Appendix A
Trouble Shooting
What’s wrong
How to do
1
Turn on the power switch, but the “Power” light in
front Panel does not turn on and fan does not work.
Power cable is broken.
Power supply is broken.
2
Turn on the power switch, the “Power” light in front
Panel turn to green but fan does not work.
Front panel cable is broken.
Fan is broken.
3
NetDVR continuously reboot after start up and makes
a beep sound every 10 seconds.
Upgrade the wrong firmware
Compression board has problem
Main board has problem
4
There is no image in the monitor connected with
VOUT after NetDVR is started.
The cable connected with the monitor is broken.
Rear panel of NetDVR has problem
Main board of NetDVR has problem
5
Cannot find the hard disk in reboot process.
Hard disk cable is broken.
The power cable of hard disk is not connected.
Hard disk is broken.
6
No response in HyperTerminal interface.
Baud rate is not matched.
RS-232 cable is broken.
Serial port of PC is broken.
RS-232 port of NetDVR is broken.
7
NetDVR cannot control PTZ through RS-485 port.
RS-485 cable is not connected correctly or broken.
PTZ parameters error.
RS-485 port of NetDVR is broken.
8
Client software cannot view NetDVR live image.
Network is error.
Connect wrong NetDVR (wrong IP, port number, username or password, etc.)
____________________________________________________________________________________________________________________________________________________________
NetDVR User Manual
[
87
]