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.
+3.5V_ST
0.1uF
C451
DELETE 100K
R404
PD_+24V
10K
R430
+12V
NR8040T3R6N
3.6uH
L415
AO3407A
Q409
G
D
S
56K
1%
R441
22uF
10V
C456
+3.5V_ST
560pF
50V
C467
1.5K
1%
R403
PD_+24V
THERMAL
TPS54319TRE
IC403
1
VIN_1
3
GND_1
7
COMP
9SS/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]
0.1uF
16V
C440
+3.3V_Normal
L413
SS
10K
R443
0.1uF
C474
22uF
10V
C453
10uF
10V
C403
5.6K
R440
22uF
10V
C472
+1.5V_DDR
POWER_DET
47K
R429
DELETE
L412
SS
1/16W 330K 5%
R432
0.1uF
16V
C438
0.1uF
16V
C411
0.1uF
16V
DELETE
C445
0.1uF
16V
C425
4.7uF
16V
C423
FET_AOS
PANEL_CTL
THERMAL

AP7173-SPG-13 HF(DIODES)

IC407

3
VCC
2
PG
4
EN
1
IN
5GND
6SS
7FB
8OUT
9
[EP]
+3.5V_ST
+1.10V_VDDC
10uF
25V
C443
100
R480
PD_+24V
+12V
10uF
16V
DELETE
C442
+3.3V_Normal
0.1uF
16V
C432
10K
R463
RESET_IC_SOC_RESET
0.1uF
16V
C444
0.1uF
16V
C435
0.1uF
16V
C447
100K
R488
0.1uF
16V
C476
0.1uF
16V
C431
0.1uF
16V
C455
10uF
10V
C430
+3.3V_Normal
33K
R439
1.21K
1%
R447
PD_+12V
0.1uF
16V
C412
PD_+24V
22K
R435
DELETE
PANEL_VCC
100pF
50V
C439
0.1uF
16V
C475
100
R402
3.5V_SOC_RESET
10K
R433
+2.5V_Normal
+3.3V_Normal 10K
R428
22K
R438
BLM18PG121SN1D
L420
+3.5V_ST
22K
R431
DELETE
10uF
10V
C461
+3.5V_ST
BLM18PG121SN1D
L403
0.1uF
16V
C441
+24V
10K
R434
POWER_ON/OFF_1
15K
R436
27K
1%
R442
4.3K
1%
R457
4.7K
1%
R456
TJ3940S-2.5V-3L
IC402
1
GND
2VOUT
3
VIN
0
R414
10K
R489
10K
R490
DELETE
RL_ON
2.2K
R405
DELETE
2.2K
R407
DELETE
2.7K
1%
PD_+12V
R448 0
5%
PD_+3.5V
R450
1
R473
3K
3K_PANEL_DISCHARGE
R407-*1
3K
R405-*1
3K_PANEL_DISCHARGE
0.01uF
50V
C436
0.01uF
0.015uF
50V
C409
0.015uF
3300pF
50V
C448
3300pF
C488
8.2K
1%
R482
PD_+24V
MMBT3904(NXP)
Q407
E
B
C
MMBT3904(NXP)
Q406
DELETE
E
B
C
MMBT3904(NXP)
Q400
E
B
C
APX803D29
IC408
POWER_DET_DIODES
1
GND
3
VCC 2RESET
NCP803SN293
IC408-*1
POWER_DET_ON_SEMI
1
GND
3
VCC 2RESET
NCP803SN293
PD_+24V_PWR_DET_ON_SEMI
IC409-*1
1
GND
3
VCC 2RESET
APX803D29
IC409
PD_+24V_PWR_DET_DIODES
1
GND
3
VCC 2RESET
100
R445
FET_AOS
AO3407A
Q403
FET_AOS
G
D
S
5.1K
R405-*2
5.1K_PANEL_DISCHARGE
5.1K
R407-*2
5.1K_PANEL_DISCHARGE
22uF
10V
C437
MMBT3904(NXP)
Q405
E
B
C
+3.5V_ST
MMBT3904(NXP)
Q401
E
B
C
+3.5V_ST+3.5V_ST
+3.3V_Normal
10K
R401
+3.5V_ST
+24V
MMBT3906(NXP)
Q402
1
2
3
PWM_DIM
10K
OPT
R461
0.1uF
50V
C418
4.7K
R406
10K
R462
CIC21J501NE
L404
SS
100
PWM2_2CH_POWER
R408
0.1uF
16V
C404
CIC21J501NE
L408
SS
0.1uF
16V
C406 PWM1
INV_CTL
10K
R426
+12V
10K
R409
10K
R421
MLB-201209-0120P-N2
L402
SMAW200-H18S1
P401
14 12V
9
24V
4PDIM#1
18 GND
13
12V
8GND
3
3.5V
17
GND
12 GND
7
GND
2DRV ON
16 N.C
11
GND
6PDIM#2
1
PWR ON
15
12V
10 24V
5
3.5V
19
.
MLB-201209-0120P-N2
L407
1K
R419
POWER_DET_RESET
300
R402-*1
RESET_IC_SOC_RESET
JP_GND1
JP_GND2
JP_GND4
JP_GND3
2.2K
FET_2.5V
R445-*1
2.2uF
10V
FET_2.5V
C423-*1
DMP2130L
FET_2.5V_DIODE
Q403-*1
G
D
S
AO3435
FET_2.5V_AOS
Q403-*2
G
D
S
100K
R410
10uF CAP_10uF_X5R
10V
85C
C417
CIC21J501NE
L401
SS
27K
1%
R453
0
R491
3.6uH
L406
+3.3V_Normal
330pF
50V
C424
22uF
16V
C420
+5V_Normal
4.7K
DELETE
R417
2K
R411
THERMAL

