Acer X1230 - Manual (Page 33)

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Note: "H. Position", "V. Position", "Frequency" and "Tracking" functions
are not supported under video mode.
Note: "Sharpness" function is not supported under computer mode.
Setting
Menu Location Chooses the OSD menu location on the display screen.
Source Lock
When this function is turned off, the projector will search for
other signals if the current input signal is lost. When this
function is turned on, it will lock the current source channel
before you press "SOURCE" on the control panel or remote
control for next channel.
Closed Caption
Closed Caption Enable
Select "On" to enable the function when the selected input
signal carries closed captions.
• Captions: An onscreen display of the dialogue, narration,
and sound effects of TV programs and videos that are
closed captioned (usually marked as "CC" in TV listings).
Set your screen aspect ratio to 4:3. The function is not
available when the aspect ratio is "16:9" or "Auto".
This function is only available when a composite video
or S-Video input signal is selected and its system format
is NTSC.
Caption Version
Selects a preferred closed captioning mode. To view captions,
select CC1, CC2, CC3 or CC4 (CC1 displays captions in the
primary language in your area).