LG E475F Service Manual page 85

LGE Internal Use Only
TRK_LO_ADJ
C4072
HSED_BIAS1
1u
Route to MSM-AGND (pin B10)
Route to 3.5pi GND
0
EAR_GND
R4020
GND
SPK_RCV_N
SPK_RCV_P
U4001
C4041,C4040(TP2)
- 85 -
3. TROUBLE SHOOTING
KPD_PWR_N
TP4005
TP4006
PMIC_SSBI
nPON_RST
TP4007
PM_INT_N
R4018
0 R4019
TRK_LO
C4037
3.3n
FM_LO_PMIC
TP2
FM_RO_PMIC
C4040
LINE_OP
C4041
LINE_ON
18n
C4042
HPH_L
18n
C4062
HPH_R
EAR_L_PMIC
EAR_R_PMIC
R4021 12
RCV_N
R4023 12
RCV_P
FB4000 220
FB4001 220
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
K11
KPD_PWR_N
M10
RESIN_N
K15
OPTION1
C11
SBDT
H8
PON_RESET_N
H10
PM_INT_N
N17
PA_THERM
M8
PM_TRK_LO
M6
0
TRK_LO_ADJ
M14
HSED_BIAS1
M16
HSED_BIAS2
E19
EXT_IN_LP
E21
EXT_IN_RM
F14
2.2u
HPA_IN_LP
H14
2.2u
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