Mitsubishi Hc6800 Projector User Manual

EN-31
To adjust the brightness (CONTRAST and BRIGHTNESS):
You can make adjustments for the brightness of the projected image using the menu.
(See page 26 for menu setting.)Display the IMAGE menu.
1. 
Select CONTRAST or BRIGHTNESS by pressing the 
2.  p or q button.
Adjust the selected item by pressing the 
3.  t or u button.
To cancel the menu: Press the MENU button.
4. 
CONTRAST
Select to adjust the contrast of the image. Every time the u button is pressed, the image becomes brighter and more 
defined....

EN-32
To adjust the tone of white (COLOR TEMP.):
You can select a preset color temperature (white tone) using the menu.
(See page 26 for menu setting.)Display the IMAGE menu.
1. 
Select COLOR TEMP. by pressing the 
2.  p or q button.
Select your desired color temperature by pressing the 
3.  t or u button.
The color temperature of each option is as follows: 
COOL: Approx. 9300K, MEDIUM: Approx. 6500K (D65), WARM: Approx. 5800K.
To cancel the menu: Press the MENU button.
4. 
To adjust the tone of white...

EN-33
Adjusting projected images (continued)
To adjust the ratio of change in brightness (GAMMA MODE):
You can select a preset gamma mode using the menu.
(See page 26 for menu setting.)Display the IMAGE menu.
1. 
Select GAMMA MODE by pressing the 
2.  p or q button.
Select your desired gamma mode by pressing the 
3.  t or u button.
To cancel the menu: Press the MENU button.
4. 
To adjust the original ratio of change in brightness (To customize the gamma mode):
To customize (and store) the gamma mode to...

EN-34
This projector automatically and properly projects video signals supplied from the computer. However, some video 
signals may not be projected, depending on the type of the computer. In such a case, press the AUTO POSITION 
button. (See page 24.) When the signal is still not projected properly, adjust the projected image using the SIGNAL 
menu.
How to adjust the image supplied from the computer using the menu:
Carry out the following procedures according to the symptoms.
Wide strips appear....

EN-35
Password function
This projector is equipped with the password function 
that is designed for prevention of theft and wrong 
operation by children and restriction on operation by 
other than specified users. The password function has 
two modes as follows.
DISPLAY INPUT .......... When the projector is turned on, the startup screen (or splash screen) will appear 
and stay on the screen until the password is 
entered. When the password is entered, the startup 
screen will switch to the regular...

EN-36
This projector is equipped with a lamp to project images. This lamp is a consumable. It may burn out or its brightness 
may decrease during use. In such cases, replace the lamp with a new one as soon as possible. Be sure to replace the 
lamp with a new lamp sold separately that is exclusive to this projector. Contact your dealer for purchase of the lamp.
Spare lampVLT-HC6800LP
Warning: Be careful not to drop the lamp fixing screws inside of the projector. Don’t put a metal piece or flammable object...

EN-37
Replacing the lamp (continued)
To replace the lamp:
Turn off the main power switch and unplug the 
1. 
power cord.
Loosen two screws (a) using a Phillips screwdriver 
2. 
(+) and remove the left side panel from the 
projector.
(a)
Loosen the screw (b) using a Phillips screwdriver 
3. 
(+), and remove the lamp cover (c).
(b) (c)
Loosen the screws (d) using a Phillips screwdriver 
4. 
(+).
(d)
Pull the handle.
5. 
Pull out the lamp box by the handle while holding 
6. 
the projector.
Pull the lamp box...

EN-38
When removing the lamp from the ceiling-mounted projector
When removing the lamp from the ceiling-mounted projector, use the lamp replacement tray packed with the 
projector or option lamp to prevent glass fragments from scattering.Assemble the lamp replacement tray according to the procedure shown on it.
•	
Follow steps 1 to 5 on page 37.
1. 
Attach the lamp replacement tray to the projector as shown in the 
2. 
figure.
Secure the lamp replacement tray on the projector using the tape 
3. 
packed...

EN-39
Warning:Never use flammable air duster or other materials when cleaning the ai\
r-filter. Flammable substances may ignite 
•	
causing fire or breakdown when the lamp is illuminated.
Do not use flammable solvents (benzene, thinner, etc.) and flammable aerosols when cleaning the projector body 
•	
and lens. Flammable substances may ignite causing fire or breakdown while the lamp is illuminating.
Caution:
Be sure to turn off the lamp and unplug the power cord from the wall outlet before you perform...

EN-40
Before asking for repair of the projector, check the following. If the symptom persists, stop using the projector, be 
sure to unplug the power plug, and then contact your dealer.
No image appears on the screen.
ProblemSolution
Power can not be 
turned on. Check whether the indicators are on or off and how they are lightning.
•	
POWER STATUS Solution
OffOff
Connect the power cord to the projector.
•	
Plug the power cord into a wall outlet.
•	
Turn on the main power switch.
•	
Steady red
Off
If any...