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My LG TV is blinking blue and red light. I can't turn the power on.What should I do?

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I had the same issue and it turns out it was very dusty. So I blew through the air vents in the rear and this fixed it ????

Posted on Feb 19, 2019

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6ya6ya
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Posted on Jan 02, 2017

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ginko
  • 19396 Answers

SOURCE: toshiba 46H84 tv turned off light blinking

The TV is on protect mode.

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

If you want to repair at your own expenses, just locate any good qualified repairer.

Posted on May 22, 2009

  • 5 Answers

SOURCE: red blinking light when tv is turned off

if this is a 37lg30 i have brand new spare parts. the tv was never used it was dropped and the screen was damaged so i just took out the parts out. i was originally looking for some one that had a problem with there tv but a good screen like you but its easier to ship out the boards.

Posted on Jun 06, 2009

dave1645
  • 834 Answers

SOURCE: lg 26lg30 light blinks red blue wont turn on.

you have a bad cap in the power supply
these are can shaped device thet if bad will vent anf put up on the top the valoue is wrtten on the side trplace them and you should be good to go

Posted on Nov 06, 2009

hawk127311
  • 350 Answers

SOURCE: the tv wont turn on. the red light blinks 9 times.

There is a problem with one or two of the diodes on the G board.
Zero Crossing Detector 9 times 9:0 or 9:1
Probable cause • D6116 or D6301 is open (G Board)
symptom • No picture
I hope this helps and good luck!
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Posted on Nov 11, 2009

  • 1039 Answers

SOURCE: power light keeps blinking Red and TV will not turn on

Is the light blinking constantly or is there a long pause then more blinking. If constant check the lamp door switch . Usually it is broken or jammed. If you jumper it and the set comes on that it. 4 blinks is bad fan.

Posted on Mar 26, 2010

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you have a bad cap in the power supply
these are can shaped device thet if bad will vent anf put up on the top the valoue is wrtten on the side trplace them and you should be good to go

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