LG Nexus 5 Service Manual

							3. TROUBLE SHOOTING
- 151 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
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
MIPI_CSI0_LANE3_MMIPI_CSI0_LANE3_P
MAIN_CAM_MCLK
MAIN_CAM_RESET_N
+1V2_VREG_L3
+2V7_8M_ANA
revC->rev10(0603)
revC->rev10(0701)
TP1
TP2
TP7
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
EAM62630501FL9000
ICMEF104P101MFR10
9
8 4
7 3
6
2
5
1
ICMEF062P900MFR
EAM62570201FL90026
5
3
2
4
1 D1D4D2D3
G1
G2
C9008
1u
ZD9000
C9001 2.2u2.2u
C9000
MIPI_CSI0_LANE1_PMIPI_CSI0_LANE1_M
MIPI_CSI0_LANE0_PMIPI_CSI0_LANE0_M
MIPI_CSI0_CLK_PMIPI_CSI0_CLK_M
+2V8_OIS_ANA
+2V8_OIS_DIG
OIS_RESET+1V8_8M_VCM
TP6
TP5
TP3   
						

							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
EAM62630501
FL9003
ICMEF104P101MFR
10
9
8 4
7 3
6
2
5
1
VT_CAM_MCLK
MIPI_CSI2_CLK_PMIPI_CSI2_CLK_M
MIPI_CSI2_LANE0_M
MIPI_CSI2_LANE0_P
TP4   
						

							3. TROUBLE SHOOTING
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BOT
TP4
TP2TP1
TP3
CN9001   
						

							3. TROUBLE SHOOTING
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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 FPCBTP5(+3V1_VREG_L22)TP6(+1V8_VREG_LVS3)TP7(+5V5_DDVDH)TP8(-5V5_DDVDL) 
Change the Main Board
The LCD works
Change the LCD Module
END
Press PWR key turn the power on
Yes
Yes
Yes
Yes
Is the circuit powered?
No   
						

							3. TROUBLE SHOOTING
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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)
ZD16004ZD16003
ZD16006ZD16005C16001
33nVA16001
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
31
10
32
9
33
8
34
7
35
6
36
5
37
4
38
3
39
2
40
1
G1 G2G3 G4
-5V5_DDVDL
+5V5_DDVDH
LCD_PWM
WLED_AWLED_C1WLED_C2
TOUCH_RESET
LCD_MAKER_ID
TOUCH_INT_N
LCD_VSYNC
LCD_RESET_N
MIPI_DSI0_LANE3_M
MIPI_DSI0_CLK_MMIPI_DSI0_CLK_P
MIPI_DSI0_LANE0_P
MIPI_DSI0_LANE1_MMIPI_DSI0_LANE1_P
TOUCH_I2C_SDATOUCH_I2C_SCL
MIPI_DSI0_LANE3_P
MIPI_DSI0_LANE2_MMIPI_DSI0_LANE2_P
MIPI_DSI0_LANE0_M
05/20 RevE => RevG
RevH => Rev10 (0702)
4/2 Changed
4/4 Changed 4/2 Changed
+5V5_DDVDH
: TP7 (ZD16001)
-5V5_DDVDL 
: TP8 (ZD16000)
+3V1_VREG_L22
: TP5 (ZD16002)
+1V8_VREG_LVS3
: TP6 (C16002 or ZD16007)   
						

							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 address : 0x38
30V / 0.5A
WLED_A
: TP4 (C9006 &C9007)   
						

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

							3. TROUBLE SHOOTING
- 160 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
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) 
TP6(TOUCH_I2C_SDA)/TP5( TOUCH_I2C_SCL)
Check signal in Main Board
TP6 (TOUCH_I2C_SDA)
TP5 (TOUCH_I2C_SCL)
Change the LCD & Touch Module
The Touch works
Change the Main Board
END
Press PWR key turn the power on
Yes
Yes
Yes
Yes
Is the circuit powered?
No