Diagnostics and General Troubleshooting
7 - 13
Display
Symptom
Problem
Corrective action
Screen is blank; start music
plays and Polycom logo
appears briefly.
The system is starting. This
is normal.
No action required.
Monitor goes blank after
displaying the splash
screen.
The system goes to “sleep”
after a period of inactivity.
The system is sleeping. The system wakes up on
any action from the remote control or on an incoming
call.
Picture is blank on the main
monitor.
The system is sleeping.
This is normal.
Pick up the remote control to wake up the system.
The monitor screen
remains blank when you
pick up the remote control.
The monitor’s power cord is
not plugged in.
Connect the monitor’s power cord and then power on
the monitor.
The monitor is powered off.
Power on the monitor.
The monitor is not
connected correctly to the
system.
Verify that the monitor is connected correctly
according to the installation procedures in the section
Connecting the Monitor
on page
2-2
.
The call connects but you
cannot see or hear people
at the far site although they
can see and hear you.
The system is configured
for use with a NAT but is
not behind a NAT.
Go to
Admin Settings > Network > IP > Firewall
and ensure that
NAT Configuration
is
Off
.
The people at the far site
cannot see you.
The privacy shutter is
closed.
Open the privacy shutter.
Video is in black and white.
The monitor cable is not
connected properly.
Verify that the monitor is connected correctly
according to the manufacturer’s instructions and the
setup sheet you received with the system.
The monitor cable is bad.
Replace the cable.
The people at your site
show up in silhouette in the
PIP.
The camera is pointing
toward a source of bright
light, such as a window.
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
.
Picture freezes frequently
or becomes blocky during
an IP call.
There is too much traffic on
the LAN. Check the error
count on the Call Statistics
screen.
Go to
Admin Settings > Network > IP > Quality of
Service
and enable dynamic bandwidth.
The network is
experiencing packet loss.
Go to
Admin Settings > Network > IP > Quality of
Service
and specify a smaller value for Maximum
Transmission Unit Size.
Summary of Contents for V500
Page 4: ...Administrator s Guide for the V500 System iv ...
Page 82: ...Administrator s Guide for the V500 System 4 32 ...
Page 100: ...Administrator s Guide for the V500 System 6 8 ...
Page 128: ...Administrator s Guide for the V500 System Appendix 10 ...
Page 136: ...Administrator s Guide for the V500 System Regulatory Notices 8 ...