LG -E405 Service Manual page 86

SPK_RCV_P
SPK_RCV_N
VA7000
TRK_LO_ADJ
Route to 3.5pi GND
R4020
EAR_GND
SPK_RCV_N
SPK_RCV_P
LGE Internal Use Only
TP1
CN7000
1
2
HIR-02A57-0000AA
VA7001
R4018
0
TRK_LO
C4037
3.3n
LINE_OP
LINE_ON
Route to MSM-AGND (pin B10)
C4042
HPH_L
C4062
HPH_R
0
EAR_L_PMIC
EAR_R_PMIC
R4021
RCV_N
R4023
RCV_P
FB4000
FB4001
TP2
FB4000,FB4001(TP2)
U4001
CN7000(TP1)
M8
PM_TRK_LO
M6
R4019 0
TRK_LO_ADJ
M14
HSED_BIAS1
M16
HSED_BIAS2
E19
EXT_IN_LP
E21
EXT_IN_RM
F14
C4040 2.2u
HPA_IN_LP
H14
C4041 2.2u
HPA_IN_RM
F16
HPA_GNDREF
P18
18n
SPKR_IN_M
N19
18n
SPKR_IN_P
H16
HPA_CM_SNS
H18
HPA_OUT_L
TP3
F18
HPA_OUT_R
P20
12
SPKR_BYP_M
N21
12
SPKR_BYP_P
R19
220
SPKR_OUT_M
P22
220
SPKR_OUT_P
R4023,
R4021
(TP3)
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4. TROUBLE SHOOTING
U2000
Only for training and service purposes