Sony HDC-900 Installation And Maintenance Manual page 27

1-5. Switch Setting on the Boards
AU-271 board
INCOM 1 switch
MIC GAIN
INCOM 1 MIC GAIN switch
INCOM 2 switch
MIC GAIN
INCOM 2 MIC GAIN switch
MIC
MONITOR
MIC MONITOR switch
Ref. No. Name
S1-1 *1 TRACKER INCOM2 ON/OFF
S1-2 *2 Not used
S2-1 *2 PGM1 INCOM1 RECEIVE
MIX ON/OFF
S2-2 PGM2 INCOM2 RECEIVE
MIX ON/OFF
S101-1 PGM1 MUTE ON/OFF
S101-2 PGM2 MUTE ON/OFF
S101-3 INCOM1 MUTE ON/OFF
S101-4 INCOM2 MUTE ON/OFF
S102-1 PGM1 MUTE ON/OFF
S102-2 PGM2 MUTE ON/OFF
S102-3 INCOM1 MUTE ON/OFF
S102-4 INCOM2 MUTE ON/OFF
HDC-900/950 IMM
5 4 3
AU
S104 A
CM
B
S1
DYN
INCOM 1
+
S103
0
_
C
S301
D
S304
S204
E
DYN
INCOM 2
S203
+
0
F
_
ON
S303
OFF
G
AU-271 board (A side)
Contents
Switch ON to mix the TRACKER TALK signal of the Tracker
connector to CCU INCOM2 RECEIVE OUT.
——
Switch ON to mix the PGM1 signal adjusted the sound volume by
the PGM volume control to the INCOM1 RECEIVE signal before
the sound volume adjustment.
Switch ON to mix the PGM2 signal adjusted the sound volume
by the PGM volume control to the INCOM2 RECEIVE signal before
the sound volume adjustment.
Switch OFF to output the PGM1 signal to the PGM OUT of the
INTERCOM1 connector.
Switch OFF to output the PGM2 signal to the PGM OUT of the
INTERCOM1 connector.
Switch OFF to output the INCOM1 RECEIVE signal to the PGM OUT
of the INTERCOM1 connector.
Switch OFF to output the INCOM2 RECEIVE signal to the PGM OUT
of the INTERCOM1 connector.
Switch OFF to output the PGM1 signal to the INCOM OUT of
the INTERCOM1 connector.
Switch OFF to output the PGM2 signal to the INCOM OUT of
the INTERCOM1 connector.
Switch OFF to output the INCOM1 RECEIVE signal to the INCOM
OUT of the INTERCOM1 connector.
Switch OFF to output the INCOM2 RECEIVE signal to the INCOM
OUT of the INTERCOM1 connector.
2 1
1
S101
S102
S201
S2
S202
1-5. Switch Setting on the Boards
2 3 4
S300
AU-271 board suffix -13 and higher
(B side)
Factory Setting
OFF
——
OFF
OFF
OFF
ON
OFF
ON
OFF
ON
OFF
ON
5
A
B
C
D
E
F
G
1-19 (E)