11
Trouble Shooting
Problems
Possible Causes
Corrective Actions
1
No video signal;
No colour picture;
Pictures in
irregular shape.
The power rating of the
camera and /or the
transmission distance do not
match with the specifications
of the Mixer specified on Page
3 of this manual.
To select suitable MIXER model.
2
Picture brightness
too bright or too
dark.
The brightness / Sharpness
(Colour) control switches
(dip switches) are not put in
proper positions.
To set the brightness /
Sharpness (Colour) control
switches (dip switches) proper
positions (see guidance notes in
Signal Processor manual.
3
Pictures with
irregular
horizontal lines
interruption.
Either the Camera or CCTV
monitor is not grounded or
not properly grounded.
To make sure both Camera and
CCTV Monitor are properly
grounded.
4
The LED lights in
RJ45 sockets and
Power indicator
are on, but there
is no picture
shown on the
monitor screen.
The signal processor video
output cable or socket is not
properly connected to the
DVR or Monitor.
To make sure the signal
processor video output cable or
socket is not properly connected
to the DVR or Monitor.
5
There is no
movement of the
PTZ Camera when
the control keypad
is in operation.
PTZ camera doesn't receive
any control data signal from
signal processor.
Connecting channel video
loss
To check the RJ45 Pug for RS485
Data Controller is set on
Check camera wiring
6
SP no Audio
output
Mixer Microphone wiring
error or Microphone
unmatched. Or connecting
channel video loss
Check Microphone wiring or
using 2Y-Link Microphone
Check camera wiring.
7
No alarm output
Alarm input wiring incorrect
or alarm trigger signal
unmatchable.
Connecting channel video
loss
Check Alarm input wiring or
Alarm trigger normal open
Check camera wiring.
