33
8. General Failure Analysis Table
Problem
Description
Possible Reason
Troubleshooting
After power on, no
motion and no image
Power supply module is damaged
or power is not enough.
Change
Power
cable
is
connected
improperly
Correct
Failure occurs on engineering
line.
Eliminate
Self
test
is
exceptional, there is
image but with motor
noise “wu”
Mechanical failure
Examine and Repair
Video camera is slantwise
Put right
Power supply not enough
Change power that meets
requirements.
It
is
recommended to place the
power switch near the
Speed P/T.
Self-test is normal,
but have no image
Video
line
is
connected
mistakenly.
Correct
Video line is poor contact.
Eliminate
Video camera is damaged.
Change
Self-check
ok
but
cannot control
Control
signal
line
is
connected mistakenly.
Correct
Position of Speed P/T does not
match.
Reselect
Protocol setting is wrong
Reset and on power
again
Vague image
Video line is poor contact.
Eliminate
Power supply not enough
Change
P/T
is
not
controllable.
Too much load or communication
distance is too long.
Confirm
terminal
resistance
Add
code
distributor
