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Sharp SM-SX1 Service Manual page 22

1-bit amplifier
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SM-SX1/SX1W
A
B
C
D
E
F
SOC501
AC SOCKET
SM-SX1; AC120V,60Hz
SM-SX1W; AC110-127/
220-240V, 50/60Hz
CNS501
1
2
CORE1
G
Put The
Plastic Inner Tube.
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 32.
1
LED904 PX1124AF
LED901 PX1124AF
LED900 PX1124AF
LED902 LNG91LCF
LED903 LNG91LCF
(TOS)
AUX1
(SACD)
AUX2
(LINE1)
AUX3
(LINE2)
SELECT SWITCH PWB-A7
UNT501
1
1
2
2
AC/DC CONVERTER
3
3
4
4
5
5
OUTPUT +22V
1
1
UNT502
2
2
AC/DC CONVERTER
3
3
4
4
5
5
OUTPUT –22V
F501
SM-SX1; 4A/125V
SM-SX1W; T3.15A L 250V
1
1
1
2
2
1
2
2
3
4
TP958
C501
L502
0.33
220µH
AC INPUT FILTER PWB-A6
2
Figure 22 SCHEMATIC DIAGRAM (9/10)
TP971
8
R904 100
R913 100
TP970
7
R901 100
R910 100
TP969
6
R900 100
R909 100
TP968
5
TP967
4
TP968
3
R902 100
R911 100
TP969
2
R903 100
R912 100
TP970
1
SW900
DIGITAL 1
TP972
DIG1
(ST)
SW901
R905
DIGITAL 4
3.9K
DIG4
TP973
R906
SW902
SACD
5.6K
TP974
SW903
R907
LINE 1
12K
TP975
SW904
R908
LINE 2
39K
TP977
TP976
1
2
3
4
CNP302C
5
TO
6
MAIN PWB
P15 11-H
7
8
1
2
3
CNP302B
4
TO
5
MAIN PWB
P15 12-H
6
1
1
L501
C503
5mH
NC
2
2
TP960
0.0022
1
2
3
3
TP961
3
4
4
4
C502
0.33
C530
C531
680P
680P
3
4
– 22 –
CNS900
8
8
7
7
6
6
5
5
4
4
3
3
2
2
1
1
1
SP_RLY
AUX3
2
AUX2
3
AUX1
4
DIG_B
5
DIG_A
6
CNS704
5V(u-COM)
7
FROM
D.GND
8
INPUT
IC_STB
9
SOURCE
PWB
IC_CLK
10
P21 9-E
DATA_OUT
11
DATA_IN
12
TP963
1
1
SW501
POWER
2
2
NC
(BROWN)
3
3
4
4
(BLUE)
TP963
POWER PWB-A9
5
LED
GL9B
3
2
4
5
BI900
TP1
TP2
TP3
TP4
TP5
TP6
TP7
TP8
SEGMENT PWB-A
MICROCOMPUTE
TP41
TP42
TP43
TP44
TP45
TP46
+B
TP47
TP48
TP49
TP50
TP51
TP52
+B
6

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