Machine won’t power on. Please advise

Got the machine assembled ran a few test programs. Made a small flag. Wick up this morning when to turn on the machine flipped the switch turned on the screen. Screen came up said ( no signal) checked the following ,Estop is pulled out
Power switch is on. Machine is plugged in and outlet
Has 120volts. Please advise in to which steps I should take now thanks in advance

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