LG E475F Service Manual Download Page 118

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- 118 -

Only for training and service purposes

LGE Internal Use Only

6. CIRCUIT DIAGRAM

ANT1004

U1000

N13

H10

D10

H12

N12

L12

L13

F13

K13

B10

A12

G13

D12

E12

D13

E13

B12

C12

A11

B13

C13

J13

J12

H13

N11

N10

A10

RF_ON

TX_IP

TCXO

TX_IN

SBDT

TX_QP
TX_QN

LB_RF_OUT1
LB_RF_OUT2

VTUNE1
VTUNE2

HB_RF_OUT1

VTUNE_GPS

HB_RF_OUT2
HB_RF_OUT3

PRX_QP
PRX_QN

WPRXLBP

PRX_IP
PRX_IN

WPRXHBP
WPRXHBM

DRX_QP
DRX_QN

WDRXLB

DRX_IP
DRX_IN

WDRXHB1
WDRXHB2

GCELL_INP

DAC_IREF

GCELL_INN

VDDA1_1

EGSM_INP

VDDA1_2

EGSM_INN

VDDA1_3
VDDA1_4

DCS_INP

VDDA1_5

DCS_INN

VDDA1_6

GPCS_INP

VDDA2_1

GPCS_INN

VDDA2_2
VDDA2_3

GPS_IN

VDDA2_4

PDET_IN

VDDA2_5

TX_RBIAS

VDDA2_6

WPRXSE1

VDDA2_7

WPRXSE2

VDDA2_8
VDDA2_9

VDDA2_10
VDDA2_11
VDDA2_12

WPRXSE2_OUT

WPRXSE1_OUT

WB_MX_IN

VDD_MS

GND1

GND2

GND3

GND4

GND5

GND6

GND7

GND8

GND9

GND10

GND11

GND12

VDDA1_7

WPRXLBM

GND13

GND14

GND15

GND16

VDDA1_8

VDDA2_13

GND28

GND18

GND40

GND45

GND21

GND55

GND61

GND17

GND30

GND19

GND44

GND48

GND59

GND23

GND26

GND32

GND39

GND46

GND52

GND54

GND62

GND24

GND31

GND38

GND43

GND49

GND22

GND60

GND27

GND35

GND41

GND20

GND51

GND57

GND64

GND29

GND34

GND37

GND42

GND50

GND56

GND65

GND25

GND33

GND36

GND47

GND53

GND58

GND63

GND66

C1108
DNI

4.7u

C1064

0.1u

C1075

0.1u

C1036

U1003

PGND

VCC1

VCC2

RFIN

RFOUT

VMODE_1

CPL_IN

VMODE_0

GND

VEN

CPL_OUT

C1038
10u

0.1u

C1037

4.7u

C1033

U1002

PGND

VCC1

VCC2

RFIN

RFOUT

VMODE_1

CPL_IN

VMODE_0

GND

VEN

CPL_OUT

10n

C1100

L1002
2n

FL1004

5 3 2

OUT

2140MHz

FL1003

OUT

_OUT

G1 G3

L1019

8.2p

DNI

R1016

C1019

R1015

6.8p

C1129

100p

C1001

3.9n

L1034

C1116
1.2p

2.7p

L1029

C1117

DNI

L1031

2.7p

C1076
1.8p

C1113

DNI

C1051

0.1u

C1069

10n

L1025

6.8n

L1032

C1068

0.1u

C1067

0.1u

C1202

100p

C1109

100p

C1110

100p

L1022

49.9

R1022

DNI

L1003

15n

L1005

C1013

1.2n

7.5n

C1028

0.1u

C1066

0.1u

C1063

C1059

4.7u

C1060

0.1u

C1072

4.7u

0.1u

C1065

C1024

1.2n

L1006

DNI

7.5n

C1040

R1023

R1017

1.2p

L1021

1.2n

C1022

4.7n

L1004

FL1002

GSM1900_Bal_OUT2

GSM1900_Bal_OUT1

GSM1800_Bal_OUT2

GSM1800_Bal_OUT1

GND5

GND4

GSM1800/1900_IN

GND1

GND2

GND3

DNI

L1007

10p

C1041

10p

C1048

C1085

2.7n

C1112

0.5p

15n

L1008

10n

L1012

8.2n

L1035

8.2n

L1036

DNI

C1005

5.6n

L1033

VREG_RF_2.7V_RTR

VDD_RX

C1079

1.8p

VBAT

DNI

L1013

C1083

DNI

L1018

1.5n

18p

C1105

1.2n

L1017

1.5n

L1024

C1106

0.1u

DNI

C1125

2.2K

R1002

100p

C107

22p

C1073

C1071

0.1u

33p

C1023

DNI

C1056

6.8n

L1011

VBAT

U1001

16
15

44
43
42
41

40
39
38

32
33
34

29
30
31

2 GND2

GND5

GND13

TRX1

TRX2

GND12

TRX3

VRAMP

PGND3

PGND2

PGND1

GND10

TRX4

GND11

PGND6

PGND5

PGND4

PGND7 PGND8 PGND9

PGND10

PGND11

PGND12

PGND13

PGND14

PGND15

PGND16

GND1

GND14

GND3

GND4

GND6

GND7

GND8

TX_HB_I

TXEN

TX_LB_I

VBAT

GND9

MODE

C1074

100p

33p

C1054

R1004

12K

L1010

100p

C1039
100p

1.8p

C1092

C107

0.1

R101

6.8p

C1115

FL1009

OUT

G1 G2 G3

8.2n

L1009

DNI

C1099

0.1u

C1032

DNI

C1124

FL1007

ANT

RX1

GND1

GND5

GND2

RX2

GND3

GND4

C1082
330p

100p

C1094

VBAT

C1097
680p

C1047

39p

C1091
1p

C1093

100p

DNI

C1114

HJ-ICT-06Y

ANT1002

DNI

C1004

100p

C1014

C1015

C1018

33p

VREG_MSME_1.8V

C1061

4.7u

0.1u

C1034

10n

C1016

0.1u

C1058

ANT1001

HJ-ICT-06Y

C1127

DNI

10n

C1089

VDD_RX

C1017 10n

100p

L1014

VREG_SMPS_2.1V

R1019

110

C1126
DNI

150p

C1025

150p

C1020

150p

C1012

C1006
150p

R1001

R1000

10u

C1053

R1018

110

C1098

100

C1095
680p

330p

C1080

C1002

6.8p

C1003
DNI

2.2u

C1081

12n

L1016

2.2u

C1096

DNI

C1104

DNI

C1128

1.5n

L1030

R1012

R1011

C1101 1n

R1013

R1008

DNI

C1123

2.4n

L1015

DNI C1107

33p

L1102

R1020

220

R1026

R1024

R1007

1.8n

C1111

FL1005

OUT

G1 G2 G3

R1006

SW1000

ANT

COMMON

C1090

100

C1088

100

100p

C1046

C1087

L1023

C1203

100p

DNI

L1027

L1026
DNI

U1004

PGND

NC1

VDD

RF_IN

RF_OUT

NC2

VSD

R1021

15n

C1103

L1001

15n

C1118

DNI

C1086

HJ-ICT-06Y

ANT1005

100p

C1007

C1084

1.2n

1.8n

L1020

FL1006

ANT

GND1

GND6

GND2

GND5

GND3

GND4

FL1001

GSM900_Bal_OUT2

GSM900_Bal_OUT1

GSM850_Bal_OUT2

