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FROM LIPS & POWER B/D
+3.5V_ST
MMBT3906(NXP)
Q402
+3.5V_ST
1
3
R413
2
OPT
10K
R414
33K
R410
R406
OPT
4.7K
10K
R409
C
RL_ON
10K
B
Q401
MMBT3904(NXP)
R407
E
10K
D401
5V OPT
SMAW200-H18S1
L403-*1
L402-*1
CB2012PK501T
CB2012PK501T
SAMHWA
SAMHWA
CIC21J501NE
PWR ON
1
L402 SS
L403
3.5V
SS
+3.5V_ST
3
3.5V
C403
0 . 1 u F
CIC21J501NE
5
GND
16V
7
L405
24V
+24V
9
GND
C405
0 . 1 u F
MLB-201209-0120P-N2
11
12V
50V
13
L413
12V
+12V
15
GND
C407
0 . 1 u F
17
MLB-201209-0120P-N2
16V
C401
68uF
35V
OPT
+5V_Normal
Vout=0.8*(1+R1/R2)
&
L404
3.6uH
+5V_USB_1
C410
C411
0 . 0 4 7 u F
22uF
25V
16V
R408
0
+12V
CHANGE TO
16V/X5R
SAMHWA
L401-*1
CB2012PK501T
C404
PGND
10uF
16V
IC401
VIN
TPS65281RGV
C406
4 . 7 u F 10V
R405
100K
V7V
EN
[ E P ]
R412
R411
20K
C408
2K
100pF
50V
C409
OPT
3300pF
50V
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.
Copyright © 2013 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
+12V
SS
L409
120
CIS21J121
MAG
L409-*1
MLB-201209-0120P-N2
+3.3V_Normal
+3.5V_ST
R416
1K
R415
100
R418
10K
C
R417
INV_CTL
B
10K
E
Q403
MMBT3904(NXP)
P401
R419
3.9K
OPT
DRV ON
2
PDIM#1
4
PWM_DIM
PDIM#2
6
R420
100
PWM1
GND
T120
8
24V
10
GND
12
12V
14
N.C
+3.5V_ST
16
GND
18
19
C418
10uF
10V
+5V_Normal
R1
R404
C402
33K
22uF
1%
C413
C412
16V
330pF
0 . 1 u F
R401
OPT
50V
27K
16V
OPT
1%
R2
C414-*1
+5V_USB_1
C414
CAP_10uF_X5R
10uF
CHANGE TO
10V
10uF 10V
10UF/10V/X5R
85C
CAP_10uF_X7R
SW_OUT
+5V_Normal
AGND
R403
10K
USB1_OCD
FAULT
+3.3V_Normal
EN_SW
R421
4.7K
OPT
USB1_CTL
PANEL_POWER
OPT
C428
0 . 0 1 5 u F
0 . 0 1 u F
C424
C420
10uF
New item
C423
0 . 1 u F
25V
0 . 0 1 5 u F
0 . 0 1 u F
25V
50V
50V
Q406
AO3407A
C431
R435
10uF
33K
25V
G
OPT
C435
R436
5.6K
0 . 1 u F
25V
C
R426
10K
B
Q405
PANEL_CTL
MMBT3904(NXP)
001:AL22
E
R425
10K
+1.5V_DDR
IC404
AP7173-SPG-13 HF(DIODES)
L410
[ E P ]
BLM18PG121SN1D
IN
OUT
1
8
R1
R440
PG
FB
4.3K
2
7
1/16W
1%
VCC
SS
3
6
1.5A
+3.3V_Normal
R2
R430
C433
10K
EN
GND
4
5
560pF
50V
NON_CI_CAP
C421
0 . 1 u F
16V
V o u t = 0 . 8 * ( 1 + R 1 / R 2 ) = 1 . 5 3 1 9
+2.5V/+1.8V
+3.3V_Normal
+2.5V_Normal
Vd=550mV
R434
NON_CI_CAP
1
C419
0 . 1 u F
16V
C425
