LG Nexus 5 Service Manual

							3. TROUBLE SHOOTING
- 181 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
U5001
U7000
BOT   
						

							3. TROUBLE SHOOTING
- 182 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
3.20 Wireless Charging Troubleshooting
When the WLC does not work, the problem comes from WLC antenna, SUB Board or WLC chip itself.
Wireless charging system is not controlled by the main core.
TP1 : Input power from secondary coil : AC 19V(at 100kHz~200kHz)
TP2 : Output power from WLC chip : within 4.8V ~ 5V
TP3 : Antenna itself has about 5.9uH self-inductance and 600mohm self-resistance (w/ RLC Meter)
TP4 : C-clip is cracked or separated from board
WLC_5V_OUT
VBUS_USB_IN_PM
U15001
EN2
AC1_2
OUT4
BOOT1
/CHG
COM1
CLMP1
FOD
PGND1
AC2_1RECT2
AC2_2
OUT3
PGND2
ILIM
AD
CLMP2
TS_CTRL
OUT1
RECT1
PGND3
EN1/TERM
/AD_EN
AC1_1
BOOT2
PGND4
COM2
OUT2
10u
C15001
10n
C15020
10n
C15010
C15022 33n
33n
C15004
C15013 68n
25V 0.1u C15017
C15002 10u
DNI
R15012C15011 68n
10K
R15014
C15000
0.1u
ANT15003
MBV62562001FEED
DNI R15017
R15019
130.01
R1501 8
200
R15016 180
R150130
C15016 47n
C15019
10uC15018
10u
C150210.47u
C150090.47u
R15011
12K
C15015
330pC15014
2.2n
ANT15002
MBV62562001FEED
C15052
1uWLC_FULL_CHG
Max 1.2A
WLC Matching Point
Rev11_BOM updated Rev11_BOM updated
Rev11_BOM updated Rev11_BOM updated
Rev11_BOM updated
Rev11_BOM updated
Rev11_BOM updated
Rev10 (0717)
Rev10 (0717) Rev10 (0717)
TP1
TP4
TP2   
						

							3. TROUBLE SHOOTING
- 183 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
 
LGE  Internal  Use  Only 
 
4.23 Wireless Charging  Troubleshooting  
When the WLC does not work, the problem comes from WLC antenna, SUB Board or WLC chip itself.   
Wireless charging system is not  controlled by the main core.  
TP1 : Input power from secondary coil : AC 19V(at 100kHz~200kHz)  
TP2 : Output power from WLC chip : within 4.8V ~ 5V  
TP3 : Antenna itself has about 5.9uH self -inductance and 600mohm self- resistance (w/ RLC Meter) 
TP4 : C -clip is cracked or s eparated from board  
 
 
TP1  
TP2 
TP3  
TP4  
TP2  
TP1  
 
LGE  Internal  Use  Only  
 
4.23 Wireless Charging  Troubleshooting  
When the WLC does not work, the problem comes from WLC antenna, SUB Board or WLC chip itself.   
Wireless charging system is not  controlled by the main core.  
TP1 : Input power from secondary coil : AC 19V(at 100kHz~200kHz)  
TP2 : Output power from WLC chip : within 4.8V ~ 5V  
TP3 : Antenna itself has about 5.9uH self -inductance and 600mohm self- resistance (w/ RLC Meter) 
TP4 : C -clip is cracked or s eparated from board  
 
 
TP1 
TP2 
TP3  
TP4  
TP2  
TP1    
						

							3. TROUBLE SHOOTING
- 184 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
Change Battery Cover Or C-Clip
START
Yes
No
No
No
Yes
Yes
Yes
Charging OK?
Charging OK?
Charging OK?
Is Signal OK?
Change the SUB Board
Charging OK?
Check the Antenna & C-Clip
END
END
END
END   
						

