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4 Positioning the Projector
BrightLink 475wi+/485wi+ can project up to 100 inches diagonally for a WXGA image or 88 inches diagonally
for an XGA image. You can project onto a pre-installed whiteboard or directly onto a plain wall. The height of
the included wall mount determines the maximum image size and how high the image appears on the wall or
whiteboard. The distance of the projector from the wall (once it is mounted on the adjustable arm of the wall
mount) also affects image size and position.
If you are planning to project on a whiteboard, the image may not fill the entire board, depending on the
aspect ratio. If you match the image height to the board's height, gaps may appear on the sides of the board.
Use the following worksheets to determine the proper location of the wall plate on the wall. If you are
projecting onto a pre-installed whiteboard, use the worksheet below. If you are projecting on a plain wall, use
the worksheet on page 9.
Installation worksheet for projecting on a pre-installed wall-mounted
board
1.
Measure the ceiling height (distance from the floor to the ceiling)
2.
Measure the height of the board's image area (h).
3.
Measure the width of the board's image area (w).
4.
Measure the distance from the floor to the bottom of the board's image area (f ).
5.
Measure the distance from the ceiling to the top of the board's image area (d).
6.
Measure the thickness of the board (distance from the projection surface to the wall) (x). _____ (x)
10 in. (254 mm)—height of
wall plate plus cover
Required distance from top
of image area to wall plate (c)
Height of
image area (h)
Width of image area (w)
Distance from floor to
bottom of image area (f)
8
Distance from ceiling to
top of image area (d)
Diagonal size of
image area (S)
_____
_____ (h)
_____ (w)
_____ (f )
_____ (d)
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