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+3.5V_ST
R501
10K
R500
RL_ON
10K
EAG63590902
P500
SMAW200-H24S5
G+
R568
33
PWM_TOUT
NON_G+
PWR ON
1
2
L502
R561 100
+3.5V_ST
PDIM#1
UBW2012-121F
3
4
PWM_DIM
3.5V
5
6
R569
3.5V
C502
33
7
8
0.1uF
PWM_TIN
GND
9
10
G+
16V
12V
11
12
+12V
12V
13
14
UBW2012-121F
12V
15
16
GND
17
18
C505
L503
24V
0.1uF
19
20
UBW2012-121F
50V
24V
21
22
GND
23
24
L504
25
'14 UHD POWER
eMMC POWER
+3.3V_NORMAL
+1.8V
3.3V_EMMC
DVDD18_EMMC
L501
L505
BLM18PG121SN1D
BLM18PG121SN1D
C504
C509
C506
C510
0.1uF
0.1uF
22uF
22uF
16V
16V
10V
10V
+1.8V - eMMC 4.51(LG1311-B0)
& Vx1 pull-up
+1.8V
+3.3V_NORMAL
IC501
AZ1117EH-ADJTRG1
EAN62868801
IN
OUT
R506
ADJ/GND
1
R504
75
1%
R505
33
1%
+3.3V_NORMAL
+12V
IC500
L506
L500
BD86106EFJ
2uH
EAN62653301
[EP]
BLM18PG121SN1D
PGND
SW_2
1
8
Placed on SMD-TOP
VIN
SW_1
2
7
C508
C535
AGND
EN
0.0068uF
3
6
10uF
C500
C501
C503
R502
50V
10uF
10uF
0.1uF
20K
10V
FB
6A
COMP
16V
16V
16V
4
5
OPT
R503
POWER_ON/OFF2_1
10K
C507
0.1uF
16V
Vout=0.8*(1+R1/R2)
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 © 2014 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
+12V
L509
MLB-201209-0120P-N2
+3.3V_NORMAL
R509
1K
INV_CTL
INV CTL
R507
100
100
PDIM#2
R562
PWM_DIM2
GND
3.5V
GND
12V
12V
PANEL_CTL
L507
+24V
GND
UBW2012-121F
24V
24V
L508
C518
24V
0.1uF
UBW2012-121F
GND
50V
+12V
C515
C516
C517
10uF
10uF
10uF
16V
16V
16V
+3.3V_NORMAL
VBY1_LOCK_LED
R510
10K
VBY1_LOCK_LED
LD500
R508 22
R514 1.5K
Q501
2SC3052
+3.3V_NORMAL
VBY1_LOCK_LED
VBY1_LOCK_LED
VBY1_LOCK_LED
R570
10K
R536
VID0
0
C511
C513
10uF
10uF
10V
10V
+12V
L517
MAX
A
BLM18PG121SN1D
Placed on SMD-TOP
+3.3V_NORMAL
C559
C560
C561
10uF
10uF
0.1uF
16V
16V
16V
OPT
R511
1.5K
C512
C514
1%
R1
47pF
100uF
50V
R512
OPT
30K
1%
R2
Vout=0.8*(1+R1/R2)
R513
10K
1%
R1:10K/R2:23K, V=1.148V
R1:10K/R2:21.5K, V=1.172V
POWER UP SEQUENCE
5V/3.3V->1.5V/1.1V->1.0V
PANEL_POWER
TYP 6000mA
L510
MLB-201209-0120P-N2
C521
C525
C523
10uF
Q503
0.1uF
0.01uF
AO4423
25V
50V
25V
EBK61313101
OPT
S1
D4
1
AO4423
8
S2
D3
R525
C527
C528
2
7
10uF
10uF
10K
S3
D2
3
6
R528
25V
25V
2K
G
D1
4
5
OPT
R526
1.8K
C529
10uF
EBK61313102
C
Q503-*1
R518
25V
AO4447A
10K
B
Q502
OPT
S_1
2SC3052
1
AO4447
S_2
E
2
S_3
3
G
4
Core 1.1V or 1.15V
+12V
L514
POWER_ON/OFF2_4
BLM18PG121SN1D
C537
C567
IC504
10uF
0.1uF
TPS54327DDAR
16V
EAN61832901
R560
[EP]GND
10K
EN
VIN
1
8
R1
R2-1.15V
R547
