LG 55LM860V Service Manual page 58

+1.8V
R1
R313
0
R300
30K
1%
Vout=0.765*(1+R1/R2)
R2
R301
22K
1%
FRC-III DDR3 for 1.5V
+1.5V
R1
R314
3.6K
1%
R302
18K
1%
Vout=0.765*(1+R1/R2)
R2
R303
22K
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.
Copyright © 2012 LG Electronics. Inc. All rights reserved.
Only for training and service purposes
FRC-III AIP for 1.8V
VLCD_POWER
(+12V)
L302
MLB-201209-0120P-N2
C307 C309
IC300
0.1uF 10uF
TPS54327DDAR
R304 16V 25V
[EP]GND
OPT
C300 10K
22pF
50V EN VIN
1 8
C305
VFB VBST
2 7
0.1uF 16V L300
3.6uH
VREG5 SW
3 6
NR8040T3R6N
SS GND
4 5
C301 C303
1uF 3300pF
25V 50V
tss(ms)=[C303(nF)*Vref]/Iss(uA)
VLCD_POWER
(+12V)
+3.3V L303
MLB-201209-0120P-N2
IC301
TPS54327DDAR
R305 C308 C310
C335 [EP]GND
10K 0.1uF 10uF
100pF
16V 25V
50V
OPT
EN VIN
1 8
C306
VFB VBST
2 7
0.1uF 16V L301
3.6uH
VREG5 SW
3 6
NR8040T3R6N
SS GND
4 5
C304
C302
0.01uF
1uF
50V
25V
tss(ms)=[C304(nF)*Vref]/Iss(uA)
LG1122(FRC-III) Power up Sequence
TYP 0.278A
MAX 0.345A
C311
10uF
25V
+1.8V
C312 C315
22uF 22uF
10V 10V
TYP 1.149A
MAX 1.184A
C313
10uF
25V
+1.5V
Vout=0.765*(1+R1/R2)
C314 C316
22uF 22uF
10V 10V
Ton_DIO 20us(min)
Analog I/O Power +1.8V
Digital I/O Power +3.3V
Ton_DDR 40us(min)
DDR3PHY Power +1.5V
Ton_CORE 40us(min)
Core Power +0.9V
FRC-III CORE for 0.9V
VLCD_POWER
(+12V)
L306
MLB-201209-0120P-N2
OPT
C328 C326
10uF 10uF
25V 25V
IC302 L304
+0.9V
AOZ1038PI 3.6uH
[EP]LX
NR8040T3R6N
PGND NC_2
1 8
R1
+3.3V
VIN NC_1
C334 R316 2 7
100pF 0 R310
C322
50V AGND EN 10K
R306 0.1uF 3 6
OPT
4.7K 16V
C320
1% FB COMP R312
4 5
3.3K
R2 4700pF
50V
R307
22K
1%
Vout=0.8*(1+R1/R2)
FRC-III I/O for 3.3V
+3.3V
C325
IC303
R1
0.1uF
TPS54327DDAR
R308 16V
C318 R311 [EP]GND
68K
22pF 10K
1%
50V
R315 EN VIN
1 8
5.1K
1%
C323
VFB VBST
2 7
0.1uF 16V
R2 VREG5 SW
3 6
R309
NR8040T3R6N
SS GND
22K
4 5
1%
C319 C321
1uF 0.01uF
25V 50V
tss(ms)=[C321(nF)*Vref]/Iss(uA)
120Hz Back-End Board
TYP 2.521A
MAX 3.124A
+0.9V
C329 C332
C336
22uF 22uF 3300pF
10V 10V 50V
OPT
TYP 0.043A
MAX 0.046A
VLCD_POWER
(+12V)
L307
MLB-201209-0120P-N2
C327 C330
10uF 10uF
25V 25V
OPT
+3.3V
L305
3.6uH
C331 C333
22uF 22uF
10V 10V
OPT
2011. 07. 05
POWER 3
6
LGE Internal Use Only