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System Communications
Use an external grayscale test pattern with both dark and light gray areas.
1)
Display the image in its native resolution – select "No Resizing" by accessing
2)
Resize Preset in Size and Position menu.
Display a single color—choose from a "Color Enable" list or use the
3)
shortcuts indicated on the back of the keypad.
4)
Examine an area of darkest gray (but not black). If there is a 1-pixel wide pattern
present, adjust "Odd Pixel Adjustment" offset for the current color. Stop when the
pattern disappears and the area is smooth.
Examine an area of lightest gray (not white). If there is a 1-pixel wide pattern
5)
present, adjust "Odd Pixel Adjustment" gain for the current color. Stop when the
pattern disappears and the area is smooth.
Repeat for each color, adjusting offset then gain for each.
6)
NOTES: 1) Adjust offset before gain, since offset affects gain. 2) A value of 128
represents no change in normal odd pixel offset or gain. 3) Odd Pixel Adjustment
eliminates "1 pixel on, 1 pixel off" patterns only, not any type of larger patterns.
Reserved
No function for these options.
Service
The Service submenu offers the ability to enable or disable service passwords, and to
work with factory-defined color temperatures and other functions. This submenu is
password-protected and intended for use by qualified service technicians only.
'
Use the checkboxes and pull-down
lists in the Communications
submenu to alter the methods or
types of communication to and
from one or more projectors.
NOTE: Changes made to the
Communications submenu will be
saved upon exit of the menu.
Baud Rate
The baud rate setting determines the speed of communication to and
from the projector. By default, the projector baud rate is set to 19200.
Setting the correct speed is important when you are controlling the
projector with an external device such as a computer or another
projector via an RS-232 or RS-422 port. You must set the projector
baud rate at these ports to match the baud rate of the controlling
device. If you are unsure about what baud rate to choose, refer to the
documentation for the controlling device. In an existing network, if
you discover that a projector has the wrong baud rate, make sure to use the pull-down
list and select the correct baud rate with the
with
and
NOTE: 1) The baud rate setting does not affect the switcher port, which is always
9600 baud. 2) See Serial Port Connections and Appendix D for more information
about cable connections between devices.
Figure 3.22. Communications Submenu
keys.
Enter
key—do not just scroll this control
DLV1280 DX User's Manual
OPERATION
Func
key
3-41
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