change the Powwer Board.
no back light, need to change the inverter.
Posted on Feb 06, 2009
Sounds like your power board is failing. contact samsung tech support and describe your problem. some parts on samsung have lifetime warranties and the service call is free.
Posted on Apr 09, 2009
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