User manual

14
The DVR cannot boot up normally.
Possible reasons are as follows:
1 The power supply is not correctly
connected.
2 The rear power switch is in the off
position
3 The power supply is damaged
4 The hard disk is damaged .
5 The front panel is damaged.
6 The main board of the DVR is damaged.
The DVR reboots automatically or stops
working after boot up a few minutes.
Possible reasons are as follows:
1 The input voltage is not stable or too low.
2 The hard disk is damaged.
3 The DVR is subject to poor environmental
conditions . Heat , dust , moisture etc
4 The hardware of the DVR is damaged.
System cannot detect hard disk.
Possible reasons are as follows
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.
5 Hard disk cables not fully inserted
There are no video outputs in single
channel, multiple channels and all
channels.
Possible reasons are as follows
1 The image brightness is set to zero.
2 There is no video input signal or the signal
is too weak.
3 The channel protection or the screen
protection is set.
4 The hardware of the DVR is damaged
5 No cameras connected
6 No power to connected cameras
Real-time image problems such as the
image color or the brightness distortion.
Possible reasons are as follows
1 The PAL / NTSC settings are not correct
for region ( Pal to be used in Europe )
2 The signal from the camera is too weak
due to excess distance between camera
and DVR.
3 The color and brightness setting of the
DVR is wrong.
I cannot find the video files in local
playback mode.
Possible reasons are as followed:
1 The data line of the hard disk is damaged
2 Recording did not take place in the
specified time range.
3 The hard disk is damaged.
4 The video files to look up are covered.
5 The recording is not on.
6 Harddrive has been overwritten
The local video is not clear.
Possible reasons are as follows
1 The image quality is too bad.
2 The reading program is wrong. Reboot up
the DVR.
3 The data line of the hard disk is
damaged.
4 The hard disk is damaged.
5 The hardware of the DVR is damaged.
6 DVR connected via video output not VGA
There is no audio signal in the
surveillance window.
Possible reasons are as follows
1 There is no audio device connected.
2 The audio lines are damaged.
3 The hardware of the DVR is damaged.
Troubleshooting
F193 Digiview4i Manual:Layout 2 26/7/11 07:44 Page 14