Harman Kardon BDP 1/120 Service Manual page 49

harman/kardon
DC/DC Converters
+5V
6.3V
C E1 C563
22UF
470UF/16V
FPANEL
GND
(CLUSTER)
R565
0
SHUTDOWN SHUTDOWN_A
1 2
5%
100MW
SHUTDOWN
R564
1.5K
GND
C E4 C683 C684
22UF 22UF
470UF/16V
GND
C E5
470UF/16V
GND
C E2 C557 C558
22UF 22UF
470UF/16V
GND
Main Board Electric Diagram: DC/DC CONVERTERS
+5V
D1
+3V3_BST
K A
MBR0520LT1G
Q1
C556 G
U1 NTD40N03RT4G
0.1UF
5 1
VCC BST
2 +3V3_TG
TG
C565 C566 C567 C568
C564
+3V3_PHASE
8
PHASE
0.1UF 0.1UF 0.01UF 0.01UF
22UF
+3V3_FB
6
FB
+3V3_BG
4
BG
+3V3_COMP
7 3
COMP/DISN GND
Q2
G
NCP1582DR2G
NTD40N03RT4G
R2
SO8
Q5 1.5K
g GND
PMBF170
GND
C554
560PF
C555
0.015UF
+5V
D9
GND
+1V8_BST K A
MBR0520LT1G
C63
Q9
G
U16 NTD40N03RT4G
5 1 0.1UF
VCC BST
+1V8_TG
2
TG
C682 C679 C680 C681
+1V8_PHASE
8
PHASE
0.1UF 0.1UF 0.01UF 0.01UF
+1V8_FB
6
FB
+1V8_BG
4
BG
+1V8_COMP 7 3
COMP/DISN GND
G Q11
NCP1582DR2G NTD40N03RT4G
SO8
R68
g Q10 GND
1.5K
PMBF170
GND
C62 C61
0.015UF 560PF
+5V
D6
GND
+1V2_BST
K A
MBR0520LT1G
Q3
C603 G
U9 NTD40N03RT4G
0.1UF
5 1
VCC BST
+1V2_TG
2
TG
C559 C560 C561 C562
+1V2_PHASE
8
PHASE
0.1UF 0.1UF 0.01UF 0.01UF
+1V2_FB
6
FB
+1V2_BG
4
BG D
+1V2_COMP
7 3
COMP/DISN GND
Q4
G
NCP1582DR2G
NTD40N03RT4G
SO8 G
R546 GND
Q8
g 1.5K
PMBF170
S
GND
C601
C602
560PF
0.015UF
GND
BDP 1 / BDP 10 Service Manual
+3V3
L1
6.9UH
1 2
DC_3.3V
1.85A
R531
(CLUSTER)
1K CE30 C548 C550 C552 C553 C549 C551
1 2
100MW 1%
22UF 0.1UF 0.1UF 0.01UF 0.01UF 0.01UF
3.3V @ 1.0A = 3.3W
2200UF/6.3V
R532
316
GND
GND
L11
4.8UH 2.25A +1V8
1 2 DC_1.8V
R574
(CLUSTER)
CE34 C675 C673 C677 C678 C676 C674
1K
1 2
100MW 1%
22UF 0.1UF 0.1UF 0.01UF 0.01UF 0.01UF
2200UF/6.3V
1.8V @2.0A = 3.6W
R573
806
GND
GND
The value must be ordered
+1V2
L2
1.6UH
1 2
DC_1.2V
7.5A
R23
(CLUSTER)
CE31 C544 C595 C591 C545 C593 C546
1K
1 2
100MW 1%
22UF 0.1UF 0.1UF 0.01UF 0.01UF 0.01UF
2200UF/6.3V 1.2V @ 4.0A = 4.8W
2.5V
R24
1.91K
GND
GND
DC/DC Power --> Design notes and Layout Guidelines:
1- Note that the current consumption for each rail are estimated. They must be must be
measured with the complete player application running.
2- Power sequencing: 3.3V, 1.8V and 1.2V ramp up at the same time.
49
T P2
T P6 T P7 T P9
1 1 1
1
GND GND
GND GND
T P3 TP4
+1V2 1 +3V3 1
TP8
+1V8 1
HS1
1 2