Harman Kardon BDS 280S - Page 28

A
A
B
B
C
C
D
D
E
E
1 1
2 2
3 3
4 4
MAX 2A
20120925 change R54
AIM 3.3V: 0.9*(5.6+13)/13=3.3V
(120/220+1)*1.25=1.93
451mA
'/3<
#<
1.2VD
1.9VD
3.3VD
+12V_D
3.3VD
3.3VD
1.9VD
3.3VD
2
1.2VD
2
1.9VD
2
+12V_D
2
C700 0.1uF/50V/Y5VC700 0.1uF/50V/Y5V
C718
0.1uF/50V/Y5V
C718
0.1uF/50V/Y5V
C709
0.1uF/50V/Y5V
C709
0.1uF/50V/Y5V
C702
10uF/10V
C702
10uF/10V
C706
NC/22uF/6.3V
C706
NC/22uF/6.3V
R707
100K
R707
100K
L701 10uH/2AL701 10uH/2A
R700 0R700 0
FB700 120/2AFB700 120/2A
C716
0.1uF/50V/Y5V
C716
0.1uF/50V/Y5V
C717
3300pF/50V/X7R
C717
3300pF/50V/X7R
U701
AS1117
U701
AS1117
input
3
Vout
4
ADJ/GND
1
output
2
L700
2.2uH/3A
L700
2.2uH/3A
R777 10KR777 10K
R712
10K/1%
R712
10K/1%
R710
4.3K/1%
R710
4.3K/1%
R703
15K/1%
R703
15K/1%
C711
1uF/25V/Y5V
C711
1uF/25V/Y5V
C703
10ȝF
C703
10ȝF
U702
EUP3482A
U702
EUP3482A
BS
1
IN
2
SW
3
FB
5
COMP
6
GND
4
SS
8
EN
7
FB702
10/2A
FB702
10/2A
C707
0.1uF/50V/Y5V
C707
0.1uF/50V/Y5V
R711
7.5K
R711
7.5K
R704
0
R704
0
+
100uF/16V
CE700
+
100uF/16V
CE700
U700
G
5725
U700
G
5725
EN
1
VIN
4
LX
3
VFB
5
GND
2
R708
22k/1%
R708
22k/1%
R709
39K
R709
39K
C705
10ȝF
C705
10ȝF
C712
10uF/10V/Y5V
C712
10uF/10V/Y5V
C713
0.1uF/50V/Y5V
C713
0.1uF/50V/Y5V
R706
120/1%
R706
120/1%
C714
0.01uF/50V/Y5V
C714
0.01uF/50V/Y5V
R701
150
R701
150
C715
1uF/16V/Y5V
C715
1uF/16V/Y5V
R702
15K/1%
R702
15K/1%
R705 220/1%R705 220/1%
C704
0.1uF/50V/Y5V
C704
0.1uF/50V/Y5V
C721
10uF/10V/Y5V
C721
10uF/10V/Y5V
+
100uF/16V
CE701
+
100uF/16V
CE701
FB701
10/2A
FB701
10/2A
7-2 7-2
HUB Board Circuit Diagram:
Harman Kardon
BDS 280 + 580 Service Manual
Page 39 of 87