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SD-AT50H
POWER PWB-C(1/2)
A
5
+15V
4
4
B
GND(D1)
3
3
C967
0.022
–15V
2
2
-B
DRIVER
1
1
CNS901
BI901
Q919
KTC3199 GR
C
RELAY
DRIVER
CHASSIS
GND
D_+7.5V
7
13
GND_(D)
9
GND_(UCON)
8
D
+3.7V_(UCON)
12
A__+15V
4
GND_(A)
11
E
A__–15V
1
AMP_SOUT
5
AMP_SIN
6
AMP_CLK
2
AMP_STB
3
AMP_INT
10
AMP_INT
1
AMP_STB
2
AMP_CLK
3
AMP_SIN
4
AMP_SOUT
5
–B_CONT
6
POWER
7
F
TIMING_CK
8
RLY_+12V
9
RLY_GND
10
A_+12V
11
GND(A)
12
A_–12V
13
G
AC_DETECT
14
+15V
15
+3.7V(UCON)
16
GND(D2)
17
+3.3V(USWD)
18
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 42.
1
+B
C965
0.022
C966
RL911
0.022
R930
D920
4.7K
DS1SS133
BUFFER
Q925
C950
KRC106 M
0.1
2
3
R931
1
100K
+B
D_7.5V
L915
3.3 µH
C956
220/16
+B
+3.7V(UCON)
+B
-B
+B
2
3
Figure 34 SCHEMATIC DIAGRAM (5/11)
IC912
KIA7812AP
PS904
VOLTAGE
1.5
Posistor
REGULATOR
3
1
2
C949
47/25
+B
PS903
1.5
Posistor
IC913
S812C37A
3.7V REGULATOR
+B
VOUT
VIN
+B
3
2
-B
GND
1
C952
C958
C951
0.1
10/16
10/16
L913
3.3 µH
PS901
Posistor
C937
220/25
C938
220/25
Posistor
L914
3.3 µH
+B
C943
ZD915
0.022
DZ12BSB
ZD916
C944
0.022
DZ12BSB
+B
4
– 34 –
L911
3.3 µH
R923
C931
1.5K
C929
C927
1000/25
2200/25
2200/25
R924
12K
C932
1000/25
C954
330P
1
IC911
-B
SE-B2
2
ERROR
3
AMP.
C933
1000/16
C928
C930
2200/25
2200/25
L912
3.3 µH
+B
A_+15V
1.5
GND(A)
PS902
1.5
A_–15V
-B
R937
100
+B
-B
R938
100
5
R925
2.2K
R926
1K
ZD913
DZ3.3BSB
Q911
KRC106 M
2
3
1
R945
33K
Q922
KTC3199
+B
Q924
KTC3199 GR
R
1
R936
100K
R940
4.7K
R929
4.7K
POWER
POWER
AC_DETECT
+B
6
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