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IC300 TDA7462D013TR
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
CREF
14
IC600 BA8270F-E2
BUS ON
BUS ON
1
SWITCH
RESET
RST
2
SWITCH
BATTERY
BATT
3
SWITCH
CLK
4
VREF
5
6
DATA
GND
7
PAUSE
DETECT
INPUT
LOUDNESS
VOLUME
GAIN &
CONTROL
CONTROL
AUTO
CIRCUIT
CIRCUIT
ZERO
COMPANDER
LOUDNESS
INPUT
CONTROL
GAIN
CIRCUIT
BEEP
DIGITAL CONTROL CIRCUIT
14
VCC
13
RST
12
BUS ON
CLK IN
11
10
BU IN
9
DATA IN
8
DATA OUT
TREBLE/
SOFT
BASS
MUTE
CONTROL
CIRCUIT
IC800 BA3918-V3
REGULATOR
OVER VOLTAGE
PROTECT
–
+
1
2 3 4
5
6
– 66 –
FRONT
VOICE BANDPASS
FADER
HP
LP
FRONT
FADER
REAR
FADER
REAR
FADER
SUBWOOFER
FADER
LP
SUBWOOFER
OUT
SDA
IIC
SCL
BUS
POWER
SUPPLY
7
8
9
10
28
SE3L
SE3R
27
26
MUTE
SDA
25
24
SCL
23
PAUSE
OUT FL
22
21
OUT FR
OUT RL
20
19
OUT RR
18
SUBOUT+
SUBOUT–
17
VDD
16
15
GND
11
12
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