Aiphone MA-1A - Manual (Page 6)

(
operations
)
ANSWERING AT ROOM
STATION
RELEASING DOOR LOCK
• MONITORING THE DOOR
STATION
(Pick up the handset and talk)
After 4-stroke chime sounds, picture
appears. Pick up the handset and
talk to the person in the picture.
Timer circuit shuts off the picture
and voice communication auto­
matically approximately one minute
after you pick up the handset to
answer. You can turn on the
circuit again by depressing the
monitor button.
If you do not answer when you are
called, the picture goes off approx­
imately 20 seconds after the chime
is heard.
/Depress and hold down electricé
^ door release button.__________
* While the door release button is
held down, the door release will
remain open, and a buzzing sound
is heard at the door.
* When the door release button is
released, the door is locked again.
Momentarily depress MONITOR
button.
* Picture and sound come ON by
depressing the monitor button.
You can watch and listen to the
outside through the door station
without picking up the handset.
* In the monitoring mode, the
master station cannot be heard at
the door station, and may pick
up handset for talking to door
station, if necessary.
* Master station can receive a call
from the door station while monitor­
ing.
* When you need to stop monitor­
ing, pick up the handset once
and hang up.
* Approximately one minute after
the monitor button is depressed,
the master station turns back to
standby mode automatically.
(
adjusting call tone volum
^
* Call tone volume can be adjusted to 3 levels as desired.
* Adjusts both call tone and monitor sound.
* Does not adjust call extension speaker volume.
C
ad
JUSTING CONTRA^
The picture contrast may be adjusted to 3 levels as
desired.
H IG H M E D IU M L O W
NOTES: (1) To obtain the best picture, please set contrast switch to DAY position during day time, and to NIGHT position
during the night, and then adjust brightness.
(2) Please adjust chime volume while MA-1A is in standby mode.