Sharp 1-BIT AMPLIFIER SM-SX1 Service Manual page 19

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
DR 7
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
+B
7:FET DRIVER
7
8
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
SM1XP2 NC
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 are waveform numbers shown in page 33.
7
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+B
ICA2
74AC00F
+B
NAND GATE
+B +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
GND_SW
TAC08F
AND GATE
+B
LA802
10.8µH
CA802
0.56
GND_SW
CA804
0.56
LA804
10.8µH
RA102 RA104
6.8K 6.8K
VRA4
VRA2
200
200
RA64
RA62
820
820
VRA3
GND_SW
VRA1
200
200
RA63
RA61
820
820
RA103
RA101 LA803
6.8K
6.8K 10.8µH
CA803
0.56
CA801
GND_SW
0.56
LA801
10.8µH
8 9
Figure 19 SCHEMATIC DIAGRAM (6/10)
+B
CA21 +B
0.22
CA13
100/10
AGND_AD
BLA6
CA14
DGND_AD
100/10
+B
BLA4
CA22
0.22
GND_SW BLA21
+B
CA50
100/50
BLA22
CA51
100/50
BLA23
-B
CA52
100/50
BLA25
-B
LA806
5.6µH
CA806
RA802 RA804
0.22
16 16
CA808
CA810
0.22
0.22
LA808
5.6µH
LA807
5.6µH
CA809
CA807
0.22
0.22
RA803
CA805
16
0.22
RA801
LA805
16
5.6µH
10
– 19 –
SM-SX1/SX1W
CNPA5
BLA1
+5VA
1 1 1
BLA2
AGND
2 2 2
BLA3
DGND
3 3 3
BLA5
4 +5VD 4 4
RESET
5 5 5
CNWAM3
BI4A
BLA18
+24V
1 1
BLA19
AGND
2 2
BLA20
-24V
3 3
BLA24
-12V
4 4
CNSA4
R+
A
R-
TO
B
SPEAKER PWB
L-
C
P21 11-A
L+
D
CNWAM5
11 12
CNP305
TO
MAIN PWB
P15 9-A
CNP306
TO
MAIN PWB
P15 9-A