Question about Toshiba 36A40 36" TV

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Tv shuts off and turns on by itself

The model number is 37av502u

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The fault is with its main board, horizontal output section circuit. This is not a user repariable fault.

Posted on Jul 24, 2013

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Posted on Jan 02, 2017

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Toshiba 37 inch flat screen 37AV502U keep turning itself on then off randomly. Any ideas what it could be?


Fault to the main power supply regulator section. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/

It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

Apr 20, 2016 | Toshiba Televison & Video

1 Answer

My phillips is making a loud buzzing noise, no picture, then it shuts off


presuming it has one two choices: contact Philips (good luck there) or Google the model number with "color wheel"

Oct 31, 2012 | Philips 50PL9126D/37B 50" DLP TV

1 Answer

I have a model number PT-50LCX64 Panasonic rear projection TV. After turning on the TV about 3 minutes will elapse and TV will automatically turn off by itself.


Probably the fan isn't working or is dirty and needs cleaning. The projector bulb is overheating and shutting down the TV. Clean or replace the fan.

Jul 09, 2011 | Televison & Video

2 Answers

Turn television on, and it turns itself off after a few seconds.


Hi,
Let me know model number and brand of your tv to find out possible reason of its shut down.
Model number and brand info would be written at rear of tv.
Thanks.

May 19, 2010 | Televison & Video

1 Answer

Loss of favorite channels when tv is turned off. This is a 37" Toshiba LCD tv.


Redo it again lost power to tv,sometime loss Data save.Data dossn't dissapper only lost.

Jan 13, 2010 | Toshiba 37AV502U 37 in. LCD HDTV

1 Answer

RCA TV, model number 32V550T. No picture but sound is fine.


hiya

this sometimes is quite simple to fix as it cud be a dry joint on the circuit board where the tube motor sits.


or it cud be the tube is on its way out, which wud be cheaper to buy a new tv rather than have it fixed

rik

Feb 24, 2009 | RCA 32V550T 32" TV

1 Answer

TV shuts itself off..red light blinks 7 times.


The 7 blinks usually indicates a high voltage shutdown situation. Without the specific model, I can;t give you details about parts etc. The options are a defective flyback transformer or problem with the voltage regulation circuits. Please update this with the model number and I'll post additional details as soon as I can.

Thanks,
Dan

Jan 30, 2009 | Televison & Video

1 Answer

The number 2 is being displayed in the upper right corner of the TV. modle 37AV502U


what brand is it? turn off and unplug it the plug back up and start set it may help

Nov 07, 2008 | Televison & Video

1 Answer

I have an RCA SDTV Model: 24V414T The TV shuts off by itself after 1-2 min. and turns on by itself in the next 1-2 min and the process goes on. Can anybody help with this problem. Thanks


i have an rca tv shuts off by itself lite only the standby power after 2-5 minutes you can turned it on and will off automiticaly pls. help me with my tv model 24v414t.

Sep 21, 2008 | Televison & Video

1 Answer

Watching tv and it turn off


Please update this with a make and model number. WIthout that information there is little assistance I can provide. Also, does this occur all the time or only after the set has been on for a while?
Thanks,
Dan

Apr 08, 2008 | Televison & Video

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