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Tv turns on goes right back off - Televison & Video

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The first thing I would do is check the power supply for leaky capacitors.

Posted on Jan 06, 2013

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My LED tv screen is dimmed on the right 1/3. After some use it eventually goes totally black?


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://electronicshelponline.blogspot.com/
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.

Sep 23, 2015 | LG 55" 7400 Series LED HDTV - 55LA7400

1 Answer

My 55ld520 screen goes black, turn off for short time comes back on but then goes black again.


Start simple by using different cables, whether they be HDMI, VGA or standard COAX cables. They could be losing the connection. Also, it's possible the power supply is wearing out and it gets too hot. You might want to simply try some spray air duster type thing to clear out any dust that can make it hot.

Sep 20, 2014 | LG 55LH40 55 in. LCD HDTV

1 Answer

Tv goes off by it self but i can turnit back on


Short circuited component/s at its main board. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience.
http://electronicshelponline.blogspot.com/ Pull up older posts there.

Mar 26, 2014 | Proscan 26LB30QD 26 in. LCD HDTV

1 Answer

Tv power supply bn44 00267b


take the back of the TV off. take the power sores out and put a new power sores in.

Nov 02, 2013 | Samsung LN52B530 LCD TV

1 Answer

Turns on for a few then goes right back off'


Sounds like you have a short causeing the TV to over heat and turn it self off too cool down.

Sep 12, 2012 | Sylvania LC320SS8 32 in. LCD Television

1 Answer

Turn on my tv and it goes right back off


tried to disconnect all the output connectors from the power supply board, then make a voltage checking if output voltage is available. if no output dc voltages or drop you have bad power supply board.

Sep 03, 2012 | Sanyo DP46849 46 in. HDTV

1 Answer

While watching tv it just turned off, we turned it back on but no pictures but there is volume. also to turn it back on we see red light and green light together flashing then it turns off. i just replaced...


MY TV TURNS OFF AFTER WE TURN IT ON IT GOES BACK OFF A FEW TIMES AND THEN STAYS ON. AND WHEN I COME HOME FROM WORK IT STARTS ALL OVER AGAIN, THAT HAPPENED FOR 2 WKS NOW IT JUST GOES OFF YOU ONLY SEE THE GREEN LIGHT ON THE FRONT COME ON(POWER LIGHT) AND IT GOES RIGHT BACK OFF IT WILL NOT STAY ON

Sep 18, 2009 | Toshiba Televison & Video

1 Answer

Stuck in standby


Sorry about that. When the tv goes bad like not turning on, the green light will blink, and goes right back to red standby light while the dtv letters will briefly show on the lower right of the tv screen, then go back to blank screen. The tv will need to be taken to an authorized service center for repair. Common causes are a bad inverter/power supply, power control board, or circuit board.

May 16, 2009 | Emerson LC320EM9 32 in. LCD HDTV

1 Answer

TV screen goes blank but power stays on


Sounds like the CRTs are going into protective blanking due to the vertical output ic needing to be resolderd. Try resoldering the vertical IC that may possibly fix the issue.

Jun 15, 2008 | Mitsubishi WS-73713 73" Rear Projection...

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