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Appendix 6: Troubleshooting
Problem
Possible Cause
Solution
No action, no
video after dome is
powered up
1.
If the red LED on the power board in the
housing is NOT lit, causes may be:
- The 24V AC power supply is not connected
to the port of the power board or the
contact is not good
- The municipal power supply has been cut off
or the 24V AC transformer is in malfunction
2.
If the red LED on the power board in the
housing IS lit, causes may be:
- Fuse is bad or it is not installed
- The MOLEX is not connected to RJ45 or the
connection is not good in contact; the power
PCB is not connected to receiver PCB or the
connection is not good in contact
- 24V AC transformer outputs voltage is too
low
- The power PCB is faulty
1.
Check if the power supply is connected, or
confirm if the plug contacts well
2.
Check to see if the municipal power supply
has been cut off. Check to see if the 24V AC
transformer is OK.
- Replace the fuse. The fuse is a 4-ampere one
- Check and confirm all the wire connections
are correct and have good contact
- Use a voltmeter to check the voltage load to
the dome. Make sure the voltage is above
16V.
- Please contact factory or distributor for
replacement of power PCB
The dome is
uncontrollable
1.
The dome DIP switch setting is incorrect
2.
The two poles of the control cables are
connected wrongly or the connection is open
1.
Reset the DIP switches according to the DIP
switch chart
2.
Check the control cables and confirm the
connection is correct and firmly connected
Fan does not
function
1.
Wire connection of fan is faulty or not
connected properly
1.
Connect the fan wire. If the fan still does not
function, contact the distributor or factory
Vague image
1.
Manual focus has been set
2.
Unclean dome cover
1.
Operate dome or call any preset
2.
Clean the dome cover
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