Question about Emerson EWL20S5 20 in. EDTV-Ready LCD Television

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Prolbem T.V. will come on for about 10 sec. and then powers itself off.

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  • SYLJOHN May 06, 2008

    power on

    screen & sound for 10 seconds

    menu-sleep mode says "0 minutes" which I can not change fast enough

    power down



    time after time

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  • 81 Answers

How old is tv?? and the best way to see if its the power botton is to try and hold for a few seconds and if it don't stay powered on then unplug and replug .....other then that sounds like power supply

Posted on Apr 01, 2008

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Why does it turn from blue to black after 10 sec.?


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced.

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Shuts off in 10 sec


mayble the ir remote panel at the back

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Tv turn itself off after 10 seconds


It sounds that the fault is with its main digital board. A start signal should come to the P/S board, from the main board, after the set is powered ON. Check whether this voltage comes to it. Refer to its repair manual for details. To get some details, http://electronicshelponline.blogspot.com/Pull up older posts.

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Cant get tv to stay turned on ,,,after about 10 secs,,,it turns itself off


if you know some basic electronics repair just proceed to the power supply board the look for any bulging electrolytic capacitor ,sometimes not bulged but if test it with capacitance checker it was leak and need replacement.

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Your power supply is probably bad, that happened to me cost $100 to fix.

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My Panasonic viera tv will turn on and off but no other buttons work On the remote or on the tv itself


Try unplugging power cord for 10 sec. or for over night. That might be the trick. I did the same trick on a satillite receiver and a DVD player that got stuck like your tv is doing and it worked, doesn't hurt anything to do so. Hope this helps.

Feb 29, 2012 | Panasonic VIERA TH-65PV500 65 in. Plasma...

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Dead, power light flashes 10 times then nothing for 4 seconds then flashes 10 times then repeat. This is after I inserted an SD stick.


Unplug,replug the tv about hour later.Tv will,reset itself,back to factory setting.Should have power now.Still have the same problems.The power supply board is dead.That the board,where the power a/c plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

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1 Answer

Blue light


Okay, I found a fix! Called JVC, spoke to somebody there, here it is:
1)unplug the TV completely, no wall no power strips, completely
2)wait 10 sec
3)plug TV back in and Turn it on, the light will still be doing the same thing
4)wait 30 sec
5)ON THE TV, not the remote, locate the menu, volume (-) and power button.
6)while simultaneously holding down the menu and volume (-) button, pressed the power button ONCE and continue to hold the other 2 for 10 sec.
7)on the remote control, go to menu>settings>system info
*** now this I know as a FACT will work on systems that display: JVC - ver.5.32FO001, but I don't know of any other versions***
8)press the mute button on the remote twice
9)unplugg TV again and wait 10 sec.
10) plug TV in and turn on

It SHOULD be working normally now... Thanx to the guys a JVC support for this one, I know it seems like an obvious first place to look, but sometimes it isn't. I for one checked online forums first.

Nov 27, 2008 | JVC LT-42X579 42 in. LCD TV

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