LG Nexus 5 Service Manual

3. TROUBLE SHOOTING
- 161 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
TP2
TP1
TP4TP3
TP5
TP6
ZD16004ZD16003
ZD16006ZD16005C1600133nVA16001
ZD16002
C16002
1uVA16000VA16002
ZD16001ZD16000
ZD16007
+1V8_VREG_LVS3
+3V1_VREG_L22
C160001u
+1V8_VREG_LVS3R16022 10K
FL16002
1
5
2
63
7
4
8
9
10
FL16000
6 5
3
2
4 1
D1D4D2D3G1
G2
FL16001
10
9
8
4 7
3
6
2
5
1
R1600110KVA16003
CN16001
21
20
22
19
23
18
24
17
25
16
26
15
27
14
28
13
29
12
30
11...

3. TROUBLE SHOOTING
- 162 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
3.12 Vibrator Troubleshooting
Check out the setting menu on the phone. If not, check Test points shown on the pictures.
Yes
Yes
START
Yes
No
No
No
Is the circuit powered?
Vibrator works
Check TP 1, 2
TP11001
Change The main board
Change The Vibrator
Vibration OK?
Trun on the phone
Follow the power ONtrouble shooting   

3. TROUBLE SHOOTING
- 163 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
< Motor Drover IC – ISA1000A (Main PCB) >
CN11002CN11001
VB11000
EAU62024101
MVMF-A303FS1
MOTOR_M
MOTOR_P
CN11001, CN11002 are Motor Dummy plates.
should be Placed on the Motor PAD!!13.04.15
TP1TP2
U11000
ISA1000A
11 10
5
4 6
3 7
2 8
1
9
EXP1
ENVDPPWMGNDMODEVDDGAIN-VDN
EXP2EXP3
1u C11011
10n
C11010
+3V3_VREG_L19
TP11001C11004
1u
10K
R1100
4
DNI
R11012...

3. TROUBLE SHOOTING
- 164 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
Mainboard bottom
TP2
TP1
TP11001   

3. TROUBLE SHOOTING
- 165 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
3.13 Gyro/Accel Sensor Troubleshooting
When the Gyro/Accel sensor does not work, the reason is chip problem. If the Gyro sensor IC is damaged, it will do not 
work even thought power is supplied and MSM8974 controls normally. Therefore if the Gyro sensor is damaged, change 
the Gyro/Accel sensor IC or main board.
# Gyro and Accel functions are combined to one...

3. TROUBLE SHOOTING
- 166 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
< Gyro/Accel Sensor Circuit >
< Main board _Bottom >
U11001 (MPU6515)
Gyro / Accel Sensor
+1V8_VREG_LVS1
C11003
100nC11014
10n
C11015
0.1u
0.1u
C11013
+1V8_VREG_LVS1
U11001
EAN62826901MPU-6515
16
22 19
20
21
23
24
18
17
9
8 10
7 11
6
12
5
13
4
14
3
15
2
1
NC1NC2
NC8
NC3
NC7
NC4
VDD
NC5
INT
NC6
FSYNC
AUX_CL
REGOUT
VDDIOSDO/AD0
NC10GND
SDA/SDISCL/SCLK...

3. TROUBLE SHOOTING
- 167 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
3.14 Compass sensor troubleshooting
When the Compass sensor does not work, the reason is chip problem. If the Compass sensor IC is damaged, it will do not 
work even thought power is supplied and MSM8974 controls normally. Also, Compass is connected to Gyro/Accel sensor 
directly. Therefore if the Compass sensor does not work, change the Compass sensor IC, and...

3. TROUBLE SHOOTING
- 168 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
< Compass Sensor >
< Main board _Bottom >
U11005 (AK8963C)
Compass Sensor
R1101510K
EAN62333101AK8963C U11005
A2 A1
B4
C4
C3
D4
A4 C2
B1 B3
D2
C1
A3
D1
CAD0
SCL/SK
VSS
CAD1RSV
VDD
TST1
SDA/SI
RSTN
TRGVIDSO
DRDYCSB
+3V0_VREG_L17
TP11005
0.1u C11018
C11017
0.1u
+1V8_VREG_LVS1
0.1u C11016
+1V8_VREG_LVS1
COMPASS_DRDY
+3V0_VREG_L17
COMPASS_OUT_I2C_SD A...

3. TROUBLE SHOOTING
- 169 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
3.15 Barometer sensor troubleshooting (Pressure Sensor )
When the Barometer sensor does not work, the reason is chip problem. If the Barometer sensor IC is damaged, it will do 
not work even thought power is supplied and MSM8974 controls normally. Also, Barometer is connected to Gyro/Accel 
sensor directly. Therefore if the Barometer sensor does not work, change...

3. TROUBLE SHOOTING
- 170 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
< Barometer Sensor >
< Main board _Bottom >
U11003 (BMP280)
Barometer Sensor
EAN62695801U11003
BMP280
8
4 3 7
5 6
2
1GND1
CSB
VDDIO
SDO
GND2
SDI
SCK
VDD
+3V0_VREG_L17
+1V8_VREG_LVS1
0.1u C11001C11002
0.1u
COMPASS_OUT_I2C_SDACOMPASS_OUT_I2C_SCL
U11003