5756
Maintenance
The air filter prevents dust and debris from getting inside the projector. Never run the
projector with the filter removed. It is recommended that the air filter is cleaned regularly.
(A recommended measure is about once for every 50 hours of use.)
CAUTION
•Request cleaning and maintenance of a ceiling-mounted unit from your projector
dealership.
1

Unplug power cord.

2

Remove the air filter cover.

Of the upper connection terminal cover is on, remove that
first.
Remove the air filter cover by pressing on the part in the
figure with your finger.
3

Remove the air filter.

Remove the air filter from the air filter cover. It can be
disassembled into the air filter cover, air filter, and filter
holder.
4

Clean the filter.

Carefully remove the dust and dirt from the air filter cover,
air filter, and filter holder with a vacuum cleaner or the like.
Be careful not to let the air filter be sucked into the
vacuum cleaner.
5

Assemble the air filter.

Insert the air filter into the air filter cover, and lock it in
place by putting the pegs of the filter holder through the
holes in the air filter cover.
6

Replace the air filter cover.

Notes
•Allowing dirt and dust to build up on the air filter will worsen the air circulation inside the
projector, causing the internal temperature to rise, causing the projector to stop working
or malfunction.
•Insert the air filter cover all the way in. Leaving gaps will allow dust and dirt to get inside
the projector.
•If you wash the air filer with water, make sure to dry it completely before replacing it.
•If the air filter is torn, consult with your dealer about replacing it with a new one.
Continuing to use a ripped filter will allow dust and dirt to get inside the projector.
●When the wireless LAN PC card is being used
Manual Auto (Switch to PC card input when the PC card is inserted)
Ad hoc Infrastructure
See page 34
[ : Enter setting mode] [ :Selection] [Apply: ]
Off 64bit 128bit
Set the desired string (5 or 13 characters)
[ : Enter setting mode] [ : Shift column] [ :Set character] [Apply: ]
Set the desired string (1 to 14 characters)
[ : Enter setting mode] [ :Shift column] [ : Set character] [Apply: ]
Return the wireless LAN configuration to the default settings
[ : Enter setting mode] [Yes No] [Apply: ]
DescriptionItem
Input select mode
Transmission mode
Channel
Encryption
Key
Projection
name
Setting
initialization
p.34
Note
•Wireless LAN settings are enabled after the menu disappears.

■Reset menu (Special menu)

This menu is displayed when other menus are not displayed, and the button is held
down until the menu appears.
•When the screen is placed vertically, and Auto keystone correction is executed, but
the keystone correction is not successful, stow the foot adjuster in its original position,
place the projector on a flat surface, select Horizontal reference value reset, and press
the button.
•Select Reset All and press the button to return all menu items to the factory settings.
Reset the horizontal reference value for Auto keystone correction
[ : Enter execution mode] [Yes No] [Apply: ]
Reset all menu items to their factory settings
[ : Enter execution mode] [Yes No] [Apply: ]
DescriptionItem
Horizontal reference
value reset
Reset all
Air filter cleaning
Filter holder
Air filter
Air filter
cover
USB
COM
(Y/P
MONITOR
CONTROL
1
Air filter cover
Vacuum nozzle

Using the menus (Continued)