LG -E410 Service Manual page 90

LGE Internal Use Only
TRK_LO_ADJ
C4037
3.3n
HSED_BIAS1
FM_LO_PMIC
FM_RO_PMIC
C4072
1u
Route to MSM-AGND (pin B10)
HPH_L
HPH_R
EAR_L_PMIC
EAR_R_PMIC
RCV_N
RCV_P
SPK_RCV_N
SPK_RCV_P
U4001
U2000
N17
PA_THERM
M8
PM_TRK_LO
M6
R4019 0
TRK_LO
TRK_LO_ADJ
M14
HSED_BIAS1
M16
HSED_BIAS2
E19
EXT_IN_LP
E21
EXT_IN_RM
F14
C4040 2.2u
LINE_OP
HPA_IN_LP
H14
C4041 2.2u
LINE_ON
HPA_IN_RM
F16
HPA_GNDREF
18n
P18
C4042
SPKR_IN_M
18n
N19
C4062
SPKR_IN_P
H16
HPA_CM_SNS
TP3 H18
HPA_OUT_L
F18
HPA_OUT_R
P20
R4021 12
SPKR_BYP_M
N21
R4023 12
SPKR_BYP_P
R19
FB4000 220
SPKR_OUT_M
P22
FB4001 220
SPKR_OUT_P
TP2
GSM_PA_DAC_REF
FB4001
FB4000 (TP2)
R4023,R4021(TP3)
- 90 - Copyright © 2013 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
U4001
Only for training and service purposes