LG -E400f Service Manual page 127

UNIVA(E400f) Block Diagram _ Audio Block
GPIO28
GPIO41
GPIO127
MIC_BIAS
MIC1P
MIC1N
MIC2N
MIC2P
LINE_L_IP
LINE_R_IP
MSM7225A
EAR1_ON
EAR1_OP
LINE_OP
LINE_ON
HPH_L
HPH_R
AUDIO_I2C_SCL
GPIO119
AUDIO_I2C_SDA
GPIO120
LGE Internal Use Only
3.5PI_KEY_POLE_DET
EAR SENSE
MIC MODE
MIC_BIAS
MIC_1P
MIC_1N
HS_MIC
FM_L
FM_LO_L
WCN 2243
FM_R
FM_LO_R
RCV_N
IN3-
RCV _P
IN3+
LINE_OP
IN2+
LINE_ON
IN2-
TPA2055D3
HPH_L
IN1+
HPH_R
IN1-
SCL
SDA
SWD
DET
MODE
MAX14579E
FM_ANT
FM_HRX_IN
EAR_R
HPR
EAR_L
HPL
SPK_RCV_P
OUT+
SPK_RCV_N
OUT-
LGE400 Audio Block Diagram
- 17 - Copyright © 01 LG Electronics. Inc. All right reserved.
6. BLOCk DIAGRAM
EAR_SENSE_3.5PI
DET_IN
MIC HS_MIC
FM_ANT
3.5PI CON
EAR_R
EAR_L
Only for training and service purposes