Rear Panel - Sony SSM-Q177 Service Manual

Location and Function of Controls

Rear Panel

1
CAMERA IN
(BNC) connector
CAMERA IN
CH1 CH2 CH3 CH4
ALARM
CH1 CH2 CH3 CH4 OUT TRG
GND
IN OUT
5
ALARM connector
8
Notes
• When the display shows freeze picture in Quad mode,
VCR OUT (BNC) connector will also output freeze
picture.
• When playing back on the VCR (when the INPUT select
switch is down), VCR OUT (BNC) connector outputs
nothing.
5 ALARM connector
IN ALARM mode starts by short-circuiting between
connectors of each channel. Connect to external sensors
such as infrared sensors or door sensors. Each of the
connectors corresponds to No. 1, 2, 3, and 4 of the
CAMERA IN connectors respectively. The monitor
display switches to a picture from the camera that has
sent the alarm signal.
OUT During the ALARM mode, the output voltage is
LOW (0V).
Trigger OUT When the ALARM mode is activated,
starts an output at LOW (0V) for 100ms, then switches
to HIGH (5V) output.
1-14
1 CAMERA IN (BNC) connector
To see a picture from a camera, connect to a video output
connector of a black and white video camera and keep the
INPUT select switch released on the front panel to select
CAMERA.
2 VCR IN (BNC) connector
To see a replay on the VCR, connect to a video output
connector of a VCR and press the INPUT select switch on
2
VCR IN (BNC)
the front panel to select VCR.
connector
To see a FREEZE picture (still picture), press either of the
3
VIDEO
four CHANNEL select buttons on the front panel during a
OUT (BNC)
replay. Press the button again to exit FREEZE picture.
connector
3 VIDEO OUT (BNC) connector
VCR IN VIDEO OUT
Connect to a video input connector (VCR or another
device's video input connector). Outputs a picture that is
currently on the screen selected by operating the AUTO
VCR OUT
SWITCHER / QUAD button.
4 VCR OUT (BNC) connector
Connect to a video input connector. Outputs quad display
only.
4
VCR OUT
(BNC)
connector
Other functions
If there is no incoming video signal for a channel before and
after turning on the main power, the channel will show
flashing "NO VIDEO" display on a black background.
If an incoming video signal stops after the main power is
turned on, the screen will display the last video input in a
FREEZE picture with the flashing "NO VIDEO" display.
If "SYNC: INT." is selected in CAMERA SYNC SET mode
in the On-Screen Menu system, the screen will show
flashing "NO VIDEO" display on a black background.
After a while, the display stops flashing.
To exit FREEZE picture, reestablish signal input or turn off
the monitor and restart.
9
SSM-Q177/Q177CE