Lcd Power Circuit Diagram - LG DP471B Service Manual

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11. LCD POWER CIRCUIT DIAGRAM

+5V_BF
VAA5
R181
R180
4.7/F/0603
200K/F/0603
C201
R186
NC
+5V_V
Q43
FDN302P
S
R277
100K/J/0402
R278
10K/J/0402
Q44
B
PWR_5V
PMBS3904
GND_DC
+3.3V_SYS
C19
10U/6.3V/0805
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
VCC_BIAS
+3.3V_SYS
L48
C213
C205
L55
+5V_BF
D
L49
C344
C345
C346
L50
GND_DC
U16
LD1117AL-1.8V/SOT-223
3
2
VIN
VO
4
VO2
C64
0.1U/25V/0603
10U/6.3V/0805
IO_VCC3
0/J/0603
C177
C176
10U/6.3V/0805
0.1U/25V/0402
ADC_VCC3
0/J/0603
C225
C215
10U/6.3V/0805
0.1U/25V/0402
PLL_VCC3
0/J/0603
C195
C178
10U/6.3V/0805
0.1U/25V/0402
VDAC_VCC3
0/J/0603
C190
C181
10U/10V/0805
10U/10V/0805
L4
0/J/0603
+1.8V_SYS
C23
C17
C22
NC/10U/6.3V/0805
0.1U/25V/0402
3-41
3-42
+1.8V_SYS
DVDD1.8V
L46
0/J/0603
C166
C169
0.1U/25V/0402
LGE Internal Use Only

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