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IC Block Diagrams
IC001 < Audio AMP. > LA4270-E
LA4270
300
Ripple
Filter
1
2
3
4
IC1001 < AV Selector > MM1313BD
41
MTV-V
V1-V
1
V2-V
7
V3-V
13
STV-V
27
V1-Y
3
V2-Y
9
0dB
5
V1-C
11
V2-C
42
MTV-L
V1-L
2
8
V2-L
14
V3-L
25
STV-L
40
MTV-R
V1-R
4
10
V2-R
16
V3-R
STV-R
26
36
BIAS
SCL
19
20
SDA
30K
-
CH1
+
Thermal
Shutdown
Over
Voltage
+
CH2
-
30K
Vcc
300
5
6
7
8
9
V
cc
38
6dB
6dB
6dB
0dB
-6dB
6dB
-6dB
-6dB
BIAS
2
I
C LOGIC
30
GND
IC501 < Vertical Output > LA78041-E
10
1
2
34 V
1
OUT
COMB
23
V
2
OUT
Y
1
IN
31
37
Y
1
OUT
C
1
IN
29
39 C
1
OUT
33
L
1
OUT
22
L
2
OUT
32 R
1
OUT
24 R
R
2
2
OUT
OUT
6
S1
12
S2
21
ADDRESS
28
Mute
-6-
Thermal
Protection
-
AMP
+
Pump
Up
3
4
5
6
7
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