OPERATION
3-2
DLV 1280 User's Manual
Main components for operating the projector are shown in Figure 3-1. Notice
that only zoom, focus and lens offsets are mechanically adjusted at the projector.
Most other DLV 1280 functions and adjustments are entered through simple
keypad commands that either control the projector directly or which display a
system of easy-to-use menus. In addition, you can define up to ninety-nine
different source setups called channels for storage in the projector's internal
memory, with each channel retaining its own specific adjustment levels and
settings. Projector components are described below:
The infrared (IR) sensors on the front and rear of DLV 1280 receive infrared
signals from the IR keypad for remote control of the projector. Make sure that
these sensors are not blocked. Note: DLV 1280 CR has front sensor only.
A zoom lens barrel rotates to change the size of the image at the current throw
distance (projector-to-screen distance). Minimum and maximum image sizes
depend on the specific zoom lens installed (see Section 5, Specifications).
The lens barrel rotates to adjust the sharpness of the image at the current throw
distance.
The two lens offset adjustment knobs adjust the vertical and horizontal position
of the image in relation to the projector lens. See Section 2, Installation and
Setup for details.
Accepts Composite video or S-Video signals from devices such as VCRs.
Accepts RGB and sync signals from devices such as computers, looping through
to another display if desired.
Accepts PC analog signals from PCs and (with adapter) Macs, looping through
to another display if desired.
“Dat Out” loops a currently selected source input through to another destination
if desired.
Allows one or more projectors to be remotely controlled by a computer or
controller, and provides a communications connection for Marquee and third-
party signal switchers.
Accepts only a AC line cord (power cord) as supplied with projector. The
projector requires AC power of 90 to 264 VAC, 50 to 60 Hz @ 9 amps.
WARNING:
Do not attempt operation if the AC supply is not
within the specified voltage and power range.
Two LEDs (light emitting diodes) located to the right of the “
DAT OUT
connector indicate "Status" (top) and "Power" (bottom). During normal
operation, the "Power" light is steady green and the "Status" light flashes green
each time a key is pressed or when the projector receives a serial command. Use
the following guide for interpreting the status LEDs.
Infrared Sensors
'
Zoom
'
Focus
'
Lens Offset
'
Composite or S-Video Input
'
RGB Input
'
(with loop-through)
PC Analog Input
'
(with loop-through)
Data Output
'
(loop-through)
RS-232 Interface
'
(with loop-through)
AC Line Input
'
Status LEDs
'
