Benq SP831 ユーザーズマニュアル

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Operation
Operating in a high altitude environment
We recommend you activate High Altitude Mode when your environment is higher than 
1500 meters (around 4920 feet) above sea level, or whenever the projector will be used for 
extended periods of time (>10 hours) without shutdown.
To activate High Altitude Mode:
1.
Press MENU and then press  /
 until the 
Advanced Setup menu is highlighted.
2.
Press   to highlight High Altitude Mode.
3.
Press  /
 to select On. A confirmation 
message displays.
4.
Highlight Yes and press ENTER.
Operation under High Altitude Mode may cause a 
higher decibel operating noise level because of 
increased fan speed necessary to improve overall 
system cooling and performance.
If you use this projector under other extreme 
conditions excluding the above, it may display 
auto shut-down symptoms, which is designed to 
protect your projector from over-heating. In cases 
like this, you should switch to High Altitude 
Mode to solve these symptoms. However, this is 
not to state that this projector can operate under 
any and all harsh or extreme conditions.
Hiding the picture
In order to draw the audience's full attention to 
the presenter, you can use BLANK to hide the 
screen picture. The word 'BLANK' appears in the 
lower right corner of the screen while the picture 
is hidden. When this function is activated with an 
audio input connected, the audio can still be 
heard.
You can set a time length in the 
System Setup > 
Blank Timer 
menu to restore the picture after a 
period of time when there is no action taken on 
the projector or remote control. The length of 
time can be set from 5 to 30 minutes in 5-minute 
increments.
If the preset time spans are not suitable for your 
personation, select Disable. 
No matter 
Blank Timer
 is activated or disabled, 
you can press any key (except LASER) anytime 
you want to restore the picture.
High Altitude Mode is used when the 
environment is higher than 1500m.
Do you want to turn the High Altitude 
Mode on?
Yes
No
WARNING
Lamp
Audio
Pattern
High Altitude Mode
Password
Key Lock
Reset All Settings
Advanced Setup
EXIT   Back
Analog RGB
On
Language
Splash Screen
My Screen
Projector Position
Blank Timer
Auto Off
Sleep Timer
Background Color
Menu Settings
Input Source
System Setup
Analog RGB
English
BenQ
Disable
Auto Source Search
EXIT   Back
Disable
Disable
Blue
On
Floor Front
Do not block the projection lens 
from projecting as this could cause 
the blocking object to become 
heated and deformed or even cause 
a fire.