Read Harman Kardon BDS 270 Service Manual online
A
A
B
B
C
C
D
D
E
E
1
1
2
2
3
3
4
4
Power ON / OFF Mute
PVDD
+12V
+12V
+12V
5V
+3.3V
OTW
PM_B1L
PM_A2R
PM_A1L
PM_B2R
VALID
FAN_CT#
FAN_CT#
R+
R-
L+
L-
P_MUTE
VALID
C+
C-
C-
R+
R-
L+
L-
SR+
SR-
SL+
SL-
R-
L+
L-
SR+
SR-
SL+
SL-
BD_MUTE
C784
1000pF/50V/X7R
C784
1000pF/50V/X7R
L710
10uH/5A
10uH/5A
L710
10uH/5A
10uH/5A
C1000
0.1uF/50V/X7R
C1000
0.1uF/50V/X7R
R812
0
R812
0
D771
LL4148
LL4148
D771
LL4148
LL4148
+
NC
CE727
+
NC
CE727
R762
3.3
R762
3.3
R800
0
R800
0
R702
10K
R702
10K
TP127
TP127
R1000
10
R1000
10
TP24
TP24
C766
1000pF/50V/X7R
C766
1000pF/50V/X7R
C760
0.1uF/50V/Y5V
C760
0.1uF/50V/Y5V
C789
0.012uF/50V/Y5V
C789
0.012uF/50V/Y5V
C763
0.1uF/50V/Y5V
C763
0.1uF/50V/Y5V
C776
0.1uF/50V/X7R
C776
0.1uF/50V/X7R
+
CE745
1000uF/50V
+
CE745
1000uF/50V
L709
10uH/5A
10uH/5A
L709
10uH/5A
10uH/5A
XP701
10PIN/3.96mm
XP701
10PIN/3.96mm
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
R748
NC
NC
R748
NC
NC
C758
0.01uF/50V/Y5V
C758
0.01uF/50V/Y5V
TP22
TP22
R747
NC
NC
R747
NC
NC
U731
AMP_44P_TAS5342
U731
AMP_44P_TAS5342
GVDD_B
1
OTW
2
SD
5
PWM_A
6
RESET_AB
7
PWM_B
8
OC_ADJ
9
GND
10
AGND
11
VREG
12
M3
13
M2
14
M1
15
PWM_C
16
RESET_CD
17
PWM_D
18
GVDD_C
22
GVDD_D
23
BST_D
24
PVDD_D
27
OUT_D
28
GND_D
29
GND_C
30
OUT_C
31
PVDD_C
32
BST_C
33
BST_B
34
PVDD_B
35
OUT_B
36
GND_B
37
GND_A
38
VDD
21
GVDD_A
44
BST_A
43
PVDD_A
40
OUT_A
39
NC
3
NC
4
NC
19
NC
20
NC
25
PVDD_D
26
PVDD_A
41
NC
42
Q701
PNP_MMBT8550CLT1
Q701
PNP_MMBT8550CLT1
D711
NC
D711
NC
TP116
TP116
C764
0.1uF/50V/Y5V
C764
0.1uF/50V/Y5V
R801
0
R801
0
C794
0.1uF/50V/X7R
C794
0.1uF/50V/X7R
+
NC
CE728
+
NC
CE728
TP117
TP117
+
NC
CE726
+
NC
CE726
C788
0.47uF/63V
C788
0.47uF/63V
R796
0
R796
0
R129
3.3K/1%
3.3K/1%
R129
3.3K/1%
3.3K/1%
C791
0.1uF/50V/Y5V
0.1uF/50V/Y5V
C791
0.1uF/50V/Y5V
0.1uF/50V/Y5V
R776
1K
R776
1K
R1001
10
R1001
10
C767
0.012uF/50V/Y5V
C767
0.012uF/50V/Y5V
TP118
TP118
Q702
NPN_MMBT8050C
Q702
NPN_MMBT8050C
R745
NC
NC
R745
NC
NC
C709
0.033uF/50V/X7R
C709
0.033uF/50V/X7R
C782
0.1uF/50V/Y5V
C782
0.1uF/50V/Y5V
D781
LL4148
D781
LL4148
D770
LL4148
LL4148
D770
LL4148
LL4148
+
NC
CE725
+
NC
CE725
C783
1000pF/50V/X7R
C783
1000pF/50V/X7R
TP119
TP119
R799
10
10
R799
10
10
TP25
TP25
D710
NC
D710
NC
R724
22K
R724
22K
C700
0.033uF/50V/X7R
C700
0.033uF/50V/X7R
C795
0.1uF/50V/X7R
C795
0.1uF/50V/X7R
C768
0.012uF/50V/Y5V
C768
0.012uF/50V/Y5V
R1002
10
R1002
10
R797
0
R797
0
D774
LL4148
D774
LL4148
D709
NC
D709
NC
TP122
TP122
TP23
TP23
R722
0
R722
0
TP123
TP123
C775
0.1uF/50V/Y5V
C775
0.1uF/50V/Y5V
C770
0.1uF/50V/Y5V
C770
0.1uF/50V/Y5V
R773
2.2K
R773
2.2K
L12
FB80@100MHz
L12
FB80@100MHz
C718
0.033uF/50V/X7R
C718
0.033uF/50V/X7R
L711
10uH/5A
10uH/5A
L711
10uH/5A
10uH/5A
L13
FB80@100MHz
L13
FB80@100MHz
R741
10
10
R741
10
10
C713
0.033uF/50V/X7R
C713
0.033uF/50V/X7R
R798
10
10
R798
10
10
R1003
10
R1003
10
+
220uF/16V
CE713
+
220uF/16V
CE713
TP124
TP124
C786
0.1uF/50V/Y5V
C786
0.1uF/50V/Y5V
C785
0.1uF/50V/Y5V
C785
0.1uF/50V/Y5V
R746
NC
NC
R746
NC
NC
TP125
TP125
C769
0.1uF/50V/Y5V
C769
0.1uF/50V/Y5V
+
CE746
1000uF/50V
1000uF/50V
+
CE746
1000uF/50V
1000uF/50V
D708
NC
D708
NC
L712
10uH/5A
10uH/5A
L712
10uH/5A
10uH/5A
C1025
0.47uF/63V
C1025
0.47uF/63V
R700
10
10
R700
10
10
C748
0.1uF/50V/Y5V
C748
0.1uF/50V/Y5V
TP126
TP126
C787
0.1uF/50V/Y5V
C787
0.1uF/50V/Y5V
C790
0.012uF/50V/Y5V
C790
0.012uF/50V/Y5V
R778
47K
47K
R778
47K
47K
C765
1000pF/50V/X7R
C765
1000pF/50V/X7R
Amplifier Board Circuit Diagram:L+SL OUT
7-17
7-17
harman/kardon
BDS 270 + 570 Service Manual
Page 82 of 90
Click on the first or last page to see other BDS 270 service manuals if exist.