Benq Thermometer SP920P User Manual

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  37
  Operation
Eng
lish
Locking control keys
With the control keys on the projector locked, you can prevent your projector settings from being changed 
accidentally (by children, for example). When the Panel Key Lock is on, no control keys on the projector will 
operate except Power.
1.
Press  /
 or go to the SYSTEM SETUP: Basic > Panel Key Lock 
menu, and select On by pressing 
/
. A confirmation message 
displays. 
2.
Highlight Yes and press ENTER to confirm.
To release panel key lock, press and hold 
/  on the remote control 
or projector for 3 seconds.
You can also use the remote control to enter the SYSTEM SETUP: Basic 
> Panel Key Lock menu and press 
/
 to select Off.
Operating in a high altitude environment
We recommend you use the High Altitude Mode when your environment is between 1500 m –3000 m above sea 
level, and temperature is between 0°C–35°C.
Do not use the High Altitude Mode if your altitude is between 0 m and 1500 m and temperature is between 
0°C and 35°C. The projector will be over cooled, if you turn the mode on under such condition.
To activate the High Altitude Mode,
1.
Press MENU/EXIT and then press 
/
 until the SYSTEM 
SETUP: Advanced menu is highlighted.
2.
Press   to highlight High Altitude Mode and press 
/
 to 
select On. A confirmation message displays.
3.
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.
MENU
/EXIT
Keys on the remote control 
are still in use when panel 
key lock is enabled.
If you press Power to turn 
off the projector without 
disabling panel key lock, the 
projector will still be in 
locked status the next time it 
is turned on.
We recommend you use the High 
Altitude Mode by selecting it whenever 
your environment is higher than 1500 
m.
Do you want to turn High Altitude 
Mode on?
Yes
No
WARNING