Sony SU-WL830 Manuel D'instructions page 16

Note
 We recommend you to check the
position of TV in the viewing
environment.
2
Align
WM1
make six marks.
Note
 Use a level to check whether
level.
US
16
to the wall and
WM1
3
Drill pilot holes on the marks.
4
WM1
is
75 mm
(3 inch)
10 mm
(13/32 inch)
1, 2, 3, 4, 5, 6
WA1