Mitsubishi Hc4900 Projector User Manual

EN-31
To adjust the tone of white (COLOR TEMP.):
You can select a preset color temperature (white tone) using the menu.
(See page 25 for menu setting.)
Display the IMAGE menu.
Select COLOR TEMP. by pressing the S or T button.
Select your desired color temperature by pressing the W or X 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.
To adjust the tone of white (To customize the...

EN-32
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 25 for menu setting.)
Display the IMAGE menu.
Select GAMMA MODE by pressing the S or T button.
Select your desired gamma mode by pressing the W or X button.
To cancel the menu:
Press the MENU button.
To adjust the original ratio of change in brightness (To customize the gamma mode):
To customize (and store) the gamma mode to your preference,...

EN-33
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 23.) 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-34
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 specifi ed 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-35
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 lamp VLT-HC5000LP
Warning:
Be careful not to drop the lamp fi xing screws inside of the projector. Don’t put a metal piece or fl ammable...

EN-36
(a)
(b) 
(c) 
(c) 
(a)
Important:
Unless these 3 buttons are pressed at the same time, the lamp operation time isn’t reset.
Make sure that the STATUS indicator blinks twice and the lamp operation time is reset successfully.
The projector doesn’t turn on if the lamp cover isn’t attached securely.
Be sure to reset the lamp operation time whenever you replace the lamp.
Do not reset the lamp operation time unless you replace the lamp.
When removing the lamp from the ceiling-mounted projector
When...

EN-37
Warning:
Never use fl ammable air duster or other materials when cleaning the air-fi lter. Flammable substances may ignite 
causing fi re or breakdown when the lamp is illuminated.
Do not use fl ammable solvents (benzene, thinner, etc.) and fl ammable aerosols when cleaning the projector body 
and lens. Flammable substances may ignite causing fi re 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 any...

EN-38
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.
Problem Solution
Power can not be 
turned on.Check whether the indicators are on or off and how they are lightning.
POWER STATUS Solution
OffOffConnect the power cord to the projector.
Plug the power cord into a wall outlet. •
•
Steady red
Off
If any objects are blocking the air inlet or...

EN-39
No image appears on the screen. (continued)
Problem Solution
The screen for 
entering the password 
appears.PASSWORD FUNCTION in the FEATURE menu has been set to DISPLAY INPUT to 
enable the password lock.
Enter the password or contact the person in charge of management of the 
projector. (See page 34.) •
J
“NO SIGNAL” is 
displayed.Turn on the power of the connected device, or check whether there is something 
wrong with the connected device.
Check whether the external device output signals....

EN-40
Others
Problem Solution
The exhaust vents 
emit warm air.This air comes out after cooling the inside of the projector. You may feel hot, but this 
is not a malfunction. •
The menu can’t be 
used.The microcomputers inside the projector may be wrongly operating because of noise.
Press the POWER button to turn off the lamp and wait about 2 minutes. Then 
unplug the power cord from the outlet, wait at least 10 minutes, and plug the 
power cord back into the outlet. When the POWER button doesn't...