NEC 128/384 Network Card User Manual


 
NDA-24230 Issue 2.0 Page 9-1
VisuaLink 128/384 User Guide Chapter 9
Chapter 9 VisuaLink Troubleshooting Guide
The following table lists many common problems and likely causes and solutions.
Table 9-1: Troubleshooting Guide
Area Condition Check Item and Countermeasures
System
Control
VL does not power on
[If the power lamp does not light]
Is the power cable of VisuaLink plugged into an AC outlet?
Make sure the outlet has power and not controlled by a switch.
Remote controller does
not operate
Replace the battery in the remote controller.
Point the remote controller toward the remote controller optical receiver
located on the front panel of the VL.
Please place the main unit so that the optical emitted from the remote
controller hits the optical receiver.
Note:
Both batteries should be replaced at the same time.
Video
No picture is displayed on
the TV monitor
[The power lamp is on, but the monitor shows no picture]
Check the power switch on the monitor.
Is the monitor set for the correct display input?
Re-check the cable between the monitor and VisuaLink. There should be
a cable from the VideoOut 1 of the VL to the VideoIn 1 of the monitor.
[The remote picture can not be displayed]
Is the remote enabled to view the image in the PIP?
Press RECEIVE key on the remote control.
Is the local end connected to the remote site?
[The local picture is not displayed at the remote monitor]
Change the monitor picture to view the transmitting picture.
1. Is the camera powered on?
2. Is the camera cable correctly?
3. Is the correct camera image being sent.?
4. While viewing the remote room can the PIP be displayed?
5. Is there a connection to the remote site?
Press MAIN CAM key and CAM 2 key.
Camera does not move
[The local camera does not move]
Is the control set for local control? Press the STATUS button on the
remote controller to identify what type of control has been acquired.
Is the camera control cable connected?
Is the camera powered ON. The camera must be powered ON when the
system is turned ON.
[The remote camera does not move]
Is the local end connected to the remote end?
Is the control set for remote control? Display indicates what type of
control is acquired.