LG -E405 Service Manual page 90

SPK_RCV_P
SPK_RCV_N
VA7000
TRK_LO_ADJ
Route to MSM-AGND (pin B10)
Route to 3.5pi GND
R4020
EAR_GND
0
SPK_RCV_N
SPK_RCV_P
LGE Internal Use Only
TP1
CN7000
1
2
HIR-02A57-0000AA
VA7001
R4018
0 R4019
TRK_LO
C4037
3.3n
C4040
LINE_OP
C4041
LINE_ON
18n
C4042
HPH_L
18n
C4062
HPH_R
TP3
EAR_L_PMIC
EAR_R_PMIC
R4021 12
RCV_N
R4023 12
RCV_P
FB4000 220
FB4001 220
TP2
U4001
CN7000(TP1)
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
C4042,C4062(TP3)
FB4000,FB4001(TP2)
- 90 - Copyright © 2012 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
Only for training and service purposes