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I hit power button on remote. The logo screen comes on then tv shuts down. Standby light blinks twice then goes out. It won’t power on again unless I unplug it for a minute.

Gerald Richards  on Samsung TV’s the 2 blinks are most commonly related to a bad power supply. Officially Samsung does not use power on blink codes. We would need to see your boards, cables etc. remove the back cover from your TV and post some good pictures with your Question. You also want to verify that your model is a UN60FH6003FXZA