SD-AT100 (serv.man5). 4 - Schematic diagrams (72-94) - Sharp Audio Service Manual (repair manual). Page 11

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SD-AT100H
– 82 –
Figure 82 SCHEMATIC DIAGRAM (11/23)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 96.
GND
+7.3V
VP
-12V(A)
GND(A)
+12V(A)
1
9
8
7
6
5
6
5
4
3
4
2
2
1
10
9
8
7
GND
OUT2
OUT1
DT2
DT1 
FB2
FB1 
INV2
INV1
NON2
NON1
RT
SCP
CT
V-Ref
VCC
1
1
2
3
2
3
4
5
6
1
2
3
7
8
16
15
14
13
12
11
10
9
DVD+5V
GND(D2) 
DVD+8V
FL-
FL+
GND(D3) 
1
2
3
5
1
7
8
10
9
4
6
12
11
13
1
1
1
POWER
CNSE06
P77  12 - F
FROM DISPLAY PWB
CNS903
P77  12 - F
FROM DISPLAY PWB
CNSE04
P77  12 - C
FROM DISPLAY PWB
+11.5V RELAY 
FREQ
GND(M1)
POSISTOR
D_GND 
+3.7V 
POWER_
STAND-BY
1
2
3
4
7
6
5
8
1
2
3
4
5
6
7
1
2
3
4
5
6
7
8
9
10
11
1
12
13
1
2
3
2
BYPASS
NOISE 
GND 
CONT
Vout
Vin 
3
1
2
CHASSIS 
GND
CNP704
P84  1 - A
TO
SPEAKER A PWB
POWER
+B
+B
+B
+B
-B
+B
+B
+B
+B
+B
POWRE B PWB-D2
-13V
+13V
+13V_ 
2
C926
47/25
R950 15K
R948
1.8K
R940
2.7K
R952 15K
R946
12K
R942 2.7K
R944
2.7K
C945
680P
R938
39K
C944
220P(CH)
R935 1.2K
RZ907
1.2K
R934 33K
RZ906
2.4K
R986
4.7K
R985
220
R984
220
ZD922
DZ13BSC 
ZD921
DZ13BSC 
R932
2.2K
ZD923
DZ33BSD 
D938
1N4004S
D932
1N4004S
D933
1N4004S
Q924
KTA1273 Y
Q923
2SD1858 R2
C935
47/25
C934
47/25
C936
10/25
C937
10/25 
C940
47/50
Q922
KTA1023 Y
R933
100
C962
47/50
R927
180
R928
180
Q932
2SD1858 R2
C981
220/16
C980
47/16
R996
56
R962
18K 
C956
100/25
L924
100
µ
H
Q926
2SB1142 S
R958
68
C954
220/25
D930
RB060L40
R960 27K 
R968 33K 
R964
1K
C960
820P
R961
15K 
R959
82K 
C959
560P
C955
100/25
C979
0.1 
D936
EK16
D935
EK16
D937
EK16
D934
EK16
C975
220/25
C976
220/25
CNS906
CNP903
L923
100
µ
H
D929
RB060L40
Q925
2SB1142S
R957
100
IC925
BA9743AV
DC/DC CONVERTER
R989 1.5
R991
270
Q930
KTA1266 GR
R992
10K
Q931
KTC3199  GR
R988
1.2
R990
270
R993
10K
C978
2.2/50
R994
220K
C953
220/25
R936
220 
C961
47/25
C951
1
R939
2.7K
R945
1.2K
C949 0.1 
R947
10K 
R941 2.7K
R943
2.7K
C947
680P
C950
0.1 
R937
56K 
R949
10K 
R951
10K 
ZD926
DZ2.7BSA
C952
1
R953
270 
R954 270
C974
220/25
C973
220/25
PS922
1.5
POSISTOR
Q933
KRC107 M
CNP907
R967
220
R980
82
R971
1K
IC921
NJM2370R
VOLTAGE REGULATOR
C969
0.1
D939
1N4004S
C943
10/16 
IC924
NJM431L
VOLTAGE REGULATOR
R926
10K
R924
56
PS924
1.5
POSISTOR
C942
0.1
Q921
KTD2058 Y
R925
10K
R981
27K
C927
0.001
Q927
KTC3199 GR
R987
220K
R969
1.5K
CNS902 
CNS905
CNP908
L950
Q928
KRC107M
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