							3. TROUBLE SHOOTING
- 185 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
3.21 USB Trouble shooting
The sequence of D821 USB is,
USB connected to D821 -> VBUS_USB_IN(FL16003) goes to 5V -> USB_DATA is triggered -> USB work
USB Trouble shooting is shown below.
Battery voltage higher than 3.2V?
START
Pin 30~35 of CN16000 are about 5V? 
[VBUS_USB_IN_PM]
Pin 11~12 of CN16000 are open?
[USB_HS1_DP/DM SLIM1]]
Pin 11, 12 of CN16000 are USB Signal?
Charge or Charging the battery.
Insert USB Cable
Change Lower FPCB
If the pin 11~12 of CN16000 are short
Rework(Replace) the D16001
END
Check the Lower FPCB
No
No
No
No
Yes
Yes
Yes
Yes  
						

							3. TROUBLE SHOOTING
- 186 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
CN16000
33 32
34
31
35
30
36
29
37
28
38
27
39
26
40
25
41
24
42
23
43
22
44
21
45
20
46
19
47
18
48
17
49
16
50
15
51
14
52
13
53
12
54
11
55
10
56
9
57
8
58
7
59
6
60
5
61
4
62
3
63
2
64
1
G1
G2
G3
G4
+3V1_VREG_L22
+5V5_DDVDH-5V5_DDVDL
VBUS_USB_IN_PM
+1V8_VREG_LVS3
+2V95_VREG_L16
LCD_PWM
ANT_TUNER_0ANT_TUNER_1
MAIN_MIC_GND
WLED_A
MAIN_MIC_BIAS
SPK_PSPK_N
MAIN_MIC_P
WLED_C1WLED_C2
TOUCH_RESET
LCD_MAKER_ID
TOUCH_INT_N
LCD_VSYNCLCD_RESET_N
USB_HS1_DP_SLIM1USB_HS1_DM_SLIM1
USB_ID
BLUE_LED_DRV
GREEN_LED_DRVRED_LED_DRV
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_SCLMIPI_DSI0_LANE3_P
MIPI_DSI0_LANE2_MMIPI_DSI0_LANE2_P
MIPI_DSI0_LANE0_M05/20 RevE => RevG
CN16000
FL160033
2
1
IN
GNDOUT
D16000
D16001
7 8
4 3 5
2
6
1
VBUS
GND2D+
GND1D-ID
GND4GND3
22p
C16018CN16002
11 10 9 5 4 3
2 1
8 7 6
VBUS_USB_IN_PM
USB_HS1_DP_SLIM
1
USB_HS1_DP_SLIM1USB_HS1_DM_SLIM1
USB_HS1_DM_SLIM1
USB_ID USB_ID
4/2 Changed Net Nam
e
4/2 changed USB I/O connector
(from EAG63090001 to EAG63510401)
CN16002FL16003
D16001   
						

							3. TROUBLE SHOOTING
- 187 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
MIC16000
FB16000
FB16001FL16003
D16010
D16009 D16008
D16001
D16000
C16026
C16025 C16024
C16018
CN1600
2
CN16000  
						

							3. TROUBLE SHOOTING
- 188 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
3.22 HDMI Troubleshooting
Check out the setting menu on the phone and then set the proper resolution for the outer display as shown below.
Battery voltage higher than 3.2V?
START
 Pin 30~35 of CN16000 are about 
5V? [VBUS_USB_IN_PM]
TP1(C12012) is 3.3V?
TP2(C12007) is 1.8V?
TP3(C12009) is 1.8V?
TP4(C12001) is 1.0V?
HDMI Data Pin of U12001 is HDMI 
siginal
Charge or Charging the battery.
Connect the Slimport to HDMI Bridge
Check U12001and D16001
Check the Main PCB
Change main board or Lower FPCB
Check the Lower FPCB
No
No
No
No
Yes
Yes
Yes
Yes  
						

