OPERATION
3-32
DLV 1280 User's Manual
at least every two weeks for the life of the projector. In addition, always adjust
flicker if you notice one or more of the following symptoms after a 15-30 minute
warm-up:
•
image “sticks”, or retains a shadow of a previous image
•
image flickers or strobes
•
narrow vertical stripes appear to crawl across the screen
Note that flicker is a critical adjustment that should be checked regularly, even if
your typical images do not obviously exhibit these symptoms.
IMPORTANT
If flicker settings remain significantly wrong for an
extended period, damage to the projector may result
and cause image sticking.
HOW TO ADJUST FLICKER:
1. Turn the projector on and allow to warm up for at least 15-30
minutes.
2. In the Service menu, select the flicker option (
). A warning
message will appear, enabling you to abort or to continue.
3. At the warning screen, select “Do Flicker Adjustments” to access
flicker controls. A full red screen will appear, likely exhibiting
current strobing or flicker.
4. With the red screen displayed, use
and
to minimize overall
flicker and to stabilize the image. Note that flicker may not
disappear entirely.
5. Repeat Steps 2 and 3 with green and blue flicker.
6. Press
when each of the three colors are as stable as possible.
You will find that all three flicker values should range from approximately 230-
330 or from approximately 1700-2100, depending on the version of panel
hardware present in your projector.
NOTES: 1) Always make sure to wait 15-30 minutes before adjusting any flicker.
If adjusted prematurely, image quality will worsen during warm up. 2) It may
not be possible to completely eliminate flicker from all areas of the red, green
and blue screens — chose the setting that produces the most stable image
overall. 3) On-line help is not visible when adjusting red or blue flicker.
When working with multiple projectors, you may want to use the
RS-232 IN/OUT
ports to chain the projectors together in a network that you can control from
either a keypad or a computer/controller (see 2.9, Serial Port Connections). Or you
may prefer that each projector stands alone, in which case you will probably use
a single IR remote keypad. In either case, you can switch back and forth between
broadcasting to all projectors or controlling each projector individually.
First, assign a unique projector number to each projector present — this number
is required in order to gain the exclusive attention of an individual projector
using a remote keypad. To assign a projector number:
3.8
Using Multiple
Projectors
Assigning a
'
"Projector#"
