Vizio E390-B1E - Quickstart Guide - Manual (Page 9)

Align the base with the neck piece and slide
it into place as shown.
Using a Phillips screwdriver, tighten three (3)
M4 12mm screws into the bottom of the base
to secure it to the neck piece.
2
Align the stand with the bottom of the TV and
slide it into place as shown.
Using a Phillips screwdriver, tighten two (2)
M6 12mm screws into the back of the TV to
secure the stand to the TV.
When you are finished, place the TV on a
stable, level surface.
3