10K
VFB
VBST
2
7
1%
R539
VREG5
SW
120K
3
6
1%
SS
GND
3A
4
5
R540
100K
R2-1.1V
R558
1%
16K
C543
C545
1%
1uF
3300pF
10V
50V
D
G
R559
5.6K
5%
1%
S
Vout=0.765*(1+R1/R2)=1.119V
Switching freq: 700K
Vout=0.765*(1+R1/R2)=1.154V
+1.1V or +1.13V _CORE
IC502
L518
BD86106EFJ
2uH
EAN62653301
[EP]
PGND
SW_2
1
8
VIN
SW_1
2
7
C563
C566
C564
AGND
EN
0.0068uF
3
6
10uF
R563
100uF
50V
6.8K
10V
C565
FB
6A
COMP
47pF
4
5
50V
POWER_ON/OFF2_4
R2-1.13V
R564
C562
10K
0.1uF
16V
R573
150K
1%
+3.3V_NORMAL
R574
180K
1%
R572
10K
D
R571
G
VID1
Voltage drop 0.042V
0
5%
S
Voltage drop 0.042V
Power_DET
+12V
+3.5V_ST
PANEL_VCC
PD_+12V
R534
2.7K
1%
PD_+12V
R531
C531
C534
R535
2K
10uF
0.1uF
1.2K
OPT
1%
25V
25V
OPT
+24V
D_4
8
D_3
7
PD_UHD_24V
PD_20V
PD_24V
D_2
R542-*1
R542
6
R542-*2
5.6K
8.2K
9.1K
D_1
1%
1%
5
1%
PD_20V
PD_24V
PD_UHD_24V
R543-*1
R543
R543-*2
1.6K
1.3K
1.5K
1%
1%
1%
+12V
DDR +1.5V
L511
+1.15V_CPU
BLM18PG121SN1D
C568
C519
0.1uF
10uF
16V
C553
R517
R519
0.1uF
16V
R1
18K
3.6K
1%
1%
L516
3.6uH
C520
100pF
50V
SM-8040
C555
R520
C558
22uF
22K
22uF
10V
10V
1%
Switching freq: 700K
R2
Vout=0.765*(1+R1/R2)=1.516V
+5.0V normal & USB
+24V
L513
120-ohm
VIN_1
1
THERMAL
VIN_2
2
29
+1.1V_CORE
VIN_3
C536
C538
C540
3
10uF
10uF
0.1uF
IC503
50V
PGND_1
35V
35V
4
OPT
SN1302001(TPS65286RHDR)
PGND_2
5
EAN62911501
PGND_3
6
6A
V7V
7
R533
R565
R1
0
10K
5%
1%
C541
0.0068uF
R566
50V
10K
1%
R567
R2
13K
1%
R2-1.1V
R550
+3.5V_ST
100K
PD_+3.5V
R545
R555
IC505
0
10K
5%
APX803D29
OPT
POWER_DET
VCC
RESET
3
2
1
C547
0.1uF
GND
16V
C557
0.1uF
OPT
16V
R556
not to RESET
0
at 8kV ESD
5%
PD_20_24V
R549
100K
C533
0.1uF
PD_20_24V
16V
IC506
APX803D29
POWER_DET_1
R557 0
VCC
RESET
3
2
OPT
1
5%
C548
GND
0.1uF
24V-->3.48V
16V
20V-->3.51V
PD_20_24V
12V-->3.58V
ST_3.5V-->3.5V
+1.5V_DDR
POWER_ON/OFF2_3
IC507
R521
TPS54327DDAR
[EP]GND
10K
EN
VIN
1
8
16V
0.1uF
C526
VFB
VBST
2
7
L512
3.6uH
VREG5
SW
3
6
SM-8040
SS
GND
3A
4
5
C530
C532
22uF
22uF
10V
10V
C522
C524
1uF
3300pF
10V
50V
R2
C544
2200pF
C546
C549
50V
R552
100pF
0.047uF
6.8K
50V
25V
R546
OPT
1%
10K
C569
C570
C556
22uF
22uF
10uF
R1
10V
10V
10V
C551
82pF
R553
50V
51K
LX_3
1%
21
L515
4.7uH
LX_2
20
LX_1
C550
+5V_NORMAL
19
R548
0.047uF
BST
0
25V
18
SW_IN2
17
C552
SW_IN1
R551
R554
16
1uF
100K
100K
10V
5%
NFAULT1
5%
15
Vout=0.6*(1+R1/R2)
2013-10-28
UB83
POWER
05
LGE Internal Use Only
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