Sony XR-3100R Service Manual page 28

IC301 CXA2509AQ-T4
30 29 28 27 26
120µ/70µ
+
–
PBFB2 31
X1
PBRIN2 32
F2
33
PBREF2
PBFIN2 34
VCT 35
VCT
PBGND
36
+
PBFIN1 37
38 F1
PBREF1
X1
PBRIN1 39
PBFB1
40
120µ/70µ
1 2 3 4 5
IC401 TDA7462D013TR
INPUT
GAIN &
SE1L 1
AUTO
SE1R 2
ZERO
MD+
3
MD– 4
5
CDL+
CDL– 6
CDR– 7
CDR+ 8
PDR 9
PDGND
10
PDL 11
SE2L 12
INPUT
SE2R 13
GAIN
CREF 14
28
25 24 23 22 21
24dB
T2
+ –
NR BIAS
MS
MODE
TAPE/AUX
TAPE EQ
FWD/RVS
VCC
MS ON/
OFF
LPF
+
DETECT
–
F3
T1
24dB
6 7 8 9 10
PAUSE
DETECT
LOUDNESS
VOLUME
CONTROL
CONTROL
CIRCUIT
CIRCUIT
COMPANDER
LOUDNESS
CONTROL
CIRCUIT
BEEP
DIGITAL CONTROL CIRCUIT
IC361 LB1638M
GND 1
2
IN1
20 MSMODE
VCC
3
19 DRSW
IN2 4
18 TAPESW
GND 5
17
INSW
16 NC
15 NC
14
MSOUT
13 DGND
12 MSTC
11 G1FB
TREBLE/
VOICE BANDPASS
SOFT
BASS
MUTE CONTROL
HP
CIRCUIT
SUBWOOFER
LP
10 N.C.
9 OUT1
8 VS
7
OUT2
6 N.C.
28
27
26
25
24
23
FRONT
22
FADER
LP
FRONT
21
FADER
REAR
20
FADER
REAR
19
FADER
FADER
18
SUBWOOFER
OUT
17
SDA
IIC
SCL
BUS
16
POWER
SUPPLY
15
SE3L
SE3R
MUTE
SDA
SCL
PAUSE
OUT FL
OUT FR
OUT RL
OUT RR
SUBOUT+
SUBOUT–
VDD
GND