Canon LV-X4U Service Manual page 15

Part 1: General Information
• Blackboard (Green)
This is the optimum mode for projecting on blackboards (green).
The intensity of the green light has been made relatively low. (Thus, the total
amount of light is also low.)
• Custom
In this mode, users can make various video adjustments, based on one of the
previous modes, to suit their personal preferences. Users can also store their
Custom Mode settings.
Keystone correction
Keystone correction is a function that digitally compensates for deformations in the
picture shape caused by the placement of the projector. This compensation is
adjustable ±20 degrees vertically.
Progressive display
This function automatically converts inputs of interlaced VCR signals into progressive
scans. Progressive display supports composite signals, S-video signals, and 480i and
575i component signals. Off, L1 (for moving images), and L2 (for still images) can be
selected.
Accommodates 2-3 pull-down (480i)
When there is 480i component signal and NTSC composite signal input, this function
automatically identifies input signals that have been converted from Cinema to
television image signals and faithfully converts them to progressive display.
To set this function, select [Film] from the menu, then select [On].
Start-up screen customization (logo, capture)
This function allows users to select a still image as the start-up screen.
Users can capture an image during projection and use that image as the start-up
screen.
Digital zoom
This function digitally scales a selected region of the picture.
The region can be projected at anywhere between 0.5 and 16 times its normal size.
Freeze
This function temporarily pauses an image projection.
No show
This function temporarily shuts off the image projection.
Presentation timer
This function displays the elapsed time as a counter on the image.
Blue back display
This function automatically displays a solid-blue background when there is no input
signal.
1-6