Question about Philips 42PF9630A 42 in. Plasma Television

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Powers off by itself

TV powers off for no reason

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I think there could be a fault on the power supply board of the tv. If you can check this yourself if not find a competant technician. Hope this helps.

Posted on Oct 01, 2008

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Jvc TV has no power


(See the comment I added to the comment section regarding your 2 volt output)... Without using the remote, press the power button on the TV itself and HOLD IT DOWN until the TV powers on. If that works, it is a (going) bad power amp chip. The good news is that if it works, it will work that way for quite some time, just so long as you are consistent with holding down that power button _until_ the TV powers on. Every time it fails to power on (such as when using the remote and/or momentarily pressing the power button), the chip fails further. In other words, the more times it is allowed to NOT "power on" the closer you get to total failure. So, if holding the power button until "power-on" works, make sure nobody does it the "not-working" way anymore. (Hope that makes sense because it really will matter). The cost of repair is not worth it. If all the above does not apply, you can check for a blown fuse in the TV's power supply. However, I can assure you there will be a (not worth fixing) reason for a blown fuse in the first place. BTW, I had a two JVC TV's with the "power-on" problem as I described above. I threw them away 2 years later _still_ working the way I described to you.

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1 Answer

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1 Answer

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1 Answer

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1 Answer

My TV powers off by itself for no reason.


If you have read any of the previous post about this....sounds like a overheating issue. This happens quite often with overhead projectors also. Keep in mind that this is only guidance but it might be a good idea to open up the unit and get rid of dust. Dust becomes an insulator on all electronics (power supplies, electronics, lamps) or use some of the other quick fixes mentioned in the other post like add cooling externally. Hope this helps.

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1 Answer

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1 Answer

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TV powers on, then cuts off by itself.  I have no picture, and will not let me control the tv. with remote, or manual. 

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1 Answer

RCA 32" SDTV


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2 Answers

Tv unexpectedly powers off


Hi i has the same probleme..... My tv has 1 years and 6month... since two days.... the tv turn off itself...I have just take 15minute, unplug tv, and i have open in the right side the little panel...And i have clean inside!!! And i have do the same thing with the big panel in the back of the TV...After i have clean the fan...After this clean my tv is number one... and nothing turn off

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