B 715G8251Ssb - Philips 5102 Series Service Manual

8.3 B 715G8251SSB

8-3-1 POWER SYSTEM
STB_PWR
CN701
STB_PWR STB_PWR
12V_AL 12V_AL
12V_Amp 2 1 1
4 3
+12V 6 5 +12V
8 7
12V_Amp
10 9
C747 12 11
14 13
100NF 16V PS_ON_PRE
BL_ON/OFF_PRE 16 15 BL_ADJ_PRE
D703 FOR AP REGION USED
Add by 0321 CONN
For EMI
BRIGHT ADJUST BL_ON/OFF
BL_DIMMING
Max:+3V3
Min: 0V
R720
0R05 1/16W
BL_ADJ_PRE BL_ADJ BL_ON/OFF_PRE
R714
C707 4.7K1/16W
NC 10UF 16V
+12V to 5VSB
FB705
1 2
+12V
120R 6A
C748
100NF 16V C720 U703
C719 100NF 16V
Add by 0321 1
10UF 16V
EN
2
For EMI
FB
3
VREG5
4
SS
RT6206BHGSP
C721
8.2NF 50V
+12V R730 100K 1/16W 5%
C722
1UF 16V
R732 C727
NC 22K 1/16W 5% 1UF 16V
12V to Core Power
C728 C729
100N 16V 10uF 16V
U705
9
R701 L702
GND
PS_ON_PRE 0R05 1/16W 1 8 C731 3.3uH 30mOHM 6A
2 EN VIN 7
100N 16V
FB BOOT
3 6
VREG5 SW
4 5 (650KHz)
SS GND
RT6206BHGSP
C733 6K8 1%
C736
8.2NF 50V
R738
0R05 1/16W
Vout=0.765x (1+6.8K/12K) =1.203V
R742
12K 1%
R1070
NC 0R05 OHM
STB_PWR
5VSB
R1068
0R05 OHM
R744
10K 1/10W 5%
Wi-Fi_PWR_EN
R745
10K 1/16W 5%
R746
10K 1/10W 5%
3V3SB
D703 OPWRSB:
3V3SB
Normal: High
2
Stand_by:
R703 Low
NC FB340M 4K7 1/16W 5%
R705
PS_ON_PRE 100R 1/16W 5% OPWRSB
R708
NC 22K 1/16W 5%
BL_ON/OFF:
Inverter on: High
Inverter off: Low
R722
0R05 1/16W BL_ON/OFF
R718
4K7 1/16W 5%
FB704
L701
1
3.3UH 120R 6A
C714 C716
9
C713 100NF 16V 10UF 10V
GND
8
100NF 16V
VIN
7 C715 C717
BOOT
6
C718 10UF 10V 10UF 10V
SW
5
R724 22PF 50V
GND
124K 1%
R727
22K 1%
Vout=0.765x (1+124K/22K) = 5.07V
+12V
FB708
1 2
120R 3A
C730
10uF 16V
VCCK AVDD1V2
FB709
120R 3A
1 2
R737
C741
22P 50V
R1072
NC 0R05
Wi-Fi_VCC
RT9048GSP
R1071
4 5
0R05 OHM
3 NC NC 6
VIN VOUT
2 7
EN ADJ
1 8
NC GND 9
GND
C750 C752 C753 C754
22UF 10V
10UF 10V U710 10UF 10V 100NF 16V
R747
330R 1% R748
13K 1% R749
120K 1%
Vout=0.5x (1+R1/R2)
5VSB
(+5V_SW ON/OFF):
Norm al: High
R704
Stand_By: Low
10K 1/10W
R711
VCCK Q703
BC847N3
1K 1/10W
C703
100nF 50V
5VSB
U701
R713
0R05 1/10W 3
VIN
C704
1uF 10V
AP1117E33L-13-77
+5V_SW
U702
R723 AZ1084CS2-3.3TRG1
5VSB 0R05 1/10W 3
VIN VOUT
2
C710 C711
100NF 16V 10uF 16V
100UF 16V
+5V to 1.8V FOR EMMC
DVDD3V3
+1.8V
U704
AZ1117CD-1.8TRG1
3 2
IN OUT
DRAM Power
LT: D704 NC
STB_PWR 5VSB +5V_SW
AP: D701, D702 NC
D704 D701 D702
NC FB340M
FB340M FB340M
3V3SB
C742 C743
R734
100NF 16V 10uF 16V
4.7K1/16W
FB_PWR_EN
H:ENABLE FB
L:DISABLE FB
Add by 0321
Vout = 0.6*(1+15/10)=1.5V
OPWRSB
+5V_SW
BL_ADJ
BL_ON/OFF
+ C701
Q702
220UF 16V FB_PWR_EN
1 8
D D
2 7
D D 7 12V-DETECT
3 6
D D
4 5 5VSB
G S VCCK
R707
47K 1/10W 5% R709
AON4421
AVDD1V2
C702 100K 1/10W
100nF 50V
+5V_SW
3V3SB
AVDD3V3
DVDD3V3
+1.8V
DDRV
3V3SB
Wi-Fi_PWR_EN
2 1 2
VOUT Wi-Fi_VCC
FB701
C706 120R 3A
C705
100NF 16V 10uF 16V
FB702
120R 3A
1 2
AVDD3V3
FB703
120R 3A
2 1 2 DVDD3V3
+ C709 ZD701
BZT52-B3V6
C712 100NF 16V
12V drop detect (3/18)
12V_Amp +12V
Low drop detect
R725 R726
22K 1% NC/22K 1%
3V3SB
Q706
BTA1576S3
R728 R731
15K 1%
22K 1%
R733
100K 1/16W 5%
DDRV
U706
L703
1 5
2 VIN LX
2.2uH
GND
3 4
EN VFB
R736 C732 C734
15K 1%
G5695T11U
10UF 6.3V 20% NC/100N 16V
R739
C749
NC 10UF 10V 0R05 1/16W
R741
10K 0.5% 1/16W
Vout = 0.6x(1+R1/R2)1.5V
OPWRSB 5
BL_ADJ 7,8
BL_ON/OFF 7
OPCTRL12 7
12V-DETECT
VCCK 5
AVDD1V2 5
+5V_SW 5
3V3SB 5
AVDD3V3 5
DVDD3V3 5
+1.8V 5
DDRV 5
Wi-Fi_PWR_EN 5
Wi-Fi_VCC 5
R729
12V-DETECT
0R05 1/16W
H:NORMAL
L:12V DROP