LG -P940 Service Manual page 178

Proxi. Ambiant Sensor
VSEL_1.8V
R1104
4.7K U1101
1
I2C3_SDA
2
PROX_INT
3
4
AUD_RCV_P
AUD_RCV_N
Must Check Schematic
MICBIAS
SMIC_N
SMIC_P
FB1107
LGE Internal Use Only
SENSOR_3.0V
PROXI_3.0V
8
SDA VDD
7
INT SCL I2C3_SCL
6
LDR GND
5
LEDK LEDA
C1109 C1110
1u 1u
Receiver
CN1101
1
2
SUB MIC
TOP
MIC1101
1
P
2
G1
3
G2
4
O
C1100
27p GOERTEK
1800
R1110
DNI
3.5pi EAR JACK Connector
HS_MIC|HOOK_ADC
HOOK_ADC
HS_MIC
R1112 1800
EAR_L
R1101
HS_MICBIAS
2.2K
C1102 C1103 C1101
R1113
1800
10u 470p 0.1u EAR_R
C1116 C1117
R1111
1n 1n
10K
VSEL_1.8V
ZD1105
470K
R1106
S
2
EAR_SENSE D
3
G
R1107 1
47K
Q1101
Touch Connector
VSEL_1.8V
Pin Name Pin Name
1 GND 6 M_ID(GND)
2 SCL 7 VIO(AVDD)
3 SDA 8 VDD
4 INT 9 Reset
I2C2_SCL
I2C2_SDA
5 GND 10 GND
TOUCH_INT_N
Touch LDO
VBAT
TOUCH_LDO_EN
- 178 -
FB1101 1800
MIC
FB1102 1800 GND
SPK_R
FB1103 1800 SPK_L
J1101
S/W_Detect
FB1104 1800
D1106
1n C1106
FM_ANT
FB1105 C1107
1800
22p
HS_MIC_GND
D1101
ZD1101
TOUCH_3.3V
CN1102
1 10
2 9
TOUCH_RESET
3 8
4 7
VSEL_1.8V
5 6
R1109
TOUCH_Maker_ID
10
C1112 C1111
1u
2.2u
TOUCH_3.3V
U1102
4 1
VDD VOUT
3 2
CE GND
C1113
1u
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7. CIRCUIT DIAGRAM
Only for training and service purposes