Sony BVP-900P Maintenance Manual page 23

AU-250 board
A B
S1
S400
S401
S500
S501
S351
Ref. No. Switch name
S1 INCOM 1/2 MIC UNBALANCE
switch
S150, S151 INCOM 1/PGM MIX switch
S152, S153 INCOM 2/PGM MIX switch
INCOM/PGM MIX mode select switches
INCOM1 S150 S151
INCOM2 S152 S153
IND IND
(Factory setting)
MIX IND
MIX MIX
BVP-900 P1
C D E F G H J
S350
AU-250 BOARD (A SIDE)
Description
When a headset with a dynamic microphone OFF
is connected to the INTERCOM 1 or 2
connector and the connection is unbalanced,
the intercom line may hum. Turn on to reduce
the hum.
Selects how the INCOM and PGM of the
INCOM 1 connector are output. (See the table below)
Selects how the INCOM and PGM of the
INCOM 2 connector are output. (See the table below)
Description
INCOM
PGM
INCOM
PGM
INCOM
PGM
K L M N P R S
1
2
S352 3
4
5
S900 S901
6
S902
7
8
S151 S150
9
10
S153 S152
11
12
INCOM and PGM are output
INCOM
independently.
OUT
PGM
OUT
Mixed signal of INCOM and
PGM is output as INCOM
INCOM
OUT and PGM outputs.
INCOM level control knob
PGM
adjusts INCOM audio level
OUT
and PGM level control knob
adjusts the PGM audio level.
Mixed signal of INCOM and
PGM is output as INCOM
and PGM outputs.
INCOM
OUT INCOM level control knob
adjusts mixed signal level of
PGM
the INCOM and PGM, and
OUT
PGM level control knob
adjusts the balance between
them.
1-8. Function of Internal Switches
Factory setting
1-17 (E)