Sony SX-M700 Service Manual page 53

SX-M100
The audio block of the SX-M100 is equivalent to that of
the SX-M700 except that the circuit for the IPU
(interpreter's unit) is eliminated.
(See SX-M100 block diagram.)
The audio block of the SX-M100 receives the following
signals:
. D/CU 1 MIC IN
. D/CU 2 MIC IN
. D/CU 3 MIC IN
. D/CU 4 MIC IN
. EXT IN 1 MIC/LINE
. EXT IN 2 MIC/LINE
. TELEPHONE COUPLER IN
. Input Audio Signal from Expansion Unit SX-E120
(via expansion board SXA-120)
EXT IN
TEL COUPLER IN
DCU MIC IN (1-4)
EXP. UNIT IN
SX-E120
The audio block of the SX-E120 has the following basic
functions.
1. Receiving the audio signal from the chairman and
delegate units through the four D/CUs 5 to 8, the audio
block outputs these signals to the control units (having
the built-in expansion board SXA-120) via the limiter
and mixer.
2. Receiving the translated languages (CH-1 to CH-6)
from the control units (having the built-in expansion
board SXA-120), it outputs these signals to the
chairman and delegates unit through the four D/CUs 5
to 8.
3-4(E)
ORG
LIMITTER B. P. F.
MIXER
SX-M100 block diagram
These input signals are passed through the limiter and
mixer, amplitude-adjusted by the MASTER volume
control, passed through a band-pass filter and feed the
following nine output terminals:
. D/CU 1
. D/CU 2
. D/CU 3
. D/CU 4
. LINE OUT 1
. LINE OUT 2
. TELEPHONE COUPLER OUT
. PHONES OUT
. ORG Output to Expansion Unit SX-E120
(via expansion board SXA-120)
MASTER LEVEL
CONTROL
ORG OUT
D/CU 1 OUT
D/CU 2 OUT
D/CU 3 OUT
D/CU 4 OUT
LINE OUT
TEL COUPLER OUT
PHONES OUT
SX-M700