GSM850_Bal_OUT1

GND5

GND4

GSM850/900_IN

GND1

GND2

GND3

FL1008

5 3 2

OUT

L1028
100p

DNI

C1200

C1201

DNI

L1103

100p

TCXO_RTR_19.2MHZ

GSM_PA_RAMP

TX_ON

TX_I_P

TX_I_M
TX_Q_P

TX_Q_M

RX0_I_P
RX0_I_M

RX0_Q_M

RX0_Q_P

RX1_I_P
RX1_I_M

RX1_Q_M

RX1_Q_P

GPS_MODE

RTR6285_SSBI

PA_ON0

ANT_SEL2

PA_R0

ANT_SEL1

ANT_SEL0

PA_ON1

VREG_SMPS_2.1V|VSNS_RF_SMPS

GSM850_GSM900_TX

DCS_PCS_TX

RX_PCS_P

RX_PCS_M

RX_DCS_P

RX_DCS_M

RX_GSM_900_P

RX_GSM_900_M

RX_GSM_850_P

RX_GSM_850_M

VREG_RF_2.7V_RTR

GSM_PA_EN

DAC_REF

VREG_RF_2.7V

WB2100_MIX_INM

WB2100_MIX_INP

RX_WCDMA_HB

RX_WCDMA_1900_LNA_OUT

RX_WCDMA_2100_LNA_OUT

GPS_IN

3G_PAM_MODE

W850_W900_TX_OUT

PDET_IN

RX_WCDMA_900_P

RX_WCDMA_900_M

W1900_W2100_RTX

W850_W900_RTX

W1900_W2100_TX_OUT

Band II

GSM QUAD

LOW

WTRX_HB

ANT_SEL0

+2.7V

0603

Near To RTR

ANT_SEL1

ANT_SEL2

GRX_HB

11dB

7dB

GRX_LB

PCS(1850-1910 MHz)

DCS(1710-1785 MHz)

GSM(925-960 MHz)

DCS(1805-1880 MHz)

PCS(1930-1990 MHz)

GSM850(824-849MHz)

2mm

TX_EN

GSM900(880-915MHz)

GSM(869-894 MHz)

LOW

ANTENNA SWITCH MODULE LOGIC(SKY77584)

LOW

HIGH

LOW

HIGH

LOW

HIGH

GTX_HB

STAND-BY

GTX_LB

HIGH

WTRX_LB

LOW

HIGH

LOW

HIGH

LOW

HIGH

LOW

WCDMA DUAL

Band V

4dB attunation

Close to pin1

8dB

LOW

WCDMA RX 2100 LNA Circuit

Near To LNA

LNA for the GPS

W2100 RX(2110 - 2170 MHz)

6. CIRCUIT DIAGRAM

Summary of Contents for E475F

Page 1: ...Internal Use Only Service Manual LG E475F Date August 2013 Issue 0 9 ...

Page 2: ... Block 29 3 5 CheckingWCDMA Block 32 3 6 Checking GSM Block 42 3 7 GPS WIFI BT RF Component 49 3 8 GPS WIFI BT SIGNAL PATH 51 3 9 GPS WIFI BTTrouble shooting 53 3 10 Power ONTrouble Shooting 59 3 11 ChargingTrouble Shooting 62 3 12 2M FF CameraTrouble Shooting 64 3 13 Main LCD trouble 67 3 14 Proximity Sensor on offTrouble Shooting 69 3 15 Motion Sensor on offTrouble Shooting 71 3 16 DC MotorTroub...

Page 3: ...acilities accessed through or connected to it The manufacturer will not be responsible for any charges that result from such unauthorized use B Incidence of Harm If a telephone company determines that the equipment provided to customer is faulty and possibly causing harm or interruption in service to the telephone network it should disconnect telephone service until repair can be done A telephone ...

Page 4: ... and Attenuation A phone may interfere with sensitive laboratory equipment medical equipment etc Interference from unsuppressed engines or electric motors may cause problems H Electrostatic Sensitive Devices ATTENTION Boards which contain Electrostatic Sensitive Device ESD are indicated by the sign Following information is ESD handling Service personnel should ground themselves by using a wrist st...

Page 5: ...MSM7225A Qualcomm Analog Baseband PM8029 Qualcomm RF Chip RTR6285A Qualcomm LGE Internal Use Only 2 1 Product Name LG E475f WCDMA850 2100 EGSM GSM850 DCS PCS HSUPA5 6Mbps HSDPA 7 2Mbps GPRS Class 12 EDGE Class 12 2 2 Supporting Standard Item Feature Comment Supporting Standard WCDMA FDD1 5 EGSM GSM850 DCS1800 PCS1900 with seamless handover Phase 2 include AMR Frequency Range WCDMA FDD1 TX 1920 198...

Page 6: ...x 13 4mm Weight 107g With Battery RX sensitivity WCDMA FDD1 106 7 dBm WCDMA FDD5 107 dBm EGSM 107 dBm GSM850 107 dBm DCS 1800 107 dBm PCS 1900 107 dBm TX output power WCDMA GSM GPRS WCDMA 22 5dBm 3 84MHz 1 3dBm EGSM 32 5dBm GSM850 32 5 dBm DCS1800 29 5 dBm PCS 1900 29 5 dBm EDGE compatibility EDGE Class 12 Rx only Power class GSM GPRS WCDMA Class3 WCDMA Class4 EGSM Class4 GSM850 Class1 PCS Class1 ...

Page 7: ... Fixed Type System connector 5 Pin u USB Ear Phone Jack 3 5 pi type PC synchronization Yes Memory eMMC 4GB LPDDR1 4Gb Speech coding FR EFR HR AMR Vibrator Built in Vibrator Blue Tooth Bluetooth 3 0 EDR MIDI for Buzzer Function SW Decoded 72Poly Music Player MP3 WMA AAC MIDI EAAC HE AAC OGG Video Player MPEG4 H 264 Camcorder MPEG4 or H 263 Voice Recording Yes Speaker Phone mode Support Yes Travel A...

Page 8: ...05 2dBm Measure RSSI after 10 seconds if you change power 2 Charging Time 210 minutes under 3 Travel Charger Input 100 240 V 50 60 Hz Output 5 1V 700 mA 4 Battery Type Li ion Battery Pack 1540 mAh Standard Voltage 3 7 V Battery Full Charge Voltage 4 1V 4 2V Measure RSSI after 10 seconds if you change power 2 ChargingTime 210 minutes under 3 Travel Charger Input 100 240V 50 60 Hz Output 5 1V 700 mA...

