Philips 48OLED935/12 Service Manual page 59

9-3-8 DCDC-SYSTEM-POWER1
D C P O W E R I N P U T
CN1190
NC/0R05 OHM R4378
+3V5-SB 1 2
3 4
Main_12V
5 6
Main_12V
AU_12V 7 8
9 10
11 12
POWER-ON OPWRSB_N 13 14
15 16
BL-DIM1 100 OHM R4316
CONN
T o P S U
S T A N D B Y P O W E R + 3 V 3 - S T A N D B Y
0 . 6 ( 1 + 1 0 0 / 2 2 ) x = 3 . 3 2 V
3V3SB-SOC +3V3-STANDBY
R4338 R4327
0R05 1/10W 0R05 1/10W
ZD4301
MM3Z3V6B-HAF
C4317 C4313 R4308
10UF 6.3V 10UF 6.3V 100K 1%
R4315
22K 1%
1 2 V d r o p d e t e c t
+12V-AUDIO +12V
R4348 R4349
NC/22K 1/16W 10K
1
R4352 BTA1576S3
+3V3-STANDBY
110K 1% Q4303
R4355 R4357
22K
12V-DETECT
R4359 0R05 OHM
100K
Main_12V
R4341
0R05 1/4W
+5V-STANDBY
R4336
8
NC/0R05 1/4W
C4324 C4341 C4327 C4342 C4343 C4371
3
7
R4350
100K
OPWRSB_N R4371 PWR_EN
0R05 OHM
14
R4373
NC/10K 1/16W C4372
100NF 16V
+3V3-STANDBY
RLZ15B
ZD4302
Main_12V C4306 100NF 16V
R4309
Main_12V
AU_12V C4307 100NF 16V
4K7 5%
R4320
4.7K
STANDBY Q4301
MMBT3904
R4324
47K
+3V3-STANDBY
R4328
0R05 OHM
+5V-STANDBY
R4301
NC/0R05 OHM
C4355 C4357
100NF 16V 100NF 16V
U4304 U4301
SY 8089AAAC SY8088IAAC
3 4 4 3
LX IN IN LX
L4302 2 2
GND GND
1 5 5 1
2.2uH
EN FB FB EN
C4316
47PF 50V
+ 1 V 8 o m F r + 3 V 3
AZ1117CH-1.8TRG1
+3V3 +1V8-EMMC-IO
U4305
3 2
VIN VOUT
C4344
C4356
10UF 6.3V
10UF 6.3V
1 0 A D C / D C
Vout=0.6x (1+21K/30K) =
1.02V for VCCK
U4303
R4339
2
C4370
VIN BST
0R05 100NF 16V
MP8771GQ
L4303
16
SW
0.33uH 20%
1
NC1
R4356
15 100R 1%
EN NC2
PG
R4369
1K OHM 1%
4
FB
C4368 R4370
6
1nF 50V 20K 1%
VCC SS
R4351
1K 1%
R4372
30K 1%
P o w e r o n s e q u e n c e c o n t r o l
R4322
OPWRSB_N TRIG_NORMAL_PWR
VCCK
NC/0R05 OHM
R4323
C4301 TRIG_NORMAL_PWR
1uF 10V 0R05 OHM
R4325
NC/100K 1/16W 5%
A V D D 1 0 5 _ S T B F R O M + 5 V - S T A N D B Y
0 . 6 x ( 1 + 7 5 / 1 0 0 ) = 1 . 0 5 V
AVDD105_STB
R4330
L4301
1uH 0R05 1/10W
C4314 R4302 C4312 ZD4303
22PF 50V 75K 1% 10UF 6.3V MMSZ4678
R4314
100K 1%
O P W R S B _ P W R > + 1 2 V = 3 m s
P O W E R - O N
Normal:High
Stand_By:Low
TRIG_NORMAL_PWR
C P U C a p a c i t o r s
CPU_GPU_P
B o t t o m s i d e o f M a i n C h i p
CM75 CM56 CM45
10UF 6.3V 1uF 10V 1uF 10V
VCCK
ZD4305
MMSZ4678
R4340
0R05 1/10W
OPWRSB_N
+12V +12V-AMBI
FB4323
1 2
NC/120R 3A
Main_12V +12V
FB4324
AU_12V
NC/120R/3000mA
1 2
Q4304
8 1
D D
7 2
D D
6 3
D D
5 4
S G
AON4421 + C4305
NC/220UF 16V C4315
C4303
100NF 16V
1UF 25V
R4317 R4304 R4377
10K 5% 22K 10K 5%
P O W E R - O N
Normal:High
R4321 R4384
Stand_By:Low
5K1 5% 5K1 5%
Q4305
R4305 AO3414 TRIG_NORMAL_PWR R4347
10K 5% 10K 5%
P_SCL
R4395
NC/3.3K
CM67 CM74 CM90 CM91
2.2UF 6.3V 2.2UF 6.3V 1uF 10V 1uF 10V P_SDA
R4396
NC/3.3K
CM46 CM105 CM106
100NF 16V 22UF 6.3V
10UF 6.3V
V C C K C a p a c i t o r s
VCCK B o t t o m s i d e o f M a i n C h i p
CM42 CM38 CM60 CM70 CM44 CM43
10uF 6.3V 1uF 10V 1uF 10V 1uF 10V 1uF 10V 1uF 10V
CM86 CM1
2.2UF 6.3V 2.2UF 6.3V
12V-DETECT
12V-DETECT 12,16
BL-DIM1
BL-DIM1 16
STANDBY
STANDBY 2
SCL-STB
SCL-STB 2,7,11
SDA-STB
SDA-STB 2,7,11
LED-PWM1
LED-PWM0 LED-PWM1 2,16
LED-PWM0 2,16
OPWRSB_N 11
FB4325
+12V-AUDIO
NC/120R/3000mA
1 2
R4303
10KOHM
Q4306
8 1
D D
7 2
D D
6 3
D D
5 4
S G
AON4421
C4304
1UF 50V
R4326
22K
Q4307
AO3414
R4379
NC/0R05 OHM
Q4311
2 NC/2N7002KW 3
SCL-STB
R4394
NC/0R05 OHM
Q4312
2 NC/2N7002KW 3
SDA-STB
+3V3-AVDD
CM87
1uF 10V
CM21
1uF 10V