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7 FAQ and maintenance
7-1 FAQ
If the problems are not listed, please contact the local service or call the Toll Free service. We are
willing to offer the service.
1.
Possible reasons are as follows:
i.
ii.
iii.
iv.
v.
vi.
vii.
2.
Possible reasons are as follows:
i.
ii.
iii.
iv.
v.
vi.
3.
Possible reasons are as follows:
i.
ii.
The DVR cannot boot up normally.
The power supply is not correct.
Switch power supply line is not connected properly.
Switch power supply is damaged.
The program updating is wrong.
The hard disk is damaged or the hard disk lines are broken.
The front panel is damaged.
The main board of the DVR is damaged.
The DVR reboots automatically or stops working after boot up.
The input voltage is not stable or too low.
The hard disk is damaged or the hard disk lines are broken.
The power of the switch power supply is low.
Frontal video signal is not stable.
Bad heat radiator or too much dust or bad running circumstance for
the DVR.
The hardware of the DVR is damaged.
System cannot detect hard disk.
The hard disk power supply line is not connected.
The cables of the hard disk are damaged.
56
DVR User M anual
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