Page 9: ...DMA only 3 0 mA under 500 hours over DRX 7 6 mA under 250 hours over DRX 7 300mA under 300 min over Tx 12dBm Measure standby current after 10 minutes after backlight off 6 Battery Bar Battery Bar Specification Unit Battery Bar Specification Unit BAR 20 Full OVER 98 Soc BAR 9 8 43 42 Soc BAR 20 19 98 97 BAR 8 7 38 37 BAR 19 18 93 92 BAR 7 6 33 32 BAR 18 17 88 87 BAR 6 5 28 27 BAR 17 16 83 82 BAR 5 ...

Page 10: ...ure standby current after 10 minutes after backlight off 6 Battery Bar Battery Bar Specification Unit Battery Bar Specification Unit BAR 20 Full OVER 98 Soc BAR 9 8 43 42 Soc BAR 20 19 98 97 BAR 8 7 38 37 BAR 19 18 93 92 BAR 7 6 33 32 BAR 18 17 88 87 BAR 6 5 28 27 BAR 17 16 83 82 BAR 5 4 23 22 BAR 16 15 78 77 BAR 4 3 18 17 BAR 15 14 73 72 BAR 3 2 13 12 BAR 14 13 68 67 BAR 2 1 8 7 BAR 13 12 63 62 B...

Page 11: ...con to where you want to register PC Sync Yes Speed Dial Yes Profile Yes not same with feature phone setting CLIP CLIR Yes Phone Book Name Number Email Website Postal addresses Organizations Groups Birthday Ringtone There is no limitation on the number of items It depends on available memory amount Ringtone can be specified in the detail view screen Last Dial Number Yes Last Dial Numbers Last Rece...

Page 12: ...ce Dial Number No Own Number Yes Read only add edit delete are not supported Voice Memo Yes Call Reminder No Network Selection Automatic Mute Yes Call Divert Yes Call Barring Yes Call Charge AoC Yes Call Duration Yes SMS EMS There is no limitation on the number of items It depends on available memory amount EMS does not support SMS Over GPRS No EMS Melody Picture No Send Receive Save No MMS MPEG4 ...

Page 13: ...tch No Wall Paper Yes WAP Browser No Support only web browser based on webkit WAP stack and wml are not supported Download Melody Wallpaper Yes Over web browser SIM Lock No SIM Toolkit Class 1 2 3 C MMS Yes Google MMS Client EONS Yes CPHS Yes V4 2 ENS No Camera Yes 2M FF Digital Zoom x4 JAVA No Voice Dial No IrDa No Bluetooth Yes Ver 3 0 FM radio Yes GPRS Yes Class 12 EDGE Yes Class 12 Rx only Hol...

Page 14: ...yright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only LGE Internal Use Only Conference Call Yes Max 6 DTMF Yes Memo pad No TTY No AMR Yes SyncML Yes IM No Email Yes ...

Page 15: ... out to less than 1800kHz offset 200kHz 36dBm 600kHz 51dBm 56dBm Spectrum due to modulation out to larger than 1800kHz offset to the edge of the transmit band GSM 1800 3000kHz 63dBc 46dBm 3000kHz 6000kHz 65dBc 46dBm 6000kHz 71dBc 46dBm DCS 1800 3000kHz 65dBc 51dBm 6000kHz 73dBc 51dBm Spectrum due to switching transient 400kHz 19dBm 22dBm 5 0 23dBm 600kHz 21dBm 24dBm 5 0 26dBm Reference Sensitivity...

Page 16: ...r Adjacent Channel Leakage Power Ratio ACLR 33 dB 5 MHz 43 dB 10 MHz Spurious Emissions f fc 12 5 MHz 36 dBm 1 kHz RW 9 kHz f 150 kHz 36 dBm 10 kHz RW 150 KHz f 30 MHz 36 dBm 100 kHz RW 30 MHz f 1 GHz 30 dBm 1 MHz RW 1 GHz f 12 75 GHz 60 dBm 3 84 MHz RW 869 MHz f 894 MHz 60 dBm 3 84 MHz RW 1930 MHz f 1900 MHz 60 dBm 3 84 MHz RW 2110 MHz f 2155 MHz 67 dBm 100 kHz RW 925 MHz f 935 MHz 79 dBm 100 kHz...

Page 17: ...or 92 7 dBm 3 84 MHz Ioac 52 dBm 3 84 MHz 5 MHz Blocking Characteristic BER 0 001 when Îor 103 7 dBm 3 84 MHz Iblocking 56 dBm 3 84 MHz Fuw offset 10 MHz or Iblocking 44 dBm 3 84 MHz Fuw offset 15 MHz Spurious Response BER 0 001 when Îor 103 7 dBm 3 84 MHz Iblocking 44 dBm Intermodulation BER 0 001 when Îor 103 7 dBm 3 84 MHz Iouw1 46 dBm Fuw1 offset 10 MHz Iouw2 46 dBm 3 84 MHz Fuw2 offset 20 MHz...

Page 18: ...ower step slot boundary Power step size P dB Transmitter power step tolerance dB 5 1 Start of Ack Nack 6 2 3 2 Start of CQI 1 0 6 3 Middle of CQI 0 0 6 4 End of CQI 5 2 3 Spectrum Emission Mask Sub Test 1 1 15 2 12 15 3 13 15 4 15 8 5 15 7 6 15 0 Frequency offset from carrier f Minimum requirement Measurement Bandwidth 2 5 3 5 MHz 35 15 f 2 5 dBc 30 kHz 3 5 7 5 MHz 35 1 f 3 5 dBc 1 MHz 7 5 8 5 MHz...

Page 19: ...ty 10dBm 1Mbps 2Mbps 5 5Mbps 11Mbps FER 8 Rx Adjacent Channel Rejection 35dB FER 8 interference input signal 70dBm fc 25MHz 11Mbps LGE Internal Use Only 5 HSDPA receiver specification Item Specification Receive Frequency Band1 1920MHz 2170 MHz Band5 869MHz 894MHz Maximum Input Level BLER or R 16QAM Only Sub Test 1 1 15 2 12 15 3 13 15 4 15 8 5 15 7 6 15 0 BLER 10 or R 700kbps 6 WLAN 802 11b transc...

Page 20: ...nstellation error rms EVM 5dB Spurious Emissions 36 dBm 30MHz 1GHz 30 dBm above 1GHz 12 75GHz 47 dBm 1 8GHz 1 9GHz 47 dBm 5 15GHz 5 3GHz Rx Min input Sensitivity PER 10 82dBm 6Mbps 81dBm 9Mbps 79dBm 12Mbps 77dBm 18Mbps 74dBm 24Mbps 70dBm 36Mbps 66dBm 48Mbps 65dBm 54Mbps Rx Max input Sensitivity 20dBm 6 9 12 18 24 36 48 54Mbps PER 10 Rx Adjacent Channel Rejection PER 10 ACR 16dB 6Mbps ACR 15dB 9Mbp...

