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Tv fault my tv is turning itself on and off

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Is somone standing behind you with the remote ?

Posted on Jan 21, 2009

  • lineation Jan 21, 2009

    seriously its worth checking if remotes close to you are causing problems

    you posted so long ago ya probably sorted it anyway

    if you have any remote control extenders it would be a good idea to switch em off

    If you have more than one remote that can control the system check down the side of the sofa

    or ....

    ya partners hand / is someone sitting on it

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Why does the volume go up or down by itself as well as the tv turns on and off and changes changes by itself?


Sounds like main power regulator board fault. Contact any service technician. This is not a user repairable fault. Gopakumar Gopalan Google

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Alba tv blowing the 12v dc adaptor


Check the adapter itself bow out, when it is plugged to Wall AC socket. Do not load it to TV, and check this. If it blows up, the fault is with the adapter itself. If it don't, the fault must be within the TV circuit.

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It sound like its fly-back transformer side circuit fault. This is not a user repairable fault. Contact any service technician.

Jun 10, 2013 | LG 42PC3RA 42 in. HD-Ready Plasma TV

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Its turns on and off by itself


The display on screen denotes the color system to which your TV is set now. If it shuts down intermittently, there is fault with component/s on it main circuit board. Contact any experienced service technician, as this is not a user repairable fault.

Aug 12, 2012 | Coby TFTV1925 19 in. LCD TV

1 Answer

I turn my unit on with the TV and it runs for about 15 minutes an then the unit turns itself off. I turn it back on and it last about 3 seconds and turns back off. Unit is not hot and is 4 years old.


CAPS (capacitors) on the power supply board are going bad. TV putting itself into fault protection by turning itself off..... If you can give the model number I can better help you.....

Jun 18, 2011 | Televison & Video

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I have a 54" Mitsubishi tv that turned itself off


It depends what the fault is and the cure.
Get an engineer to give you an estimate for the repair.

Mar 22, 2011 | Mitsubishi VS-45609 TV

1 Answer

Turned tv on 2night had picture and sound for approx 3 minutes then tv turned itself off had 2 flashing red lights turned tv back on no picture or sound then turned itself off again


B+ over current protection (OCP), unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.

Mar 16, 2011 | Sony Televison & Video

1 Answer

Keeps turning itself off. Reckon its an overheating issue.


LCD TV turning itself off is not necessarily overheating.
Often, because of a faulty component, capacitors can accumulate electrostatic charge until an error is detected, or a fault condition can last for a while, until a problem is detected, and the protection circuit will force the TV to shutdown.
The only temp sensor that can shut down because of overheating is placed on the main board, and TV shutdown after a while is often not caused by overheating on LCDs.
Parts that often cause shutdown after a time are Power Supply Unit, Inverter, and main controller board. Parts must be tested to find the fault. The technician can follow the diagrams detailed on service manual to find the fault.
Regards.

Jul 04, 2009 | Televison & Video

1 Answer

Tv Turn sound on, No Picture, turns itself off within seconds


The TV is trying to go on protect mode because an internal fault had been detected. For that reson the protection circuit keeps turning off TV continuously.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

Also ensure that the fault is not coming from a faulty receiver box sending bad signal, check if you get same problem with no receiver box or dvd connected.

If that does not work, and you keep having a flashing led on front of the TV, and tv turning off by itself after a while, that indicates a fault condition.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible reasons.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , startingthe flashing light.


If you are in situation one, then theTV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

Common faults that can occur are a blown capacitor on power board, a convergence IC has blown, or a fault on Digital board.

Check also the video cable or any external connection cable, if the cable is shorting, or the connector is bad, you can get same flashing state because of the video cable.


If under warranty contact the manufacturer ringing the number on the user manual

May 23, 2009 | Sony KLV-30HR3 30 in. LCD Television

1 Answer

TV turns on & off


Hi there!
Exterior equipment attached to a standard tv cannot cause the set to switch on/off by itself.
I think you may have a power supply fault or else loose solder connections on the board, hence the "warming up" intro before the fault shows itself.
My suggestion would be a service technician if you are not familiar with electronics or TV's. Regards, JUS004

Mar 23, 2008 | RCA TruFlat 27F520T 27" TV

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