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Tv shuts off and on by itself - RCA Alert Guard 20" Flat Screen 20F670T Monitor

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Check first its external electrical cord or power outlet for loose or broken connection. if its ok then leave some comments.

Posted on Apr 11, 2009

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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 Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Dec 12, 2010 | Sony BRAVIA KDL-40V2500 40 in. LCD HDTV

1 Answer

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 www.badcaps.net 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...

1 Answer

TV shuts itself off after a couple minutes of being on.


One must be very careful of the quality of the replacement lamp. Many of the cheap 'deals' on the web for replacement lamps are substandard. I always recommend that replacement bulbs be the original manufacturers bulb.

Apr 30, 2009 | Mitsubishi WD-73827 73" HDTV DLP TV

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

Assistant


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

1 Answer

Assistant


check your sleep timer settings thats the most comman prob

Dec 18, 2007 | Philips 27PT81S 27" TV

1 Answer

TV shuts itself off after a few minutes. Will also shut itself off if the DVD open/close button is pushed. Not sure if a DVD is in the machine or not. Any ideas??


I know that shortly after I purchased this tv mine also shut itself off occasionally. The owners manual says that if it is on dvd mode and it's paused or on an inactive menu or something for 15 minutes or so that it would shut itself off. If a dvd is stuck inside it may be causing this? I have no idea about the open/close malfunction.

Sep 29, 2007 | Symphonic SC519DD 19 in. TV/DVD Combo

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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