Page 21: ...ation error rms EVM 5dB Spurious Emissions 36 dBm 30MHz 1GHz 30 dBm above 1GHz 12 75GHz 47 dBm 1 8GHz 1 9GHz 47 dBm 5 15GHz 5 3GHz Rx Min input Sensitivity PER 10 82dBm 6 5Mbps 79dBm 13Mbps 77dBm 19 5Mbps 74dBm 26Mbps 70dBm 39Mbps 66dBm 52Mbps 65dBm 58 5Mbps 64dBm 65Mbps Rx Max input Sensitivity 20dBm 6 9 12 18 24 36 48 54Mbps PER 10 Rx Adjacent Channel Rejection PER 10 ACR 16dB 6 5Mbps ACR 13dB 1...

Page 22: ...for training and service purposes LGE Internal Use Only LGE Internal Use Only 9 GPS receiver specification Item Specification Receive Frequency 1574 42 MHz 1576 42 MHz Minimum Sensitivity 1 satellite 142dBm 7 satellites 147dBm at coarse time aiding 9 GPS receiver specification ...

Page 23: ...DMA I RX SAW Filter U1002 WCDMA I PAM FL1001 EGSM 850 Rx saw filter U1003 WCDMA V PAM FL1002 DCS PCS Rx saw filter FL1004 WCDMA I TX SAW Filter X2000 VCTCXO 19 2MHz FL1006 WCDMA I Duplexer SW1000 RF Antenna Connector FL1008 WCDMA V TX SAW Filter RF component WCDMA GSM X2000 VCTCXO U1000 RF Transceiver FL1003 W2100 Rx SAW FL1004 W2100 Tx SAW U1002 W2100 PAM FL1006 W2100 DPX FL1002 DCS PCS Rx SAW FL...

Page 24: ...Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 2 SIGNAL PATH WCDMA I and V BandTX Signal PATH D2 WCDMA 2100TX PATH E2 WCDMA 850TX PATH F1 COMMONTX RX PATH ...

Page 25: ...ING 25 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only WCDMA I and V Band RX Signal PATH D1 WCDMA 2100 RX PATH E1 WCDMA 850 RX PATH F1 COMMONTX RX PATH ...

Page 26: ...LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only GSM850 GSM900 DCS PCS s RX TX Signal PATH A GSM850 GSM900 DCS1800 PCS1900 RX PATH B GSM850 GSM900 DCS1800 PCS1900TX PATH C1 COMMONTX RX PATH ...

Page 27: ...k The output frequency 19 2MHz of TCXO X2000 is used as the reference one of RTR6285 and PM8029 internal VCO Schematic of the Crystal Part 19 2MHz TP1 TP3 TP2 19 2MHZ X2000 X1G003581002700 VC VCC TP1 TP2 GND OUT 100 R2003 C2005 1n 10n C2009 C2017 1n 0 1u C2006 VREG_TCXO_2 85V TCXO_RTR_19 2MHZ TCXO_PM_19 2MHZ TRK_LO_ADJ TCXO Circuit Clesed to TCXO TP2 TP1 TP3 ...

Page 28: ...nc All right reserved Only for training and service purposes LGE Internal Use Only CheckTP1 VCC ofTCXO VCC 2 8V Check PM8029 No Yes CheckTP2 2 4V Voltage 0 4V Check MSM7225A No Yes CheckTP3 19 2 MHz Signal Check soldering and components No Yes TCXO is OK ...

Page 29: ...HOOTING 29 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 4 Checking GSM TX Module GSM PAM ASM Block ANT_SEL2 ANT_SEL1 TX_EN ANT_SEL0 VBATT TP1 ...

Page 30: ...3 34 24 23 22 29 30 31 18 21 25 20 26 19 27 5 2 GND2 GND5 GND13 TRX1 ANT TRX2 GND12 TRX3 VRAMP PGND3 PGND2 PGND1 GND10 TRX4 GND11 PGND6 PGND5 PGND4 PGND7 PGND8 PGND9 PGND10 PGND11 PGND12 PGND13 PGND14 PGND15 PGND16 GND1 GND14 GND3 GND4 GND6 GND7 GND8 TX_HB_IN TXEN TX_LB_IN BS2 BS1 VBATT VCC GND9 MODE C1039 100p 1 2 DNI C1124 130 R1012 2 1 R1011 47 2 1 130 R1013 R1008 91 2 1 R1007 91 75 R1006 1n C1...

Page 31: ...er Source Check ANT_SEL 0 1 2 3 High Level 1 2V Voltage 3V Check theTP1 VBATT No Yes Check the Logic In each mode Antenna Switch Module logic SKY77584 ANT_SEL 0 ANT_SEL 1 ANT_SEL 2 Tx_EN STAND BY LOW LOW LOW LOW GTX_LB LOW LOW HIGH HIGH GTX_HB LOW HIGH HIGH HIGH GRX_LB HIGH LOW LOW LOW GRX_HB HIGH HIGH LOW LOW WTRX_HB HIGH LOW HIGH LOW WTRX_LB LOW HIGH LOW LOW ...

Page 32: ... All right reserved Only for training and service purposes LGE Internal Use Only 3 5 Checking WCDMA Block START 1 CheckTCXO 19 2MHz 6 Ro download SW Cal 2 CheckTx Module Block Refer to 1 4 3 Check RFTx Level 5 Check RF Level 4 Check PAM Block Refer to 1 5 4 ...

Page 33: ...G Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 5 1 CheckingTCXO Block Refer to 3 3 3 5 2 CheckingTx Module Block Refer to 3 4 3 5 3 Checking RFTX Level Test Point TX Level TP1 TP3 TP4 TP2 ...

Page 34: ...3 42 41 40 39 38 37 36 35 32 33 34 24 23 22 29 30 31 18 21 25 20 26 19 27 5 2 GND2 GND5 GND13 TRX1 ANT TRX2 GND12 TRX3 VRAMP PGND3 PGND2 PGND1 GND10 TRX4 GND11 PGND6 PGND5 PGND4 PGND7 PGND8 PGND9 PGND10 PGND11 PGND12 PGND13 PGND14 PGND15 PGND16 GND1 GND14 GND3 GND4 GND6 GND7 GND8 TX_HB_IN TXEN TX_LB_IN BS2 BS1 VBATT VCC GND9 MODE DNI C1004 C1002 6 8p C1003 DNI SW1000 4 3 2 1 ANT COMMON G3 G4 L1001...

Page 35: ...3 3 9n L1034 C1116 1 2p 2 7p L1029 C1117 DNI L1031 2 7p C1076 1 8p C1109 100p 100p C1110 100p L1022 49 9 R1022 51 R1017 1 2p L1021 C1085 2 7n C1112 0 5p 5 6n L1033 VBAT FL1007 7 5 8 4 9 2 3 1 6 ANT RX1 TX GND1 GND5 GND2 RX2 GND3 GND4 C1082 330p 100p C1094 VBAT C1097 680p 1 2 C1091 1p C1093 100p 10n C1089 R1019 110 R1018 110 C1095 680p 330p C1080 2 2u C1081 12n L1016 2 2u C1096 DNI C1104 C1101 1n 2...

Page 36: ...E Internal Use Only 3 5 4 Checking PAM Block PAM Control Signal PA_ON0 C1094 PA_ON1 C1110 PAM Enable PA_R0 PAM Gain Control PA_ON must be HIGH over 2 6V PAM IN OUT Signal When PAM is under the operation of high power mode PA_R0 C1093 Low PAM OUT power must be over 21 dBm PAM IN power must be under 10 dBm TP1 TP2 TP3 ...

