YES
Is the unit powered ON?
NO
START
Advance preparation:
Connect the Main Monitor Station to
non-defective Door Station and
Extension Monitor.
Can the communication
be made between the Door Station
and the Main Monitor Station?
Register a normal Extension Monitor
with the Main Monitor Station.
Cut off the communication.
Reduce the number of the Extension Monitor.
Erase the recorded image
from the Main Monitor Station,
and then turn the power OFF.
Go to "Defect of the Main Monitor Station power supply "(*1).
*Make sure the power is ON by pressing the talk key, etc.
END
YES
Go to "Defect of the Main Monitor Station video recording" (*3).
(Refer to "Operation Check of the Door Station"(*5).)
NO
Go to "Defect of the Communication between the Main Monitor
Station and the Door Station"(*4).
Can the Door Station
record and play the image?
YES
NO
Can the communication
be made?
Cut off the communication.
YES
Go to "Defect of the Extension Monitor video recording" (*6).
NO
Go to "Defect of Communication Between the Main Monitor
Station and the Extension Monitor" (*2)
Can the video
recording/playing be done?
YES
NO
A
Up to 3 Extension Monitor are allowed to be registered.
*