THERMAL
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.

Power_PD2

2012/09/19

4

NC4_S7LRM
R403
1.5K
1%
PD_+24V
Q407
MMBT3904(NXP)
E
B
C
R491
0
C448
3300pF
50V
IC407
AP7173-SPG-13 HF(DIODES)
3
VCC
2
PG
4
EN
1
IN
5GND
6SS
7FB
8OUT
9
[EP]
+12V
C422
0.1uF
16V
OPT
R441
75K
1/16W
1%
R426
10K
+3.5V_ST
C424
330pF
50V
IC403
TPS54319TRE
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]
Q403
AO3435
FET_2.5V_AOS
G
D
S
+3.3V_Normal
PANEL_VCC
Q409
AO3407A
G
D
S
R402
300
RESET_IC_SOC_RESET
L413
CIC21J501NE
PWM_DIM
Q401
MMBT3904(NXP)
E
B
C
R419
1K
C406 0.1uF
16V
R457
4.3K
1/16W
1%
R412 3.9K
PWM_DIM_PULL_DOWN
R417
4.7K
OPT
+1.5V_DDR
R432
330K1/16W 5%
R462
10K
L404
CIC21J501NE
R430
10K
P401
SMAW200-H18S1
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
.
+24V
C440
0.1uF
16V
Q400
MMBT3904(NXP)
E
B
C
C417-*1
10uF 10V
CAP_10uF_X7R
R489
10K
+3.5V_ST
R439
33K
R453
27K
1%
R445
2.2K
IC409
NCP803SN293
PD_+24V_PWR_DET_ON_SEMI
1
GND
3
VCC 2RESET
C412
0.1uF
16V
PD_+24V
C447
0.33uF
16V
R443
10K
+12V
INV_CTL
L408
CIC21J501NE
R448
2.7K
1%
PD_+12V
+3.5V_ST
R461
10K OPT
R440
5.6K
+3.5V_ST
R421
10K
R488
100K
Q405
MMBT3904(NXP)
E
B
C
L412
CIS21J121
120
C403-*1
10uF 10V
CAP_10uF_X7R
R428
10K
C411
0.1uF
16V
C426
100pF
50V
OPT
R410
100K
C441
0.1uF
16V
C413
0.047uF
25V
L403
BLM18PG121SN1D
C444
0.1uF
16V
+3.3V_Normal
+3.3V_Normal
Q403-*1
DMP2130L
FET_2.5V_DIODE
G
D
S
IC408
NCP803SN293
PWR_DET_ON_SEMI
1
GND
3
VCC 2RESET
R450
0
5%
PD_+3.5V
R447
1.2K
1%
PD_+12V
560pF
C467
50V
L402
MLB-201209-0120P-N2
R414
10K
+12V
+5V_Normal
POWER_ON/OFF_1
C418 0.1uF
50V
+1.10V_VDDC
POWER_DET
RL_ON
C420
22uF
16V
R413
20K
IC408-*1
APX803D29
PWR_DET_ON_DIODES
1GND
3VCC
2
RESET
+3.3V_Normal
+12V
R480
100
PD_+24V
R454
11K 1%
R456
4.7K
1/16W
1%
+24V
+3.5V_ST
L407
MLB-201209-0120P-N2
+3.5V_ST
+3.3V_Normal
USB1_CTL
R438
22K
R433
10K
R436
15K
+3.5V_ST
C425
0.1uF
16V
R408 100
PWM2_2CH_POWER
PANEL_CTL
001:AL22
+5V_USB
R434
10K
R409
2K
R416
10K R415
100
+3.5V_ST
POWER_DET_RESET
USB1_OCD
R463
10K RESET_IC_SOC_RESET
+3.3V_Normal
L401
CIC21J501NE
L420
BLM18PG121SN1D
R482
8.2K
1%
PD_+24V
+5V_Normal
C404 0.1uF
16V
C438
0.1uF
25V
OPT
+2.5V_Normal
C474
0.1uF
R404
100K
PD_+24V
R405
5.6K
C419
4.7uF 10V
C488
3300pF
R442
30K
1/16W
1%
R406
4.7K
C405
10uF
16V
+3.5V_ST
C410
3300pF
50V
C439
100pF
50V
R401
10K
IC409-*1
APX803D29
PD_+24V_PWR_DET_DIODES
1GND
3VCC
2
RESET
R407
5.6K
R411
33K
OPT
Q402
MMBT3906(NXP)
1
2
3
C421
22uF
16V
OPT
R452
33K
1%
C476
0.1uF
16V
PWM1
L406
3.6uH
L415
3.6uH
C403
10uF
10V
CAP_10uF_X5R
85C
C417
10uF
10V
CAP_10uF_X5R
85C
R402-*1
100
+3.5V_SOC_RESET
IC401
TPS65281RGV
3
ROSC
2
COMP
4
RLIM
1
SS
5
EN_SW
6
FAULT
7
AGND
8
SW_OUT
9SW_IN
10 FB
11 LX
12 BST
13
PGND
14
VIN
15
V7V
16
EN
17
[EP]
IC402
TJ1118S-2.5
1GND
2OUT
3
IN
C437
22uF
10V
C430
10uF
10V
10uF
C461
10V C423
2.2uF
10V
C453
22uF
10V
C456
22uF
10V
C443
10uF
16V
C472
22uF
10V
D404
5V
OPT
D402
5V
OPT
D403
5V
OPT
D401 5V OPT
D405
5V

PANEL_POWER

+2.5V_Normal

S7LR core 1.15V volt

3A

CHANGE TO
16V/X5R
R1
+3.5V_ST --> 3.375V --> 3.46V
CHANGE TO
10UF/10V/X5R

+3.3V_Normal

CHANGE TO
10UF/10V/X5R

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

+5V_Normal

&

+5V_USB

+1.5V_DDR

R2

Vout=0.827*(1+R1/R2)

R2

Power_DET

R1
R1
+24V --> 3.78V --> 3.92V (3.79V)

Vout=0.8*(1+R1/R2)

R2

FROM LIPS & POWER B/D

+12V --> 3.58V --> 3.82V (3.68V)

1.5A

L13 POWER BLOCK (POWER DETECT 2)

*For 55LN54 Power ON Noise

Copyright © 2013 LG Electronics. Inc. All rights reserved.

Only for training and service purposes
LGE Internal Use Only