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Most of these sets have a self check----if Green power light comes on for a few seconds and goes off on the front of the set press and hold both the menu and input (source) buttons at same time for at least 5 seconds and release both.
Power light will blink a two digit error code like 2 blinks, 2 blinks a pause and repeat it for a total of 5 times.
Let me know if you get a error code and what it is.
Unplugging power from the set clears the error code so if that has been done you will have to try to turn set on, let it fail and then do the self check again.
When the set powers off after pressing power try pressing the menu and input buttons on the set both in together and hold for 6 seconds to see if the power indicator will blink a two digit blink code which repeats a few times indicating a specific error. Let me know the blink code if any.
When the power light comes on and then goes out, on the front of the set press both the MENU and INPUT buttons at the same time and hold them both in for at least 5 seconds and then release both buttons.
The power light will blink a 2 digit error code and repeat it at least 5 times.
The most common error will be 2 blinks, 2 blinks- a pause and then it will repeat it for a total of at least 5 times.
To get it to repeat this--you have to unplug the set, try to turn it on again and repeat the process.
The error codes are to try to narrow down where the problem is.
Let me know what error code you find and I will tell you what it means.
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