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fr. PWR SUPPLY UNIT
+5V_ST
R506
OPT
2K
R508
100
RL_ON
+5V_ST
C511
0.1uF
16V
R507
10K
OPT
R509
100
MOD_ON
C512
0.1uF
16V
+3.3V_Stand_By
+3.3V_ST
+5V_ST
IC500
R510
AP2121N-3.3TRE1
0
VIN
VOUT
3
2
1
GND
C502
C506
C510
C514
C516
10uF
0.1uF
10uF
10uF
0.1uF
16V
16V
6.3V
6.3V
16V
OPT
+0.9V_CORE_BCM35230
+5V_MAIN
L501
IC501
2uH
AOZ1038PI
[EP]LX
L500
MLB-201209-0120P-N2
*NOTE 17
PGND
NC_2
1
8
OPT
C520
Placed on SMD-TOP
R553 0
10uF
VIN
NC_1
2
7
6.3V
OPT
AGND
EN
3
6
C500
C503
C508
R504
10uF
10uF
0.1uF
16K
FB
5A
COMP
16V
16V
16V
4
5
OPT
R501
POWER_ON/OFF_2
4.7K
10K
R551
OPT
Vout=Vref*(1+R1/R2)|Vref=0.8
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 © 2011 LG Electronics Inc. All rights reserved.
Only for training and service purposes
P_17V
P500
SMAW200-H18S1
L502
MLB-201209-0120P-N2
C522
100uF
25V
OPT
L516
MLB-201209-0120P-N2
1
2
L503
3
4
MLB-201209-0120P-N2
5
6
C523
10uF
16V
7
8
9
10
11
12
13
14
R512
15
16
0
17
18
C524
10uF
16V
19
TUNER
MAX 4000 mA
+0.9V_CORE
C521
C518
C519
C597
C598
C596
10uF
10uF
10uF
10uF
10uF
3300pF
6.3V
6.3V
6.3V
6.3V
6.3V
50V
OPT
OPT
R1
R2
Switching freq: 555K
+5V_MULTI Switch
C526
0.1uF
50V
P_+5V
C527
C530
C535
100uF
0.1uF
10uF
16V
16V
6.3V
OPT
PSU_ERR_DET
C525
16V
0.1uF
OPT
+5V_ST
C528
C531
C536
100uF
0.1uF
10uF
16V
16V
6.3V
OPT
AC_DET
C532
0.1uF
16V
+3.3V_Normal
+3.3V_TU
L504
MLB-201209-0120P-N2
C539
C540
C541
C544
0.1uF
22uF
0.1uF
0.1uF
16V
16V
16V
16V
+3.3V_TU
+1.25V_TU
R552
IC503
120-ohm BLM18PG121SN1D
AZ1117BH-ADJTRE1
INPUT
1A
OUTPUT
3
2
1
C537
C538
C533
C546
0.1uF
10uF
10uF
0.1uF
ADJ/GND
50V
16V
6.3V
50V
R1
R513
R542
1
1.2K
R2
R541
OPT
10
V0 = 1.25(1+R2/R1)
PLACE THE NEAR TO TUNER
+2.5V_BCM35230
+5V_MAIN
IC507
Max 960mA
AZ1085S-ADJTR/E1
INPUT
OUTPUT
3
3A
2
1
C591
C517
C589
C590
ADJ/GND
10uF
0.1uF
R534
0.1uF
10uF
16V
16V
1K
6.3V
16V
1%
R1
R554
R2
1
V0 = 1.25(1+R2/R1)
+5V_MULTI
R538
P_+5V
0
2012
1/10W
C563
10uF
16V
OPT
+5V_MAIN
R537
0
3216
1/4W
C565
10uF
16V
OPT
17V->5V
+5V_NORMAL
IC506
C561
P_17V
TPS54231D
0.1uF
50V
BOOT
1
VIN
2
EN
-->3.12V
3
OPT
C549
C551
C554
10uF
4.7uF
0.01uF
SS
4
2A
25V
50V
50V
C560
0.015uF
50V
R518
POWER_ON/OFF_2
10K
OPT
Vout=0.8*(1+R1/R2)
0.1uF
50V
C558
OPT
+3.3V_NORMAL
+5V_MULTI
OPT
R545
0
L506
MLB-201209-0120P-N2
VIN_1
1
THERMAL
VIN_2
2
17
GND_1
3
IC505
SN1007054RTER
GND_2
C553
C550
4
22uF
0.1uF
10V
50V
R521
13K
C557
3300pF
50V
*NOTE 21
+1.5V_DDR
+5V_ST
+3.3V_ST
R522
10K
R502
S
10K
Q501
C505
RTR030P02
C
G
2SC3052
Q504
R505
0.47uF
10K
B
D
POWER_ON/OFF_2
25V
E
EAX64029301
POWER
+5V_TU
Max 420mA
Closed to Tuner
L512
22.0uH
R1
C581
C585
C577
10uF
10uF
10uF
16V
6.3V
PH
16V
OPT
8
GND
7
COMP
R533
6
20K
R2
1%
VSENSE
C576
5
470pF
50V
C582
15pF
50V
R529
51K
*NOTE 13
POWER_ON/OFF_2
R527
22
+3.3V_Normal
C594
0.1uF
50V
L508
3.6uH
PH_3
12
PH_2
11
PH_1
R1
10
C578
C579
C515
C529
C592
10uF
10uF
10uF
10uF
SS
6.3V
6.3V
100pF
9
6.3V
6.3V
C593
50V
0.1uF
16V
R546
330K
R2
Vout=Vref*(1+R1/R2)|Vref=0.827
+5V_MULTI
+1.5V_DDR
IC504
AZ1085S-ADJTR/E1
INPUT
OUTPUT
3
2
1
ADJ/GND
C513
C509
R526
16V
22uF
0.1uF
1%
10V
C507
1K
10uF
R1
10V
R2
R555
1
V0 = 1.25(1+R2/R1)
5
19
LGE Internal Use Only
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