Acer P1623 - Manual (Page 51)

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Closed Caption
Selects a preferred closed captioning mode from CC1, CC2,
CC3, CC4 (CC1 displays captions in the primary language in
your area). Select "Off" to turn off the captioning feature.
This function is only available when a composite video or S-
Video input signal is selected and its system format is NTSC.
VGA OUT
(Standby)
Selecting "On" enables the function. The projector can output
a VGA signal when it is in standby mode and the VGA IN (or
VGA IN 1) and VGA OUT sockets are correctly connected to the
devices.
Enabling this function slightly increases the standby
power consumption.
DC 5V Out
(Standby)
Selecting "On" enables the function. Both micro USB cable
inside the projector and the DC 5V out port/USB A port (if
available) on the back of the projector can output 5V power
when it is in standby mode.
Enabling this function slightly increases the standby
power consumption.
HDMI CEC
(Internal)
Selecting "On" allows synchronized power ON/OFF operation
between the projector and a CEC-compatible device
connected to the HDMI/MHL port of the projector.
This function is only available for the internal HDMI/
MHL port.
Reset
Press after choosing "Yes" to return the display
parameters on all menus to the factory default settings.
Security
Security
This projector provides a useful security function for the
administrator to manage the projector.
Press
to change the "Security" setting. If the security
function is enabled, your must enter "Administrator
Password" first before changing the security setting.
The factory default of "Administrator Password" is
"1234".
• Select "On" to enable the security function. You have to
enter password depending on the "Security Mode".
Please refer to "User Password" section for details.
• If "Off" is selected, you can switch on the projector
without password.