Shenzhen Citops System Co. Ltd. M51-DGWW-L 用户手册

6.4. Questions on Recording

1) Q: The device fails to record video?

A: This may be caused by the following causes:

a) Incorrect setting of recording mode, for instance, the alarm recording mode is

selected while there’s no alarm; the timed recording mode is selected while the
current time does not fall into the preset period;

b) Check the disk space. If the disk space is lower than 500M and the auto writing

function is disabled, the recording will be stopped;

c) The ERR indicator on the front panel is on. You may check the system

information whether the disk space is shown to be 0; check whether the disk is
inserted and whether it is formatted;

d) The recording functions of the 4 channels are disabled in the menu settings;

2) Q: No sound in the video?

A: This may be caused by the following causes:

e) Incorrect audio input connection. If the user connects line AIN1 and AIN2, the

user needs to turn on the audio switch and select LINE IN input in the Recording
Settings menu; if MICIN is connected, the user needs to turn on the audio switch
and select MIC input in the Recording Settings menu;

f) Audio output cable is not connected or incorrectly connected;

6.5. Questions on Connection

6.6. Questions on Alarm

1) Q: Invalid alarm triggering?

A: This may be caused by the following causes:

a) Incorrect settings on the Alarm Settings menu; such as failure to enable alarm

for designated alarm input and incorrect output level configuration;

b) Incorrect connection of alarm input or failure to connection alarm input;
c) Incorrect signal level of the triggering source of alarm;

2) Q: Invalid alarm output?

A: This may be caused by the following causes:

a) Incorrect connection by the user;
b) Incorrect menu settings, such as failure to enable alarm output or incorrect

output level configuration;

6.7. Others

1) Q: The power indicator is not on when the device is powered on?

A: This may be caused by the following causes:

a)  The voltage falls beyond the range between 8V and 36V;
b)  The fuse on the power input wire is burnt out;
c)  The ignition signal is not connected;