Vizio E3D320VX - Manual (Page 6)

Remove the battery cover by pressing gently and sliding away
from the remote.
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.
FIRST-TIME SETUP
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Connect the power cord to the back of the TV.
Plug the power cord into an electrical outlet.
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