Page 37: ... 1 8p C1109 100p 100p C1110 100p L1022 49 9 R1022 51 R1017 1 2p L1021 C1085 2 7n C1112 0 5p 5 6n L1033 VBAT FL1007 7 5 8 4 9 2 3 1 6 ANT RX1 TX GND1 GND5 GND2 RX2 GND3 GND4 C1082 330p 100p C1094 VBAT C1097 680p 1 2 C1091 1p C1093 100p 10n C1089 R1019 110 R1018 110 C1095 680p 330p C1080 2 2u C1081 12n L1016 2 2u C1096 DNI C1104 C1101 1n 2 4n L1015 DNI C1107 33p L1102 22 R1020 220 R1026 220 R1024 1 ...

Page 38: ...TROUBLE SHOOTING 38 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 5 5 Checking RF Rx Level Test Point RF Rx Level Bias TP5 TP3 TP2 TP1 ...

Page 39: ... 23 22 29 30 31 18 21 25 20 26 19 27 5 2 GND2 GND5 GND13 TRX1 ANT TRX2 GND12 TRX3 VRAMP PGND3 PGND2 PGND1 GND10 TRX4 GND11 PGND6 PGND5 PGND4 PGND7 PGND8 PGND9 PGND10 PGND11 PGND12 PGND13 PGND14 PGND15 PGND16 GND1 GND14 GND3 GND4 GND6 GND7 GND8 TX_HB_IN TXEN TX_LB_IN BS2 BS1 VBATT VCC GND9 MODE HJ ICT 06Y ANT1002 1 DNI C1004 C1127 1p C1002 6 8p C1003 DNI SW1000 4 3 2 1 ANT COMMON G3 G4 L1001 15n 2 ...

Page 40: ...0 R1018 110 C1095 680p 330p C1080 2 2u C1081 12n L1016 2 2u C1096 DNI C1104 C1101 1n 2 4n L1015 DNI C1107 33p L1102 22 R1020 220 R1026 220 R1024 1 8n C1111 C1090 100 C1088 100 22 C1087 22 L1023 15n C1103 1 8n L1020 FL1006 7 5 8 4 9 2 3 1 6 ANT RX TX GND1 GND6 GND2 GND5 GND3 GND4 FL1008 5 3 2 4 1 IN OUT G1 G2 G3 DNI C1200 PA_ON0 PA_R0 PA_R0 PA_ON1 RX_WCDMA_HB 3G_PAM_MODE 3G_PAM_MODE W850_W900_TX_OU...

Page 41: ...et the phone Rx is On Check bias block soldering No Yes Change the board CheckTP1 Signal exist Check RF Switch M S No Yes CheckTP2 Signal exist CheckTX Module Refer 1 4 No Yes CheckTP3 Signal exist Check Duplexer No Yes CheckTP4 Signal exist DNI SKIP No Yes CheckTP5 Signal exist Check RTR6285 and Rx SAW filter No Yes Check BIAS over 2 1V ...

Page 42: ...42 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 6 Checking GSM Block START 4 Ro download SW Cal 1 CheckTCXO Block 2 CheckTx Module 3 Check RFTRX Level ...

Page 44: ...right 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 6 1 CheckingTCXO Block Refer to 3 3 3 6 2 CheckingTx module Block Refer to 3 4 3 6 3 Checking RFTX level TP1 TP2 TP3 ...

Page 45: ...D6 PGND5 PGND4 PGND7 PGND8 PGND9 PGND10 PGND11 PGND12 PGND13 PGND14 PGND15 PGND16 GND1 GND14 GND3 GND4 GND6 GND7 GND8 TX_HB_IN TXEN TX_LB_IN BS2 BS1 VBATT VCC GND9 MODE C1039 100p 1 2 8 2n L1009 2 1 DNI C1124 HJ ICT 06Y ANT1002 1 DNI C1004 ANT1001 HJ ICT 06Y 1 C1127 1p C1002 6 8p C1003 DNI DNI C1128 130 R1012 2 1 R1011 47 2 1 130 R1013 R1008 91 2 1 R1007 91 75 R1006 SW1000 4 3 2 1 ANT COMMON G3 G4...

Page 46: ...ly CheckTCXO Block Refer to 1 3 CheckTP1 If GSM over 31 dBm If DCS PCS over 28 dBm GSM DCS PCSTx is OK Check other part Yes No Change the board CheckTP2 3 If GSM TP2 under 6 dBm If DCS PCS TP3 under 6 dBm CheckTx Module ASM EDGE PAM Refer to 4 4 Yes No Check RTR PAD Check soldering and components No Problem Still exist Problem START ...

Page 48: ...L1013 U1001 16 15 14 13 12 11 10 17 9 8 7 6 4 3 28 1 44 43 42 41 40 39 38 37 36 35 32 33 34 24 23 22 29 30 31 18 21 25 20 26 19 27 5 2 GND2 GND5 GND13 TRX1 ANT TRX2 GND12 TRX3 VRAMP PGND3 PGND2 PGND1 GND10 TRX4 GND11 PGND6 PGND5 PGND4 PGND7 PGND8 PGND9 PGND10 PGND11 PGND12 PGND13 PGND14 PGND15 PGND16 GND1 GND14 GND3 GND4 GND6 GND7 GND8 TX_HB_IN TXEN TX_LB_IN BS2 BS1 VBATT VCC GND9 MODE 8 2n L1009 ...

Page 49: ...G Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 7 GPS WIFI BT RF Component GPS Component Reference Description ANT1004 Antenna Pad FL1005 GPS SAW FILTER U1004 GPS LNA ANT1004 FL1005 U1004 ...

Page 50: ...s Inc All right reserved Only for training and service purposes LGE Internal Use Only BT WiFi Component Reference Description ANT9001 ANTENNA PAD connected to Carrier type antenna U9000 BT module U9001 WiFi module FL9000 FEM ANT9001 FL9000 U9000 U9001 ...

Page 51: ...OUBLE SHOOTING 51 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 8 GPS WIFI BT SIGNAL PATH GPS Signal PATH main board bottom GPS Rx PATH ...

Page 52: ...3 TROUBLE SHOOTING 52 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only WiFi BT Signal PATH WiFi BTTx and Rx PATH BTTRx WIFI_Rx WIFI_Tx ...

Page 53: ... 9 1 A GPS Block TP2 TP1 ANT1004 10n C1100 6 8p C1129 C1113 DNI 10n L1025 6 8n L1032 12 R1023 VREG_RF_2 7V_RTR 18p C1105 C1106 0 1u 6 8p C1115 DNI C1099 DNI C1114 C1098 100p 1 5n L1030 FL1005 5 3 2 4 1 IN OUT G1 G2 G3 3p L1027 100n L1026 U1004 4 3 5 2 6 1 7 PGND NC1 VDD RF_IN RF_OUT NC2 VSD R1021 12 DNI L1028 18p L1103 GPS_MODE GPS_IN Near To LNA LNA for the GPS TP1 TP2 ...

