Troubleshooting - JVC DOME TYPE CAMERA TK-C676 Instructions Manual

Troubleshooting

Symptom
Picture is not displayed.
Power cannot be
turned on.
Power can be turned on
but it later turns off when
the pan/tilt mechanism
starts operation.
Video sync error occurs.
Cause (Information)
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.)
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.)
When L/L is set, does the power supply frequency match
the video frequency (50 Hz)?
Is a large noise interfered with the power supply?
Remedy
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.)
Connect the cables properly.
Change power cable(s) to one(s) of lower
resistance (i.e. thicker or shorter cable(s)).
( P. 14)
Use a stable power supply with a
matching frequency.
Prevent any penetration of noise in the
power supply.
E-41