715G8251 Ssb - Philips 32PHG5102/77 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
4 3
+12V 6 5 +12V
8 7
12V_Amp
10 9
12 11
C747
14 13 PS_ON_PRE
100NF 16V
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 10UF 16V 1
2 EN
For EMI
FB
3
VREG5
4
SS
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
100N 16V 10uF 16V
U705
R701 9 L702
1 GND 8
PS_ON_PRE 0R05 1/16W C731 3.3uH 30mOHM 6A
EN VIN
2 7
100N 16V
FB BOOT
3 6
VREG5 SW
4 5
(650KHz)
SS GND
RT6206BHGSP
C733
C736
8.2NF 50V
0R05 1/16W
Vout=0.765x (1+6.8K/12K) =1.203V
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
3V3SB
1 2
R703
NC FB340M 4K7 1/16W 5%
R705
PS_ON_PRE OPWRSB
100R 1/16W 5%
R708
NC 22K 1/16W 5%
BL_ON/OFF:
Inverter on: High
Inverter off: Low
R722
BL_ON/OFF
0R05 1/16W
R718
4K7 1/16W 5%
L701
3.3UH
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%
RT6206BHGSP
R727
22K 1%
Vout=0.765x (1+124K/22K) = 5.07V
+12V
FB708
1 2
120R 3A
C729 C730
10uF 16V
VCCK AVDD1V2
FB709
120R 3A
1 2
R737
6K8 1%
C741
22P 50V
R738
R742
12K 1%
R1072
NC 0R05
Wi-Fi_VCC
RT9048GSP
R1071
4 5
0R05 OHM
NC NC
3 6
VIN VOUT
2 7
EN ADJ
1 8
NC GND
9
GND
C750 C752 C753 C754
10UF 10V 22UF 10V 10UF 10V
U710 100NF 16V
R747
330R 1% R748
13K 1% R749
120K 1%
Vout=0.5x (1+R1/R2)
OPWRSB:
(+5V_SW ON/OFF):
Normal: High
Norm al: High
Stand_by:
Stand_By: Low
Low
R711
VCCK
1K 1/10W
C703
100nF 50V
5VSB
R713
0R05 1/10W
C704
1uF 10V
+5V_SW
R723
FB704
5VSB 0R05 1/10W
1 2
C710 C711
120R 6A
100NF 16V 10uF 16V
+5V to 1.8V FOR EMMC
DVDD3V3
U704
AZ1117CD-1.8TRG1
3 2
IN OUT
DRAM Power
STB_PWR 5VSB +5V_SW
D704 D701
NC FB340M
FB340M
3V3SB
C742
R734
100NF 16V
4.7K1/16W
FB_PWR_EN
H:ENABLE FB
L:DISABLE FB
OPWRSB
+5V_SW
5VSB BL_ADJ
BL_ON/OFF
+ C701
Q702
220UF 16V FB_PWR_EN
R704
10K 1/10W 1 8
2 D D 7
D D 7
3 6
D D
4 5
5VSB
G S VCCK
R707
47K 1/10W 5% R709
AON4421
AVDD1V2
C702 100K 1/10W
Q703 100nF 50V
+5V_SW
BC847N3
3V3SB
AVDD3V3
DVDD3V3
+1.8V
DDRV
3V3SB
U701 Wi-Fi_PWR_EN
3 2 1 2
VIN VOUT Wi-Fi_VCC
FB701
C706 120R 3A
C705
100NF 16V 10uF 16V
AP1117E33L-13-77
FB702
120R 3A
1 2
AVDD3V3
FB703
U702 120R 3A
AZ1084CS2-3.3TRG1
3 2 1 2 DVDD3V3
VIN VOUT
+ C709 ZD701
BZT52-B3V6
C712 100NF 16V
100UF 16V
12V drop detect (3/18)
12V_Amp +12V
Low drop detect
R725 R726
22K 1% NC/22K 1%
3V3SB
+1.8V Q706
BTA1576S3
R728 R731
15K 1%
22K 1%
LT: D704 NC
AP: D701, D702 NC
DDRV
D702
FB340M
U706
L703
1 5
VIN LX
2
2.2uH
GND
3 4
C743
EN VFB
R736 C732 C734
10uF 16V 15K 1%
G5695T11U
10UF 6.3V 20% NC/100N 16V
R739
C749
NC 10UF 10V 0R05 1/16W
R741
Add by 0321 10K 0.5% 1/16W
Vout = 0.6x(1+R1/R2)1.5V
Vout = 0.6*(1+15/10)=1.5V
OPWRSB 5
BL_ADJ 7,8
BL_ON/OFF 7
OPCTRL12 7
12V-DETECT
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
R733
100K 1/16W 5%
H:NORMAL
L:12V DROP