Page 54: ...lectronics Inc All right reserved Only for training and service purposes LGE Internal Use Only Set the phone GPS is ON CheckTP1 About 2 7V Check power LRC filter soldering No Yes Change the board CheckTP2 About 2 6V Check SW and NV item No Yes ...

Page 55: ...Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 9 2WLAN BT FM Block START 1 Check the Power Component Change 2 Check the Clock 3 Check the Module Figure Schematic ofWiFi BT module TP2 TP1 TP3 ...

Page 56: ...2 3n C9013 DNI 2400MHz 2500MHz FL9000 13 11 7 12 2 4 10 9 8 6 5 1 3 WLAN_RX WLAN_TX BT_TRX GND1 GND2 GND3 GND4 TR_SW0 TR_SW1 TR_SW2 ANT CPL PGND L9002 2n C9007 DNI DNI C9006 C9014 DNI C9011 DNI C9010 DNI C9009 DNI BT_WLAN_RF BT_WLAN_RF BT_RF_QCT WLAN_PWR_DET_IN WLAN_RF_RX WLAN_RF_TX WLAN_SW_ 0 WLAN_SW_ 1 WLAN_SW_ 2 BT ANT WiFi TX ANT WiFi RX ANT LOW LOW LOW HIGH HIGH LOW ANTENNA SWITCH MODULE LOGI...

Page 57: ...REG_MSME_1 8V 10n C9016 C9019 4 7u C9020 4 7u 10n C9021 1u C9024 C9002 22p C9045 DNI SLEEP_CLK FM_L FM_R BT_PCM_CLK BT_PCM_CLK BT_PCM_SYNC BT_PCM_SYNC BT_UART_CTS BT_UART_RTS BT_PCM_IN BT_PCM_IN BT_UART_RX BT_UART_TX FM_RDS_INT BT_FM_CLK_WCN BT_FM_CLK_REQ_WCN FM_ANT BT_PCM_OUT BT_PCM_OUT BT_RST_N I2C_COMMON_SDA_WCN I2C_COMMON_SCL_WCN BT_ACTIVE BT_PRIORITY WLAN_ACTIVE BT_RF_QCT FM_LO_PMIC FM_RO_PMI...

Page 58: ...l Use Only START Check the power block No Yes Board Change Module Check Yes No TP1 2 3 is OK SDIO ok UART ok Test point Description Test point Net name Description TP1 3V_WLAN_WCN Power for BT WiFi BB core and WiFi power Amp V Batt TP2 VREG_MSME_1 8V Power for BT power Amp 1 8V TP3 VREG_MSME_1 8V Power for host interface 1 8V ...

Page 59: ...5V C4054 VREG_MSMA1_2 6V C4049 VREG_MSMA2_1 2V C4045 VREG_TCXO_2 85V C4050 power ON Phone booting and PS_HOLD R4026 go to High START Change or charging the Battery No Yes Redownload SW image Check correctly working power key No Yes Change the Main board No Yes Change the Main board No Yes Battery voltage higher than 3 70V OCV TP1 R8010 high to low when key press Check below power output VREG_MSMC1...

Page 61: ...yright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only TP1 TP2 VREG_MSMA2_1 2V VREG_P3_2 85V VREG_TCXO_2 85V VREG_MSMC1_1 1V VREG_MSMC2_1 1V VREG_MSME_1 8V VREG_MSMA1_2 6V ...

Page 62: ... VBUS_CHG_IN C4003 22p C4001 FL4000 1 IN OUT GND1 GND2 DNI ZD4004 ZD4001 CN4000 11 10 9 5 4 3 2 1 8 7 6 USB_ID MINIABB_DP MINIABB_DM 2mm VBUS 2mm u USB Connector TA 5 1V 600mA 1u C4005 4 7K R4002 VREG_PROX_3 0V VREG_MSME_1 8V 2 2u C4077 U1 RT8966AGQW 33 28 27 26 13 25 11 10 24 23 31 22 29 21 20 14 12 7 2 9 5 32 19 18 17 8 30 6 16 4 3 15 1 OUT1 AUD1 VIN OUT3 AUD2 GND1 SCL LED2 MIC CAP RES DSS OUT4 ...

Page 63: ...pin and battery connect terminals of I O connector Connection OK No Yes Is the u USB Cable voltage 4 8V for 5 0V No Yes Is it changing properly After turning on START Check changing IC U1 SMT status by X ray Exchange changing IC or change the Main board and reset Change I O connector ChangeTA or u USB cable END Yes No ChargerTroubleshoot Flow U1 ...

Page 64: ...ly 3 12 2M FF Camera Trouble Shooting 2M camera control signals are generated by MSM7225A Check the camera Conn and reconnect the camera No No END END Yes Yes START Yes Change the camera Change the Main board No No Yes MSM7227 output signal check MCLK TP1 Reset TP2 PWDN TP3 Camera is OK Check IOVDD TP4 DVDD TP5 AVDD TP6 Camera is OK ...

Page 65: ...PIO_29 GPIO_30 GPIO_31 GPIO_32 7 5p C2018 DNI C2019 R2004 1 PA_ON1 PS_HOLD CAM_MCLK WLAN_RST_N LCD_RS eMMC_DATA 7 eMMC_DATA 6 eMMC_DATA 5 TCXO_EN PM_INT_N MINIABB_INT PMIC_SSBI PROX_OUT TOUCH_I2C_SDA TOUCH_I2C_SCL MOTION_I2C_SCL PROX_I2C_SCL PROX_I2C_SDA EAR_POLE_DET HOOK_DET BT_RST_N 3G_PAM_MODE SIM_CONTROLLER_I2C_SCL SIM_CONTROLLER_I2C_SDA TP1 0 R5008 0 R5007 C5003 2 2u VA5003 C5004 4 7u CAM_IOV...

Page 66: ...48 C9034 C4056 L1103 C1115 C4061 C1105 R8010 C4050 C1129 L4 FL1005 C9029 L1030 R1023 L1026 L1025 VA8012 C4032 VA5003 C9026 L1032 C8010 C5002 R9007 R5007 C9038 U1004 VA8009 U9001 TP4002 C4046 C9005 VB7000 R8007 C9036 VA8013 R5008 C1099 C9039 C9007 R8005 R5003 C9028 R5005 C4047 C9041 FB4000 C1106 C4051 C4030 C1113 C1100 ANT1004 R8003 C4066 C4022 TP9000 C9006 R9009 C4016 C4031 C9037 C5004 CN5000 C405...

Page 67: ...LCD control signals are generated by MSM7225A Those signal s path are MSM7225A LCD Module Press Power key to tun the power On Is the circuit powered Yes Follow the Power ion trouble shooting No LCD display OK START No Yes Change the LCD Module Disconnect and reconnect LCD connector Yes END Change the Main board No Check Power VREG_MSME_1 8V TP1 VREG_LCD_2 8V TP2 ...

