LG LG-A270 - Page 54

4. TROUBLE SHOOTING
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Copyright © 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Figure 4.5.4 Power block of LG-A270
C122
1UF
VIO18
G4 J4
H15 C2
B3 K8 K7 E2 F2
D1
G3 B2 B1
B4 D4 C1 E1
C3
D2 T8 L14
L7 M12 H5 J1
M9 M8
A2 D5
K4 G2 H2 R2 B11 B5 B6 C8 F4 E3
H1 A3
T4 A9 B10 H17 C13 B9
A8 B7
E12
D16
D12
C15
C12
B12
A12
B8
APC
GND1_1
GND1_2
GND1_3
GND1_4
GND1_5
GND1_6
AVDD12P_AUD
AVDD18_AUD
AVDD28_AFE
AVDD28_HF AVDD28_LF
AVDD28_PLL AVDD28_RFE
AVDD33_USB
AVDD43_VA_VRF
AVDD43_VCORE
AVDD43_VD1
AVDD43_VD2 AVSS12_AUD
AVSS12N_AUD_DAC AVSS12N_AUD_LDO
AVSS28_ABB AVSS33_USB
AVSS43_DRV
AVSS43_LDOS
AVSS43_VCORE
AVSS43_VRF
VA
VCCK12_CORE1 VCCK12_CORE2
VCORE
VCORE_FB
VDD18SF_IO
VDD28_IO
VDD28_IO_BPI
VDD28_RTC
VDRV
VFM
VIBR
VIO18 VIO28
VREF
VRF
VRF_S
VRTC
VSF
VSIM
VSIM2
VSS_DIG1 VSS_DIG2
VTCXO
VUSB
DVDD28_IO
DVDD43_SPK1
DVSS43_SPK2
VCORE
C111
1u
1UF C116
VIO18
VIO28
VUSB
1UF C102
VA
C1031UF
C117
1u
1UF
C106
VIO28
C105
1UF
C1201UF
VCORE
VRTC
C115
4.7u
VRF
C118
2.2u
VBAT
C1122.2u
VBAT
2.2u C100
C109
1u
VTCXO
VA VSF
VSIM1
VUSB
VFM VSIM2
VRTC
VTCXO
C114
0.1uF
VRF
C110
0.1uF
VSF
C1191UF
C121
1UF
C1342.2u
C133
0.1u
C113
10u
C108
4.7u
C1042.2u
VIB_P
VBAT
VIO28
TP4
TP7
TP8
TP3
TP5
TP1
TP9
TP10
TP6