LG -P895 Service Manual page 174

Lower RFPCB
SPEAKER, MOTOR, KEY LED , MIC
CN13000
1
2
SPK_P
3
SPK_N
4
5
F_LED_MOTOR_P
6
F_LED_MOTOR_M
7
Rev.C for ESD
USB RECOVERY
+1V8_TPS_VIO
Rev.B
4.7K -> 47K
U13000
1
VOL_KEY_UP
B
2
GND
3
A
Rev.B
Must Check Schematic
Touch LDO
VBAT
U13001
4 1
VIN VOUT
3 2
TOUCH_LDO_EN2
STBY GND
C13017
1u
10V
Rev.C
+1V8_TPS_VIO
GEN2_I2C_SCL
GEN2_I2C_SCL_SW
U13003
1
VCC 2B0
GEN2_I2C_SDA_SW 2
1B1 GND
GEN2_I2C_SDA
Rev.B
C13020 Must Check Schematic
0.1u
LGE Internal Use Only
Power key FPCB
POWER KEY, POWER_LED
VBAT
14
13
5 6
12
4 7
11
3 8
2012.05.03
10 Rev.B
6 5 4 2 9
MAIN_MIC_N
Q13000
9
1 10
MAIN_MIC_P
CN13002
8
MAIN_MIC_BIAS
1 2 3
R13005
KEY_LED_EN
130
C13001
Rev.1.0
0.1u
KEY MATRIX Check!
VOLUME SIDEKEY
+1V8_TPS_VIO
KEY_C[0]
VOL_KEY_UP R13009
KEY_C[1]
Rev.B
R13010
VOL_KEY_DOWN
4.7K -> 47K
KEY_R[0]
6
VOL_KEY_DOWN
C
5
VCC
4
USB_RECOVERY
Y
C13012
0.1u
TOUCH_1.8V VBAT
TOUCH_3.0V
U13002
4 1
VIN VOUT
3 2
TOUCH_LDO_EN
STBY GND
2
C13014 C13018
C13013
1u 1u
1u
1
Rev.C
GEN2_I2C_SCL_SW
GEN2_I2C_SDA_SW
TOUCH_INT_N
TOUCH_1.8V
7
6
Control Input(Sn) Function
LOW nB0 Connected to nA
HIGH nB1 Connected to nA
VBAT
C13003
10n
FPCB Schematic Check!
SUB_MIC_P
PWR_ON_KEY
SUB_MIC_N
R13006
130 SUB_MIC_BIAS
6 5 4
Q13001
EAR_L
EAR_R
R13003
1 2 3 PWR_LED_N
130
C13002 EAR_MIC_3.5PI
Rev.1.0
2012.05.03
0.1u
Rev.B
EAR_GND
Change
2012.04.10
5 6
470
4 7
470
3 8
2 9
1 10
CN13003
COL[0]
ROW[0] Vol Up
ROW[1]
Hot Key
5" TOUCH CONN.
TOUCH_3.0V
TOUCH_1.8V
TOUCH_1.8V
Rev.1.0
2 2
C13015 C13016
47K -> 10K Delete R. Rev.C
5 6 2.2u 1u
TOUCH_RESET_N 1 1
4 7
3 8
2 9
TOUCH_MAKER_ID
1 10
CN13004
1
2
- 174 -
Earjack FPCB
earjack, hot key, prox&ALS, 2nd MIC
+1V8_TPS_VIO +1V8_TPS_VIO +3V0_VSDMMC3
Delete
2012.04.10
CN13001
1 24 Rev.B
4.7K -> 47K
FB13000 2 23
KEY_R[1]
C13004 27p 120
3 22
R13002
C13005 33p C13006 0.1u 150
4 21
5 20
6 19
7 18
8 17
9 16
10 15 2012.04.19
11 14
12 13
Delete
C13009 C13010
2012.04.20
33p 0.1u
Delete C13011
2012.04.06
2012.04.19
COL[1]
Vol Down
micro USIM(push push)
VSIM_2.9V
R13014
1 2
15K
1
1
R13017
+3V0_USIM 2
0
USIM_RESET/
NFC_SWP
R13019
1 2 1 2
USIM_CLK
USIM_DATA 22
USIM_DETECT_N
R13021
+1V8_TPS_VIO
2
C13019
DNI
0.1u
Rev.B
1
Copyright © 2012 LG Electronics. Inc. All right reserved.
7. CIRCUIT DIAGRAM
KEY_C[0]
HOT_KEY
I2C_SENSOR_SDA
GEN1_I2C_SDA
PROX_AMBIENT_INT
I2C_SENSOR_SCL
GEN1_I2C_SCL
FB13001
EAR_SENSE_3.5PI
1800
R13004
PROXI_3.0V
0
S13000
2
1 11
COMMON GND1
C1 VCC GND2 12
C5 13
GND11 GND3
C2 14
RST GND4
C6 15
VPP GND5
C3 16
CLK GND6
C7 17
I/O GND7
C4 18
RFU1 GND8
C8
RFU2
10
CD
Normal : on
Inserting Card : off
Only for training and service purposes