Page 69: ...ty Sensor is worked as below Call connected Object moved at the sensor Control the screen s on off operation automatically Measurement VREG_MSME_1 8V VREG_PROX_3 0V PROX_OUT PROX_I2C_SCL SDA Call Connect Object moved at the Proximity Sensor LCD off No No Yes Work well START END Change the Proximity Sensor U9002 No Yes Chang the main board Yes Check PROX_I2C_SDA SCL Output Prox_out TP1 2 3 ...

Page 70: ...nly for training and service purposes LGE Internal Use Only U9002 VDD 1 SDA 8 SCL 2 INT 7 LDR 6 LEDA 4 LEDK 5 GND 3 R6008 4 7K C6004 1u R6006 4 7K 4 7K R6007 VREG_MSME_1 8V VREG_MSME_1 8V VREG_PROX_3 0V PROX_OUT PROX_I2C_SCL PROX_I2C_SDA Proximity sensor TP1 TP3 TP2 TP1 TP3 TP2 ...

Page 71: ...below Accelerometer Sensor function On Tilt the phone 90 The screen is had rotated automatic Measurement VREG_MSME_1 8V MOTION_INT MOTION_I2C_SDA SCL Tilt the phone No No Yes START END No Yes Accelerometer Sensor function On Yes No Yes The Screen is rotated Check Motion_I2C_SDA SCL output Check Motion_INT output Work well Change the Motion Sensor U6000 Change the Motion Sensor U6000 Change the Mai...

Page 72: ...or training and service purposes LGE Internal Use Only U6000 BMA255 12 4 3 2 1 11 6 8 7 9 10 5 INT1 CSB GND VDD GNDIO INT2 PS SDO SDX VDDIO NC SCX C6001 0 1u VREG_MSME_1 8V C6003 0 1u R6004 4 7K R6000 4 7K MOTION_INT MOTION_I2C_SCL MOTION_I2C_SDA Accelerometer sensor TP1 TP2 TP2 TP1 ...

Page 73: ...Internal Use Only 3 16 DC Motor Trouble Shooting Vibrator is worked as below Measurement VBAT VIB_DRV_N TP1 is same voltage asVBAT No Yes Change thr Motor working well START END Change the Main board No Yes Vibrator is not working well Yes Votage is almost 3V Between TP1 andTP2 No Change the PMIC Change the Main board ...

Page 74: ...UBLE SHOOTING 74 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only D7000 VBAT C7001 1u 82n L7000 L7001 82n VB7000 2 1 VIB_DRV_N TP1 TP2 TP2 TP1 ...

Page 75: ...17 SIM detect Trouble Shooting Yes No START Check the SIM slot 1 No Check Triple SIM Settings No Yes insert SIM Card correctly No Change the Main B D Change the Main B D TP 3 is 1 8V or 3 0V and active SIM1 is checked SIM Card is inserted correctly TP 1 is 1 8V or 3V TP 2 is 1 8V or 3V Change the Main B D END Yes Yes 1 SIM1troubleshooting ...

Page 76: ...ng Yes No START Check the SIM slot 2 or 3 No No Check Triple SIM Settings No Yes insert SIM Card correctly No Change the Main B D Change the Main B D Change the Main B D TP 6 or 9 is 1 8V or 3 0V and active SIM 2 or SIM is checked SIM Card is inserted correctly TP 10 11 is 1 8V TP 4 or 7 is 1 8V or 3V TP 5 or 8 is 1 8V or 3V Change the Main B D END Yes Yes Yes ...

Page 77: ...0 1u C8004 SIM1_CLK SIM1_IO SIM1_RST TP2 TP1 TP3 U8001 TXS02324 21 4 18 3 12 20 19 1 2 7 8 6 5 17 16 15 11 10 9 14 13 SCK SDA SIMRST SIMCLK SIMI O IRQ RSTX DNU VISM1 SIM1RST SIM1CLK SIM1I O VSIM2 SIM2RST SIM2CLK SIM2I O VDDI O VBAT GND1 GND2 PGND R8022 1 C8025 1u C8024 1u VREG_USIM2_2 85V_CONN VREG_USIM3_2 85V VBAT C8023 1u 1u C8026 R8029 4 7K R8028 4 7K VREG_MSME_1 8V VREG_MSME_1 8V SIM2_CLK SIM2...

Page 78: ...3 HSSC 6P 27_N 9 8 10 7 6 3 5 2 4 1 C1 C5 C2 C6 C3 C7 GND1 GND4 GND2 GND3 DNI C8022 VREG_USIM3_2 85V VA8021 C8008 0 1u VA8023 VA8024 VA8022 DNI C8020 DNI C8021 R8021 DNI SIM3_RST SIM3_CLK SIM3_IO TP8 TP7 TP9 J8002 9 8 10 7 6 3 5 2 4 1 C1 C5 C2 C6 C3 C7 GND1 GND4 GND2 GND3 C8014 DNI C8013 DNI VA8006 R8001 15K VA8001 VA8007 0 1u C8009 VA8005 VREG_USIM2_2 85V_CONN C8001 DNI SIM2_RST_CONN SIM2_CLK_CON...

Page 79: ...3 TROUBLE SHOOTING 79 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only TP5 TP6 TP1 TP2 TP3 TP4 TP9 TP7 TP8 TP10 TP11 ...

Page 80: ...8029 PMIC FB4001 FB4000 TP2 CN7000 TP1 SPK Pad Yes No START END Yes No Connect the phone to network equipment and set up call Set up 1KHz tone out No Yes Re contact or Change the SPK RCV module No Change the SPK RCV module Change the U4001 PMIC Yes Change the U2000 MSM7225A or Change the main PCB Can you hear the 1KHzTONE The sine wave appears at CN7000 TP1 The sine wave appears at FB4001 FB4000 T...

Page 81: ...SHOOTING 81 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only DNI C7020 DNI C7021 CN7000 2 1 VA7001 VA7000 SPK_RCV_P SPK_RCV_N Close to SPK TP1 TP1 ...

Page 82: ... GPIO_3 KPD_PWR_N RESIN_N OPTION1 SBDT PON_RESET_N PM_INT_N PA_THERM PM_TRK_LO TRK_LO_ADJ HSED_BIAS1 HSED_BIAS2 EXT_IN_LP EXT_IN_RM HPA_IN_LP HPA_IN_RM HPA_GNDREF SPKR_IN_M SPKR_IN_P HPA_CM_SNS HPA_OUT_L HPA_OUT_R SPKR_BYP_M SPKR_BYP_P SPKR_OUT_M SPKR_OUT_P R4018 0 TP4010 1u C4072 C4041 2 2u 2 2u C4040 C4063 0 1u TP4008 GND nPON_RST LINE_OP HPH_R HPH_L RCV_P RCV_N LINE_ON TRK_LO GSM_PA_DAC_REF PM_...

Page 83: ...U4001 PM8029 PMIC R7001 R7000 FB7003 FB7002 TP1 CN7001 3 5pi Ear jack Yes No START END Connect the phone to network equipment and set up call Set up 1KHz tone out No Yes Re Solder Change CN7001 or change the main PCB No Change the U4001 PMIC Yes Change the U2000 MSM7225A or Change the main PCB Can you hear the 1KHzTONE The sine wave appears at FB7003 FB7002 TP1 The sine wave appears at C4040 C4041...

