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IC BLOCK DIAGRAM & DESCRIPTION
IC480 LC75342M(Function Switch / Electric Volume / 2 Band
L4
11
L3
12
L2
13
L1
14
NC
15
NC
16
R1
17
R2
18
R3
19
R4
20
IC481 LA2610(Analog Surround IC)
+
+
P1
P2
P3
IN-L
LB-ADJ
IN-R
LSELO LIN LTRE
10
9
8
CONTROL
CIRCUIT
LOGIC
CIRCUIT
CONTROL
CIRCUIT
21
22
23
RSELO RIN RTRE
LEVEL
ANALOG
SURROUND
BASS
P4
P5
P6
LEBEL-ADJ
SW
GND
LBASS1 LBASS2
7
6
LVref
CCB
INTERFACE
RVref
24
25
RBASS1 RBASS2
REF
P7
P8
VREF
FS-L
FS-R
- 27 -
LOUT
5
4
3
2
1
30
29
28
27
26
ROUT
A
SW
+
B
ON/OFF
B
+
A
SW
Vcc
P9
P10
P11
VCC
OUT-R
TEST
V
SS
CE
DI
CL
V
DD
Vref
NC
P12
OUT-L
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