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POWER
FROM ADAPTOR 19V
+19V
JK400
OPT
KJA-DC-1-0032
Q407
SSM3J332R
4
4
OPT
C488
2
2
Surge Protection
68uF
OPT
D471
35V
OPT
20V
C492
R493
10uF
1
120K
1
25V
OPT
R492
120K
19V TO PANEL VCC(12V) DCDC CONVERTER
+19V
IC403
MP2315GJ
R470
100K
AAM
1
IN
NEW
2
3A
C472
SW
C470
3
10uF
0.1uF
25V
25V
GND
4
THE
SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE
SYMBOL MARK OF THE SCHEMETIC.
Copyright
2015 LG Electronics Inc. All rights reserved.
Only for training and service purposes
+19V to +3.5V_STANDBY
IC402
R478
MP2315GJ
100K
R471
AAM
FB
39K
1
8
1/16W
1%
IN
VCC
NEW
2
7
TDK
L471
C471
C473
C474
3A
4.7uH
68uF
10uF
0.1uF
SW
EN/SYNC
3
6
35V
25V
25V
GND
BST
C482
20130528 cJ.LIM
4
5
10uF
C479
R477
R479
68
0.1uF
20K
25V
C476
X5R => X7R
0.1uF
To improve CST Issue
2013.12.21 by GH.Song
50V
+3.5V_ST
OPT
R490
10K
OPT
R489
10K
RL_ON
R480
10K
POWER_ON/OFF_1
OPT
C477
0.47uF
16V
R481
FB
56K
8
TDK
CYNTEC
L470
10uH
VCC
L470-*1
7
10uH
EN/SYNC
C480
C481
C486
C483
R482
ZD405
6
0.1uF
10uF
10uF
10uF
11K
25V
1%
16V
16V
16V
BST
20130528 cJ.LIM
5
R483
3.3K
OPT
C478
R475
1%
R476
68
0.1uF
47K
25V
C475
R484
0.1uF
1K
50V
1%
3.5V_ST POWER_DET
R410
+3.5V_ST
C400
0.1uF
R485
56K
CYNTEC
L471-*1
4.7uH
+12V to PANEL_VCC
R486
C484
C487
C489
C485
2013.08.07
D470
10uF
22uF
22uF
0.1uF
2K
5.6B->5V
5V
25V
10V
10V
10V
10V
READY->APPLY
1%
R487
1.2K
1%
UBW2012-121F
R488
1K
1%
PANEL_CTL
+12V
+5V_Normal & +1.10V_VDDC
OPT
15V
+3.3V_Normal
R403
10K
OPT
OPT
C403
R473
4700pF
30K
50V
USB1_CTL
USB1_CTL_Pull_Down
R472
Check the pull down
3.3K
when AC Power On with HDD
USB1_OCD
+3.5V_ST to +3.3V_Normal
+3.5V_ST
10K
POWER_DET
OPT
OPT
C490
ZD408
1uF
5V
16V
10V
+12V
PANEL_VCC
POWER_ON/OFF_1
L408
Q405
SSM3J332R
120OHM
OPT
R451
R452
R445
C427
C425
5.6K
5.6K
33K
0.22uF
0.1uF
25V
25V
R446
120K
+3.5V_Normal to +1.5V_DDR
C
R442
C
TR_NXP
TR_KEC
10K
B
Q403
B
Q403-*1
MMBT3904(NXP)
2N3904S
R441
E
E
10K
BLM18PG121SN1D
+12V
TDK
L405
4.7uH
L404
C410
CB2012PK501T
0.047uF
25V
C405
C406
C407
10uF
10uF
1uF
25V
25V
10V
C408
OPT
2200pF
50V
OPT
C409
2200pF
50V
SS2
COMP1
1
18
THERMAL
EN1
FB1
25
2
17
EN2
AGND
3
IC400
16
R409
R422
91K
15K
ROSC/SYNC
RSET
SN1406035RGER
4
15
SW_EN
FB2
5
14
NFAULT
COMP2
6
13
+5V_Normal
C421
R408
0.047uF
100K
25V
+5V_Normal
+5V_USB
C432
1uF
16V
L15.5_ECI_M1A
FET_AOS
Q406-*1
AO3435
+3.5V_ST
+3.3V_Normal
FET_TOSHIBA
Q406
L410
SSM3J332R
BLM18PG121SN1D
TVS_SEMTECH
C428
C429
C430
R443
R447
ZD402
2.2uF
0.1uF
22uF
4.7K
22K
5V
10V
16V
10V
R448
TVS_KEC
2.2K
ZD402-*1
BOOST_EN
C
C
R444
TR_NXP
TR_KEC
10K
B
Q404
B
Q404-*1
MMBT3904(NXP)
2N3904S
E
E
+3.3V_Normal
+1.5V_DDR
1.3A
IC404
L411
L409
AZ1117EH-ADJTRG1
CB2012PK501T
IN
OUT
BRAZIL_ESD
ADJ/GND
C426
R449
R453
ZD403
1K
R1
0
2.5V
10uF
1/16W
10V
1%
C431
10uF
R450
10V
200
R2
1/16W
1%
Vout=1.25*(1+R2/R1)+Iadj*R2
Vout=0.6(R1/R2)+0.6
+1.10V_VDDC
CYNTEC
R1
OPT
L405-*1
C411
OPT
C412
C413
C414
R411
4.7uH
ZD407
ZD401
4.7K
82pF
10uF
22uF
22uF
5.1v
2.5V
50V
6.3V
10V
10V
1%
R2
R413
5.1K
1%
C416
22pF
50V
C417
R414
3300pF
10K
50V
R415
100
1%
R2
R416
5.1K
1%
C419
22pF
R1
50V
R417
C418
39K
C420
47pF
1%
R418
3300pF
50V
20K
50V
+5V_Normal
TDK
L406
4.7uH
CYNTEC
L406-*1
C423
C424
C491
470pF
4.7uH
22uF
22uF
16V
16V
50V
R491
5.1
Vout=0.6(R1/R2)+0.6
150112
POWER
4
LGE Internal Use Only
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