Boxlight Cp755ew User Manual

							
Multimedia LCD Projector
 
 Video Mode_  
-40-
 
1. PICTURE
Brightness 000/100 Adjusts the overall image brightness 
Contrast 000/100 Adjusts the difference between light and 
dark areas of the image 
sharpness 000/006 
Adjusts the image sharpness 
Color 000/100 Adjusts the image color 
Tint 000/100  Adjusts the image tint 
Display mode  Adjusts the color temperature of the 
image 
 
Powerful 
Video 
Presentation  Natural  
Cinema    User  Enhance brightness 
Keep the soft tender color 
For computer presentation use 
Nature color 
Enhance contrast mode for Cinema 
mode adjustments of each RGB color 
 
User Red 
User Green 
User Blue 
000/100 
000/100 
000/100 
  
						

							
Multimedia LCD Projector
 
-41-
 
2.AUDIO
Volume 000/040 Adjusts the volume 
Mute On/Off Mutes the volume on/off 
  
						

							
Multimedia LCD Projector
 
-42-
 
3.SETTING
Auto keystone Execute Automatically Corrects keystone distortion
in image i.e. press once to do once 
Keystone V -80/+80 Corrects vertical keystone distortion in 
image 
Auto search On/off 
Search signal source automatically. 
  
						

							
Multimedia LCD Projector
 
-43-
  
						

							
Multimedia LCD Projector
 

						

							
Multimedia LCD Projector
 
-45-
 
5.PRESENTATION
Auto ceiling On/off Automatically inverts the image when the 
projector is turned upside down i.e. when 
the projector is mounted on the ceiling 
Front Execute 
Normal projection mode 
Ceiling Execute Inverts the image vertically, used when 
the projector is mounted upside down 
Rear Execute Inverts the image horizontally, used 
when projecting onto a rear projection 
screen 
Ceiling and   
Rear 
Execute Inverts the image horizontally and 
vertically, used when the projector is 
mounted upside down and projecting 
onto a rear projection screen 
Auto Brightness Normal 
Economic 
Auto detects brightness; it turns to 
economic mode automatically when the 
brightness is low. 
Lamp mode Normal 
Economic Economic mode re
duces the lamp 
brightness economic to extend lamp life 
and quiet the projector 
Lamp timer   Show Lamp timer 
  
						

							
  Ceiling Mounted Installation Guide 
 
Multimedia LCD Projector
 
Attach the optional ceiling mount at four-suspension bracket fixing points when
suspending the from a ceiling. 
*A specia
l method of installation isrequired in order to suspend theprojector
from the ceiling. Please ask your dealer for more details.  
-46-
 
 
  
						

							
  Cleaning the Air Filter 
A. When the air filter becomes clogged  with dust, etc., the projector may 
overheat and turn itself off to prevent internal damage. 
Multimedia LCD Projector
 
Maintenance and Troubleshooting
Cleaning the projector                                                 
Warning: Always unplug the projector before performing any maintenance.
Clean the p
rojector case by wiping it gently with a soft cloth. 
If necessary, 
the case canbe cleanedusing aneutral detergent and a soft cloth
ensure the case is completely dry be fore turning the projector back on. 
Cleaning the lens                                                     
Use a commercially available airblower, oruse lens clean in g paper and lens
cleaner approved for use  on optical coatings. 
Do not clean the lens with  harsh materials or subject 
the lens to shock, as it
can easily become damaged. Close the  lens cover when the projector not in 
use. 
-47
-
 
B. Clean the air filter every 100-hours.
*If the filter is difficult to clean or if  it is deteriorating, it should be replaced  
1.Remove the filter cover fr om the bottom of projector. 
2.Pull out the air filter. 
3.Install the new air filter. 
  
						

							
W
arning: Do not touch the bulb. Touchingthe bulb will greatly
decrease the life of the lamp and could cause the bulb to explode.  
5. Slide the replacement lamp into place and press firmly to seat the lamp.
6. Reinstall the screws removed in step 3. 
7. Reinstall the lamp door and press on  the side closest to the lens until the 
latch snaps into place and the lamp door is flush with the top of the 
projector. 
 
Multimedia LCD Projector
 
Lamp Replacement
Caution : The lamp and inside of the projector become very hot while
the projection lamp is lit. Allow the proj ector to cool for at least 15 minutes 
prior to opening the lamp door. 
1. Release the Lamp Door Latch using  a small screwdriver or similar tool 
to slide the latch towards the projector lens. 
2. Remove the Lamp Door. 
3. Remove the two Phillips head screws that hold the lamp in place. 
4. Grasp the handle on the top of th e lamp and pull the lamp straight up 
out of the projector. 
-48
-
  
						

							
Multimedia LCD Projector
 
Indicators 
The Power and Lamp indicators show the status of the projector. Before 
requesting repair, check the projector  status using the chart below. If the 
problem cannot be resolved contact your dealer. 
-49
-
 
Power 
(Green)
 
Lamp 
(Red)
 Condition Notes 
Slow 
flashing 
  
Off 
 
Stand by 
mode
 *Projector is ready to be turned on (normal) 
On 
 
Off 
 
On mode *Projector is on and operating normally 
On 
 
Slow 
flashing 
  
Cool-down  mode
 
*Projector is in cool -down mode and will not 
respond to user input (normal)
 
On 
 
Fast 
flashing 
  
Fan-fault 
mode 
* The projector has detected a problem with an 
internal fan, the lamp will shut off automatically, 
contact your dealer
 
Fast 
flashing 
  
On 
 
Lamp-cover  open
 
*The lamp cover is open  or there is a problem 
with the lamp. If the lamp  door is closed and 
replacing the lamp does not correct the issue, 
contact your dealer.
 
Fast 
flashing 
  
Fast 
flashing 
  
High 
temperature *The projector has ov
erheated and shut the 
lamp off. Correct the over temp condition 
immediately.
 
1. Check that the ventilat ion slots are free from 
obstructions 
2. Check the cleanliness of the air filter. 
3. If the condition persis ts, contact your dealer