4
The backup equipment is not compatible.
5
The backup equipment is damaged.
17.
The keyboard cannot control the DVR.
Possible reasons are as followed:
1
The serial port of the DVR is not set correctly.
2
The address is not correct.
3
When multiple transformers are connected, the power supply
is not large enough. Please give each transformer individual
power supply.
4
The distance is too far.
18.
Alarm cannot be recessional.
Possible reasons are as followed:
1
The setting of the alarm is not correct.
2
The alarm output is turned on manually.
3
The input machine is damaged or the connections are not
correct.
4
There are some problems for specific program edition,
Please update the program.
19.
Alarm is not working.
Possible reasons are as followed:
1
The setting of the alarm is not correct.
2
The connection of the alarm is not correct.
3
The alarm input signal is not correct.
4
A alarm is connected with two loops synchronously.
20.
The remote controller is not working,
Possible reasons are as followed:
1
The remote control address is not correct.
2
The remote control distance is too far or the angle is too large.
3
The battery is used up.
4
The remote controller or the front panel of the recording
machine is damaged.
21.
The storage time is not enough.
Possible reasons are as followed:
1
Front camera quality is bad. The lens is too dirty. The camera
is in backlighting installation.
2
The hard disk capability is not enough.
3
The hard disk is damaged.
22.
The downloading files cannot play.
Possible reasons are as followed:
1
There is no media player.
2
There is no DX8.1 software or higher edition.
3
There is no DivX503Bundle.exe file to play AVI video files.
4
The DivX503Bundle.exe and ffdshow-20041012. exe
files must be installed in the windows XP system.
23.
I cannot remember the advanced code or network code in the
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