Sharp 1-BIT AMPLIFIER SM-SX1 Service Manual page 20

SM-SX1/SX1W
A
INPUT SOURCE PWB-A4
B
J101
chassis ground
LINE2/
SACD
TP1
L
1
SACD
2
TP2
(IN)
3
R
TP3
TP4
L
4
TP5
LINE1
5
(IN)
6
C
R
TP6
9 8 7
C102
0.001
chassis ground
D
J102
LINE OUT/
LINE1
TP7
L
1
LINE2
2
(IN)
TP8
3
R
TP9
TP10
L
E
4
TP11
LINEOUT 5
6
R
TP12
9 8 7
J102
chassis ground
F
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 32.
1
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L101
L124
RLY101
6
5
NC
7
8
C101
9 R101
0.001
4.7K
4
3
2
R102
L102
4.7K
1 10
Q101
2SC2412KR
R110
4.7K
R107
100K
L105
L125 RLY102
5 6
NC
7 R103
8
4.7K
9
4
3
2 R104
L106
4.7K
10
1
D102
DAN202K
R111
4.7K
R108
100K
L109
RLY103
5
6
7
NC
NC
8
9 R105
L126
4.7K
4
3
C103
2
0.001
R106
4.7K
10
1
D103
L110
DAN202K
L113
R109
L127
100K
L114
2 3
Figure 20 SCHEMATIC DIAGRAM (7/10)
– 20 –
TX101
DIGITAL
OUT
3 2 1
R116
560K
IC101
NJM4558M
MOTOR DRIVER
1
7
R112
4.7K
TP47
10 9 8 4
13 12 11 7 6 5
BI102
TO
DIGITAL PWB
9 8
CNS800 13 12 11 10 7 6 5 4
CNP800
TO DIGITAL PWB
P17 12-G
4
RX101
DIGITAL2
IN
J103
DIGITAL1
IN
3 2 1
C112
R126
ZD101
0.01
MTZJ5.1B 330
R117
75
L117
1 4
C122
2 3 0.022
C132
0.0015
chassis ground
L118
C113
0.1 10µH
C114
1/50
R127
22
C116
L119
R118
0.1
10µH
3.3K
SM-SX1
ONLY
C130
C117
0.0015
4 0.01
+ 3
-
2
5
+
-
6
8
R119
47K
C118
0.01
5 4 3 2 1
2
3 1
CNP102
CNS102
TO DIGITAL PWB
3 1
2
P17 12-D
5 6
L
7 6 5 4