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POWER
FROM ADAPTOR 19V
+19V to +3.5V_STANDBY
+19V
R471
47K
JK400
KJA-DC-1-0032
4
4
Surge Protection
C473
C474
C488
C471
D471
2
68uF
68uF
10uF
0.1uF
2
20V
35V
35V
25V
25V
1
1
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
IC402
R478
MP2315GJ
100K
R485
AAM
FB
56K
1
8
IN
VCC
NEW
2
7
DEV_COIL
3A
L471
SW
EN/SYNC
4.7uH
3
6
GND
BST
C482
C484
C487
C489
20130528 cJ.LIM
4
5
10uF
10uF
22uF
22uF
10V
10V
10V
10V
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
DEV_COIL
L470
VCC
4.7uH
7
EN/SYNC
C480
C481
C486
C483
R482
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
+3.5V_ST
R410
10K
+3.5V_ST
OPT
OPT
C400
C490
ZD408
0.1uF
1uF
5V
16V
10V
+12V to PANEL_VCC
R486
C485
2013.08.07
D470
0.1uF
2K
5.6B->5V
5V
25V
READY->APPLY
1%
+12V
R487
1.2K
1%
L408
UBW2012-121F
120OHM
R488
1K
1%
OPT
R445
C425
33K
0.1uF
25V
R446
120K
R442
10K
B
PANEL_CTL
R441
10K
+12V
+5V_Normal & +1.10V_VDDC
OPT
ZD405
15V
+3.3V_Normal
R403
10K
OPT
OPT
C403
R473
4700pF
30K
50V
USB1_CTL
USB1_CTL_Pull_Down
Check the pull down
when AC Power On with HDD
USB1_OCD
+3.5V_ST to +3.3V_Normal
+3.5V_ST
POWER_DET
R443
4.7K
PANEL_VCC
POWER_ON/OFF_1
Q405
SSM3J332R
R451
R452
C427
5.6K
5.6K
0.22uF
25V
+3.5V_Normal to +1.5V_DDR
C
C
TR_NXP
TR_KEC
Q403
B
Q403-*1
MMBT3904(NXP)
+3.3V_Normal
2N3904S
1.3A
E
E
L409
AZ1117EH-ADJTRG1
BLM18PG121SN1D
C426
10uF
10V
Vout=1.25*(1+R2/R1)+Iadj*R2
+12V
DEV_COIL
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
91K
ROSC/SYNC
RSET
SN1406035RGER
4
15
SW_EN
FB2
5
14
NFAULT
COMP2
6
13
+5V_Normal
R472
3.3K
C421
R408
0.047uF
100K
25V
+5V_Normal
+5V_USB
C432
1uF
16V
L15.5_ECI_M1A
FET_AOS
Q406-*1
AO3435
+3.3V_Normal
FET_TOSHIBA
Q406
L410
SSM3J332R
BLM18PG121SN1D
TVS_SEMTECH
C428
C429
C430
R447
ZD402
2.2uF
0.1uF
22uF
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
+1.5V_DDR
IC404
L411
CB2012PK501T
IN
OUT
ADJ/GND
OPT
R449
R453
ZD403
R1
1K
0
2.5V
1/16W
1%
C431
10uF
R450
10V
200
R2
1/16W
1%
Vout=0.6(R1/R2)+0.6
+1.10V_VDDC
R1
OPT
OPT
C411
OPT
OPT
C412
C413
C414
R411
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
R422
15K
1%
C419
22pF
R1
50V
R417
C418
39K
C420
47pF
1%
R418
3300pF
50V
20K
50V
+5V_Normal
DEV_COIL
L406
4.7uH
C423
C424
22uF
22uF
16V
16V
Vout=0.6(R1/R2)+0.6
150112
POWER
4
LGE Internal Use Only
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