LG Nexus 5 Service Manual

3. TROUBLE SHOOTING
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C9004
2.2uC9002100n
+1V8_8M_VDDIO
CN9000
GB042-30S-H10-E3000 ENBY0040701 16
15 17
14 18
13 19
12 20
11 21
10 22
9 23
8 24
7 25
6 26
5 27
4 28
3 29
2 30
1
ZD9001C9009
4.7u
ICMEF104P101MFR
FL9001
EAM62630501
10
9 8
4
7
3 6
2 5
1
EAH61892901RCLAMP7522T
D9000
4 3
5
2
1
2.2u
C9003
MIPI_CSI0_LANE2_
PMIPI_CSI0_LANE2_M
CAM0_I2C_SCLCAM0_I2C_SDA...

3. TROUBLE SHOOTING
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BOT
TP4
TP7
TP2
TP1TP5TP3
CN9000
TP6   

3. TROUBLE SHOOTING
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3.9.2 1.26M Front Camera Trouble Shooting
1.26M Front camera control signals are generated by MSM8974
Disconnect and reconnect camera 
connector (CN9001)
Yes
Yes
No
No
No
No
START
TP1 : 1.8V
TP2 : 1.8V
TP3 : 2.7V
Camera is OK?
Camera is OK?
TP4 : 19.2MHz
END
Change the Main Board
Change the Camera module
END
Yes
Yes   

3. TROUBLE SHOOTING
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D9002EAH61892901RCLAMP7522T
4
3
5
2
1
C9025
2.2u2.2u C90262.2u
C9027
ENBY0039601
GB042-20S-H10-E3000 CN9001
11
10 12
9 13
8 14
7 15
6 16
5 17
4 18
3 19
2 20
1
+1V8_VREG_LVS2
CAM1_I2C_SCL
CAM1_I2C_SDA
+2V7_VREG_L18
VT_CAM_RESET_N
+1V8_VT_DVDD
VT_IOVDD
TP1
TP2
TP3
ZD9002
ENBY0039601
GB042-20S-H10-E3000 CN9001
11
10 12
9 13
8 14
7 15
6 16
5 17
4 18
3 19
2 20
1...

3. TROUBLE SHOOTING
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BOT
TP4
TP2TP1
TP3
CN9001   

3. TROUBLE SHOOTING
- 156 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
3.10 Main LCD trouble
Main LCD control signals are generated by MSM897
Follow the power ONTrouble shooting
Change the  Lower FPCB
Disconnect and re-connectLCD Connector in Lower FPCB(CN16001)
No
No
No
START
LCD display OK?
Check LCD Power in Main BoardTP1(DSV_EN)TP2(+5V5_DDVDH)TP3(-5V5_DDVDL)TP4(WLED_A)
Check LCD Power in Lower...

3. TROUBLE SHOOTING
- 157 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
C9019
10u
L90024.7u
U9004
DW8755
D3 B3
D2
B1
C2 A3
C3
D1
B2
A1
C1
A2
PVIN1
-VOUT_N
AVIN
PGND
EN
AGND1
SW_P
FDSW_N
AGND2VOUT_P
REF
R9001
10K
C9020
1uC9023
10u
4.7u
L9001
C9018
10u
-5V5_DDVDL
+5V5_DDVDH+VPWR
GND
DSV_EN
Change:revC->rev1.0(0624)revC->rev1.0(0701)
Change:rev10->rev11(0729)
DSV_EN
: TP1 (R9001)
+5V5_DDVDH
: TP2 (C9019)
-5V5_DDVDL
: TP3 (C9023)...

3. TROUBLE SHOOTING
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BOT
TP3 : C9023
TP1 : R9001
TP2 : C9019
10u
L9000
R9000
100K
D9001
SDB0530
C9005
10uC9007
100p
U9000
EAN62626401LM3630
C2 B3 D2
B2 A1
A2 D1
C3
C1
A3
D3
B1 HWENILED1
SW
PWM
INOVPSCLSDA
INTNILED2
GNDSEL
1u
C9006
COMMON_I2C_SCLCOMMON_I2C_SDA
+VPWR
LCD_PWM
WLED_C2
WLED_C1
LCD_BL_EN
WLED_A
Change:revB->revC(0604)
Change:revC->rev10(0701)
Change:rev10->rev11(0802)
I2C...

3. TROUBLE SHOOTING
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TOP
TP5
TP6TP7TP8
WLED_A
: TP4 (C9006 &C9007)   

3. TROUBLE SHOOTING
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3.11 Touch Trouble Shooting
Touch control signals are generated by MSM8974
Follow the power ONTrouble shooting
Change the  Lower FPCB
Disconnect and re-connectLower FPCB Connector (CN16000)LCD Connector in Lower FPCB(CN160001)
No
No
No
START
LCD display OK?
Check Power in Lower FPCB
TP1(+3V1_VREG_L22)/TP2(+1V8_VREG_LVS3)
TP4(+5V5_DDVDH)/TP3(-5V5_DDVDL)...