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I have samsung lcd lnt4661 model. I had problem with my tv now. when i turn it on after 2 seconds the backlight will turn off which give no picture but there is sound.

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Hi,
There are two possibilities for back light off after 2 seconds.
One reason is back light inverter boards got defective for some reason (this tv has 2 back light inverter boards on either sides) and second possible cause is power supply is not giving out sufficient voltage supply to back light board.
Let me know your expertise level to provide you more technical info.
Thanks.

Posted on Aug 03, 2010

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Posted on Jan 02, 2017

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