Philips 43PUS6412/12 Service Manual page 64

8-5-14 DCDC-SYSTEM-POWER1
DC POWER INPUT
CN1190
1 2
3 4
5 6
7 8
9 10
+12V 11 12
13 14
+3V5-SB TP4306
15 16
+12V-AMBI
17 18
+12V
+12V-AUDIO 19 20
21 22
23 24
25 26
POWER-ON TP4312
27 28
BL-DIM1 100OHM1/16W R4316 TP4309
To PSU
FB4300
1 2
TP4343
NC/30R 1A
+12V
FB4301
C4327
1 2
100NF 16V
30R 1A
U4301
C4342
+5V-SW 9
22NF 25V
R4329 GND
TP4344 8 1
100OHM1/16W
SS BOOT
7 2
6 EN VIN 3
COMP SW
5 4
FB GND
TP4345 TP4341
RT7297CHZSP
0.8Vref
R4334
6.8K 1/ 16W
+1V8 From +3V3
+3V3 +1V8-EMMC-IO
U4303
R4374
9
10K+-5%1/16W
1 E-Pad 8
POK GND
2 7
TP4321
VEN ADJ
3 6
VIN VO
4 5
VPP NC
G9661
0.8Vref
C4356
C4354 TP4353
0.8V
1uF 10V
FB4306
+12V
1 2
30R 1A
R4351
+5V-SW
TP4366
1 OHM 5% 1/16W
R4354
100K 1/16W
TP4367
U4306
1
TP4368
PGOOD
2
TRIP
3
EN
4
FB
5
RF
TP4369
G5318RE1D
R4372
47K 1/16W
TP4370 0.7Vref
9/13
R4364
120K 1%
+12V FB4307
1
NC/100OHM1/16W R4347 NT-LCD-PWR-ON FB4308
TP4301
1
FB4309
+12V
TP4316 +12V 1
TP4319 NC/100OHM1/16W R4308 BL-I-CTRL +12V-AMBI
TP4315 +12V-AMBI
TP4317 +12V
+12V-AUDIO
TP4318
TP4308 100OHM1/16W R4318 BL-ON
STANDBY
+12V
TP4311
C4326
+
100UF 16V
9/13
AVDD3V3/DVDD3V3
+3V3-AVDD
C4351
100N16V
FB4302
L4300 TP4320 TP4314
1 2
3.6uH 120R 3A
TP4342
R4336
1M 1%
+3V5-SB
DRAM Power
D4301
FB340M
SUP-DDR
TP4356
+3V5-SB
C4344
10UF 6.3V
DDR-PWR-EN
TP4355
TP4365
U4305
AON7932
1 8
2 G1 G2 7
D1 S2
3 6
D1 S2
4 5
D1 S2
C4363 TP4363
11
100N16V
GND R4358
10
BST
9
10OHM1/16W
DH C4366
8
TP4364 R4360
LX
7 TP4371
VCC
6
DL
TP4373 3R3 1/16W 5% 220pF 50V
C4391
1nF 50V TP4372
C4392
470PF 50V
To create VB1 return path
+1V0-VCCK
SENSE+1V0-VCCK 14
R4363 C4371 C4370 C4359
4K7 1/ 16W 1%
100N16V 100N16V 100N16V
+3V5-SB
NC/120R/3000mA +12V-AUDIO
D4300 NC/FB340M
2 1 2
NC/120R/3000mA C4323
1 5
1UF 10V
2 2 VIN VOUT
GND
+3V5-SB 3 4
EN BP
+3V5-SB
NC/120R/3000mA
U4304
2 R4378 RT9193-33GB C4345
R4377
22NF 25V
100K 1/16W 5%
R4309 1K 1/16W
22K 1/ 16W +3V3 +3V3
TP4331
TP4313 POWER-ON R4315
R4320
TP4330 NC/10K+-5%1/16W
4.7K 1/ 16W
Q4301
MMBT3904 C4301 R4323
100N16V TP4332 NC/0R05 OHM
R4324
47K 1/ 16W
R4322 TP4333
9/3
NC/0R05 OHM
TP4334
BL-I-CTRLn 1 R1
Q4302 R2
NC/PDTC114EU
12V drop detect
+12V-AUDIO +12V
+3V3
R4348 R4349
NC/22K 1/16W 22K 1/16W
