Philips 48OLED935/12 Service Manual page 60

9-3-9 DCDC-SYSTEM-POWER2
+ 1 2 V t o + 5 V - S W
U1701
TPS566335RJNR
+12V
R1730
0R05 1/4W
+12V
R1725
100K 5%
R1756 R1732 R1731
100 OHM C1712 NC/0R05 0R05
R1726
33K 5%
V o u t = 0 . 6 x ( 1 + 1 5 0 K / 2 0 K ) = 5 . 1 V
A M B I L I G H T P R O T E C T I O N
FB4333
F4400
1 2 1 2
120R 3A
Main_12V +12V-AMBI NC/T 2A 63V
FB4332
U4405
1 2 1 12
IN GND
120R 3A 2 11
IN OUT
3 10
NC OUT
4 9
GND OUT
5 8
C4457
SS NC
6 7
1UF 50V
EN SET
AOZ1360DIL
+3V3
R4430
10K 5%
2 S i d e d a m b i l i g h t 3 | 4 S i d e d a m b i l i g h t
U4404
F 4 4 0 0 X N A
C4457 X X
C4459 X X
C4458 X X
R4430 NA X
C4456 NA X
U4405 NA X
C4454 NA X
R4428 NA X
C1711
100N 16V
R1733
100K
1 8
IN SW
L1701
2.2uH 8.2A
12
FB
49.9 OHM 1%
7
MODE
5
EN
10
VCC
R1727
150K 1%
R1728
20K 1%
L N B P O W E R S U P P L Y
3.3NF 50V
C758
AMBI-POWER
+3V3
R777
R763
C4458 ZD4400 R769
1UF 50V
SMF12A
R4428
47K
L I N E D R O P
LO : 13V/18V
HI : 14V/19V
+5V-SW
R1723 C1720
22UF 6.3V
C1722
100PF 50V
R4051
0R05
L750
10uH SM340DT-C
+12V
C772 C776
100N 16V 10uF 16V
U751
C759
8 4
R766 0.22UF 50V
AGND PGND
11 3
60.4K 1%
BY PASS SW
12 5
+12V
VDD BST
10 6
0.1uF 25V
COMP VBOOST
LNB_EN 2 7
EN VOUT
1
NC/10K 1/16W 5% LNB_LINEDROP
LINEDROP
9
NC/10K 1/16W 5%
TCAP
13V/18V_SW 14 13
22NF 25V
13V/18V EXTM
10K 5%
G5167AT1U
R760
R768 33R 5%
100K 5%
WIFI-PWR-EN
LNB_EN
LNB_LINEDROP
13V/18V_SW
TUNER_LNB
DISEQC_OUT
TUN_LNB
+5V-STANDBY
U4250
5 1
C4297
VIN VOUT
10uF 10V 2
GND
WIFI-PWR-EN 4 3
EN OCB
APL3511ABI-TRG
R4266
R4267
4K7 5% 4K7 5%
+3V3-STANDBY
D750
1 2 VBOOST
D751
SM340DT-C
C754
C761
D752 C777
SM340DT-C 100N 50V
R773
DISEQC_OUT
3K
WIFI-PWR-EN 16
LNB_EN 6
LNB_LINEDROP 16
13V/18V_SW 6
TUNER_LNB 6
DISEQC_OUT 6
TUN_LNB 16
+5V-WIFI
FB4250
1 2
120R 3A
R4250
10K 5%
E S D Protect & S u r g e
TUNER_LNB
R4292
34.8K
R772 R771
3K 3K
TUN_LNB
R4293
4.99K 1% ZD4103
MM3Z3V6B
A d d f o r U n i c a b l e