What should I do if my TV won't turn on?
Verify that the power cord is securely connected to the AC socket on the TV and to a working electrical outlet. Press the POWER button on the remote, and if this doesn't work, press the POWER button on the TV itself. If the TV still doesn't power on, try plugging the power cord into a different electrical outlet.
From the official Vizio SmartCast M-Series Television manual, page 14
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