TP4360
9/22 update
TP4359
Q4303
R4352 MMBT3906
+3V3-STANDBY
15K 1%
R4355
22K 1/ 16W
TP4361
R4359
100K 1/16W
+5V-SW
D4302 R4337 100K 1/16W
FB340M
TP4357
TP4358
U4302
120R 3A
FB4303
TP4354
1 12
2 VIN SW 11
VIN SW
3 10
GND SW
4 9
GND SS/TR
C4340 C4341
100N16V 10UF 16V
TP4352
RT8079ZQW
R4342
TP4351
TP4350
100OHM1/16W
TP4349
C4346
10000pF 50V
C4347
3.3nF 50V
+1V0-VCCK From +12V TUNER VCC From +12V
+1V0-VCCK
Close to main chip
C4378 C4357 C4358
22uF 6.3V 100NF 16V 100NF 16V
+1V0-VCCK
L4302
TP4328
1uH
+
C4360 C4374 C4386 C4387 C4388
100N16V 100N16V 100N16V 100N16V 100N16V
+3V3-STANDBY
TP4325
+3V3 +5V-SW
+3V3
C4309
1UF 10V
R4312
10K+-5%1/16W
Q4300 TP4338
NC/PDTC114EU
R4319
R4317
1
NT-BL-ONn R1
0R05 OHM 100K 1/ 16W
TP4335 TP4337 R2
R4325 1%
BL-I-CTRL SOC-BL-ONn R4311
4.7K 1/ 16W
NC/1K 1/16W
TP4336 TP4339
C4337
NC/10UF 6.3V X5R +-20%
U4300
+3V3-AVDD
R4328
1 E-Pad
10K+-5%1/16W
2 POK GND
VEN ADJ
3
VIN VO
4
+5V-SW
VPP NC
G9661
C4331
C4336
1uF 10V
TP4329
12V-DETECT
10UF 6.3V
C4333 C4334
C4332 C4335
100N16V 10UF 10UF 1uF 10V
L4301 TP4346
TP4347 1.5uH
C4375 C4382 C4362
10UF 10UF 100N16V
RP4372
C4315 C4313
5 4
TP4142
+12V 6 3
7 2
NC/1nF 50V 8 1
NC/1nF 50V
NC/22R
FB4105 FB4106
30R 1A NC/30R 1A
TP4149
R4366
NC/27K 1/16W 5%
U4307
+3V3 TP4148
R4371
9
GND C4312
1 8 TP4145
EN VIN
TP4147 2 7
3 FB BOOT 6
TP4146
1K 1/16W PVCC SW
4 5
SS GND 0.1uF 25V
RT7277GSP
0.765Vref
BL ON&Dimmng Control
8,19 BL-I-CTRLn
7 SOC-BL-ONn
8 NT-BL-ONn
8,9 BL-DIM1
POWER control
17,19 12V-DETECT
19 POWER-OK
8,9,18 NT-LCD-PWR-ON
2 STANDBY
19 DDR-PWR-EN
BL-ON
18 POWER-ON
+3V3
R4321
NC/220K OHM
POWER-OK
R4326
100K 1/ 16W
1%
+1V0-AVDD From +3V3-AVDD
9
8 +1V0-AVDD
7
TP4323
6
5
0.8Vref
TP4340
Vout=0.8x(1+1.65/5.1)=1.0588V
+1V5-DDR From +5V-SW/+3V3-SB
FB4305 120R 3A
+1V5-DDR
1 2
FB4304 120R 3A
TP4324
1 2
C4377
+
NC/100UF 16V
R4339
8.2K 1%
R4341
11/25
240 OHM +-1% 1/16W
0.827Vref
TP4348
R4346
10K 1/16W
3A DC/DC
Vout=0.827x (1+8.44K/10K) = 1.525V
DV12 From +12V
TP4150
TP4143 L4103
DV12
1.5uH
C4310
+
NC/100UF 16V
22K//10K=6.875K
C4322
NC/100pF 50V
TP4144
12K//1M=11.858K
R4369
1M 1%
BL-I-CTRLn
SOC-BL-ONn
NT-BL-ONn
BL-DIM1
12V-DETECT
POWER-OK
NT-LCD-PWR-ON
STANDBY
DDR-PWR-EN
POWER-ON