							3. TROUBLE SHOOTING
- 189 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
U12002
EAN62735301
RP114K101D-TRB
5
3 2
4
1VOUTVDDGNDCEPGND
+1V0_SLIMPORT_CVDD
+1V8_VREG_S3A
20K
R12013
C12016
1u
SLIMPORT_IOVCC_EN
(Slimport)+1V0_SLIMPORT_IOVCC
U12002
FL12000
EAM62451101
ICMEF112P350MFR5
6
3 1
4 2
P2P4P1P3
P6
P5
100K
R12008R1200
5
4.7KR12006 4.7KR120074.7K
D12000
R12004
12K
C120070.1uC12006
1u
0.1u C12012
0.1u
C12009C12008
1uC12001 0.1uC120030.1u
0.1u
C12005
TP12002
TP12001
U12001
E5
D6
D4
C4
E4
C7
D3
A1
C3
E3
B7
A7
A6 A5
A4 A3
B3
B2 C1
F2 C2 B1
B4
A2 B6 B5
D1
D2
G2 G1 F1
E2 E1 G7 G6
F6
F4
G4
F3
F5 G5 G3
E7
F7 E6
D7
D5 C6
C5
AVDD10DVDD10_1
DVSS_2
INTP
DDC_SDA
CSDACSCL
HDMI_D0PHDMI_D1P
HDMI_HPD_OUT
AVSS_2
HDMI_D1N
AVSS_1
DDC_SCL
HDMI_D2NHDMI_D2P
CEC
HDMI_P5V
HDMI_CLKNHDMI_CLKPHDMI_D0N
CHIP_PD_HV
CHG_PMP_P U
USB_DPUSB_DNID_OUT
AVDD18XTAL_OUT
R_BIAS
RSVL
XTAL_IN
CABLE_DET
AVSS_3
C_WIRE/AUXPAUXN
TX0PTX0N
VDD33_OUT
AVDD33_IN1DVSS_3
AVDD33_IN2
RESISTOR
DVDD18_1
RESETN
DVDD10_2
DVSS_1
DVDD18_2
DP_HPD_IN
HDMI_VT
VBUS_USB_IN_PM
620K
R1200 9
+1V8_VREG_S3A
1ZCB27000AA0A27MHZ
X120002
1
3 4
18p C12013
10p C12015
665K
R12010
665K
R12003
+1V8_VREG_S3A
+1V8_VREG_S3A
C12000
2.2u
2.2u
C120022.2u
C12004
18p C120141M
R12002
+1V8_VREG_S3A
1u
C12011
+1V8_VREG_S3A
+1V0_SLIMPORT_CVDD
10K
R12012+1V8_VREG_S3ATP12000
COMMON_I2C_SCLCOMMON_I2C_SDA
MSM_USB_HS1_DMMSM_USB_HS1_DP
HDMI_TMDS_TCLK_MHDMI_TMDS_TX0_MHDMI_TMDS_TX0_PHDMI_TMDS_TX1_PHDMI_TMDS_TX2_M
HDMI_TMDS_TCLK_P
HDMI_TMDS_TX1_M
HDMI_TMDS_TX2_P
PM_USB_ID_HOST
USB_ID
USB_HS1_DP_SLIM1USB_HS1_DM_SLIM1SLIMPORT_INT_N
HDMI_CECHDMI_DDC_CLKHDMI_DDC_DATA
HDMI_HOT_PLUG_DETECT
SLIMPORT_RESET_NANX_P_DWN_CTL
SLIMPORT_CBL_DET
AVDD33
AVDD33revA->revB(04.22)
Delete:revC->rev1.0(0625)
1%
0.3mm
SLIMPORT
0: other cable 1: plugged in
ID_R : 620K
Clock Line Shield
From USB Jack
0.3mm
1%
1%
1%1%
1%
1%
1%
U12001
TP1(C12012)
TP2(C12007)TP3(C12009)
TP4(C12001)  
						

							3. TROUBLE SHOOTING
- 190 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
TOP
R1200120K+1V8_VREG_S3A
1u
C12010
RP114K331D-TRB
U12000
EAN627687015
3 2
4
1VOUTVDD
GNDCE
PGND
VREG_BOOST_BYPASS
SLIMPORT_AVDD33_EN
AVDD33
0.3mm
U12000
U3000
U12002U12000
U12001
TP3(C12009)
TP2(C12007)
TP4(C12001)
TP1(C12012)