NightWatcherD1 Digital Video Recorder User Manual
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5 FAQ and maintenance
5.1 FAQ
If the problems are not listed, please contact the local service or call the HQ service. We are willing
to offer the service.
1
、
The DVR can not boot up normally.
Possible reasons are as followed:
1
The power supply is not correct.
2
Switch power supply line is not in good connection.
3
Switch power supply is damaged.
4
The program updating is wrong.
5
The hard disk is damaged or the hard disk lines are broken.
6
The front panel is damaged.
7
The main board of the DVR is damaged.
2
、
The DVR reboots automatically or stops working after boot up a few minutes.
Possible reasons are as followed:
1
The input voltage is not stable or too low.
2
The hard disk is damaged or the hard disk lines are broken.
3
The power of the switch power supply is low.
4
Frontal video signal is not stable.
5
Bad heat radiator or too much dust or bad running circumstance for the DVR.
6
The hardware of the DVR is damaged.
3
、
System can not detect hard disk.
Possible reasons are as followed:
1
The hard disk power supply line is not connected.
2
The cables of the hard disk are damaged.
3
The hard disk is damaged.
4
The SATA port of main board is damaged.
4
、
There are no video outputs in single channel, multiple channels and all channels.
