Philips BDP2985/F7 Service Manual page 26

7-4
A
Main Board Circuit Diagram for BDP2985/F7:POWER SOURCE
1
R27 R27 1K 1K
9 OPWRSB
R29 R29
10K 10K
2
3
VCC 3.3V_STBY
R181 R181 R176 R176 R179 R179
12K 12K 3.3K 3.3K 10K 10K
RESET_1 RESET_1
R177 R177 100 100
R182 R182 Q1 Q1 Q4 Q4 C214 C214
2.7K 2.7K NPN_3DG3904M NPN_3DG3904M NPN_3DG3904M NPN_3DG3904M
4.7uF/10V/Y5V 4.7uF/10V/Y5V
4
A
B
VCC
R1 R1 100 100
C5 C5 C4 C4
2.2uF/10V/Y5V 2.2uF/10V/Y5V 0.1uF/16V/X7R 0.1uF/16V/X7R
R2 R2 100K 100K
EN
VCC
C6 C6
0.1uF/16V/X7R 0.1uF/16V/X7R
R24 R24
10K 10K
R3 R3
47K 47K
EN
EN
C14 C14
4700pF/50V/X7R 4700pF/50V/X7R
Q2 Q2 C9 C9
NPN_3DG3904M NPN_3DG3904M 220pF/50V/X7R 220pF/50V/X7R
EN
C7 C7
0.1uF/16V/X7R 0.1uF/16V/X7R
R4 R4
47K 47K
C12 C12
4700pF/50V/X7R 4700pF/50V/X7R
C10 C10
220pF/50V/X7R 220pF/50V/X7R
EN
C8 C8
0.1uF/16V/X7R 0.1uF/16V/X7R
R5 R5
47K 47K
C26 C26
4700pF/50V/X7R 4700pF/50V/X7R
C11 C11
220pF/50V/X7R 220pF/50V/X7R
U5 U5
AS5422A AS5422A
+12V
1
BS
2
IN
R7 R7 100K 100K 7
EN
RESET_
RESET_ 9
C28 C28
4.7uF/16V/Y5V 4.7uF/16V/Y5V 0.1uF/16V/X7R 0.1uF/16V/X7R
B
C
U4 U4
G5175 G5175
26 25
VIN GND
18 29
MODE EP
VCC
28 27
EN V33P
C2 C2
3.3V_STBY 2.2uF/10V/Y5V 2.2uF/10V/Y5V
2 1
PGOOD V33
C3 C3
2.2uF/10V/Y5V 2.2uF/10V/Y5V
LDO(0.15A) LDO(0.15A) VCC
8 4
EN1 PVCC1_1
5
PVCC1_2
3
BS1
C34 C34
10uF/10V/Y5V 10uF/10V/Y5V
C19 C19 1.2V
9 0.1uF/16V/X7R 0.1uF/16V/X7R
SS1
10 6 L1 L1 2.2uH/3A 2.2uH/3A
COMP1 LX1_1
7
LX1_2
C20 C20 R6 R6 C23 C23
10uF/10V/Y5V 10uF/10V/Y5V 2K/1% 2K/1% 10uF/10V/Y5V 10uF/10V/Y5V
11
FB1
R8 R8
VCC 10K/1% 10K/1%
BUCK1(2A) BUCK1(2A)
15 16
EN2 PVCC2
C43 C43
10uF/10V/Y5V 10uF/10V/Y5V
3.3V
14
SS2
13 17
L2 L2 2.2uH/3A 2.2uH/3A
COMP2 LX2
C21 C21 R10 R10 C24 C24
10uF/10V/Y5V 10uF/10V/Y5V 47K/1% 47K/1% 10uF/10V/Y5V 10uF/10V/Y5V
12
FB2
R11 R11 20K/1% 20K/1%
BUCK2(1A) BUCK2(1A) VCC
R12 R12 1K/1% 1K/1%
21 20
EN3 PVCC3
C44 C44
10uF/10V/Y5V 10uF/10V/Y5V
1.5V
22
SS3
23 19
L4 L4 2.2uH/3A 2.2uH/3A
COMP3 LX3
C22 C22 R13 R13 C25 C25
10uF/10V/Y5V 10uF/10V/Y5V 10K/1% 10K/1% 10uF/10V/Y5V 10uF/10V/Y5V
24
FB3
R14 R14
BUCK3(1A) BUCK3(1A) 20K/1% 20K/1%
C31 C31 0.01uF/25V/Y5V 0.01uF/25V/Y5V
VCC
3 L5 L5 6.8uH/2.4A 6.8uH/2.4A
SW
5 R9 R9
FB
68K 68K
6
COMP
C33 C33 C27 C27 R15 R15
3900pF/50V/X7R 3900pF/50V/X7R 10uF/10V/Y5V 10uF/10V/Y5V 15K/1% 15K/1%
R16 R16
C29 C29 6.8K 6.8K
C
7-4
D E
1.2V +12V +12V VCC
U10 U10
R298 R298 R300 R300 P_AP4953 P_AP4953
1K 1K 20K 20K 1 8
S1 D1
2 7
G1 D1
3 6
S2 D2
R299 R299 100K 100K 4 5
G2 D2
C300 C300
0.1uF/16V/X7R 0.1uF/16V/X7R
R18 R18 NC/0 NC/0
Q5 Q5
NPN_3DG3904M NPN_3DG3904M
R297 R297 C302 C302
10K 10K
0.1uF/16V/X7R 0.1uF/16V/X7R VCC VCC_D
S D
Q6 Q6
NC/P_AO3401A NC/P_AO3401A
D E
1
2
3
VCC_D
+12V_D
C317 C317
0.1uF/16V/X7R 0.1uF/16V/X7R
4