47LX9500-ZA, 47LX950N-ZA, 47LX9800-ZA, 47LX9900-ZA (CHASSIS:LD03R) - LG TV Service Manual (repair manual). Page 46

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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.
(+12V)
(+12V)
(+12V)
+3.3V
L306
3.6uH
NR8040T3R6N
R304
10
1%
0.1uF
C319
16V
+1.0VDC
VLCD_POWER
L305
3.6uH
4.9A
C302
0.1uF
IC301
MP8706EN-C247-LF-Z
3
SW_2
2
SW_1
4
BST
1
IN
5
EN/SYNC
6
FB
7
VCC
8
GND
C308
1uF
50V
C311
100pF
50V
OPT
R307
100K
VLCD_POWER
+3.3V
IC307
SC4215ISTRT
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
+2.5VQ
+1.8V_DDR
C349
10uF
10V
C353
0.1uF
16V
C365
0.1uF
16V
C350
10uF
10V
C366
0.1uF
16V
+2.5VQ
IC308
SC4215ISTRT
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
+1.8V_DDRS
C354
0.1uF
16V
L303
120-ohm
C304
100pF
R302
3K
1%
R1
L301
120-ohm
R308
39K
1%
R1
R309
12.4K
1%
R2
C306
10uF
6.3V
OPT
R305
100K
R330
15K
1%
R1
R331
12K
1%
R2
C312
1uF
10V
R306
39K
R301
22
C315
0.1uF
50V
C301
22uF
25V
R332
15K
1/10W
1%
R1
R333
12K
1/10W
1%
R2
C309
0.47uF
50V
OPT
IC302
MP2212DN
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
R316
10
C328
0.1uF
C324
22uF
16V
C336
22uF
16V
OPT
R315
10
C329
1uF
25V
IC305
MP2212DN
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
C322
22uF
16V
OPT
C331
22uF
16V
R312
10K
D302
100V
1N4148W_DIODES 
OPT
L309
3.6uH
C323
0.1uF
50V
C327
100pF
C333
0.1uF
50V
R313
0
R325
10K
R329
220
IC309
BD35331F-E2 
3
VTTS
2
EN
4
VREF
1
GND
5
VDDQ
6
VCC
7
VTT_IN
8
VTT
C367
0.1uF
16V
R327
15K
1/10W
1%
R1
C352
0.1uF
16V
R326
1M
OPT
C342
0.1uF
16V
C344
10uF
16V
C359
10uF
25V
L312
BLM18PG121SN1D
C343
0.1uF
16V
C347
0.1uF
16V
C364
0.1uF
16V
C348
10uF
10V
+3.3V
C351
0.1uF
16V
OPT
C346
0.1uF
16V
L311
BLM18PG121SN1D
1V8
DDR_VREF0
DDR_VTT
C363
2.2uF
10V
IC306
SC4215ISTRT
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
C358
0.1uF
16V
R328
12K
1/10W
1%
R2
DDR_VREF1
C345
0.1uF
16V
R314
100K
L308
120-ohm
C332
0.47uF
50V
+3.3V
1V2
1V8
R319
39K
VLCD_POWER
L314
3.6uH
4.9A
C335
1uF
50V
L310
120-ohm
IC310
MP8706EN-C247-LF-Z
3
SW_2
2
SW_1
4
BST
1
IN
5
EN/SYNC
6
FB
7
VCC
8
GND
C339
100pF
50V
OPT
C337
0.47uF
50V
VLCD_POWER
R321
100K
C321
22uF
25V
R311
22
C326
0.1uF
2V5
2V5
R310
100K
C325
0.1uF
16V
L307
3.3uH
4.1A
L304
120-ohm
C338
0.1uF
50V
+2.5VQ
VLCD_POWER
C334
0.1uF
50V
R318
100K
C368
0.01uF
OPT
C320
10uF
25V
C369
100pF
50V
R338
4.3K
1%
R2
C330
1uF
25V
R335
10K
1%
R1
C340
1000pF
OPT
R336
10K
1%
R1
C314
0.22uF
50V
C356
0.22uF
50V
C355
0.22uF
50V
C357
0.22uF
50V
IC304
SC424MLTRT
PGOOD
22
EN/PSV
25
ENL
28
FB
1
TON
27
AGND_1
3
AGND_2
26
AGND_3
P1
PGND_1
13
PGND_2
14
PGND_3
16
PGND_4
17
PGND_5
18
PGND_6
19
LX_1
15
LX_2
20
LX_3
21
LX_4
P3
LXBST
12
LXS
24
ILIM
23
BST
7
V5V
2
VLDO
6
VIN_1
5
VIN_2
8
VIN_3
9
VIN_4
10
VIN_5
11
VIN_6
P2
VOUT
4
R303
9.1K
1%
R2
R320
8.2K
R323
91K
R324
100K
R337
4.7K
1%
R2
R322
100K
C376
22uF
16V
C317
22uF
16V
C372
22uF
16V
C305
22uF
16V
C318
22uF
16V
C370
22uF
16V
C303
22uF
16V
C307
22uF
16V
C361
22uF
16V
C373
22uF
16V
C377
22uF
16V
C374
22uF
16V
C371
22uF
16V
C316
22uF
16V
C360
22uF
16V
C375
22uF
16V
C310
22uF
16V
OPT
C362
22uF
16V
R317
5.1K
R334
39K
OPT
3D + 240 FRC + TCON BOARD
FRC & FPGA Power Block
3
Vout= 0.8*(1+R1/R2)
Vout= 0.8*(1+R1/R2)
Vout= 0.8*(1+R1/R2)
Vout= 0.8*(1+R1/R2)
MAIN 3.3V & 3.3V IO POWER
1.0V DIGITAL CORE POWER
1.8V DDR SDRAM POWER
10
2009. 11. 13
Vout= 0.8*(1+R1/R2)
Vout= 0.8*(1+R1/R2)
1.2V FPGA CORE POWER
1.8V FPGA DDR SDRAM POWER
1.8V FPGA DDR SDRAM VTT & VREF
Vout= 0.8*(1+R1/R2)
DDR2 SDRAM SOURCE POWER for FPGA
DDR2 SDRAM SOURCE POWER for FRC
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