LG -E445 Service Manual page 182

4-4. HW Block Diagram : Audio Sub System
[LG-E445] HW Block Diagram : Audio Sub System
MT6575
VMIC
AVDD25_VMIC
MIC_P
AU_VIN0_P
MIC_N
AU_VIN0_N
Main MIC
AU_VIN2_P
AU_VIN2_N
EARMIC_BIAS
AUX_IN8
EARMIC_P
AU_VIN1_P
EARMIC_N
AU_VIN1_N
Headset
LGE Internal Use Only
Battery
+VBAT
+1V8_VIO_MTK
VIO18
RCV_SPK_P
HSP
RCV_SPK_N
HSN
HPH_L
HPLP
HPH_R
HPRP
I2C_SENSOR_SDA
SDA0
I2C_SENSOR_SCL
SCL0
FM_AUOUT_R
FMINR
FM_AUOUT_L
FMINL
For recording
I2S1_CLK
I2S1_WS
I2S1_DAT
TPA2058D3
SPVDD
OUT+
HPVDD
OUT-
IN3+
IN3-
IN2+
IN2-
HPL
IN1+
Headset
HPR
IN1-
SDA
SCL
MT6620
FM_AUOUT_R
FM_RX_IN_P
FM_AUOUT_L
I2S_CLK
I2S_WS
I2S_DATA_IN
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6. BLOCK DIAGRAM
SPK (Dual_mode)
SPK_OUT_P
SPK_OUT_N
EAR_L
EAR_R
Only for training and service purposes