BenQ TH671ST User Manual - Page 36

Settings, Baud Rate, Test Pattern, Quick Cooling, High Altitude, Password, Key Lock, HDMI Range

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HDMI Settings Baud Rate Test Pattern • HDMI Range: Sets the HDMI Range to Auto, Full, or Limited. Selects a baud rate that is identical with your computer's so that you can connect the projector using a suitable RS-232 cable and update or download the projector's firmware. This function is intended for qualified service personnel. Adjusts the image size and focus and check that the projected image is free from distortion. Quick Cooling Select On enables the function and projector cooling time will be shortened from a normal 90-second duration to approximately 15 seconds. We recommend you use the High Altitude Mode when your environment is between 1500 m -3000 m above sea level, and ambient temperature is between 0°C-30°C. 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. High Altitude Mode 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. Password Key Lock Do not use the High Altitude Mode if your altitude is between 0 m and 1500 m and ambient temperature is between 0°C and 35°C. The projector will be over cooled, if you turn the mode on under such a condition. For security purposes and to prevent unauthorized use, you may set up password security for the projector. See Utilizing the password function for details. • Change Password You will be asked to enter the current password before changing to a new one. • Power On Lock Limits use of the projector to only those who know the correct password. With the control keys on the projector locked, you can prevent your projector settings from being changed accidentally (by children, for example). When you select On to enable this function, no control keys on the projector will function, except POWER. To unlock the keys, press and hold on the projector for 3 seconds. 36 Menu operation

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36
Menu operation
HDMI
Settings
•
HDMI Range
: Sets the
HDMI Range
to
Auto
,
Full
, or
Limited
.
Baud Rate
Selects a baud rate that is identical with your computer’s so that you can connect
the projector using a suitable RS-232 cable and update or download the projector’s
firmware. This function is intended for qualified service personnel.
Test Pattern
Adjusts the image size and focus and check that the
projected image is free from distortion.
Quick Cooling
Select
On
enables the function and projector cooling time will be shortened from a
normal 90-second duration to approximately 15 seconds.
High Altitude
Mode
We recommend you use the
High Altitude Mode
when your environment is
between 1500 m –3000 m above sea level, and ambient temperature is between
0°C–30°C.
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.
Do not use the
High Altitude Mode
if your altitude is between 0 m and 1500 m and ambient
temperature is between 0°C and 35°C. The projector will be over cooled, if you turn the mode on
under such a condition.
Password
For security purposes and to prevent unauthorized use, you may set up password
security for the projector. See
Utilizing the password function
for details.
•
Change Password
You will be asked to enter the current password before changing to a new one.
•
Power On Lock
Limits use of the projector to only those who know the correct password.
Key Lock
With the control keys on the projector locked, you can prevent your projector
settings from being changed accidentally (by children, for example).
When you select On to enable this function, no control keys on the projector will
function, except
POWER.
To unlock the keys, press and hold
on the projector for 3 seconds.