TV won't come on...the times button blinks for a few seconds and then the tv turns off

First understand that you need a little patience with this remote, it's a little slow, it may take a few seconds in between pushing buttons for it to react to your TV.

1)
-Turn on TV manually first.

we're going to try and get the remote paired to your particular tv

2)
-Facing RCA universal remote towards TV, press and hold both the POWER and TV buttons on the remote at the same time.. until the RCA universal remote POWER button lights up and is constantly on.

-Then press the PLAY button on RCA universal remote

(POWER button on remote should be blinking after pressing PLAY -- what the remote is doing is trying to program your TV with a list of codes. if your TV does not automatically shut off after a minute, press the PLAY button again. your TV should shut off. wait a few seconds before trying to press PLAY button again if you need to try again.)

3)
Assuming remote turned off TV. Now let's try to get the remote to turn on your TV

On the remote at top right is a REVERSE button, press that. You should see the POWER button on the remote blink once in response to you doing that.

Watch for the power on light on your TV.. your TV may take a few seconds to power on..

Wait a couple seconds. if your TV has not turned back on, press the REVERSE button again. the POWER button should blink once again in response

If your TV did not turn on. You may have to repeat pushing the REVERSE button waiting a couple seconds for the remote to try turning on your TV. For some people this can take several times, if not a dozen times. Just be sure to be patient and wait a couple seconds in between pressing the REVERSE button again. (what the RCA universal remote is doing is going through a list of codes trying to find the right model to pair to)

4)
Assuming the remote finally turned on your TV.. We are almost done. We programmed the remote to turn off the TV and turn on the TV. now we want to press the STOP button on the RCA universal remote to lock in those codes into the remote. After pressing the STOP button the light on the remote POWER button should turn off.

5)
We are done. You should be able to change the channels and raise and lower the volume of your TV.
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Blinking of power LED are fault indications. Count the number of blinks occur at one time switch on. For this number, you can get an idea about the faulty section circuit inside it. It will make troubleshooting much narrower. If you wish to get more details about the blinking codes, check this link. Pull up older posts there.

Bad main logic board. Probably won't be able to find it. You can try Encompas Parts. Good Luck to you.

My TV surname off after 5-15 minutes of use. The red light in the front blinks once every 3 seconds continuously. If I hold the power button down on the tv, it will turn on and do the same thing.

IF model number posted is correct and green power light comes on for a few seconds and then goes off:
On front of set press and hold both the Menu and Input (device) buttons at the same time for at least five seconds and release both buttons.

Power light will then blink a two digit error code like 2 blinks, 2 blinks, a pause and repeat it several times.

Let me know what error code is found and I will tell you what it means.

SD TECH

Hi,
Please let me know how many times it will blink to determine where the exact fault came from.
Jdvillanueva

Have you tried accessing the self diagnosis feature by pressing the menu and device buttons both together and holding for for 5 seconds? If not try that and let me know the error code. It will be a two digit blink sequence which will repeat a few times. Let me know what the blink sequence is.

Press Menu Button from any Remote control ( RC) by which could turn on your TV, press menu , menu drop down list will be visible on ur screen then wait 4 a minute or more till ur RC stop blinking , then go to Preference menu , go to FPA lock, turn it off. enjoy.
Deva

If the set can be turned on manually without the remote then the issue is with the remote.