LG 55LV355C-UA Service Manual page 30

FROM LIPS & POWER B/D
+3.5V_ST
RT1P141C-T112
Q402
R406 3
1
4.7K OPT
R401 C
P403
2
RL_ON 10K FW20020-24S
B Q401
2SC3052
E L404-*1
PWR ON
1 2
1 1 2 2
CIS21J121
24V
3 3 3 4 4 4
GND
a_BEAD_MAG
+3.5V_ST 5 5 5 6 6 6
L404
GND
MLB-201209-0120P-N2 7 7 7 8 8 8
3.5V
9 9 9 10 10 10
3.5V
11 11 11 12 12 12
C401 C406 C408
GND
100uF 13 13 13 14 14 14
0 . 1 u F 0 . 1 u F
16V GND
16V 16V 15 15 15 16 16 16
OPT 12V
17 17 17 18 18 18
12V
19 19 19 20 20 20
a_BEAD_MAG
+12V/+15V 12V
21 21 21 22 22 22
L402
GND/P.DIM2
23 23 23 24 24 24
MLB-201209-0120P-N2
C404 C407
C402 25 25
0 . 1 u F 0 . 1 u F
100uF
16V
OPT
P401
L402-*1 SMAW200-H24S2
CIS21J121
Debug
OPT
P1101
12507WR-06L
004:A26;005:AL19
1
RL_ON
004:V23;005:AL16;019:D25
2 POWER_ON/OFF1
0 0 4 : I 5 ; 0 0 4 : U 9 ; 0 0 4 : A D 4 ; 0 0 5 : S 1 7
3 POWER_ON/OFF2_1
004:AJ21;004:AK14;005:AB8
4
POWER_ON/OFF2_2
0 0 4 : Q 2 5 ; 0 0 5 : C 1 0 ; 0 0 5 : S 1 5
5 PANEL_CTL
0 0 4 : N 2 2 ; 0 0 5 : S 1 6
6
INV_CTL
7
+5V_USB
+12V/+15V
IC401
AOZ1073AIL-3
PGND LX_2
1 8
NR8040T3R6N
VIN LX_1
2 7
C489
0 . 1 u F 3A
AGND EN POWER_ON/OFF2_1
16V
3 6
R410
C405 C410
10K
10uF
10uF FB COMP
25V 4 5
25V
12K
R413
Vout=(1+R1/R2)*0.8
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
©
Copyrigh t
+12V/+15V
L407-*1
CIS21J121
OPT
P404
+24V
FM20020-24
a_BEAD_MAG
L407
24V
MLB-201209-0120P-N2
24V
GND
C418
C426
GND
0 . 1 u F 68uF
3.5V 50V 35V
3.5V
PANEL_CTL
GND
GND/V-sync 0 0 4 : E 1 2 ; 0 0 5 : C 1 0 ; 0 0 5 : S 1 5
INV_CTL1
INV ON
A.DIM
+3.3V_Normal
P.DIM1
Err OUT
+3.5V_ST
R419
1K
R415
100 R426
OPT
10K
R425
100
C
R418 R421
OPT INV_CTL
B 10K
6.8K
OPT Q405
+3.5V_ST
E 2SC3052 R427
10K
OPT OPT
0
R451
OPT
R485 0
A_DIM
OPT
0
R453
OPT
OPT R484 PWM_DIM
0
R472 0
R471 0
R606
OPT C416 3.9K
0 . 1 u F OPT
16V
+3.3V_Normal
OPT
R437 100
OPT ERROR_OUT
R420 100
TP5303 V_SYNC
TP5304
SCAN_BLK2
SCAN_BLK1/OPC_OUT
TP5305
+5V_USB
+3.5V_ST
2000 mA
L406
3.6uH
OPT
C429 C428
C420 C424
R1
100pF 22uF 0 . 1 u F 0 . 1 u F
50V 16V
16V 16V
OPT
2200pF
C413
R2
PANEL_POWER
C442
C409 C438
10uF
C436 0 . 1 u F New item
0 . 0 1 5 u F
0 . 0 1 u F 16V
50V 16V
25V
OPT Q409
AO3407A
C443
10uF
G
25V
R431 C451
22K 0 . 1 u F
50V
1608
OPT
OPT C
R430
10K B Q407
2SC3052
C
R429 E
R435
47K
B Q406 22K
2SC3052
E
S7M DDR 1.5V
POWER_ON/OFF1
C475
0 . 1 u F
16V C462
0 . 1 u F
16V
L420
L423
3.6uH
VIN_1 PH_3
1 12
THERMAL
NR8040T3R6N
VIN_2 PH_2
2 17 11
C461 C468
10uF 0 . 1 u F C472 C476
GND_1 PH_1
3 IC407 10
22uF 22uF
10V 16V
