First Time Setup - Vizio E321ME Quick Start Manual

FIRST-TIME SETUP
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Remove the battery cover by pressing gently and sliding away Connect the power cord to the back of the TV.
from the remote.
Plug the power cord into an electrical outlet.
Insert the batteries. The + and - symbols on the batteries
must correspond to the + and - symbols inside the battery
compartment.
Replace the battery cover by gently sliding it back into place.