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When I turn the power switch on the tv turns on and after 2 seconds it turns off then it turns back on then off again on its own. I have to unplug from power source to get it to stop.

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  • Sanyo Master
  • 12,061 Answers

This is a classic switchmode power supply, which is shutting down the set to avoid a fire, explosion, or both. This set has developed a problem, that is so severe that the set must be shut down, but when the set is shut down, the "Fault" disappears and the detection circuitry then tries to Restart the Power Supply, it comes on, only to again detect a Fault, and it shuts down, now if left, it would "Hic-Up" like this until destruction This set should now, be removed from the Power, and in my professional recommendation, you should get a "Quote" for repair, from, an, Approved Service Center, this point is very important for a good result, Always contact, their local, "Head Office" Sanyo, in your case. Now, when you get the information you want, from the "Quote" well, then you can decide as to repair of replacement. The reason we want an approved agent, is that way, all the engineers are trained on their own brand sets, they have seen almost all faults, and will get the job done quicker, and for less cost, and usually have original parts on hand, also sometimes, there has been a service bulletin in issued and the repair may be subsided or even free.

Posted on Oct 15, 2010

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Posted on Jan 02, 2017

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1 Answer

My tv won't switch on?


Sometimes this procedure will get an electronic device to turn back on. First check that your power cable is seated in the back - remove it and plug it back in if you can just to be sure. Then unplug the power cord from the wall. Press and hold the power button on the TV (don't use the remote) for 15 seconds. Plug it back in and try turning on the TV using the power button (not the remote).

If that doesn't work - try leaving the TV unplugged for an hour or so then plug it back in and try it again.

Good luck.

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Try this Make sure no game in ps3 turn ps3 off and by the switch at the back unplug it wait a couple of sec then plug it back in turn on buy the switch at the back then hold down power and eject hear a beep keep both preseec till 2nd beep let go should be able set it to ya tv

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Will not power up. Stays in standby mode.


these particular tvs are very sensitive to voltage changes spikes etc.first turn off main power switch wait at least 30 sec if standby come on wait another 30 then turn off main power again and unplug tv for 1 min then plug in turn on main switch wait 30 sec then turn on tv with remote resets system.then buy a ups and always wait at least 30 min after turning tv off to turn back on if not causes power failure and after each press of power button wait 30 seconds before trying again lmk good luck

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Hi. My sony KDF-E50A10 will turn on for about 30 seconds, then the picture and sound go off, the standby/power light flashes 49 times green and the set turns back on. After 30 seconds, the same thing...


tv works for about 2 minutes, then shuts itself off. the red standby light flashes 50 times, then the tv. comes back on for approximetly 2 minutes then goes off again, only to repeat again

Sep 28, 2009 | Sony KDF-E50A10 TV

1 Answer

I turn on the tv and it has a blue screen and no


Just try to reset so picture will back to normal again, some LCD TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.
1. Unplug the LCD TV power cord from the power outlet.
2. Unplug any connected devices (DVD, Set-top boxes, etc...)
3. Press and hold the LCD TV power button for five seconds.
4. Plug the LCD TV power cord back into the power outlet and turn on the TV.
5. Open the on-screen menu to confirm that the LCD TV is responding again.
6. Turn off the LCD TV and reconnect the devices.
7. Turn on the LCD TV.

Hope it may help you;

Regards;
VOTIT

Apr 23, 2009 | Vizio Gallevia GV42LF 42 in. LCD...

2 Answers

TV turns on, then immediately off again


hi nel2874

so, you have a television that turns off immediately after you turn it on.
It sound like your power supply on the unit is out. Because I don't know the value of your unit I cannot comment on replacing the unit. But I would recommend that you use our website to find a Flat Panel TV Repairman near you. You may want to call to get an estimate on replacing the power supply before considering replacing the unit.

Jun 22, 2008 | Televison & Video

1 Answer

LG 20LS7D TV


1. Try this - hold the menu button down for 10 seconds. TV should power up; you will have to turn off front panel buttons on menu.

2. You can also try a hard reset: Unplug TV from AC mains and remove all cables from TV. Wait about 30 minutes and replug to AC power and redo the cabling. Switch on the TV and see if it works..

3. Powering down the set or putting it in standby may have allowed the power supply to cool. Weak capacitors often go out of spec when they cool, thus preventing a section of the power supply from firing up properly again. There is a simple trick...just warm the back of the TV with a hair dryer for 5-7 mins after you have unplugged the TV. Look for the little areas of holes in the back panel of TV. Use these as your guide at where to use the hairdryer, but don't hold the dryer too close (say 5-6inches away). (Make sure the dryer is on High heat). If the TV doesn't turn on after you have heated it up (like it tries to come on but then turns off) you need to unplug the TV again, this resets it. And repeat those steps till it works. Resetting the TV after it fails to turn on is the key.

then the fly back unit is failed you need to resolder the contacts or get it serviced...............

Jun 08, 2008 | LG RE-20LA70 20 in. Analog TV LCD...

3 Answers

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ftry to unplug it and push the on/off switch...plug it back in and see if it will turn on

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