Sony CA-755 Maintenance Manual page 17

S4 (S4-1 to S4-4) and S6 : INCOM CONTROL MODE select switches
( ) in parentheses : Factory settings
S4-1 S4-2 S4-3 S4-4
(OFF) (OFF) (OFF) (OFF) (OFF)
OFF ON OFF OFF
OFF OFF ON OFF
OFF OFF OFF ON
OFF ON ON OFF
ON OFF OFF OFF
OFF OFF OFF OFF
ON OFF OFF OFF
S5
Selects the signal output at the headphone.
INCOM : INCOM signal
MIX : Mixed signal of INCOM and PGM
PGM : PGM signal
Factory setting : MIX
CA-755/755P
S6 Block Diagrams
INCOM
PGM
OFF
INCOM
PGM
OFF
INCOM
PGM
OFF
INCOM
(PGM)
OFF
INCOM
PGM
OFF
INCOM
PGM
PGM
INCOM
LEVEL
LEVEL
ON
INCOM
PGM
ON
INCOM
PGM
Descriptions
For normal use
INCOM
OUT
INCOM LEVEL
PGM
OUT
PGM LEVEL
PGM signal is added to INCOM signal
output.
INCOM signal is added to PGM signal
output.
INCOM signal is output as both INCOM and
PGM outputs.
Mixed signal of INCOM and PGM is output
as both INCOM and PGM outputs.
INCOM LEVEL control adjusts audio levels
of INCOM and PGM and PGM LEVEL
control adjusts a mixed ratio between them.
Mixed signal of INCOM and PGM is output
as both INCOM and PGM outputs.
Mixed signal of INCOM and PGM is output
as both INCOM and PGM outputs.
INCOM LEVEL control adjusts audio levels
of INCOM and PGM and PGM LEVEL
control adjusts a mixed ratio between them.
1-4. Internal Switch Settings
1-7 (E)