www.szsinocam.com Professional Mobile DVR
22
a) Audio function setup in “OFF” mode in system
；
b) Use wrong input cables
；
Alarm Relative Issues
1)
Q:
Alarm input invalid
？
A:
May be the following reason to cause this problem:
a)
Alarm setup in a wrong way in syste
；
b)
Alarm input cable did not connect to the device or cable not works
；
c)
Alarm trigger signal to get an electric shock failure
；
2)
Q:
Alarm output invalid
？
A:
Possible reason is as follows
：
a)
Cable connection in a wrong way
；
b)
System setting in a wrong way, such as do not open alarm output, or level output
setting is not correct
；
Other Issues
1)
Q:
When power on, why the power light is not bright?
A:
Possible reasons are as follows
a)
Voltage range is not within 7V-42V
；
b)
Fuse in the power line has burning out
；
c)
Ignition signal has not connected
；
2)
Q:
ERR indicator keep on light
？
A:
The following errors will cause the ERR indicator keep on light
：
a)
1) SD card and HDD didn't be inserted. Or SD card and HDD have inserted without
unusual system partition, So device can‟t be identified.2
）
Disc has wrong reading and
writin
g
b)
Singlechip works unusually
3)
Q:
Why REC indicator is off or flicker?
A:
There are three states on the SD card indicator: OFF, ON and Flicker:
OFF
：
can‟t find the disk or it‟s not recording
ON
：
SD card exists, SD card is working.
