Philips 32PHD5813/55 Service Manual page 41

9-3-2 System Power 2
P a n e l V C C = 1 2 V o r 5 V
P A N E L V C C
+ 1 2 V
+ 5 V
+12V
R e s e r v e f o r r e s e t T - C o n
2017-1130
R7163
NC/360R 1/10W 5%
U710
2
RESET
3
R7164
Vcc
1
NC/390 OHM 1/10W
GND
R7166
NC/220 OHM 1/10W AZ809ANSTR-E1
R7165 C7083
NC/220 OHM 1/10W 0.1uF
LVDS_PWR_EN
L V D S _ P W R _ E N : ( T c o n 8 )
Normal:High
Stand_By:Low
L N B P O W E R S U P P L Y
DVDD3V3
R718
10K 1/16W 5%
LNB_EN
R719
NC/100K 1/16W 5%
C701 R701
L N B _ E N : 3.3NF 50V 60.4K 1%
Low: disable
High: enable
MP8126
Enable
Selection
DVDD3V3 DVDD3V3
R720 R774
10K 1/16W 5% 10K 1/16W 5%
LINEDROP 13V/18V_SW
R756
R721 NC/100K 1/16W 5%
NC/100K 1/16W 5%
1 3 / 1 8 V _ S W :
High: 18V
L I N E D R O P :
Low: 13.3/18.3V
Low: 13V
High: 14.3/19.3V
Compensation
Selection
+5V_SW +12V
F B 7 1 3 F B 7 1 4 R 7 0 2 4
N C Y e s 5 . 1 K FB713 FB714
Y e s N C 0 R
Q702
8
D D
7
D D
6
D D
5
S G
AON4421
R7022
D701 FB340M 10K 1/10W 5% C7047 1UF 16V
2 1
R7023
R7024 10K 1/10W 5%
5.1KOHM +-5% 1/10W NC/GPTS06033GC1-PB
R7027 10K 1/16W 5% Q704
BC847C
R7029 C7049
10K 1/16W 5% NC/4.7UF 10V
+12V
D703
L704 10uH
1 2
C703 C704 FB340M C705 C706
10UF 16V
100NF 25V
C702 220NF 16V
U202
8 4
AGND PGND
11 3
BY PASS SW
12 5 C708 100NF 25V
+12V
VDD BST
10 6
COMP VBOOST
2 7
LNB_EN
EN VOUT
LINEDROP 1
LINEDROP
9
C709 22NF 25V
TCAP
13V/18V_SW 14 13
13V/18V EXTM
MP8124GD Z
R702 R703
R704
DISEQC_OUT
NC/100K 1/16W 5%
NC/100K 1/16W 5%
33 OHM 1/16W
R705
100K 1%
PANEL_VCC
U S B P O W E R
+12V
1
2
3
4
C7046
R758
+
0R05 C751
10UF 25V
LED701
R7030
NC/4K7 +-5% 1/8W
V o u t = 0 . 6 V ⊙ ( 1 + ( R 1 / R 2
))
V o u t = 0 . 6 V ⊙ ( 1 + ( 1 0 0 / 1 3 . 3
))=5.1V
C707
E S D & S u r g e
Protect
D704
FB340M
TUNER_LNB
C710 ZD701 R706 R707 ZD702 R708
D705
100NF 25V
FB340M
TUN_LNB
R709
ZD703
M o d i f y b y 1 1 / 2 6
C754 47pF 50V
R759
100K 1%
R764
U713
0R05 1/16W
SY 8234FCC
8 1
IN LX
C753 R760
7 2
100N 50V
SS BS
C755
6 3
2.2 OHM 1/10W
SGND EN
100N 50V
5 4
FB NC
C752
R757
100NF 25V 13.3K 1% R762
1 2 V d r o p d e t e c t ( 3 / 1 8 )
12V_AUDIO +12V
R7050 R7051
22K 1% NC/22K 1%
3V3SB
TP703
Q707
TP BTA1576S3
R7052 R7054
15K 1%
22K 1%
TP702
TP
V o u t = 0 . 6 x ( 1 + 1 0 0 / 1 3 ) = 5 . 2 1 V
+5V_USB
3 . 3 A
L731
4.7uH
C756 C757 C759
10UF 16V 10UF 16V 100NF 25V
R763
OPWRSB
10K 1/16W 5%
C758
10N 50V
TP701
TP
12V-DETECT
R7053
100K 1/16W 5%