37
Troubleshooting
No picture is displayed.
No power to the
camera
Connect the cables properly.
Symptom Cause (Information) Remedy
Is there a problem in the power cable(s) connecting the
camera to the power supply unit?
(If the power cable(s) are too long or of an inadequate
size, the correct voltage may not be supplied due to an
increase in cable resistance.)
Use cable(s) with low cable resistance
and of the correct cable length.
(Ensure that the voltage supplied to the
terminal board is correct during camera
operation, i.e. when the rated current is
flowing through the camera.)
Are cables connected properly to the terminal board on
the Ceiling Mount ?
Is there a problem with the power cable(s) connecting the
camera to the power supply unit?
(If the power cable(s) are too long or of an inadequate
size, the correct voltage may not be supplied due to an
increase in cable resistance during the pan/tilt operation.)
Change power cable(s) to one(s) of lower
resistance (i.e. thicker or shorter cable(s)).
(☞ P. 14)
Power to the camera but
it later turns off when the
pan/tilt mechanism
starts operation.
When L/L is set, does the power supply frequency match
the video frequency (50 Hz)?
Is thses interference to the power supply?
Use a stable power supply with a
matching frequency.
Prevent any penetration of noise into the
power supply.
Video sync error occurs.