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Sharp SM-SX1 Service Manual page 19

1-bit amplifier
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ATION
LSI
NC
12
DX
11
CXA1
11.2896MHz
XO
10
CA8
18P
XI
9
CA10
CA9
DGND_AD
0.22
18P
+B
DDX
8
+B
7
DR
CA12
0.22
DGND_AD
R(+)
6
R(-)
5
DD
4
DGND_AD
L(-)
3
L(+)
2
+B
DDL
1
DGND_AD
CA11
0.22
-B
-B
+B
7:FET DRIVER
7
DA12
SM1XP2
NC
1
-B
2
A4
3
12B3
ZDA2
4
HZU12B3
5
NC
6
+B
7
ZDA8
8
HZU12B3
-B
9
10
ZDA6
11
HZU12B3
12
NC
DA16
SM1XP2
QA10
DA14
MP4712
M1XP2
+B
3
XP2
DA15
NC
SM1XP2
1
-B
2
DA7
3
U12B3
ZDA5
4
HZU12B3
5
NC
6
+B
7
ZDA3
8
HZU12B3
-B
9
10
ZDA1
11
HZU12B3
DA11
12
NC
SM1XP2
QA9
MP4712
• The numbers
1
to
8
7
ICA2
74AC00F
+B
NAND GATE
+B
1
VCC
14
+B
2
13
+B
3
12
4
11
+B
5
10
+B
6
9
GND
8
7
GND_SW
1
VCC
14
+B
2
13
+B
3
12
4
11
+B
5
10
+B
6
9
GND
7
8
GND_SW
ICA3
TAC08F
AND GATE
+B
LA802
8
10.8µH
GND_SW
LA804
10.8µH
RA102
RA104
6.8K
6.8K
VRA4
VRA2
200
200
RA64
RA62
820
820
VRA3
VRA1
200
200
RA63
RA61
820
820
RA103
RA101
LA803
6.8K
6.8K
10.8µH
GND_SW
LA801
10.8µH
are waveform numbers shown in page 33.
8
Figure 19 SCHEMATIC DIAGRAM (6/10)
+B
+B
CA21
0.22
+B
AGND_AD
BLA6
DGND_AD
+B
CA22
0.22
GND_SW
CA50
100/50
CA51
100/50
GND_SW
CA52
100/50
+B
LA806
5.6µH
CA802
CA806
RA802
RA804
0.22
0.56
16
CA804
CA808
CA810
0.56
0.22
0.22
LA808
5.6µH
GND_SW
LA807
5.6µH
CA809
CA803
CA807
0.22
0.22
0.56
CA801
RA803
CA805
0.56
0.22
RA801
LA805
16
5.6µH
9
10
– 19 –
CNPA5
BLA1
+B
+5VA
1
CA13
BLA2
100/10
AGND
2
BLA3
3
DGND
CA14
100/10
BLA5
4
+5VD
BLA4
RESET
5
BI4A
BLA21
BLA18
+B
+24V
1
BLA22
BLA19
AGND
2
BLA23
BLA20
-24V
-B
3
BLA25
BLA24
-12V
-B
4
16
16
11
SM-SX1/SX1W
1
1
2
2
3
3
CNP305
TO
4
4
MAIN PWB
P15 9-A
5
5
CNWAM3
1
2
CNP306
TO
3
MAIN PWB
P15 9-A
4
CNSA4
R+
A
R-
TO
B
SPEAKER PWB
L-
C
P21 11-A
L+
D
CNWAM5
12

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