LG Nexus 5 Service Manual

3. TROUBLE SHOOTING
- 91 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
C10745.6p
DNIL1047
L1052
DNI
33p
C1070
ACMD-6107 EAM62571601
FL1015
9
5 8
4 7
2 3
6
1
RXANT
TX
GND1
GND4GND2
OPT
GND3GND6
L1050 6.8n
DNI
L105 1
2.2p
C1069
10p
C1073TRX_B7
RX_B7
B7
TP2
TP3
10p
C1089FL1017
XMSS1R6G0PA-001TMP
EAM627300015
2
6
4
3
1VDD
GNDPORT2ANT
PORT1
VCTL
100p
C1078
+2V95_VREG_L16
10p
C1090
L1063 33p
33p
L1064
U1007
ACPF-7041
DNI_EAM62810001
2 1...

3. TROUBLE SHOOTING
- 92 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
Check TP1
Check TP1 
Signal Exist?Check the RX Level
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Check the U2004
(WTR1605L-1)
Check TP2 
Signal Exist?Check the FL1018
Check TP3 
Signal Exist?
Check TP4 
Signal Exist?
Check TP5 
Signal Exist?
Check the FL1015
(B7 Duplexer)
Check the FL1017
(B7 Separator)
Check the FL1016
(B7 Balun)  

3. TROUBLE SHOOTING
- 93 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
3.5.4.7 LTE B20
BOT
TP1
TP3
TP2  

3. TROUBLE SHOOTING
- 94 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
EAT61914101
U1000
RF1492A
21
20
7
8
6
9
5
10
4 3
11
2
12
1
19
18
17
16
15
14
13
TRX1
NC2
NC3
NC4GND2TXHBTXLB
ANT
TRX2
NC1
TRX3
TRX6
TRX5
SCLK
TRX4
SDATA
GND1
VIOVDD
GND3GND4
10p
C1023
R1015 0
+1V8_VREG_S3A_RF+2V95_VREG_L16
L1013
DNI
C1016 33p
R1016 0
100p
C1025
GND
RFFE2_DATA
RFFE2_CLK
TRX_ANT1
TRX_B17
TRX_B5_B26
TX_GSM_LB
TRX_B8
4/4_QCT_R-013551
U1000...

3. TROUBLE SHOOTING
- 95 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
Check TP1
Check TP1 
Signal Exist?Check the RX Level
Yes
Yes
Yes
No
No
No
Check the U2004
(WTR1605L-1)
Check TP2 
Signal Exist?Check the U1000
Check TP3 
Signal Exist?
Check the FL1005
(B20 Duplexer)
DNI
L1031
22n
L1025
DNI
L1030
10p
C1043
12n
C1039
0.6n
C1045
7.5n L1029
C1044
12n
B8091EAM62672701
FL1005
7
5 8
4 9
2 3 1
6
ANT
RX1
TX
GND1
GND5GND2
RX2
GND3GND4...

3. TROUBLE SHOOTING
- 96 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
3.5.4.8 LTE B3/ DCS1800
BOT
TP2
TP1
TP3
FL1018   

3. TROUBLE SHOOTING
- 97 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
L1054
DNI
LMSP32QP-F03
EAT61793601FL1018
23
11
10
8 9
6 7
5 13
4 12
2 15
14
20
17
21
16
22
19
3
18
1
TRX2
VDD
TRX10
VIO
TRX3
TRX4
SCLK
GND5
SDATA
TRX6TRX5
TRX1
GND4
GND1
TRX7
TRX9
GND2TRX8
TX1LBTX2HB
GND3ANT
GND6
C1081
100p
+1V8_VREG_S3A_RF
100p C1080
+2V95_VREG_L16
33p
C1079
RFFE2_DATA
RFFE2_CLK
TRX_ANT2
TX_GSM_HB
TRX_B3
TRX_B2_B25
TRX_B7
RX_B41
TRX_B4
TRX_B1...

3. TROUBLE SHOOTING
- 98 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
Check TP1
Check TP1 
Signal Exist?Check the RX Level
Yes
Yes
Yes
No
No
No
Check the U2004
(WTR1605L-1)
Check TP2 
Signal Exist?Check the FL1018
Check TP3 
Signal Exist?
Check the FL1013
(B3, DCS1800 RX Filter)
100p
C1060
C1068 100p
FL1013ACMD-6103-TR1
EAM62632601
7
5 8
4 9
2 3 1
6
ANTRX
TX
GND1GND6GND2GND5GND3GND4
L1041
5.6n
C1067 1n
L1046
DNI
L104215n
1p
C1059
1p...

3. TROUBLE SHOOTING
- 99 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
3.5.5 Checking DRx Front-end Separator
BOT
TP1
FL2003
Separator
FL1018
Separator
TP3TP2   

3. TROUBLE SHOOTING
- 100 -Copyright © 2013 LG Electronics. Inc. All right reserved.Only for training and service purposesLGE Internal Use Only
FL2003
EAM62690801
RF1660
21
20
15
19
10 18
16
8
11
7
9
6
5
12
4
3
13
2
14
1
17
VDD
NC
RF2
RF10
RF3
RF9RF8
RF4
RF7RF6
ANT
GND1
RF5
GND2
GND4
VIO
GND3
SDATA
RF1
SCLK
PGND
100p C2016
+1V8_VREG_S3A_RF
100p C2015
+2V95_VREG_L16
RFFE2_DATA
RFFE2_CLK
DRX_B17
DRX_B8
DRX_B5_B26
DRX_B3
DRX_B2_B25
DRX_B1_B4
TP3
TP2TP1