47LV355T-ZC (CHASSIS:LD11U) - LG TV Service Manual (repair manual). Page 21

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THERMAL
THERMAL
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.
C462
0.1uF
16V
C432
0.1uF
16V
R452
330K
1/16W
5%
IC406
AOZ1072AI-3 
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
R480
100
PD_+12V
PANEL_VCC
TP5302
C477
0.1uF
16V
C470
0.1uF
16V
C411
0.1uF
16V
V_SYNC
R486
4.7K
OPT
Q408
AO3438
FRC
G
D
S
R440 5.6K
C405
10uF
25V
C476
22uF
10V
R455
15K
1/16W
5%
C416
0.1uF
16V
OPT
C423
100pF
50V
OPT
C413
2200pF
L422
3.6uH
NR8040T3R6N
PWM_DIM
C463
100pF
50V
C441
0.1uF
16V
R476
0
POWER_23_GND
R431
22K
R449
56K
1/16W
1%
+3.5V_ST
C427
100pF
50V
OPT
R445
10K
C407
0.1uF
16V
OPT
C430
10uF
10V
ERROR_OUT
+3.3V_Normal
+3.5V_ST
L420
A_DIM
C431
0.1uF
16V
L413
SCAN_BLK1/OPC_OUT
L417
R407
2.2K
OPT
L412
+3.3V_Normal
R462
10K
1%
C420
22uF
16V
R459
10K
R606
3.9K
PWM_PULL-DOWN_3.9K
Q402
RT1P141C-T112
1
2
3
R439
33K
C461
10uF
10V
C473
0.1uF
16V
Q409
AO3407A
G
D
S
R415
100
POWER_18_INV_CTL
R416
1.5K
1%
C455
0.1uF
16V
R485
0
POWER_22_A_DIM
R419
1K
R456
10K
Q406
2SC3052
E
B
C
R464
10K
P403
FW20020-24S
NORMAL_EXPEPT_32
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
P401
SMAW200-H24S2
SLIM_32~52
19
12V
14
GND
9
3.5V
4
24V
18
INV ON
13
GND
8
GND
3
24V
17
12V
12
3.5V
7
GND
2
24V
16
GND/V-sync
11
3.5V
6
GND
1
PWR ON
20
A.DIM
15
GND
10
3.5V
5
GND
21
12V
22
P.DIM1
23
GND/P.DIM2
24
Err OUT
25
+12V/+15V
C438
0.1uF
16V
IC401
AOZ1073AIL-3 
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
R457
47K
1%
C410
10uF
25V
R414
51K
1%
R404
100K
PD_+12V
POWER_ON/OFF2_2
INV_CTL
POWER_ON/OFF2_1
+24V
C451
0.1uF
50V
OPT
1608
R443
10K
FRC
C428
0.1uF
16V
OPT
C408
0.1uF
16V
OPT
R488
100K
L416
TP5305
+12V/+15V
POWER_DET
Q401
2SC3052
E
B
C
R461
4.7K
1%
POWER_ON/OFF2_2
PANEL_CTL
1:AK10
OPC_OUT
+12V/+15V
R401
10K
L415
3.6uH
NR8040T3R6N
C440
0.1uF
16V
C401
100uF
16V
R427
10K
OPT
R463
10K
OPT
0
R484
POWER_20_PWM_DIM
C474
0.1uF
R475
0
POWER_24_GND
R460
27K
1%
R406
4.7K
+2.5V_Normal
C453
22uF
10V
POWER_ON/OFF1
R458
12K
+1.5V_FRC_DDR
C468
0.1uF
16V
C445
4.7uF
OPT
TP5304
SCAN_BLK2
C435
4.7uF
10V
OPT
L423
3.6uH
NR8040T3R6N
+12V/+15V
+3.5V_ST
C406
0.1uF
16V
C444
0.1uF
16V
R405
2.2K
OPT
POWER_ON/OFF2_1
C472
22uF
10V
+3.5V_ST
R426
10K
OPT
R434
120K
OPT
R436
7.5K
1/16W
5%
R473
1
R432
330K
1/16W
5%
OLP
C475
0.1uF
16V
L404
MLB-201209-0120P-N2
C404
0.1uF
16V
R467
10K
1%
C439
100pF
50V
L401
C467
4700pF
50V
+24V
+3.5V_ST
R444
22K
1
%
+5V_USB
+3.3V_Normal
R410
10K
C412
0.1uF
16V
PD_+12V
RL_ON
+1.5V_DDR
L424
CIC21J501NE
R453
0
POWER_20_A_DIM
+3.5V_ST
+12V/+15V
TP5303
C448
3300pF
50V
Q407
2SC3052
E
B
C
L407
MLB-201209-0120P-N2
+3.3V_Normal
100
R437
POWER_20_ERROR_OUT
R451
0
POWER_18_A_DIM
+3.5V_ST
POWER_ON/OFF2_1
R421
10K
R442
24K
1%
C403
10uF
10V
C402
100uF
16V
P404
FM20020-24
NORMAL_32
19
14
9
4
18
13
8
3
17
12
7
2
16
11
6
1
20
15
10
5
21
22
23
24
25
C442
10uF
16V
OPT
R425
100
POWER_24_INV_CTL
0
R471
POWER_22_PWM_DIM
C426
68uF
35V
R402
100
C436
0.01uF
25V
0.01uF
L406
3.6uH
NR8040T3R6N
R412
0
POWER_16_GND
+12V/+15V
C424
0.1uF
16V
R429
