Harman Kardon HD 970, Service Manual

Page: 21 / 30

5
5
4
4
3
3
2
2
1
1
E E
D D
C C
B B
A A
230V
15V
Chassis screwed transformer
15V
0V
15V
low-ESR low-ESR
low-ESR low-ESR
ATAPI PS
300mA
300mA
2A
Samwha capacitors:
47uF/25V SG serie
470uF/35V RZ serie
4.7mF/35V HC serie
Coilcraft: RFB0810-470K
Sumida: RCH114-470K
HD970_PC01 1.2
HD 970 Main board
Harman/Kardon
A3
5 5
Title
Size Document Number Rev
Date: Sheet of
12V_ATAPI
STANDBY
RST#
SYNC_384K
STANDBY
+1.2V
+3.3V
+5VSTBY
+12VA +5VA
+5V
-12VA
+3.3V
+3.3V
+3.3V
+3.3V
J5
CONN PLUG 6
1
2
3
4
5
6
HS2
SK470
TP11
C43
100nF
+
C51
4.7mF/35V
U13
LM1117T-ADJ
3
1 2
VIN
ADJ VOUT
MT4
R75
240R
R22
240R
C68
100nF
U16
LM2670T-5.0
1 2
3
4
5
6
7
OUT IN
BOOST
GND
SYNC
FB
ON/OFF
+
C52
4.7mF/35V
C89
100nF
+
C20
47uF/25V
C59
100nF
R94 10K
J7
CONN PLUG 4
1
2
3
4
HS1
SK470
U19C
ADSP21532_TQFP
94
87
86
85
84
83
1
2
3
7
8
9
15
19
30
39
40
41
42
43
44
56
70
88
89
90
91
92
97
106
117
128
129
130
131
132
133
144
155
170
174
175
176
4
5
6
12
20
31
45
57
71
93
107
118
134
145
156
171
25
52
66
80
111
143
157
168
18
TCK
TDO
TDI
TMS
TRST
EMU
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
VROUT
VROUT
VDDEXT
VDDEXT
VDDEXT
VDDEXT
VDDEXT
VDDEXT
VDDEXT
VDDEXT
VDDEXT
VDDEXT
VDDEXT
VDDEXT
VDDEXT
VDDEXT
VDDINT
VDDINT
VDDINT
VDDINT
VDDINT
VDDINT
VDDINT
VDDINT
VDDRTC
R93
10K
C16
100nF
D4
30BQ040
MT3
R89
390R
C82 100nF
C65
100nF
TP4
R32
10K
C84 100nF
R74
720R
L4
47uH
+
C25
4.7mF/35V
+
C10
47uF/25V
C37
100nF
TP19
MT2
R47
10K
Q24
BSS123
3
1
2
U6
LM317T-ADJ
3
1 2
VIN
ADJ VOUT
R76
720R
R103 4K7
TP17
C39
100nF
C54
100nF
TP1
TP32
R119
1K
-
+
D3
GBU8D
2
1
3
4
MT1
C85 100nF
C42
100nF
+
C60
47uF/25V
TP29
+ C38
47uF/25V
+
C15
4.7mF/35V
Q26
BSS123
3
1
2
C9
100nF
TP30
+
C67 47uF/25V
U3
LM337T-ADJ
1
2
3
ADJ
VIN
VOUT
+
C49
47uF/25V
+ C62
470/35V
TP31
R53
240R
U9
LM317T-ADJ
3
1 2
VIN
ADJ VOUT
+
C69
470/35V
+ C63
470/35V
R48
22K
C74 100nF
Q27
2SC2406
2
3
1
Q23
2SA1035
1
2
3
+
C70
470/35V
U14
LM2670T-12
1 2
3
4
5
6
7
OUT IN
BOOST
GND
SYNC
FB
ON/OFF
C66
10nF
R34
22K
R87
240R
C83 100nF
C57
100nF
R95 10K
-
+
D2
GBU8D
2
1
3
4
R105
1K
HS4
SK470
C73
100pF
TP10
C91
100nF
U10
LM1117MPX-ADJ
3
1 2
4
VIN
ADJ VOUT
VOUT
C72
10nF
U17
LM1117MPX-ADJ
3
1 2
4
VIN
ADJ VOUT
VOUT
R27
2K2
U20
DS1818
1 2
3
RST VCC
GND
TP12
D5
30BQ040
R58
2K2
HS3
SK470
C19
100nF
R104 10K
C76 100nF
+
C71
47uF/25V
C30
100nF
C77 100nF
J8
CONN RECT 7x2
2
4
6
8
10
12
14 1
3
5
7
9
11
13
C75 100nF
R73
240R
Q25
2SA1035
1
2
3
L3
47uH
R33
22K
D6
30BQ040