– 53 –
SE3L
SE3R
MUTE
SDA
SCL
PAUSE
OUT FL
OUT FR
OUT RL
OUT RR
SUBOUT–
VDD
GND
CREF
SE1L
SE1R
MD+
MD–
CDL+
CDL–
CDR–
CDR+
PDR
PDGND
PDL
SE2L
SE2R
INPUT
GAIN &
AUTO
ZERO
PAUSE
DETECT
INPUT MUL
TIPLEXER &
MIXING ST
AGE
REAR SIDE
SELECTOR
FRONT SIDE
SELECTOR
LOUDNESS
CONTROL
CIRCUIT
INPUT
GAIN
BEEP
LOUDNESS
CONTROL
CIRCUIT
SOFT
MUTE
VOLUME
CONTROL
CIRCUIT
COMPANDER
TREBLE/
BASS
CONTROL
CIRCUIT
SUBWOOFER
OUT
FADER
SUBWOOFER
LP
IIC
BUS
DIGITAL CONTROL CIRCUIT
POWER
SUPPLY
FRONT
FADER
FRONT
FADER
REAR
FADER
REAR
FADER
VOICE BANDPASS
HP
LP
SDA
SCL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
REGULATOR
VREF
+
–
+
–
THERMAL
SHUT
DOWN
OVER
VOLTAGE
PROTECT
CIRCUIT ON
5
1
2
3
4
AMP
ON
AMP
OUT
GND
VCC
VDD
OUT
ON
ON
5.7V
18
19
20
17
16
15
14
8
9
10
13
12
11
1
CLK
CONTROL
CMOS
AMP
5LEVEL DAC
LOWPASS FILTER
CMOS
AMP
MODE
CONT
ROL
XTI
D/C R
VOUTR
AGND
VCC
VOUTL
D/C L
MODE
RSTB
MD/DM0
MC/DM1
ML/MUTE
CLKO
XTO
IC901 BA4903
IC401 TDA7462
IC702 PCM1717E-ST2
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