47K
C485
0.1uF
16V
IC402
AZ2940D-2.5TRE1
2
GND
3
VOUT
1
VIN
R441
75K
1/8W
1%
Q405
2SC3052
E
B
C
R430
10K
OPT
+1.26V_VDDC
C418
0.1uF
50V
R435
22K
L421
3.6uH
NR8040T3R6N
R423
10K
1%
R418
6.8K
OPT
C447
0.1uF
16V
IC405
AOZ1073AIL-3 
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
C456
22uF
10V
0
R472
POWER_24_PWM_DIM
100
R420
POWER_24_ERROR_OUT
+1.5V_DDR
C429
100pF
50V
OPT
TP5306
C466
2200pF
IC409
NCP803SN293
PD_+12V_PWR_DET_ON_SEMI
1
GND
3
VCC
2
RESET
IC408
NCP803SN293
PWR_DET_ON_SEMI
1
GND
3
VCC
2
RESET
IC407
TPS54319TRE
1
VIN_1
3
GND_1
7
COMP
9
SS/TR
10
PH_1
11
PH_2
12
PH_3
13
BOOT
14
PWRGD
15
EN
16
VIN_3
5
AGND
8
RT/CLK
6
VSENSE
4
GND_2
2
VIN_2
17
EP[GND]
R450
0
5%
PD_+3.5V
R482
8.2K
1%
POWER_+24V
R403
1.5K
1%
POWER_+24V
C465
0.01uF
50V
C488
0.01uF
50V
L402
MLB-201209-0120P-N2
L402-*1
CIS21J121
L404-*1
CIS21J121
L407-*1
CIS21J121
R448
2.7K
1%
PD_+12V
R447
1.21K
1/10W
1%
PD_+12V
C443
10uF
25V
C457
10uF
25V
C458
10uF
25V
C459
10uF
25V
C460
10uF
25V
C409
0.015uF
50V
0.015uF
R454
12K
R413
12K
C469
22uF
16V
C464
2200pF
IC403
SN1007054RTER
1
VIN_1
3
GND_1
7
COMP
9
SS
10
PH_1
11
PH_2
12
PH_3
13
BOOT
14
PWRGD
15
EN
16
VIN_3
5
AGND
8
RT/CLK
6
VSENSE
4
GND_2
2
VIN_2
17
EP[GND]
R606-*1
1K
PWM_PULL-DOWN_1K
R465
24K
1%
R466
51K
1%
C471
22uF
16V
R424
1
5%
IC410
AP1117EG-13 
ADJ/GND
OUT
IN
+5V_Normal
IC411
AP1117EG-13 
ADJ/GND
OUT
IN
R422
1
5%
C417
0.1uF
16V
R408
110
C414
0.1uF
16V
R417
110
C491
0.1uF
50V
C422
0.1uF
50V
C415
10uF
10V
C419
10uF
10V
R409
330
R411
330
C489
0.1uF
16V
C490
0.1uF
16V
+5V_TUNER
C492
0.1uF
16V
R405-*1
3K
PANEL_DISCHARGE_RES
R407-*1
3K
PANEL_DISCHARGE_RES
16
R1
PIN No
LGD edge led error-out use or not? checking is necessary...
INV_ON
New item
26/32/52:GND
24V-->3.78V --> 3.92V (3.79V)
2000 mA
INV_ON
26/32/52:PWM
NC
CMO10"LED
NC
GND
err_out
(PSU)
Vout=(1+R1/R2)*0.8
3A
NC
GND
<LED MODULE PIN MAP -> latest update 20100618>
$ 0.145
err_out
23
GND
GND
18.5V-->3.5V --> 3.75V (3.59V)
NC
SHARP
err_out
INV_ON
err_out
AUO 10"Lamp
NC
4A
INV_ON
A-DIM
MAX 1A
Vout=0.8*(1+R1/R2)
LGD LPB/ 
+3.5V_ST -> 3.375V
23
<MODULE PIN MAP>
INV_ON
GND
+3.3V_Normal
or LIPS
PANEL_POWER
NC
CMO10"Lamp
+5V_Normal
S7M DDR 1.5V
26/32HD:NC
S7M core 1.26V volt
(PSU)
NC
INV_ON
Err_out
PWM_DIM
NC
22
(PSU)
OS LPB
(PSU)
24
AUO 10"LED
18
2A
32LE5300-TA
1934 mA
32LE4500-TA
LGD(PSU)
NC
R1
VBR-A
(PSU)
NC
Err_out
GND
PWM_DIM
20
NC
20V-->3.51V --> 3.76V (3.59V)
60:PWM
INV_ON
300 mA
PWM_DIM
GND
PWM_DIM
NC
INV_ON
Vout=0.8*(1+R1/R2)=1.29V
PWM_DIM
Err_out
LGD 10"LED
12V -->3.58V --> 3.82V (3.68V)
R1
52/60:ERROR
R2
R2
GND
--> NC
GND
ST_3.5V--> 3.375V --> 3.46V
+5V_USB
R2
NC
20
3A
32LE5300-TA
22
$ 0.165
--> NC
IPS-@
16
--> NC
FROM LIPS & POWER B/D
60:NC
Power_DET
R1
R2
18
PWM_DIM
3A
--> NC
1074 mA
24
PWM_DIM
Vout=(1+R1/R2)*0.8
INV_ON
(PSU)
PIN No
+2.5V/+1.8V
R1
+1.5V_DDR_FRC
Vd=550mV
R2
GND
NC
PWM_DIM
NC
(PSU)
Vout=0.827*(1+R1/R2)=1.521V
20101023
GP2R
POWER_LARGE
4
<Module Inv to Main Pin Connection>
INV  <--> MAIN
#11  <--> #24
#12  <--> #18
#13  <--> #20
#14  <--> #22
C421,C422 Close to LDO
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