Question about Philips Magnavox 27MS343S 27" TV

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Projectal tv TV shutting itself off

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  • alber2 Jan 07, 2008

    one line appears in monitor



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TV's have a circuit that monitors the high voltage and shuts down the set if it senses something amiss.
On CRT types, figure on replacing the flyback transformer.

Posted on Jan 02, 2008


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Hisense tv troubleshooting

Check the tv menu settings...go to where you set the date and time etc... usually in the general section..
Look for timer or timers...turn off sleep timer, turn off power on timer and turn off power off timer...cheers

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When I was watching TV today my Sony Bravia KDL-40V4100 just swutched off by itself. After 15 minutes or so it came back on by itself, I shut it off soon after. Later on today after watching TV for 15...

When tv it shutting itself off by it own does the tv power LED light indication flashes?Tv turn on now,the tv power light indication,just flashes?Yes,than ur tv power supply board is the causes and the problems.That the board,where the power a/c cord plug into it.Tries websites like, to buy a whole refurbish power supply board for the replacement.

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The TV started turning itself off occasionally a

Most likley what it could be is an interferance in the TV. Modern TV's have a feature that will shut itself off when it is not receving a picture. For instance, after so many minutes of "snow" it will shut off.sometimes this can make the TV think there is no signal at shut itself off.Anyway, I suspect its an interferance issue. Perhaps moving the TV further from the source of the interferance might help.

Sep 17, 2009 | Televison & Video

1 Answer

Tv shuts itself down

This is due to bad caps read here what a cap is see you tv is getting hot as normal but the caps cannot stand it any more thus shutting the tv down. The bad caps would be more or less in the power supply unit of this TV. So you can buy a new psu or get it repaired by a expert.

May 25, 2009 | Mitsubishi VS-6055 60" Rear Projection...

2 Answers

Tv shuts itself off

The power supply may be going on to protection mode. This is usualy because one of the scan amplifiers may have failed, or something is taking too much current and forcing the power supply to shut down.

Jerry G.

May 12, 2008 | LG RU-52SZ51D 52" Rear Projection...

1 Answer


is this electricity pocket plugged up to a timer ? or take the tv back to the shop... lost the receit just look for the same tv on computer

Feb 20, 2008 | Toshiba 28N33 28" TV

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check your sleep timer settings thats the most comman prob

Dec 18, 2007 | Philips 27PT81S 27" TV

1 Answer

TV LED Flashes then TV shuts itself off

capacitor problems in power supply or a regulater isolate the power suppley by disconecting the line output stage/unplug scan coils for example and run a 60w bulb as a dummy load one wire to earth and the other to rail voltage colecter of line output transister if the bulb glows steady the power supplys fine

Jun 25, 2007 | Philips 27PT81S 27" TV

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