Huawei 9000 VCT V100R011 Administrator's Manual page 175

HUAWEI 9000 HD Video Terminal
Administrator Guide
Table 11-8 Troubleshooting methods for the problems associated with video
Problem
The terminal is
powered on but is not
in a conference. The
display, however,
does not show the
user interface or the
local video.
The terminal is
powered on but is not
in a conference. The
user interface can be
displayed properly.
The local video,
however, is
displayed as a blue
screen.
The terminal is
powered on but is not
in a conference. The
local video can be
displayed properly.
The user interface,
however, cannot be
displayed.
After the local site
joins a conference,
the local video can
be displayed
properly but the
remote video cannot
be displayed.
Issue 09 (2012-09-03)
Possible Cause
The display is powered off.
The video channel of the
display is selected incorrectly.
The video settings of the
terminal or the display are
incorrect. For example, the
brightness is set to 0.
The video cable is not
connected securely.
The camera connected to the
interface that is set as the video
source is powered off or is in a
hibernation state.
No camera is connected to the
interface that is set as the video
source.
No display is connected to the
interface that is set as the output
interface of the user interface or
the relevant display is faulty.
The terminal system does not
respond to operations
performed with the remote
control.
Check the local and remote
loopback status. A local or
remote loopback test is being
performed.
Check the call statistics. If the
video bandwidth is 0, it
indicates that no video is sent
from the remote site.
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11 Maintenance and Troubleshooting
Solution
Power on the display.
Set the video channel correctly
using the remote control.
Set the video parameters of the
terminal and the display to default
values.
Connect the display to the terminal
using the video cable properly.
Power on or activate the camera.
Set the video source to another
interface.
Connect a display to the interface
that is set as the output interface of
the user interface, and then set
relevant video parameters
correctly.
Telnet to the terminal. If the
operations still fail on the terminal,
the terminal system is faulty.
Restart the terminal. If the problem
persists, contact the relevant
distributor for maintenance.
Stop all local and remote loopback
tests.
Contact the administrator of the
remote site to solve this problem.
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