LG -P715 Service Manual page 124

Test Points from Schematics
+VPWR +VPWR
CHANGE 1215
C4020 C4021
22u 33p
CHANGE 1208
C4025
1u
Remove Cap. 0819
0.1u
P2
TCXO_IN
F2
XTAL32K_IN
E1
XTAL32K_OUT
N3
TCXO_A0_EN
M4
TCXO_OUT_A0
K3
TCXO_D0_EN
N9
TCXO_OUT_D0
N5
TCXO_D1_EN
N7
TCXO_OUT_D1
E5
SLEEP_CLK0
K9
PS_HOLD
K13
CBLPWR_N
K11
KPD_PWR_N
M10
RESIN_N
K15
OPTION1
C11
SBDT
H8
PON_RESET_N
H10
PM_INT_N
N17
PA_THERM U4007
M8
PM_TRK_LO
M6
TRK_LO_ADJ
M14
HSED_BIAS1
M16
HSED_BIAS2
E19
EXT_IN_LP
E21
EXT_IN_RM
F14
HPA_IN_LP
H14
HPA_IN_RM
F16
HPA_GNDREF
P18
SPKR_IN_M
N19
SPKR_IN_P
H16
HPA_CM_SNS
H18
HPA_OUT_L
F18
HPA_OUT_R
P20
SPKR_BYP_M
N21
SPKR_BYP_P
R19
SPKR_OUT_M
P22
SPKR_OUT_P
Test Points from Layouts
VREG_TOUCH_3.0V
LGE Internal Use Only
+VPWR VREG_MSME_1.8V
C4022 4.7u
C4023 4.7u
C4024 10u
C4026 4.7u
C4027 4.7u
C4028 0.1u
C4031 0.1u
C4032 0.1u
C4033 0.1u
C4034 0.1u
C4035 0.1u
C4036
A9
VSW_S1_1
B8
VSW_S1_2
B10
VREG_S1
A17
VSW_S2_1
B16
VSW_S2_2
B18
VREG_S2
F22
VSW_S3_1
F20
VSW_S3_2
G21
VREG_S3
B22
VSW_S4
B20
VREG_S4
C21
VREG_L1
D20
VREG_L2
C1
VREG_L3
C3
VREG_L4
E3
VREG_L5
B2
VREG_L6
K23
VREG_L7
R5
VREG_L8
P6
VREG_L9
P10
VREG_L10
R9
VREG_L11
N1
VREG_L12
K1
VREG_L13
G3
VREG_L14
M2
VREG_L15
G1
VREG_L16
A3
VREG_L17
B4
VREG_L18
B6
VREG_L19
K21
NCP_CTC1
H20
NCP_CTC2
G19
VREG_NCP
M18
NCP_FB
R17
LED_ATC
B14
VIB_DRV_N
VIB_DRV_N
C13
GND_DRV
Touch
Connector
TP1
(C4051)
U4007
L4002
2.2u
L4003
2.2u
VSNS_MSMC2_1.1V
L4004 2.2u
L4005 2.2u
TP1
R4030
0
R4031
0
- 124 - Copyright © 2013 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
VREG_MSMC1_1.1V
VREG_MSMC2_1.1V
VREG_MSME_1.8V
VREG_SMPS_2.1V
C4039 C4040
22u 22u C4041 C4042
22u 22u
VREG_TOUCH_3.0V
CHANGE 1030
VREG_PADAC_2.05V
VREG_MSMA2_1.2V
VREG_PLL_1.1V
+1V3_MSM_A3_WCN
+1V2_WLAN_WCN
VREG_MSMA1_2.6V
VREG_TCXO_2.85V
VREG_USB_1.8V
VREG_LCD_2.8V
+1V8_WLAN_TCXO
VREG_P3_2.85V
VREG_SDCARD_2.85V
VREG_USB_3.3V
VREG_USIM2_2.85V
CHANGE 1009
VREG_USIM1_2.85V
+3V_WLAN_WCN
VREG_RF_2.7V
+1V2_MSM_A2_WCN
Only for training and service purposes