Vivitek D751ST ユーザーズマニュアル

ページ / 74
DLP Projector—User’s Manual 
Cleaning the filter (filter: optional parts) 
The air filter prevents dust from accumulating on the surface of the optical elements inside the 
projector. If the filter is dirty or clogged, your projector may overheat or degrading the projected 
image quality. 
1.  
Turn off the projector, and 
unplug the AC power cord 
from the AC outlet.
 
2.  
Cleaning the filter with a 
vacuum cleaner.
 
 
 
 
Caution: 
Recommend avoiding dusty or smoky environments when you operate the projector, it may 
cause poor image quality. 
If the filter is heavily clogged and unable to clean, replace a new filter. 
 
Note:  
Using a ladder is recommended to access the filter. Do not remove the projector from the 
wall mount. 
— 46