Epson BrightLink 575Wi Guide D'installation page 10

7. Determine the aspect ratio of the board or of the images that will be projected. For
new computers or laptops, this will most likely be WXGA (16:10). For older
equipment, this will most likely be XGA (4:3). You may need to consult your IT
department for this information.
___ 4:3 XGA
8. Using the tables on pages 14 to 21 for your aspect ratio and desired image height (h),
find the required distance between the top of the image area and the bottom holes
of the wall plate (c).
9. Determine the position for your projector installation by adding the values for (f), (h),
and (c), plus an additional 10 inches for the height of the wall plate plus the cover.
If the ceiling height of your room (as noted in step 1) does not meet the minimum
ceiling height required for your board, you may need to select a smaller image size or
move the board to a lower position on the wall.
10. After confirming your image size, use tape or a pencil to mark the distance (c) from
the top of the image area on the board to the bottom holes of the wall plate.
11. Align the line (horizontal) on the template sheet with the (c) mark, then align the
center line on the template sheet with the center of the image area. Follow the
instructions on page 23 to install the projector.
Installation worksheet for projecting on a plain wall
1. Measure the ceiling height (distance from the floor to the ceiling).
2. Determine the desired aspect ratio of the image. For new computers or laptops, this
will most likely be WXGA (16:10). For older equipment, this will most likely be XGA
(4:3). You may need to consult your IT department for this information.
___ 4:3 XGA
3. Using the tables on pages 14 to 21 for your aspect ratio, select the largest image size
available for your ceiling height.
Image height (h)
Image width (w)
4. Determine the desired distance from the floor to the bottom of the image area (f).
The recommended minimum distance is 30 inches. Images appearing less than 28
inches from the floor may be obstructed for some viewers.
5. Find the top of the projected image area by adding distances (f ) and (h).
6. Use the tables on pages 14 to 21 to determine the required distance from the top of
the image area to the bottom holes of the wall plate (c).
7. Add:
Required distance from top of image area to bottom holes of wall plate (c)
Height of image area (h)
Distance from floor to bottom of image area (f )
Height of wall plate plus cover
If the total exceeds the ceiling height, you will need to reduce the image size or
reduce the distance from the floor to the bottom of the image area.
___ 16:10 WXGA
___ 16:10 WXGA
10
___ 16:9 Widescreen
___ 16:9 Widescreen
_____ (c)
_____ (f)
_____ (h)
_____ (c)
+10 inches
_____ total
_____
_____ (h)
_____ (w)
_____ (f )
_____
_____ (c)
_____ (c)
_____ (h)
_____ (f )
+10 inches
_____ total