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A
B
AV-S70/NX-SW70
AV-S70 SCHEMATIC DIAGRAM (4/4)
1
Q Q
3 7 6 3 1 5 1 5 0
0
0
0
2
0
–14.8
0
0
14.6
3
P-36
4
0
–11.5
H-3
0
–11.5
0
T E
L
1 3 9 4 2 2 9 6 5 1 3
0
5
0
0
0
–11.5
0
0
6
µ
µ
IC601~603, 605 :
PC4570G2
IC604 :
PD4066BF
Dual OP Amp
Quad Analog Switch/Multiplexer
OUT
1
+V
IN/OUT
1
1
8
CC
SIG/A
–IN
1
2
7
OUT
2
+
–
+
–
7
+IN
3
6
–IN
OUT/IN
2
1
2
–V
4
5
+IN
OUT/IN
3
CC
2
SIG/B
IN/OUT
4
CONT B
5
CONT C
6
V
SS 7
w w w
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
8
1SS133
2SC1740S (Q, R, S)
2SC2878 (A, B)
LM1875T
MTZJ9.1B
DTC144ESA
Anode
E
B
C
B
Cathode
C
E
39
C
D
E
8.7
8.7
–8.8
–8.8
4.8
8.7
0
0
0
0
–14.8
0
0
14.5
14.5
0
0
0
–14.8
0
0.6
0
P-36
J-4
14
V
DD
SW
13
CONT A
A
SW
12
CONT D
D
11
IN/OUT
SIG/D
SW
10
OUT/IN
B
9
OUT/IN
SW
SIG/C
C
8
IN/OUT
x
a o
µPC4570G2
µPD4066BF
TRUBASS
.
i
5
8
5
8
14
1
7
24
4
1
1
1
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F
G
0
0
0
0
–14.9
0
0
14.6
SYSTEM
CONNECTOR
IC503 : TRUBASS
Q
Q
3
Bass Enhancement Processor
7
L IN
1
SUBWOOFER
ENHANCEMENT
R IN
2
3
4
5
u 1 6 3
y
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H
I
2
4
8
9
MAIN L
0
0
0
28.7
0
0
–29.0
0
0
–11.5
0
–29.0
0
0
–11.5
0
28.7
MUTING
POWER AMP
IC501, 502 : LM1875T
6
3
1
5
1
Power Amp
5
0
8
21
22
23
24
+
–
19
L OUT
BASS
DYNAMIC
1
2
3
4
5
PROCESSING
R OUT
20
6
7
8
9
10 11 12
13 14
16 17
15 18
m
c o
.
J
K
2
9
8
9
9
R533
–3.1
30k
MAIN L
0
4.8
0
4.8
0
0
0
P-36
C-5
0
0
26.7
0
0.7
0
9
2
4
9
8
2
9
9
Z
Z
P-36
250V 1.0A
D-5
CN110
Z
Z
POWER
P-36
D-7
Z
CN112
P-36
D-6
Z
CN111
P-38
G-2
CB701
* All voltage are measured with a 10MΩ/V DC electric volt meter.
* Components having special characteristics are marked Z and
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
L
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