D402
10uF
5V
10V
OPT
LDO_NEW
I C 4 0 2 - * 1
T J 1 1 1 8 S - 2 . 5
IN
OUT
3
2
1
GND
+ 3 . 5 V _ S T - - > 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
+ 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 )
R441-*2
5.1K
+ 1 8 . 5 V - - > 3 . 5 V - - > 3 . 7 5 V ( 3 . 5 9 V )
PD_+12V
5.1K_PANEL_DISCHARGE
R450
2.7K
1%
R442-*2
5.1K
5.1K_PANEL_DISCHARGE
R441-*1
R442-*1
4.7K
4.7K
PD_+12V
R451
1.2K
PANEL_DISCHARGE_RES_4.7K
PANEL_DISCHARGE_RES_4.7K
1%
PANEL_VCC
PD_KR_42_LIPS
+24V
R451-*1
5.1K
1%
PD_+24V
R443
8.2K
NON_CI_CAP
1%
C437
R441
R442
0 . 1 u F
5.6K
5.6K
25V
PD_+24V
R444
PD_+24V
1.5K
C441
1%
0 . 1 u F
PANEL_DISCHARGE_RES_5.6K
16V
PANEL_DISCHARGE_RES_5.6K
+3.3V_Normal
Max 1000mA
+3.5V_ST
+1.5V_DDR
NON_CI_CAP
C443
L414
0 . 1 u F
16V
BLM18PG121SN1D
C439
C440
D403
22uF
0 . 1 u F
5V
10V
16V
OPT
POWER_ON/OFF_1
S 7 L R c o r e 1 . 2 V v o l t
+3.3V_Normal
R429
10K
+3.5V_ST
SS
L408
L408-*1
CB2012PK501T
SAMHWA
300 mA
NON_CI_CAP
VIN_2
2
C416
C417
10uF
0 . 1 u F
10V
16V
GND_2
4
3A
Vout=0.827*(1+R1/R2)=1.225V
+3.5V_ST
+3.5V_SOC_RESET
+3.5V_ST
R461-*1
100
R457
100K
RESET_IC_SOC_RESET
PD_+3.5V
R465
R455
10K
0
PWR_DET_ON_SEMI
IC405
5%
NCP803SN293
RESET_IC_SOC_RESET
R461
POWER_DET
VCC
RESET
300
3
2
PD_KR_42_LIPS
I C 4 0 5 - * 1
1
R455-*1
APX803D29
100
C445
GND
0 . 1 u F
1%
POWER_DET_RESET
RESET
2
3
1
PD_+24V
GND
R460
100K
PWR_DET_ON_DIODES
I C 4 0 6 - * 1
PD_+24V_PWR_DET_ON_SEMI
IC406
APX803D29
NCP803SN293
PD_+24V
R462
VCC
RESET
100
RESET
3
2
2
3
1
1
GND
GND
PD_+24V_PWR_DET_DIODES
Power_DET
780 mA
+3.3V_Normal
FET_2.5V_AOS
Q408
L412
AO3435
BLM18SG700TN1D
C448
C446
G
22uF
0 . 1 u F
R454
R458
10V
16V
10K
C444
22K
2 . 2 u F
10V
R459
FET_2.5V_DIODE
2.2K
DMP2130L
Q408-*1
C
R456
10K
B
Q407
MMBT3904(NXP)
E
C422
0 . 3 3 u F
16V
+1.10V_VDDC
C426
0 . 1 u F
16V
L411
3.6uH
PH_3
12
PH_2
NR8040T3R6N
17
11
C438
D405
C432
C434
0 . 1 u F
5V
PH_1
10
22uF
22uF
16V
OPT
10V
10V
SS/TR
9
C427
C436
3300pF
50V
R1
R433
R438
100pF
1/16W 330K 5%
27K
1/16W
1%
C429
3300pF
50V
R2
R439
56K
$ 0 . 1 6 5
1/16W
1%
LA2AW
2 0 1 2 . 0 9 . 1 1
4
POWER
LGE Internal Use Only
VCC
VCC
D404
5V
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