Polycom HDX Series Administrator's Manual page 140

Administrator's Guide for Polycom HDX Systems
Symptom
When using multiple
monitors, you don't see
what you expect on each
monitor.
When using two monitors,
the same picture is seen on
the first and second
monitor.
The people at the far site
cannot see you.
Video is in black and white.
VCR/DVD records in black
and white.
The people at your site
show up in silhouette in the
PIP.
Video from your site is too
dark or too light in the PIP.
The system does not
receive closed captions
correctly.
12 - 10
Problem
Monitors are not enabled.
Monitors are not connected
to the correct video outputs.
You are the only participant
in a call placed through an
external MCU.
The system is performing a
Near End Loop test.
You have selected a
camera that is not
connected.
The monitor is connected
using the composite
monitor connector, but it is
configured as S-Video.
The monitor cable is not
connected properly.
The monitor cable is bad.
VCR video format setting
does not match the VCR
connection.
The camera is pointing
toward a source of bright
light, such as a window.
Lighting at your site has
changed within the past few
minutes.
During calls, the camera
adjusts for the lighting at
five-minute intervals.
The modem is not
connected correctly, or is
not configured correctly.
Corrective action
Enable the connected monitors on the System >
Admin Settings > Monitors > Monitors screen.
Verify that the monitors are connected correctly
according to the setup sheet you received with the
system.
MCUs generally loop the first participant back to
itself. Wait for others to join the conference.
Press Select on the remote to end the test.
Select the main camera.
Go to System > Admin Settings > Monitors >
Monitors and change the setting to Composite.
Verify that the monitor is connected correctly
according to the manufacturer's instructions and the
setup sheet you received with the system.
Replace the cable.
Go to System > Admin Settings > Monitors >
Monitors and change the VCR setting.
If it is practical to do so, have the call participants sit
in a location where there is no light source behind
them.
Otherwise, go to System > Admin Settings >
Cameras and select Backlight Compensation.
Pan the camera. It adjusts for the lighting whenever it
is moved.
Verify that the modem is connected correctly
according to the manufacturer's instructions and the
setup sheet you received with the system.
Go to Admin Settings > General Settings > Serial
Port and verify that RS-232 Mode is set to Closed
Caption.
Verify that the modem is configured for 8 bits, no
parity.