TPS54319TRE C465 10V 10V
GND_2 SS/TR
4 9
0 . 0 1 u F
50V
R1
R452
1/16W 330K 5%
R455 C467
15K 4700pF
1/16W 5% 50V
R2
R449
56K
3A 1/16W
1%
$ 0 . 1 4 5
Vout=0.827*(1+R1/R2)=1.521V
+2.5V/+1.8V
+3.3V_Normal
IC402
+2.5V_Normal
AZ2940D-2.5TRE1
VIN VOUT
1 3
Vd=550mV
2
GND
C432
0 . 1 u F
16V
C403 C440
10uF
0 . 1 u F
10V
16V
S 7 M c o r e 1 . 2 6 V v o l t
POWER_ON/OFF2_1
C447
0 . 1 u F
16V
C441
0 . 1 u F
16V
L413
L415
3.6uH
VIN_1 PH_3
1 12
THERMAL
VIN_2 PH_2 NR8040T3R6N
2 17 11
C430 C431
C453 C456
10uF
0 . 1 u F GND_1 PH_1
3 IC403 10
22uF 22uF
10V 16V
SN1007054RTER C488 10V 10V
GND_2 SS
4 9
0 . 0 1 u F
50V
R1
R432
1/16W 330K 5%
R436 C448
3300pF
7.5K
1/16W 5% 50V
R2
R441
75K
4A
$ 0 . 1 6 5
1/8W
1%
Vout=0.8*(1+R1/R2)=1.29V
S T _ 3 . 5 V - - > 3 . 3 7 5 V - - > 3 . 4 6 V
2 0 V - - > 3 . 5 1 V - - > 3 . 7 6 V ( 3 . 5 9 V )
+12V/+15V
2 4 V - - > 3 . 7 8 V - - > 3 . 9 2 V ( 3 . 7 9 V )
1 2 V - - > 3 . 5 8 V - - > 3 . 8 2 V ( 3 . 6 8 V )
1 8 . 5 V - - > 3 . 5 V - - > 3 . 7 5 V ( 3 . 5 9 V )
C411
PANEL_VCC 0 . 1 u F
16V
+24V
R407
R405
C455
2.2K 2.2K
0 . 1 u F
C412
16V
0 . 1 u F
16V
+3.3V_Normal
1074 mA
+12V/+15V
AOZ1073AIL-3
+1.5V_DDR
PGND
1
VIN
2
C492
0 . 1 u F
AGND
16V
3
C457 C459
10uF
10uF FB
C470 25V 4
25V
0 . 1 u F
16V
C463
100pF
50V
Vout=(1+R1/R2)*0.8
+5V_Normal
+12V/+15V
C490
0 . 1 u F
300 mA 16V
C458 C460
10uF 10uF
25V 25V
Vout=0.8*(1+R1/R2)
IC410
AP1117EG-13
IN OUT
ADJ/GND
C491
110
0 . 1 u F 330
R417
50V R411
C421,C422 Close to LDO
+1.26V_VDDC
+1.5V_DDR
Q408
C444
AO3438
0 . 1 u F
55INCH
16V
50V
100pF
OPT
C439 C435
4 . 7 u F
10V
POWER_ON/OFF2_1
+1.5V_DDR_FRC
POWER_LARGE
+ 3 . 5 V _ S T - > 3 . 3 7 5 V
+3.5V_ST
+3.5V_ST
R488
100K
IC408
NCP803SN293
R402
POWER_DET
100
VCC RESET
3 2
1
GND C474
0 . 1 u F
R404
100K
IC409
NCP803SN293
R480
100
VCC RESET
3 2
1
GND
Power_DET
+3.3V_Normal
IC405
1934 mA
L424
L421
CIC21J501NE
3.6uH
LX_2
8
NR8040T3R6N
LX_1
7
3A
EN POWER_ON/OFF2_2 C485
C469 C473
R1
6
22uF 0 . 1 u F 0 . 1 u F
R456
16V
16V 16V
10K
COMP
5
OPT
12K C423
2200pF
R454 100pF
C464
50V
R2
MAX 1A
IC406
AOZ1072AI-3
L422
3.6uH
PGND LX_2
1 8
NR8040T3R6N
VIN LX_1
2 7
2A
POWER_ON/OFF2_2
AGND EN
C471
3 6 R1
22uF
R459 C477
16V
10K
0 . 1 u F
FB COMP
16V
4 5
OPT
12K C427
2200pF
R458 100pF
C466
50V
R2
+5V_TUNER
IC411
+5V_Normal
AP1117EG-13
IN OUT
ADJ/GND
R422
1 R424
1
5%
5%
110
C414 C422
C415
R408 C417 C419
0 . 1 u F 10uF 0 . 1 u F 330
0 . 1 u F 10uF
16V 10V 50V R409
16V 10V
+1.5V_FRC_DDR
20101023
GP2R
4
LGE Internal Use Only