TPS65281RGV

IC401

3
ROSC
2
COMP
4
RLIM
1
SS
EN_SW
5
FAULT
6
AGND
7
SW_OUT
8
SW_IN
9
FB
10
LX
11
BST
12
PGND
13
VIN
14
V7V
15
EN
16
17
[EP]
100pF
50V
DELETE
C426
4.7uF 10V
C419
USB1_CTL
20K
R413
+5V_Normal
11K 1%
R454
10uF 10V
CAP_10uF_X7R
C417-*1
22uF
16V
OPT
C421
USB1_OCD
10uF
16V
C405
33K
1%
R452
0.1uF
16V
DELETE
C422
3300pF
50V
C410
10K
R412
+12V
0.047uF
25V
C413
+5V_USB
5V OPT
D401
5V
OPT
D403
5V
OPT
D402
5V
OPT
D405
5V
OPT
D404
500-ohm
L401-*1
SAMWHA
500-ohm
SAMWHA
L404-*1
500-ohm
SAMWHA
L408-*1
500-ohm
SAMWHA
L412-*1
500-ohm
SAMWHA
L413-*1

POWER 4

4A

R2
New item

Max 1000mA

Vout=0.8*(1+R1/R2)=1.5319

+1.5V_DDR

$ 0.165

Vd=550mV
12V -->3.58V --> 3.82V (3.68V)

+3.3V_Normal

FROM LIPS & POWER B/D

R1

780 mA

PANEL_POWER

+3.5V_ST -> 3.375V
R1

1.5A

S7LR core 1.2V volt

R2

300 mA

Vout=0.827*(1+R1/R2)=1.225V

24V-->3.78V --> 3.92V (3.79V)
ST_3.5V--> 3.375V --> 3.46V

+2.5V/+1.8V

Power_DET

2012.11.122013 S7LR2

+5V_Normal

&

+5V_USB

Vout=0.8*(1+R1/R2)

CHANGE TO
16V/X5R
R1
CHANGE TO
10UF/10V/X5R
R2
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
LGE Internal Use Only