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3 7 63 1515 0
IC401 TDA7462
SE1L
1
SE1R
2
MD+
3
MD–
4
CDL+
5
CDL–
6
CDR–
7
CDR+
8
PDR
9
PDGND
10
PDL
11
SE2L
12
SE2R
13
TE
L 13942296513
CREF
14
IC702 PCM1717E-ST2
XTI
1
2
DGND
VDD
3
LRCIN
4
DIN
5
BCKIN
6
7
ZERO
D/C R
8
9
VOUTR
www
10
AGND
.
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PAUSE
DETECT
INPUT
LOUDNESS
GAIN &
CONTROL
AUTO
CIRCUIT
ZERO
COMPANDER
LOUDNESS
INPUT
CONTROL
GAIN
CIRCUIT
BEEP
DIGITAL CONTROL CIRCUIT
CLK
CONTROL
INPUT
INTERFACE
MODE
CONT
ROL
DIGITAL
FILTER
NOISE SHAPER
5LEVE DAC
5LEVEL DAC
LOWPASS FILTER
LOWPASS FILTER
CMOS
CMOS
AMP
AMP
x
ao
y
i
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8
TREBLE/
VOLUME
SOFT
BASS
CONTROL
MUTE
CONTROL
CIRCUIT
CIRCUIT
Q Q
3
6 7
1 3
IC901 BA4903
XTO
20
19
CLKO
18
ML/MUTE
17
MC/DM1
16
MD/DM0
15
RSTB
14
MODE
D/C L
13
VOUTL
12
VCC
11
u163
.
– 53 –
2 9
9 4
2 8
FRONT
VOICE BANDPASS
FADER
HP
LP
FRONT
FADER
REAR
FADER
REAR
FADER
SUBWOOFER
FADER
LP
SUBWOOFER
OUT
SDA
IIC
SCL
BUS
1 5
0 5
8
2 9
9 4
5.7V
ON
–
+
THERMAL
SHUT
DOWN
CIRCUIT ON
1
2
3
AMP
AMP
GND
ON
OUT
m
co
9 9
SE3L
28
27
SE3R
MUTE
26
25
SDA
24
SCL
23
PAUSE
22
OUT FL
21
OUT FR
20
OUT RL
19
OUT RR
18
SUBOUT+
17
SUBOUT–
2 8
9 9
VDD
16
POWER
SUPPLY
15
GND
ON
+
–
REGULATOR
VREF
OVER
VOLTAGE
PROTECT
4
5
VCC
VDD
OUT
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