Specifications
Chapter 3 Installation 13
SYSTEM CHECKOUT
Multiplexer system operation can be checked immediately after
installation with the multiplexer in the factory default state. While
the multiplexer itself requires no adjustment, system components
such as the monitor, cameras and video recorder should be checked
for proper operation and adjustment. The system checkout pro-
cedure involves three steps: monitor calibration, camera check,
and video recorder check. At least two video cameras are required
to check system operation.
Refer to Figure 1 Basic Multiplexer System. Make certain that
all required connections are in place. Apply power to all system
equipment.
Monitor Calibration
This process involves adjusting monitor display brightness, con-
trast, hue and saturation based on the standard color bar pattern
generated by the multiplexer. The procedure is as follows.
1. Press Function+Zoom. The first setup menu appears over
internally generated color bars (gray bars on B&W units).
2. Turn off any automatic color control features on the monitor
that might interfere with manual adjustment (except B&W
units).
3. Turn the monitors color level (saturation) control all the way
down. The display is now black and white.
4. Adjust the monitors contrast and brightness controls so that
the bar pattern starts with white, darkens evenly through
shades of gray and ends with black.
5. Turn the monitors color level control to its midpoint (except
B&W units).
6. Adjust the monitors tint (hue) control until the colors are
correct. The correct sequence of colors from left to right is
white, yellow, cyan, green, magenta, red, blue and black.
7. Press Function+Zoom to exit the setup menu system.
The main monitor is now correctly calibrated to the output of the
multiplexer. To calibrate the call monitor, temporarily connect
its video cable to the main mon output and perform monitor
calibration again. While monitor adjustments can be changed to
suit the viewer, the above procedure should be performed before
attempting to adjust cameras or working on display or video qual-
ity problems.