Read Sharp SD-AT50H (serv.man13) Service Manual online
SD-AT50H
– 36 –
Figure 36 SCHEMATIC DIAGRAM (7/11)
A
B
C
D
E
F
G
H
1
2
3
4
5
6
• NOTES ON SCHEMATIC DIAGRAM can be found on page 42.
8
4
8
4
32 31 30 29 28 27 26 25
16
15
14
13
12
11
10
9
2
1
1
2
3
4
5
6
7
8
17
17
18
24
18
19
20
21
22
23
24
1
2
3
5
6
7
1
2
3
5
6
7
3
+B_CHECK
PROTECT
PROTECT
+3.3V(USWD)
OFFSET
GND
CENTER
SUBWOOFER
A/D_RESET
OFFSET
A/D_RESET
PROTECT
PROTECT
RESET
AMP_SIN
FAN
AC_DETECT
BASS-SW
OFFSET
SYS_STOP
W_S_MUTE
FAN_LOCK
F_S_MUTE
S_S_MUTE
C_S_MUTE
RLY_+12V
AMP_INT
AMP_INT
AMP_SOUT
AMP_CLK
A/D_RESET
BASS-SW
SP_RLY
–B_CONT
POWER
TIMING_CK
AMP_STB
RLY_+12V
SYS_STOP
AC_DETECT
PROTECT
S_S_MUTE
C_S_MUTE
W_S_MUTE
GND
CHASSIS
RESET
TEST
POINT
SURROND
D0
P1-3
P1-2
P1-1
P1-0
PO-3
PO-2
PO-1
PO-0
Ain3/CMPO+
Ain2/CMPO–
Ain1/CMPO+
Ain0/CMPO–
P3-1/NT1
P3-0/NTO
VDCE
VDD
Vss
Xin
Xout
CNVss
RESET
P2-2/Sin
P2-1/Sout
P2-0/SCK
D7/CNTR1
D6/CNTR0
D5
D4
D3
D2
D1
SUBWOOFER
GND
CENTER
SURROND GND
SURROND R-CH
SURROND L-CH
GND
R-CH
L-CH
CENTER
SUB
WOOFER
POINT
5
6
7
8
9
10
11
12
13
2
6
4
5
6
7
8
9
10
11
12
8
7
5
1
+
–
–
VDD
VSS
+
–
–
+
+
VSS
VDD
+3.3V(USWD)
+3.7V(UCON)
A_+12V
A_–12V
GND(A)
TIMING_CK
–B_CONT
POWER
GND(D2)
+15V
AC_DETECT
RLY_+12V
AMP_CLK
AMP_INT
AMP_STB
AMP_SOUT
AMP_SIN
RLY_GND
POWER PWB-C(2/2)
G
S
D
1
2
3
1
2
3
1
2
3
1
3
2
1
3
2
1
1
3
2
3
2
18
17
16
15 14
13
12
11
10 9
6 5 4
9 8 7
3 2 1
4
5
6
7
3 2
1
8 6 7 5 4 3 2 1
CNA100
P41 10 - A
TO 1-BIT AMP. PWB
CNP805
P42 2 - D
TO LIMIT PWB
+B
+B
+B
+B
+B
+B
+B
+B
-B
-B
-B
-B
+B
+B
+B
+B
+B
+B
+B
+B
FRONT L-CH
FRONT R-CH
SURROUND L-CH
SURROUND R-CH
RESET
Q817~Q820: BUFFER
Q811~Q816: MUTE DRIVER
Q811~Q816: MUTE DRIVER
BASS-SW
DRIVER
BASS-SW
DRIVER
P34 1 - F~H
C874
0.022
R740
10K
R701
1K
R720
1K
R719 1K
R716 1K
R737 100K
R736 4.7K
R717
1K
R739 4.7K
R755 100K
R762 47K
R759 10K
R761
1K
R758
1K
R754
1K
R738 100K
R770 100K
R705
1K
R707
1K
R725
100K
R709
1K
R708
1K
R724
10K
R727
4.7K
R726
100K
R723
8.2K
R704
1K
R703
1K
R706
1K
XL701
2 MHz
C703 100/10
C704 0.022
R768
330
L701
2.2
µ
H
R711
1K
R730 4.7K
R764 47K
R763
1K
R731
10K
R741 39K
R746
1K
D705
DS1SS133
R713B 1K
R715 1K
R734 4.7K
R714B 1K
R733 4.7K
R753 100K
R757 100K
R732 10K
C712
0.0047
R752
1K
R756
1K
R712
1K
R735
4.7K
IC701
IX0564AW SYSTEM
MICROCOMPUTER
C706
0.01
D703
DS1SS133
C708
0.01
IC702
PST9127
RESET
R745
680
C711
0.1
R765
33K
R766
47K
R751
47K
R749
33K
D708
DS1SS133
Q704
KRA106 M
Q705
KTC3199 GR
D709
DS1SS133
D707
DS1SS133
Q703
KTC3199 GR
R748
470K
R750
10K
R747
1K
D706
DS1SS133
D710
DS1SS133
R769
1K
C850 47/25
C851 47/25
L803
Q816
KTC3199 GR
R866 3.3K
Q818
KRA107 M
R865 3.3K
Q817
KRA107 M
Q815
KTC3199 GR
R846 3.3K
Q814
KTC3199 GR
Q813
KTC3199 GR
R845 3.3K
Q820
KRA107 M
IC813
KIA4558F
PRE AMP.
C859
22/16
R873
3.3K
R893
1M
R892
1.5K
R852
2.2K
Q828
KRC102 M
Q829
KRA107 M
C826
10/16
R832
3.3K
R855
100K
C837
10/16
R851
3.3K
R827
10K
R814
10K
D819
DS1SS133
C860
3.3/50
R828 5.6K
R813
820
R809
22K
Q859
CPH3418
C846
0.1
C842
100/16
R862
1K
R810
10K
C840
0.001
R860 18K
R863
100K
R864
100K
C847
0.022
C848
0.022
R859
12K
C839
33P
R861
1K
C841
10/16
R857 22K
R842
1K
C832
0.022
C830 10/16
R844
100K
R838 22K
R840 12K
C828 33P
IC812
KIA4558F
PRE AMP.
R839
12K
R835
100K
R836
100K
C
10
R8
3.3
R843
100K
R841
1K
C829 10/16
R837 22K
C827 33P
C831
0.022
R833
270K
L802
Q701
KRC104 M
R744
100K
C707
4.7/25
D701
DS1SS133
BI804
CNS805
C970
0.01
FM SIGNAL
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