Sharp SM-SX100 Service Manual page 31

ed.).
12
+B
0V
11
CXA1
11.2896MHz
2.2V
10
CA8
18P(CH)
1.3V
9
CA10 CA9
DGND_AD
0.22 18P(CH)
8 +B
5V
5V
+B
7
DGND_AD
2.5V CA12
6
0.22
2.5V
5
0V
4
DGND_AD
2.5V
3
2.5V
2
5V
1 +B
DGND_AD
CA11
0.22
SION
+B
+B
G
RA102
6.8K
8
VRA2
200(B)
RA62
NT 680
RLYA1
RA64
6 NC NC
RA68 7
750
1.3K
5 8
4
9
VRA1
3 10
200(B)
2 11
1 12
–
+B
-BIT AMP
EDBACK
LEVEL RA103
JUSTMENT
6.8K
5V(8Ω)
0V(4Ω)
DA17
DA119
BLA25
–22.2V(8Ω)
–14.4V(4Ω)
CA52
100/50
31.8V(8Ω)
BLA21
+B
24V(4Ω)
CA50
BLA22
100/50
–B
BLA23
CA51
100/50
AGND_SW
–B
–31.8V(8Ω)
–B
–24V(4Ω)
• The numbers 1 to 8 are waveform numbers shown in page 50.
7
+B
ICA2
74AC00F
+B
NAND GATE
+B
1 14
VCC
CA21
+B 2
13
0.22
+B
3
12
4
11
5
+B 10
+B
6
9
GND
7 8
DGND_SW
CA22
0.22
+B
1 VCC 14
+B
2 13
+B
DGND_SW
3 12
4 11
5 10
+B
6 9
+B
7 GND 8
ICA3
DGND_SW
TAC08F
AND GATE
–B
LA802
10.8µH
AGND_SW
LA804
RA104
10.8µH
6.8K
RA66
2.4K
RA65
2.4K
DGND_SW
AGND_SW
LA803
10.8µH
CA803
0.56
AGND_SW
LA801
10.8µH
BLA24
–B
BLA18
+B
BLA19
BLA20
–B
Note) GND makes the point of AGND reference at the time of the instrumentation.
8 9
Figure 31 SCHEMATIC DIAGRAM (5/9)
1BIT AMP.PWB–B
+B
+B
–B
BLA1
+B
CA13
BLA2
100/16
AGND_AD
BLA6 BLA3
CA14
DGND_AD
100/16
+B
BLA4 BLA5
+B
+B
–B
LA806
LA808
5.6µH 75µH
RA804
16/5W
NC
NC
CA810
0.22
5.6µH
75µH
LA805
LA807
5.6µH
75µH
CA809
0.22
NC
NC
RA803
16/5W
5.6µH
75µH
10
– 31 –
SM-SX100
4.96V(0V)
1 RESET 1 1
2 –22V 2 2
4.8V
3 +5VA 3 3
4 4 4
AGND
5 DGND 5 5
5V
+5VD
6 6 6
7 +5V(RELAY) 7 7
5V(8Ω)
0V(4Ω)
NC
8 8 8
NC
9 9 9
CNPA6
CNWAM3B CNWAM3A
TO RELAY PWB
L+
P29 10 - A
L–
TO RELAY PWB
R–
P29 11 - A
R+
+32V
1 1 1
AGND
2 2 2
–32V
3 3 3
CNPA8 CNWAM4B CNWAM4A
11
P29 9 - A
CNP109
TO MAIN PWB
TO MAIN PWB
CNP102
P29 10 - A
12