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Maintenance Guide

TE30, TE40, TE50, TE60, and TX50 Videoconferencing Endpoint V600R006C10

This document guides the operator to maintain the device
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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Video

Video

Table 8-7 lists the troubleshooting methods for video problems.

Table 8-7 Methods for troubleshooting video problems

Problem

Possible Cause

Solution

While the endpoint is powered on and not in a conference, the display device does not display the user interface or the video of your site.

The display device is powered off.

Power on the display device.

The video channel of the display device is incorrect.

Use the remote control to select the correct video channel.

The video settings of the endpoint or display device are incorrect. For example, the brightness is set to 0.

Retain the default values for the video parameters on the endpoint and display device.

The video cable connection is not secure.

Secure the video cable between the endpoint and display device.

The display device does not support video output parameters set on the endpoint.

Choose Advanced > Settings > Video > Video Output and set related parameters again.

The video output port connection on the endpoint is inconsistent with video output port parameter settings on the endpoint.

Based on the cable connection on the rear panel of the endpoint, choose Advanced > Settings > Video > Video Output and set related parameters again.

While the endpoint is powered on and not in a conference, the display device displays the video of your site but cannot display the user interface.

No display device is connected to the output port for the user interface or the connected display device is faulty.

Connect a display device to the output port for the user interface and define correct video settings for the display device.

The output port for the user interface is not set or the output port you set for the user interface is not the port connected to the display device.

Choose Advanced > Settings > Video > Common Settings > Video Output and set GUI to the output port connected to the display device.

The endpoint does not respond to remote control operations.

Telnet to the endpoint. If you fail to operate the endpoint, it is malfunctioning. In this case, restart the endpoint. If the problem persists, contact the local supplier for maintenance.

While the endpoint is in use during a conference, the display device displays the video of your site but cannot display the video of any remote site.

A local or remote loopback test is being performed.

Stop all local and remote loopback tests.

Check the call statistics. If the value of Video bandwidth[frame rate] is 0, no video is sent from remote sites.

Contact the remote site administrator to resolve this problem.

If the remote video is displayed as a blue screen, the remote site is blocking its video by sending a blue screen.

Contact the remote site administrator to resolve this problem.

The video output port is set to display the video of your site.

Set the video output port to display the video of a remote site.

The remote site disables the local video.

Ask the remote site administrator to enable the local video.

The conference is an audio conference.

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The video of your site is in black and white or flickers in black and white.

The mode of the video output port is set incorrectly.

  • Ensure that the mode of the video output port and the cable in use match each other.
  • Verify that the cable is connected correctly. Replace the cable if necessary.

While the endpoint is in use during a conference, the video of a remote site is not clear. For example, there are artifacts, frozen images, or discontinuity in the video output.

Faults occur in the local video module.

Perform a local video loopback test. If the video quality is poor, faults occur in the local video module. In this case, send the endpoint to the local supplier for maintenance.

The remote camera is set to focus on a close or distant scene. When the remote camera is not set to automatic focus and the scene captured by a remote camera changes, the captured video becomes unclear.

Set the remote camera to automatic focus.

Incorrect audio protocols are specified for conferences whose data transmission rates are lower than or equal to 256 kbit/s. To view the data transmission rate of a conference, access the Status screen. For example, if the conference rate is 256 kbit/s and the audio bandwidth is 64 kbit/s, the video bandwidth is only 196 kbit/s. In this case, the video quality is poor.

If the conference rate is lower than 256 kbit/s, set the audio protocol to G.728 to reduce the bandwidth used for audio transmission.

Only low video bandwidth is available for your site because the network is busy.

Do not initiate conferences during network busy hours.

The quality of a network connection device, such as an optical fiber transceiver, is poor. As a result, certain data is lost during transmission.

Replace the related network connection device.

Packet loss occurs on the network.

Contact the network administrator.

While the endpoint is in use during a conference, the video of a remote site can be displayed continuously but the video quality is not satisfactory.

Ask the remote site administrator to perform a local video loopback test. If the video quality is good, the video frame rate set at the remote site is too high.

Ask the administrator of the remote site to disconnect from the conference, set the video frame rate to a smaller value, and join the conference again.

Ask the remote site administrator to perform a video loopback test. The video is not clear.

Ask the remote site administrator to perform automatic camera focus adjustment.

When the endpoint is used with a Huawei camera, the video displayed at remote sites is not of HD quality.

The conference bandwidth is too low.

  • For a single-stream conference, set the conference bandwidth to 1 Mbit/s or higher.
  • For a dual-stream conference, set the conference bandwidth to 1.5 Mbit/s or higher.

The video format is too low.

Set the video format to higher or clear.

While the endpoint is not in use during a conference, the video displayed on the display device is too bright or too dark.

The video settings of the endpoint are inappropriate.

Retain the default values for the video parameters on the endpoint and display device.

The video settings of the display device are inappropriate.

Retain the default values for the video parameters on the endpoint and display device.

The camera is faulty.

Send the endpoint to the local supplier for maintenance.

While the endpoint is in use during a conference and a remote site is sharing its computer desktop, the local VGA display device cannot show the shared computer desktop.

The resolution of the remote computer exceeds the maximum resolution supported by the endpoint.

Ask the remote site administrator to change the resolution and refresh rate of the remote computer to those the endpoint supports.

The local VGA display device is not supported.

Replace the local VGA display device with a supported display device.

The presentation sharing function is not enabled at your site.

Choose Advanced > Settings > Conference > Advanced and select Presentation.

A computer is connected to the endpoint, but the local VGA display device does not show the computer desktop.

The capability of the VGA display device is limited. The resolution or refresh rate of the local SXGA output is too high to be supported by the VGA display device.

Set the resolution and refresh rate of the local SXGA output to those the VGA display device supports.

The endpoint supports only certain combinations of resolutions and refresh rates. The combination of the resolution and refresh rate set on the computer, however, is not supported by the endpoint. In this case, the local site cannot display or properly display the computer desktop.

Set the resolution and refresh rate of the computer used for the VGA input to those the endpoint supports.

The presentation source is not set as the computer desktop.

Choose Advanced > Settings > Video > Common Settings > Video Input and set Presentation Source to the input port connected to the computer desktop.

The dual-screen function is not enabled.

Choose Advanced > Settings > Video > Common Settings > Video Output and set Presentation display to Enable.

On the camera control screen, , , and arrow keys on the remote control cannot be used to control the camera.

The camera you want to control is not selected.

Access the camera control screen and select the camera you want to control.

Camera settings are incorrect, such as camera type and control serial port.

Verify the camera settings.

While the endpoint is in use during a conference and the display device displays the video of a remote site, after you press , , or arrow keys on the remote control, the video remains unchanged. That is, you cannot control the remote camera.

The remote control is disabled on the remote camera.

Ask the remote site administrator to enable the remote camera control at the remote site.

The camera settings are incorrect or the control cable of the camera is not securely connected.

Ask the remote site administrator to verify the camera settings or securely connect the camera control cable.

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Updated: 2019-01-31

Document ID: EDOC1000184611

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