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44
HCD-AZ2D/AZ5D
HCD-AZ2D/AZ5D
7-18. SCHEMATIC DIAGRAM – MAIN BOARD (4/4) –
D953
D954
D981
D982
D983
IC3
Q31
Q32
Q73
Q81
Q83
Q464
Q951
Q952
Q982
R32
R35
R61
R71
R76
R77
R78
R80
R83
R84
R85
R86
R87
R90
R92
R93
R94
R951
R981
R983
R984
R985
C70
C72
C75
C77
C79
C82
C87
C89
C951
C952
C953
C954
C955
C956
C957
C958
C959
C983
C990
C991
C992
D951
NO953
NO955
CN203
IC954
IC955
IC956
R98
Q82
R88
C982
R982
D984
C984
Q983
Q984
IC951
IC952
IC953
D956
FB950
FB980
D
9
5
5
D
9
5
5
C950
C980
JW903
CN951
CN952
R47
Q36
Q35
Q34
Q33
R44
R41
R38
CN102
M902
M901
CN955
CN954
EP901
CN101
C260
Q981
Q71
C94
C93
JW951
C981
R91
R81
C90
C85
R60
R50
R75
R82
C31
C32
C33
C34
R40
R37
R34
R31
C35
R43
C36
R46
R48
R45
R42
R39
R36
R33
10EDB40
10EDB40
1SS355
UDZS-6.2B
UDZS-6.8B
NJM3414AV
2SC5938
2SC5938
2SC5938
2SC5938
2SC5938
2SK1828
RT1N141C
RT1N141C
2SC3052
100k
100k
47
47
68k
100k
1k
1k
1k
2.2k
10k
68k
100k
1k
100k
1k
2.2k
10k
4.7k
10k
220k
10k
22p
10
50V
10
50V
470
10V
10
50V
10
50V
470
10V
10
50V
1
50V
100
10V
1
50V
470
10V
1
50V
100
10V
1
50V
1000
10V
1
50V
22
50V
1000
6.3V
1
50V
1000
6.3V
1SS355
5P
3P
13P
PQ09RD21
PQ3RD13
PQ05RD11
1k
2SD1616
1k
4.7
50V
47k
1SS355
0.01
2SD2525
RT1N141C
TA7809LS
TA7809LS
TA7804LS
1
0
E
D
B
4
0
4700
16V
4700
16V
8P
3P
100k
2SC5938
2SC5938
2SC5938
2SC5938
100k
100k
100k
7P
(FAN)
(FAN)
2P
3P
(CHASSIS)
21P(AZ5D)
19P(AZ2D)
2200p
2SC3052
2SC5938
10
50V
1000
10V
0.01
47
47
22p
10
50V
47k
47k
10k
100k
10
50V
10
50V
10
50V
10
50V
2.2k
2.2k
2.2k
2.2k
10
50V
2.2k
10
50V
2.2k
1k
1k
1k
1k
1k
1k
5
45
7
6
9
5
8
5
9
6
2
6
3
6
6
1
2
3
4
10
18
12
17
20
6
8
6
7
6
5
6
4
7
9
7
8
7
3
7
2
FR-OUT
FL-OUT
C-OUT
SR-OUT
SW-OUT
SL-OUT
49
A65
50
F
L
-
O
U
T
F
R
-O
U
T
4
8
51
52
53
54
55
56
57
58
2
1
59
60
23
27
33
25
32
31
28
26
34
19
SW+5V
D-GND
M+9V
M-GND
SW+3.3V
OCSW1
XIFCS
MREQ
D-GND
KRMOD
IFBSY
MIC
SCO
SIO
SOO
VOICE(N.C)
V+5V
VMUTE
V-GND
FAN CTRL
SCDT
SD
NSPMUTE
OVF
INIT
/OTW
SCSHIFT
D-GND
D-GND
D-GND
A-GND
A-GND
FR-OUT
FL-OUT
SW-GND
EVER+4V
ON/OFF
A-GND
A-GND
C-OUT
SR-OUT
DBFB FEEDBACK
UNREG+12V
SW-GND
UNREG+12V
SL-OUT
A-GND
SW-OUT
FAN+
FAN-
FAN+
/RST(ENABLE)
SCLATCH(CS1)
SCLATCH(CS2)
SCLATCH(CS3)
P-DOWN(AD POWER)
UNREG+7.5V
UNREG+7.5V
FAN-
FAN+
+9V REGULATOR
+3.3V REGULATOR
+5V REGULATOR
Q951,952
REGULATOR CONTROL
SWITCH
SWITCH
MUTING
MUTING
HEADPHONE AMP
RIPPLE FILTER
MUTING
MUTING
FAN MOTOR SWITCH
Q981,982
FAN MOTOR CONTROL
FAN MOTOR DRIVE
+9V REGULATOR
+9V REGULATOR
+4V REGULATOR
(AZ2D)
(AZ5D)
(AZ5D)
(AZ5D)
(4/4)
SYSRST
(AZ5D)
(AZ5D:EA,AUS)
S
3.3V_MNT
Q31-36
MUTING
D-GND
A-GND
A+9V
SWITCHING
REGULATOR
(1/2)
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299