Question about LG 42PC1DA 42 in. Plasma HDTV

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Television keeps turning itself on and off. at first it was just during commercials and now it does it continually

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This sounds like either the power supply is going or the lamp is over heating and shutting itself down. if the TV goes completely out with no sound, most likely a power supply. if there is still should, then it might just be a lamp

Posted on May 04, 2010


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I have a Sharp LCD that keeps changing inputs and will randomly turn itself on.

Sounds like you have another infared source that the LCD is seeing. Put opaque tape over the infared receiver and see if the issue continues. Look for another IR device in the area.

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Water pouring out of the drain line

turn off the power and see if it continues. if so you may have a stuck water supply valve. if it happens during operation it could be a stuck check valve.

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TV randomly turns itself off and then comes right back on. Unfortunately it never does this during a commercial. Generally happens during a punchline or critical plot twist. WHY would it do this??

Tv power supply board is developing a problems.That the board where the power a/c cord plug into it.That why tv is have voltages glitches intermittently power shutdown unknown times.Tries websites like, to buy a refurbish power supply board for the replacement.

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Sound during commercials only ?

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Sound on my rca tv

I wonder if your problem with loud volume occurs primarily on commercial breaks, when you turn down
the sound and then, since the sound, for the program itself, is so low in volume, you have to turn it way
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If this is the case, and there are no other problems with the set, this may not be the set's problem, but the
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that while you are in the kitchen, during commercials, the sound of the commercial can still be heard.

Apr 18, 2009 | RCA Televison & Video

1 Answer

Our TV shuts off by itself usually during commercials. We have to unplug it, plug it back in and turn it on manually ~ till next commercial. Seems to happen more on the cable channels ~ the main networks...


Since commercials are louder volume-wise (especially with cable more than satellite), my first guess would be that you have a faulty part around the audio amplifier of the TV, and it loads the power supply or creates a high/low that tells the TV micro to turn off. Knowing what brand the TV is helps, but in any case, it probably needs to be referred to a TV repair shop for tracking the part(s) down.

I hope this helps you...

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1 Answer

Volume suddenly turned down during commercial

shut off the all BBE and surround and the AL sound page 27 of the manual.

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