LG 55LW9800 Service Manual page 52
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Also See for 55LW9800:
- Owner's manual (170 pages) ,
- Specifications (2 pages) ,
- Manual del usuario (140 pages)
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VLCD_POWER
(+12V)
L301
CIS21J121
C303
C300
COMP
0.1uF
22uF
25V
50V
R301
10K
C306
2200pF
50V
+3.3V_Normal
VLCD_POWER
(+12V)
L300
CIS21J121
DCDC_Revision
IC300-*1
AOZ1072AI-3
PGND
LX_2
1
8
VIN
LX_1
2
7
C307
AGND
EN
0.1uF
3
6
16V
C301
C305
FB
COMP
4
5
10uF
10uF
25V
25V
+2.5V_Normal
+3.3VD
R300
0
1/10W
R303
47K
VLCD_POWER
(+12V)
C302
C304
10uF
0.1uF
10V
16V
R304
1.5K
1%
R305
Vout=0.6*(1+R1/R2)
1K
1%
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.
+1.0V_Normal
+3.3VD
R306
47K
MAX 2.92A
C308
0.1uF
16V
VIN
EN
6
L303
IC302
3.6uH
FB
LX
4
7
AOZ1024DI
5
R310
2.7K
1%
EAN60660601
C318
C312
C315
R1
3300pF
22uF
22uF
R311
50V
10V
10V
1.2K
OPT
1%
R312
10K
R2
1%
Vout=0.8*(1+R1/R2)
MAX 435mA
+3.3VD
DCDC_Old
IC300
AOZ1072AI
L302
3.6uH
PGND
LX_2
1
8
VIN
LX_1
R309
2
7
47K
C310
R1
R308
R313
C313
C316
C319
AGND
EN
0.1uF
18K
27K
3
6
16V
1%
100pF
22uF
22uF
OPT
50V
10V
10V
OPT
FB
COMP
R314
4
5
4.3K
1%
R307
C311
43K
2200pF
EAN60922901
R315
R2
10K
1%
Vout=0.8*(1+R1/R2)
MAX 405mA
IC301
+2.5V
AP2132MP-2.5TRG1
[EP]
1
8
PG
GND
R316
R2
16K
2
7
1%
EN
ADJ
R317
51K
R1
3
6
1%
VOUT
VIN
C309
0.1uF
4
5
16V
NC
VCTRL
C314
C317
C320
10uF
10uF
0.1uF
EAN61387601
25V
25V
16V
VLCD_POWER
(+12V)
L304
CIS21J121
+1.0V
C321
0.1uF
16V
C322
C324
10uF
10uF
25V
25V
VLCD_POWER
(+12V)
L305
CIS21J121
C323
C325
10uF
10uF
25V
25V
2D to 3D LG1131 Core
VLCD_POWER
(+12V)
L308
CIS21J121
OPT
C338
C339
10uF
10uF
25V
25V
OPT
OPT
+1.5V_DDR0
MAX 782mA
+2.5V
DCDC_Old
IC303
AOZ1072AI
L306
3.6uH
PGND
LX_2
1
8
VIN
LX_1
R319
2
7
47K
C326
R1
0.1uF
R321
C328
C332
C334
AGND
EN
6.2K
16V
3
6
0.1uF
1%
100pF
22uF
16V
50V
10V
OPT
FB
COMP
R322
4
5
2.7K
1%
R302
C329
15K
2200pF
EAN60922901
R323
R2
10K
1%
Vout=0.8*(1+R1/R2)
+1.5V_DDR1
MAX 782mA
+2.5V
DCDC_Old
IC304
AOZ1072AI
L307
3.6uH
PGND
LX_2
1
8
VIN
LX_1
R320
2
7
47K
C327
R1
0.1uF
R324
C330
C333
C335
AGND
EN
6.2K
16V
3
6
0.1uF
1%
100pF
22uF
16V
50V
10V
OPT
FB
COMP
R325
4
5
2.7K
1%
R318
C331
15K
2200pF
EAN60922901
R326
R2
10K
1%
Vout=0.8*(1+R1/R2)
MAX 467mA
+1.0V_2D3D
+2.5V
OPT
IC305
AOZ1072AI
L309
3.6uH OPT
PGND
LX_2
1
8
VIN
LX_1
R328
2
7
47K
R329
OPT
2K
C340
1%
OPT
0.1uF
C341
R1
C343
C344
AGND
EN
16V
3
6
0.1uF
R330
100pF
22uF
OPT
16V
1.5K
OPT
50V
10V
1%
OPT
OPT
OPT
FB
COMP
4
5
R327
C342
5.1K
2200pF
EAN60922901
OPT
OPT
R331
R2
OPT
12K
1%
Vout=0.8*(1+R1/R2)
+1.5V0
DCDC_Revision
IC303-*1
AOZ1072AI-3
PGND
LX_2
1
8
VIN
LX_1
2
7
C336
22uF
AGND
EN
3
6
10V
FB
COMP
4
5
+1.5V1
DCDC_Revision
IC304-*1
AOZ1072AI-3
PGND
LX_2
1
8
VIN
LX_1
2
7
AGND
EN
3
6
C337
22uF
FB
COMP
10V
4
5
C345
22uF
10V
OPT
LG1121 GP3
2010. 10. 20
LG1121_POWER
3
7
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