BenQ TH670s - Manual (Page 42)

Operation 42
Hiding the image
Press the ECO BLANK button from remote control to
turn off the image for a period of time with up to 70%
lamp power saving. Press any key on the projector or
remote control to restore the image.
The word "Eco Blank" appears at the screen while the
image is hidden. When this function is activated with an
audio input connected,the audio can still be heard.
‘Eco Blank: Save up 70% of your lamp power.
Time to do your part in saving the planet.’
The automatic switch to Eco Blank mode after the
projector is turned on for over three minutes without a display source, eliminating
unnecessary energy waste and prolonging the life of the projector lamp.
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 ambient 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 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.
To activate the High Altitude Mode:
1.
Open the OSD menu and make sure the Menu Type is Advanced.
2. Go to the System Setup: Advanced > High Altitude Mode and press /
to select On. A confirmation message displays..
3. Select Yes and press OK on the projector or remote control .
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.