Harman Kardon HK BDS 270 Service Manual page 84

harman/kardon
A
Amplifier Board Circuit Diagram:C OUT
TP34 TP34
1
1
2
2
3
3
1 4
4
5
5
6
6
XP702 XP702
6PIN/2.5mm 6PIN/2.5mm
PVDD FILTER
2
R793 R793
0 0
VALID
R794 R794
0 0
3
+12V
+12V
4
A
7-19
B
PVDD
C756 C756
C799 C799
0.1uF/50V/Y5V 0.1uF/50V/Y5V 0.01uF/50V/Y5V 0.01uF/50V/Y5V R763 R763
10K 10K
R760 R760
3.3 3.3
LAYOUT NOTE: LAYOUT NOTE: LAYOUT NOTE:
EMI SNUBBER EMI SNUBBER EMI SNUBBER
PLACE TO THE PLACE TO THE PLACE NEAR
RIGHT OF U100 LEFT OF U100 J901 PIN 1
+12V
R733 R733 10 10
R734 R734 10 10
C726 C726
0.1uF/50V/Y5V 0.1uF/50V/Y5V
C725 C725
0.1uF/50V/Y5V 0.1uF/50V/Y5V
U708 U708
AMP_44P_TAS5342 AMP_44P_TAS5342
1 44
GVDD_B GVDD_A
2 43
OTW
OTW BST_A
3 42
NC NC
+3.3V 4 41
R711 R711 NC PVDD_A
10K 10K
5 40
TP51 TP51 SD PVDD_A
6 39
PWM_A OUT_A
7 38
TP52 TP52
RESET_AB GND_A
8 37
R735 R735 PWM_B GND_B
22K 22K
9 36
OC_ADJ OUT_B
10 35
GND PVDD_B
11 34
AGND BST_B
12 33
VREG BST_C
R828 R828
C727 C727 0 0 13 32
M3 PVDD_C
0.1uF/50V/Y5V 0.1uF/50V/Y5V
R829 R829
0 0 14 31
M2 OUT_C
R830 R830
15 30
0 0
M1 GND_C
16 29
PM_A5C PWM_C GND_D
17 28
RESET_CD OUT_D
18 27
PM_B5C PWM_D PVDD_D
19 26
NC PVDD_D
20 25
R757 R757 NC NC
0 0
21 24
VDD BST_D
R758 R758 10 10
C728 C728 22 23
GVDD_C GVDD_D
0.1uF/50V/Y5V 0.1uF/50V/Y5V
C729 C729 C730 C730
0.1uF/50V/Y5V 0.1uF/50V/Y5V
0.1uF/50V/Y5V 0.1uF/50V/Y5V
R759 R759
10 10
B
C
C743 C743
0.1uF/50V/X7R 0.1uF/50V/X7R
C744 C744
0.1uF/50V/X7R 0.1uF/50V/X7R
C1028 C1028
0.033uF/50V/X7R 0.033uF/50V/X7R
TP49 TP49
TP50 TP50 C1027 C1027 0.033uF/50V/X7R 0.033uF/50V/X7R
C1024 0.033uF/50V/X7R C1024 0.033uF/50V/X7R
L716 L716
10uH/5A 10uH/5A
Linewidth 2mm
1000pF/50V/X7R 1000pF/50V/X7R
C1023 C1023 C1022 C1022
0.033uF/50V/X7R 0.033uF/50V/X7R 0.47uF/63V 0.47uF/63V
1000pF/50V/X7R 1000pF/50V/X7R
L715 L715 Linewidth 2mm
10uH/5A 10uH/5A
Linewidth 2mm
C741 C741
0.1uF/50V/X7R 0.1uF/50V/X7R
LC DEMODULATION
FILTER
C759 C759
C742 C742
0.1uF/50V/Y5V 0.1uF/50V/Y5V
0.1uF/50V/X7R 0.1uF/50V/X7R
LAYOUT NOTE
PLACE ON
COMPONENT SIDE
C
7-19
D
D701 NC D701 NC
+ +
CE736 CE736
D700 NC D700 NC
R802 R802
NC NC
CE735 CE735
TP32 TP32
NC NC
R1009 R1009
10 10
C1007 C1007
0.1uF/50V/Y5V 0.1uF/50V/Y5V
C1012 C1012
C1009 C1009
C+
0.012uF/50V/Y5V 0.012uF/50V/Y5V
C-
C1008 C1008
0.012uF/50V/Y5V 0.012uF/50V/Y5V
C1021 C1021 C1006 C1006
0.1uF/50V/Y5V 0.1uF/50V/Y5V
R1008 R1008
10 10
TP33 TP33
C757 C757
0.01uF/50V/Y5V 0.01uF/50V/Y5V
R761 R761
3.3 3.3
D
BDS 270 + 570 Service Manual
E
1
2
R803 R803
NC NC
FAN_CT#
NC NC
PVDD
L16 L16
FB80@100MHz FB80@100MHz
+ + + CE750 + CE750
CE749 CE749
1000uF/50V 1000uF/50V 1000uF/50V 1000uF/50V
3
4
E
Page 84 of 90