Mitsubishi Electric HC3100U, User Manual

EN-32

Using filter

Filter cover

(a)

(a)

Holder

Holder

Filter cover

Filter

Filter cover

(a)

This projector has a filter cover (filter) for keeping dust out. When using the projector in a dusty place, attach this filter 

cover. 

Installation

Before installing this filter to the projector, be sure 
to unplug the projector from the outlet.

1.  Fit three hooks of the filter cover into the projector.
2.  Push the filter cover in the direction of the arrow.

•  If you use excess force to push the filter cover, 

the hooks may be damaged.

3.  Tighten the attachment screw (a) firmly. 

Cleaning

Warning:

Never use flammable air duster or other materials when cleaning the air-filter. Flammable substances may ignite 
causing fire or breakdown when the lamp is illuminated.

Before cleaning, be sure to turn off the main power switch and unplug the projector from the outlet.

•  Clean the filter frequently (at least once a month). When dust accumulates on the filter at the air inlet, the 

temperature inside the projector may rise abnormally high, causing damage to the internal parts and reducing the 
lifetime of the panel.

•  In case of any abnormality including an abnormal rise of the inside temperature, the projector may automatically turn off 

and go into the standby mode where the light source lamp is turned off in order to protect its internal parts.

Cleaning the filter

1.  Remove the screw (a) from the filter cover.

•  Be careful not to lose the screw.

2.  Move the filter cover in the direction of the arrow.
3.  Release three hooks and remove the filter cover from 

the projector.
•  If you use excess force to pull the filter cover, the 

latches may be damaged.

4.  Remove the holder that is retaining the filter while 

pushing the tab of the holder in the direction of the 
arrow.

5.  Remove the filter from the filter cover.
6.  Clean dirt and dust adhering to the filter using a 

vacuum.
•  If stubborn stains persist, wash the filter with diluted 

detergent, rinse with water, and dry well.

7.  Attach the filter to the filter cover.

•  Make sure that the filter is positioned correctly.

8.  Fit and push the holder as far as it will go and press it in 

the direction of the arrow to install.

9.  Fit three hooks of the filter cover into the projector.
10. Push the filter cover in the direction of the arrow.

•  If you use excess force to push the filter cover, the 

hooks may be damaged.

11. Tighten the attachment screw (a) of the filter cover 

firmly.

•  Don’t use any other filters than that designed for this projector. 
•  If you are disturbed by the light emitted from the side of the projector, attach 

the filter to block the light. Further, if you are disturbed by the light emitted 
from the hole of theft-proof lock, place the supplied cap on the hole. 

Cap