24
Chapter Six Trouble Shooting of Dome Device
S.N.
Problem
Description
Possible Reason
Troubleshooting
Remarks
Power cable is connected
improperly.
Check if the power cable is
connected to power of AC24V
Fault of power PCB of dome
device
Change the power PCB
slip
ring
power
wires
disconnected
Change slip ring
1
After power on,
no motion and no
image.
Fault of main control board
Change main control board
Please follow the above
basic
system
wiring
strictly
Character monitor switch is
off
Switch on the character monitor
according to the menu instruction
2
After power on,
the dome device
rotate
normally,
but no character
nor image display
Improper
connection
between camera and dome
device
Replace a FFC cable or a camera
About 45 second after
the dome device is
power on.
wrong operation
CALL+90+ENTER open
3
After self-test of
the
dome
device, menu
cannot
be
displayed
Fault of OSD control board
Change OSD board
After self-test, the menu
can only be displayed
when there is image
display of the dome
device
Interfered
by
exterior
electronic signal (noise) or
the camera is directed to
the monitor screen
Grounding the dome device or shut
off the surrounding big electronic
devices(electric,
HF,
signal
generating) equipment, or rotate
the camera
4
Distorted
character
or
image
System wrong function
Restart the dome device
Shielded cable should
be adopted for video
cable
5
After power on,
no self-test and
motor is locked
The system setting is start
self-test
after
receiving
command and you can see
the video on the screen
Connect the controller and set
correct transmission protocol and
baud rate as well as dome device
address
There
is
character
display
in
normal
circumstance
OSD board is not properly
connected with main control
board or the photoelectric
switch is broken
fix OSD board again, if the problem
still exits, then replace the OSD
board
6
Cannot stop pan
rotation
(rotate
and
stop
alternatively)
Pan interupter is not in
due position
Adjust the pan interupter
Pan interupter should
be at 2/3 of the central
slot within photoelectric
switch
7
After
normal
working, it will
rotate one circle
when
being
controlled
The system is checking the
data again
It is normal event
If
this
happens
frequently,
please
adjust
the
pan
interupter or check if
the connection is too
tight.
Содержание DM587
Страница 12: ...11...