LG LG-P715 - Page 124

4. TROUBLE SHOOTING
- 124 -
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Test Points from Schematics
Test Points from Layouts
TP1
VREG_TOUCH_3.0V
(C4051)
U4007
Touch
Connector
C4020
22u
C4037
1u
R4030
0
0
R4031
R4008
22K
L4005 2.2u
C4025
1u
L4004 2.2u
C4040
22u
C40511u C40521u C40571u C40581u
1u C4059 1u C4060 1u C4061
C40621u C40631u
1u C4064 1u C4065 1u C4066
C40671u C40681u C40532.2u C40542.2u C40552.2u
2.2u C4056
C40692.2u
C4024 10u
+1V3_MSM_A3_WCN
+1V2_WLAN_WCN
+1V8_WLAN_TCXO
+1V2_MSM_A2_WCN
VREG_TOUCH_3.0V
U4007
A5 H4 H2 R7 P8 D2 D4 D22 A13 H22 C23 G23 A19 B12 A11 K5 G5 N15 R13 P14 N13 N11 R11 P12 R15 P16 M22 M20 N23 F4
C13
B14
R17
M18
G19
H20
K21
B6
B4
A3
G1
M2
G3
K1
N1
R9
P10
P6
R5
K23
B2
E3
C3
C1
D20
C21
B20
B22
G21
F20
F22
B18
B16
A17
B10
B8
A9
P22
R19
N21
P20
F18
H18
H16
N19
P18
F16
H14
F14
E21
E19
M16
M14
M6
M8
N17
H10
H8
C11
K15
M10
K11
K13
K9
E5
N7
N5
N9
K3
M4
N3
E1
F2
P2
P4 H6 R3
H12 G13 G11 F12 A23
A1 R1
A21 E23 A15
A7
K19
D8 C5
F10
F8 F6
D10 E11
C7 C9 E9 D6
R23 R21 D18 C19 C17 C15 D16 E15 D14 E13
MPP1 MPP2 MPP3 MPP4 MPP5 MPP6 MPP7 MPP8_XO_THERM GND_SPKR_1 GND_SPKR_2 GPIO_1 GPIO_2 GPIO_3 GPIO_4 GPIO_5 GPIO_6 GPIO_7 GPIO_8 GPIO_9 GPIO_10 GPIO_11 GND_NCP GND_S1 GND_S2 GND_S3 GND_S4 GND_1 GND_2 GND_3 GND_4 GND_5 GND_6 GND_7 GND_XTAL19M_OUT GND_XOADC GND_TCXO
TCXO_IN
XTAL32K_IN
XTAL32K_OUT
TCXO_A0_EN
TCXO_OUT_A0
TCXO_D0_EN
TCXO_OUT_D0
TCXO_D1_EN
TCXO_OUT_D1
SLEEP_CLK0
PS_HOLD
CBLPWR_N
KPD_PWR_N
RESIN_N
OPTION1
SBDT
PON_RESET_N
PM_INT_N
PA_THERM
PM_TRK_LO
TRK_LO_ADJ
HSED_BIAS1
HSED_BIAS2
EXT_IN_LP
EXT_IN_RM
HPA_IN_LP
HPA_IN_RM
HPA_GNDREF
SPKR_IN_M
SPKR_IN_P
HPA_CM_SNS
HPA_OUT_L
HPA_OUT_R
SPKR_BYP_M
SPKR_BYP_P
SPKR_OUT_M
SPKR_OUT_P
VSW_S1_1
VSW_S1_2
VREG_S1
VSW_S2_1
VSW_S2_2
VREG_S2
VSW_S3_1
VSW_S3_2
VREG_S3
VSW_S4
VREG_S4
VREG_L1
VREG_L2
VREG_L3
VREG_L4
VREG_L5
VREG_L6
VREG_L7
VREG_L8
VREG_L9
VREG_L10
VREG_L11
VREG_L12
VREG_L13
VREG_L14
VREG_L15
VREG_L16
VREG_L17
VREG_L18
VREG_L19
NCP_CTC1
NCP_CTC2
VREG_NCP
NCP_FB
LED_ATC
VIB_DRV_N
GND_DRV
VDD_MSM_IO
VDDANA_SPKR
VDDIN_SPKR_1
VDDIN_SPKR_2
VCHG_1 VCHG_2
VPH_PWR1 VPH_PWR2
BAT_FET_N
VBAT
VCOIN
VREF_THERM
BATT_THERM
REF_BYP
REF_GND
VDD_S1_1 VDD_S1_2
VDD_S2 VDD_S3 VDD_S4
VDD_NCP_L7
VDD_SMPS
VDD_L1_L2
VDD_L3_L4_L5_L6_1 VDD_L3_L4_L5_L6_2
VDD_L8_L9_L10_L11_1 VDD_L8_L9_L10_L11_2
VDD_L12_L13_L14_L15_L16_1 VDD_L12_L13_L14_L15_L16_2
VDD_L17_L18_L19
+VPWR+VPWR
4.7uC4022
+VPWR VREG_MSME_1.8V
0.1u
C4036
VREG_USB_1.8V
VREG_TCXO_2.85V
C4028 0.1u
0.1u
C4032
VREG_MSMA1_2.6V
VREG_PLL_1.1V
VREG_MSMA2_1.2V
VREG_PADAC_2.05V
VREG_LCD_2.8V
VREG_P3_2.85V
VREG_SDCARD_2.85V
VREG_USB_3.3V
VREG_USIM2_2.85V
VREG_USIM1_2.85V
+3V_WLAN_WCN
VREG_RF_2.7V
L4003
2.2u
C4041
22u
22u
C4039
C4042
22u
VREG_MSMC1_1.1V
VREG_MSMC2_1.1V
VREG_MSME_1.8V
VREG_SMPS_2.1V
C4035 0.1u
0.1uC4034
0.1uC4033
0.1uC4031
C4027 4.7u
C4026 4.7u
C4021
33p
C4023 4.7u
L4002
2.2u
VSNS_MSMC2_1.1V
VCOIN
VBAT_TEMP
VIB_DRV_N
Remove Cap. 0819
CHANGE 1009
CHANGE 1030
CHANGE 1208
CHANGE 1215
TP1