DEMODULATOR
MYW-MD/B used for VIDEO OUTPUT with Aiphone MK or MY series Video Entry Systems
The picture from the Video Door Station can be seen on standard monitors whenever the Aiphone system
is activated.
MK-1MD/A
or MY-1CD
JUMPER CLIP: (Located under rubber cover in upper
right corner of the faceplate of the MYW-MD/B)
Move to Demodulator (lower) position.
Coax output to standard video
input. (CCTV monitor, RF
modulator, or into cable
distribution network through a
multiplexer.)
* Used for video OUTPUT with
MK-1MD/A, MY-1CD, MY-CU,
MYW-P3CB, MYW-P1L, and
MYW-P3L.
DEMODULATOR
MY Video Door Station with Standard Monitor (No audio communication or PanTilt capabilities)
MK-DS or
MK-DBC
A1
A2
Polarized
DA1
DA2
DV+
DV-
+
-
MYW-MD/B*
Red
Blk
PS-18YC/A
Center cond. to DV+
Braid to DV-
MK-DBC*
A1
A2
DA1
DA2
DV+
DV-
+
-
MYW-MD/B*
+
-
PS-18C
Center cond. to DV+
Braid to DV-
IMPORTANT:
CN2 speaker microphone
connector inside Aiphone
Video door station must be
unplugged to prevent the
possibility of feedback.
To standard monitor
or monitor input on a
video switcher.
Ensure that jumper clip is
between the bottom two pins.
JUMPER CLIP: (Located under
rubber cover in upper right corner of
the faceplate of the MYW-MD/B).
Move to Demodulator (lower)
position.
TO POWER THE CAMERA:
(1) WHEN IN USE
- Install a switch or relay contact in series with the "+" terminal from the power supply (see diagram.)
- Solder a jumper between points labeled AA on the MYW-MD/B main PC board. (see illustration)
This allows the camera to be activated manually, or when the relay contact is activated from a separate
source.
(2) CONTINUALLY
- Solder a jumper between points labeled AA on the MYW-MD/B main PC board. (see illustration)
This will provide continuous power to the camera, which may cause the camera to be warm.
Note: Continually powered, the overall life of the camera will be reduced and condensation may occur.
Solder jumper
wire between
two holes in
land pattern.
1A1
1A2
+
-
*Any MK
series
camera can
be used
Standard 9"
Monitor
Pg. 3
Ensure that jumper clip is
between the bottom two pins.
A
A
Solder side
view of PC
board.
ADJUSTING THE OUTPUT SIGNAL:
Using a small screwdriver, adjust the Video Output Control to obtain the correct level for the CCTV device
you are using.
Video Output Control:
Using a small screwdriver,
adjust the Video Output
Control to obtain the correct
level for the CCTV device
you are using.
Factory
setting. Adjust
counter-clockwise
for MK series, or
as needed for for
better image.
Variable Capacitor
