Vizio M75-C1 power light turns On,flashes for few seconds and turns of

Vizio M75-C1 power light turns On,flashes for few seconds and turns of

Vizio M75-C1 power light turns On,flashes for few seconds and turns off. I have replaced all 3 power boards, but it did not help. Any help is highly appreciated.

ANSWERS:

"@hkk123 okay so you will need to check the rest of the boards. This is happening because your Vizio does not pass it’s self check. We would need to see the rest of the boards and the layout so we can try to assist your further. Post some good pictures of your boards with your QUESTION Adding images to an existing question

It does sound like a main board issue so you will need a multi-meter to check the outputs."