BenQ LW855UST User Manual page 46

Fast Mode
Reset Display
Installation
Projector
Position
2D Keystone
Test Pattern
High Altitude
Mode
Baud Rate
Corner Fit
Menu operation
46
Minimizing the response time (one frame) between the source input and the
image output, this mode will enhance the controlling experience.
When using Fast Mode:
• In order to have minimized response time, Keystone, Aspect
Ratio, 2D Keystone, Corner Fit, Digital Zoom, Digital Shrink,
Digital Image Shift, Blanking, Overscan, Display Resolution should
be reset to factory preset value.
• Recommend timings are 1280x800 60Hz/120Hz. See
table" on page 54
Returns all of the adjustments you've made for the Display menu to the
factory preset values.
The projector can be installed on a ceiling or behind a screen, or with one or
more mirrors. The options are Front, Front Ceiling, Rear and Rear Celling.
Adjusts the shape of the projected image to ensure straight lines on all four
corners. See "Correcting 2D Keystone" on page 27
Adjusts the image size and focus and check that
the projected image is free from distortion.
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.
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.
• Top Left: To correct the top left corner.
• Top Right: To correct the top right corner.
• Bottom Left: To correct the bottom left corner.
• Bottom Right: To correct the bottom right corner.
for more details.
"Timing
for details.