Tv turned itself off and light is red blinking 3 times

The red light flashing is indicating the error.
depending on the make and model of the TV, the duration of the flash and number of flashes determines the error code.

WHAT IS THE BRAND AND GO TO THEIR WEBSITE AND GET THE SUPPORT

3 blinks indicates lamp door is not on or has not been reinstalled properly. This also could mean the lamp door switch has failed itself. Try removing the lamp door and putting back on, if that doesnt correct the problem then I recommend having the switch replaced.

Hi,
If red light blinks 3 times when tv refuse to power up then check lamp cover that was removed to replace lamp, make sure lamp cover is fixed in its position securely and screw is tight.
Let me know how many times red light is blinking after three second long pause IF it is not blinking 3 times.
Thanks.

Hi,
If tv shuts off and turns back On itself than lamp is weak and need to be replaced.
If tv shuts off but does not turns On itself than you will see red light blinking on tv front, let me know how many times it blinks, there would be pause of 3 seconds in blinks so count pause to pause and post here to provide you helpful info about problem.
Thanks.

Hi,
If the Lamp red light is blinking then replace lamp, replacement procedure is written in user manual and its easy.
If standby/ power red light is blinking then please count its blinking and post here. It is an error code that has info about problem in specific section of tv.
You will see 3 seconds long pause between blinks so count pause to pause.

the only way is by bringing to a tech.i think there is no need fro self-fixing with problems like this.try tapping the tv several times then turn it on.

i have the same problem

Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electro-medical.blogspot.com/
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.

Sony TV;s will give a service code, count the blinks, eg; 2-6, light will blink X amount of times, hesitate & blink again so many times. Count and report back but, I would recomend to unplug the TV's power cord, to reset the TV's system. Unplug for at least 3 minutes. I hope this was helpful.