Philips HTS3531/12 Service Manual page 51

7-5
A
Main Board Circuit Diagram: Power Supply
+12V: +12V(+-10%)
+5V: +5V(+-2.5%)
TO POWER BOARD
1
8
8
7 POWER_ON/OFF
7
6
6
C125 C125
5
5 0.1uF/25V/Y5V 0.1uF/25V/Y5V
4
4
3
3
2
2
1
1
XP1 XP1
8PIN/2.5mm 8PIN/2.5mm
+12V: +12V(+-10%)
+5V: +5V(+-2.5%)
2
3
4
A
B
POWER_ON/OFF
VCC
FB1 FB1 300/2A 300/2A
C1 C1
0.1uF/25V/Y5V 0.1uF/25V/Y5V
0603
R3 R3 0/NC 0/NC
Q2 Q2
PNP_MMBT8550CLT1 PNP_MMBT8550CLT1
+P12V +12V
100mA
C4 C4 R4 R4
0.1uF/25V/Y5V 0.1uF/25V/Y5V
R6 R6 4.7K 4.7K
22K 22K
R5 R5 1.3K 1.3K
D72 D72 LL4148 LL4148 EN1
PCON R9 R9 1K 1K Q3 Q3
PCON
NPN_3DG3904M NPN_3DG3904M
R10 R10 4.7K 4.7K
R74 R74 1.3K 1.3K
PNP_MMBT2907ALT1 PNP_MMBT2907ALT1
R11 R11 27K 27K Q32 Q32 +P12V
R13 R13
4.7K 4.7K
-P24V
-24V
Q5 Q5 FB4 FB4
NPN_3DG9014M NPN_3DG9014M 500/500mA 500/500mA
R434 R434 0/NC 0/NC C9 C9
0.1uF/25V/Y5V 0.1uF/25V/Y5V
VCC
D1 D1 370mA
R16 R16 4.3/2W 4.3/2W
RL207/2A/1000V RL207/2A/1000V
R17 R17
440mA
1/1W 1/1W
TR_B2
Q10 Q10
TR_B1
PNP_3CA8550D PNP_3CA8550D
DV33
R24 R24 20K/1% 20K/1%
1000pF/50V/X7R 1000pF/50V/X7R
C761 C761
+ +
CE7 CE7
220uF/16V 220uF/16V C12 C12
REGO1
0.1uF/25V/Y5V 0.1uF/25V/Y5V
R26 R26 12K/1% 12K/1%
B
C
MO_VCC
FB2 FB2
R1 R1 0/NC 0/NC 500/500mA 500/500mA
+ +
MO_VCC
CE1 CE1
Q1 Q1 47uF/16V 47uF/16V
PNP_PBSS5320T PNP_PBSS5320T
C3 C3
1uF/50V/Y5V 1uF/50V/Y5V
+12V
R2 R2
200 200
C5 C5 EN1
EN1
DV33
+ +
CE2 CE2 0.1uF/25V/Y5V 0.1uF/25V/Y5V
47uF/16V 47uF/16V R7 R7 0 0
+ +
CE3 CE3
47uF/16V 47uF/16V
FB3 FB3
500/500mA 500/500mA
+ +
CE4 CE4
47uF/16V 47uF/16V
R12 R12 0/NC 0/NC
DV33
P_ASM3403 P_ASM3403
S D
C8 C8
R8 R8 Q6 Q6
1uF/50V/Y5V 1uF/50V/Y5V
0/NC 0/NC
R15 R15 220 220
V12
MO_VCC
Q7 Q7
R650 R650
PNP_3CA8550D PNP_3CA8550D
0 NC 0 NC
+ +
R23 R23 51K/1% 51K/1% CE6 CE6 C762 C762 C11 C11
0.1uF/25V/Y5V 0.1uF/25V/Y5V
220uF/16V 220uF/16V 1000pF/50V/X7R 1000pF/50V/X7R
REGO2
R25 R25 10K/1%/NC 10K/1%/NC
C
7-5
D E
OFF-PAGE CONNECTION
URST#
URST#
AVCC
AVCC
C2 C2
0.1uF/25V/Y5V 0.1uF/25V/Y5V
RFV33
RFV33
C6 C6
0.1uF/25V/Y5V 0.1uF/25V/Y5V
89G_3V3
C7 C7
0.1uF/25V/Y5V 0.1uF/25V/Y5V
3V3
Change to PMOS ASM3403; For StandBy power
89G_3V3
RESET Circuit
R18 R18 15K/1% 15K/1% R19 R19 3.3K 3.3K R20 R20 22K 22K
URST#
R21 R21 3.3K 3.3K Q8 Q8 Q9 Q9
NPN_3DG3904M NPN_3DG3904M NPN_3DG3904M NPN_3DG3904M
Cx
+ +
R22 R22 4.7K/1% 4.7K/1% CE5 CE5
22uF/10V 22uF/10V
3V3
U20 U20
1 5
Vin Vout
2
Vss
3 4
CE NC
CE6200 CE6200
D E
1
[2]
2
TP1 TP1
R89 R89 0 0
AM_RST
C10 C10
0.1uF/25V/Y5V 0.1uF/25V/Y5V
Cx Close to IC pin
3
4