Polycom VSX 3000 Administrator's Manual page 159

Symptom
Cannot display content on
the main monitor.
Call participants cannot see
or hear what is being
played on the VCR or DVD.
Picture freezes frequently
or becomes blocky during
an IP call.
Picture freezes frequently
during an ISDN call.
Picture is slow or jerky.
The video image appears to
be tilted.
Problem
The system was changed
from using a PAL/NTSC
main monitor and a VGA
secondary monitor to using
a single PAL/NTSC monitor
and no second monitor.
The VCR or DVD is not
selected.
The VCR or DVD is not set
up correctly.
There is too much traffic on
the LAN. Check the error
count on the Call Statistics
screen.
The network is
experiencing packet loss.
Too many network line
transmission errors. Check
the error count on the
Diagnostics > Call
Statistics screen to verify
this.
Network interface cable or
cables may be bad.
The system is receiving
video that includes a large
amount of motion.
Too many network line
transmission errors. Check
the error count on the
Diagnostics > Call
Statistics screen to verify
this.
Only one 64 kbps channel
is connecting in your call.
VSX 5000: The camera is
not pointed correctly.
Corrective action
Set content for VGA Out and then set content for
Monitor 1.
Select the VCR (Camera 3):
Press Camera, then press 3.
Check that the VCR or DVD is connected according
to the instructions in the section
VCR/DVD on page 5-1.
Refer to the manufacturer's instructions to set up the
VCR or DVD correctly.
Go to Admin Settings > Network > IP > Quality of
Service and enable dynamic bandwidth.
Go to Admin Settings > Network > IP > Quality of
Service and specify a smaller value for Maximum
Transmission Unit Size.
Try the call again.
Replace the cable or cables.
A background with less motion provides a better,
smoother video picture.
Try the call again, possibly at a lower network speed.
Check the ISDN number of the far site. Ask the far
site to call your site.
Check that the camera is pointed perpendicular to
the subject.
Troubleshooting
Connecting
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