Question about Samsung LA40A450 40 in. LCD TV

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Hello, My LCD SAmsung 40" Is acting wierd. Sometimes doesn't want to switch on, sometimes just turns off, sometimes turns on but with no sound!! What may be causing this?

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  • Samsung Master
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Probably the power supply board is failing and needs to be replaced. VERY common problem.

Posted on Nov 12, 2009

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Every time i use another electrical item near my tv the picture goes all wobbly and distorted.


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I hope I helped you! All the best! Don't forget to rate! :)
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My tv keeps clicking on and off at startup. Sometimes taking 3-4 attempts to turn the screen on. Also, it will start without picture only sound


Your #1 suspect: LCD inverter, which supplies white light to the screen.

Your #2 suspect: the switched power supply, specifically 24VDC lead that supplies power
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Either way, enjoy your 40-in set while it lasts, since its soon to be heading for a TV repair service.

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