Boxlight Cd-40m Users Guide

14
Using the Projector
The projector is equipped with a self-locking, quick-release eleva-
tor foot and button (Figure 10).
To raise the projector:
1Press and hold the elevator button (Figure 9).
2Raise the projector to the height you want, then release the 
button to lock the elevator foot into position.
FIGURE 10
Adjusting the height of the projector
To lower the projector:
1Press the elevator button.
2Lower the projector. 

15
Using the Keypad Buttons
The keypad is lit orange when the projector is on and lit green 
while the menus are displayed. While the menus are displayed, 
the volume, source, and standby buttons act as navigation but-
tons. See “Using the On-Screen Menus” on page 17 for details.
FIGURE 11
Keypad
Menu 
Press menu to open the on-screen menus (the keypad lights 
green). Press 
menu again to close the menus. When you close the 
menus, the projector saves any changes you made. For more 
information about the...

16
Using the Projector
Standby  
When you press standby, the display and audio turn off and a 
blank screen is displayed for 15 minutes. You can change the 
amount of time the projector stays in standby mode; see 
“Standby Time” on page 23 for details.
•If you press standby again within 15 minutes, the projector 
returns to normal operations immediately.
•If you press standby again after 15 minutes, there is about a 
30 second delay before the lamp turns back on.
•If you don’t press standby again, the...

17
Using the On-Screen Menus
The projector
 has six drop-down menus that allow you to make 
image adjustments and change a variety of settings. Most of these 
adjustments aren’t available directly from the keypad. 
NOTE: Some menu items may be 
grayed out at certain times. This 
indicates the item is not applicable 
to your setup (for example, video 
standards do not apply to com-
puter sources) or the item is not 
enabled until another selection is 
made (for example, Manual Track-
ing is not available...

18
Using the Projector
Display Menu 
 
FIGURE 13
Display menu
Brightness
Adjusting the brightness changes the intensity of the image.
•Press the left mouse button to darken the image.
•Press the right mouse button to lighten the image.
Tint
The tint adjusts the red-green color balance in the projected 
image. Changing the Tint setting has no effect on PAL or SECAM 
video sources. 
•Press the left mouse button to increase the amount of green in 
the image.
•Press the right mouse button to increase the...

19
Color
The color setting adjusts a video image from black and white to 
fully saturated color.
•Press the left mouse button to decrease the amount of color in 
the image.
•Press the right mouse button to increase the amount of color in 
the image.
Blank Screen
Blank Screen determines what color is displayed when there is no 
active source and when the projector is in standby. Click either 
mouse button to toggle between the blue and black options.
Reset All
Click either mouse button to reset all the...

20
Using the Projector
Audio Menu
 
FIGURE 14
Audio menu
Vo l u m e
NOTE: Changing the volume
from the menu is the same as
changing it using the keypad.•
Press the left mouse button to decrease the volume. 
•Press the right mouse button to increase the volume.
Volume adjustments you make are saved for each source.
Tr e b l e
The treble setting controls the high frequencies of your audio 
source. 
•Press the left mouse button to decrease the treble. 
•Press the right mouse button to increase the treble....

21
Image Menu 
FIGURE 15
Image menu
Auto Image
NOTE: Some screen savers inter-
fere with the operation of Auto 
Image. If you’re experiencing prob-
lems, try turning your screen saver 
off, then turning Auto Image off 
and back on.
The projector automatically adjusts tracking, signal synchroniza-
tion and vertical and horizontal position for most computers 
(Auto Image does not apply to video sources). If you want to 
adjust these features manually, you must turn off 
Auto Image first 
by highlighting...

22
Using the Projector
Manual Tracking
The projector adjusts tracking automatically to match the video 
signal from your computer. However, if the display shows evenly 
spaced, fuzzy, vertical lines or if the projected image is too wide 
or too narrow for the screen, try turning 
Auto Image off then back 
on again. If the image is still bad, try adjusting the tracking man-
ually:
NOTE: The Manual Sync,
Manual Tracking, Horiz.
Position and Ve r t .  P o s i t i o n
options are available only for
computer...

23
Controls Menu 
 
FIGURE 16
Controls menu
Video Standard
NOTE: If you already know the 
video standard used in your geo-
graphical area, it’s often best to 
manually select it.
When Video standard is set to Auto, the projector attempts to 
pick the video standard (NTSC, NTSC 4.43, PAL, PAL-M, PAL-N, 
or SECAM) automatically based on the input signal it receives. 
(The video standard options may vary depending on your region 
of the world.) The input signals for SECAM, PAL-M, and PAL-N 
video cannot be...