Polycom V500 System Administrator's Manual page 101

Display
Symptom
Screen is blank; start music
plays and Polycom logo
appears briefly.
Monitor goes blank after
displaying the splash
screen.
Picture is blank on the main
monitor.
The monitor screen
remains blank when you
pick up the remote control.
The call connects but you
cannot see or hear people
at the far site although they
can see and hear you.
The people at the far site
cannot see you.
Video is in black and white.
The people at your site
show up in silhouette in the
PIP.
Picture freezes frequently
during an IP call.
Problem
The system is starting. This
is normal.
The system goes to "sleep"
after a period of inactivity.
The system is sleeping.
This is normal.
The monitor's power cord is
not plugged in.
The monitor is powered off.
The monitor is not
connected correctly to the
system.
The system is configured
for use with a NAT but is
not behind a NAT.
The privacy shutter is
closed.
The monitor cable is not
connected properly.
The monitor cable is bad.
The camera is pointing
toward a source of bright
light, such as a window.
There is too much traffic on
the LAN. Check the error
count on the Call Statistics
screen.
Diagnostics and General Troubleshooting
Corrective action
No action required.
The system is sleeping. The system wakes up on
any action from the remote control or on an incoming
call.
Pick up the remote control to wake up the system.
Connect the monitor's power cord and then power on
the monitor.
Power on the monitor.
Verify that the monitor is connected correctly
according to the installation procedures in the section
Connecting the Monitor on page 2-2.
Go to Admin Settings > Network > IP > Firewall
and ensure that NAT Configuration is Off.
Open the privacy shutter.
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.
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 Admin Settings > Camera and
select Backlight Compensation.
Go to Admin Settings > Network > IP > Quality of
Service and enable dynamic bandwidth.
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