Page 84: ...004 CN7001 6 1 4 4D 5 M5 MIC M4 DETECT M4 L M1 R M6 GND VA7006 FB7003 1800 DNI C7007 12 R7000 C7010 47p DNI C7008 C7011 10n L7002 100n VA7007 12 R7001 FB7002 1800 0 R7013 ZD7000 DNI C7009 DNI VA7008 0 R7011 R7006 0 EAR_L_PMIC EAR_R_PMIC FM_ANT EAR_SENSE_3 5PI EAR_MIC_3 5PI EAR_GND Delete 11 03 24 EAR_SENSE CIRCUIT Delete 11 03 24 EAR_MIC_BIAS CIRCUIT 3 5pi Ear Jack Connector TP1 ...

Page 85: ... M10 K11 KPD_PWR_N RESIN_N OPTION1 SBDT PON_RESET_N PM_INT_N PA_THERM PM_TRK_LO TRK_LO_ADJ HSED_BIAS1 HSED_BIAS2 EXT_IN_LP EXT_IN_RM HPA_IN_LP HPA_IN_RM HPA_GNDREF SPKR_IN_M SPKR_IN_P HPA_CM_SNS HPA_OUT_L HPA_OUT_R SPKR_BYP_M SPKR_BYP_P SPKR_OUT_M SPKR_OUT_P R4018 0 1u C4072 C4041 2 2u 2 2u C4040 GND nPON_RST LINE_OP HPH_R HPH_L RCV_P RCV_N LINE_ON TRK_LO PM_INT_N KPD_PWR_N TRK_LO_ADJ PMIC_SSBI EA...

Page 86: ...B4001 FB4000 TP2 CN7000 TP1 SPK Pad Yes No START END Yes No Connect the phone to network equipment and set up call Set up 1KHz tone out No Yes Re contact or Change the SPK RCV module No Change the SPK RCV module Change the U4001 PMIC Yes Change the U2000 MSM7225A or Change the main PCB Can you hear the 1KHzTONE The Sine wave appears at CN7000 TP1 The Sine wave appears at FB4001 FB4000 TP2 The Sine...

Page 87: ...OTING 87 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only DNI C7020 DNI C7021 CN7000 2 1 VA7001 VA7000 SPK_RCV_P SPK_RCV_N Close to SPK TP1 TP1 CN7000 ...

Page 88: ...O_2 GPIO_3 KPD_PWR_N RESIN_N OPTION1 SBDT PON_RESET_N PM_INT_N PA_THERM PM_TRK_LO TRK_LO_ADJ HSED_BIAS1 HSED_BIAS2 EXT_IN_LP EXT_IN_RM HPA_IN_LP HPA_IN_RM HPA_GNDREF SPKR_IN_M SPKR_IN_P HPA_CM_SNS HPA_OUT_L HPA_OUT_R SPKR_BYP_M SPKR_BYP_P SPKR_OUT_M SPKR_OUT_P R4018 0 TP4010 1u C4072 C4041 2 2u 2 2u C4040 C4063 0 1u TP4008 GND nPON_RST LINE_OP HPH_R HPH_L RCV_P RCV_N LINE_ON TRK_LO GSM_PA_DAC_REF ...

Page 89: ...R7007 R7008 TP2 C2015 C2014 TP3 MIC_1P MIC_1N of MSM7225A 0 AB MIC Bias MIC_BIAS C2003 TP1 MIC500 No START Change the main PCB Make a call Yes No Make some sound or voice to MIC C2003 TP1 is about 1 8V Some sound signal appears at R7007 R7008 TP2 Some sound signal appears at C2015 C2014 TP3 Yes Yes WorkWell END Change the MIC No Change the U2000 MSM7225A or Change the Main PCB ...

Page 90: ...OUT CCOMP MIC_BIAS RESIN_N RESOUT_N SLP_CLK USBPHY_SYSCLK RSVD4 TCXO C2003 1u C2002 0 1u C2001 47p R2016 10K MIC_BIAS 2 2K R2001 0 1u C2008 0 1u C2016 0 1u C2007 0 1u C2015 0 1u C2014 R2000 51K nPON_RST PMIC_TCXO SLEEP_CLK LINE_OP HPH_R HPH_L RCV_P RCV_N MIC_1P nJTAG_RESOUT LINE_ON MIC_1N nRESETOUT VREG_MSME_1 8V HS_MIC TP1 TP2 C7015 2 2u GOERTEK MIC500 EAB62950601 2 1 39p C7018 R7009 2 2K 39p C70...

Page 91: ...3 TROUBLE SHOOTING 91 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only R7007 R7008 TP2 U2000 C2003 TP1 C2014 TP3 C2015 TP3 ...

Page 92: ... MIC Bias HSED_BIAS1 of U4001 R7012 TP2 Headset MIC HS Detect IC Bias VBAT VREG_MSME_1 8V C7024 TP1 No START Make a call Yes No Make a some sound or voice to MIC Yes C7024 TP1 is about 1 8V R7012 TP2 is about 1 8V Some sound signal appears at FB7004 TP3 Some sound signal appears at C2008 TP4 Yes END No Change the U2001 MSM7225A 0 AB or Change the Main PCB Change the U4001 PM8029 or Change the Main...

Page 93: ... R7025 DNI U7000 FSA8008UMX 9 4 6 3 5 2 7 1 8 10 J_DET J_MIC VIO MIC DET VDD EN S E JPOLE GND VREG_MSME_1 8V VBAT C7026 470p C7023 1u 0 1u C7024 33p C7022 TP7003 TP7002 TP7001 TP7000 HSED_BIAS1 EAR_SENSE HS_MIC EAR_POLE_DET EAR_MIC_EN EAR_SENSE_3 5PI HOOK_DET EAR_MIC_3 5PI HOOK DETECT 3 4 POLE JACK DETECT TP2 TP1 C7024 TP1 CN7001 R7012 TP2 U7000 ...

Page 94: ... Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only DNI C7027 1800 FB7004 CN7001 6 1 4 4D 5 M5 MIC M4 DETECT M4 L M1 R M6 GND VA7006 FB7003 1800 VA7007 FB7002 1800 ZD7000 DNI VA7008 TP3 FB7004 TP3 ...

Page 95: ...H_R AUXIN AUXIP MIC1N MIC1P MIC2N MIC2P EAR1_ON EAR1_OP LINE_ON LINE_OP AUX_OUT CCOMP MIC_BIAS RESIN_N RESOUT_N SLP_CLK USBPHY_SYSCLK RSVD4 TCXO C2003 1u C2002 0 1u C2001 47p R2016 10K MIC_BIAS 2 2K R2001 0 1u C2008 0 1u C2016 0 1u C2007 0 1u C2015 0 1u C2014 R2000 51K nPON_RST PMIC_TCXO SLEEP_CLK LINE_OP HPH_R HPH_L RCV_P RCV_N MIC_1P nJTAG_RESOUT LINE_ON MIC_1N nRESETOUT VREG_MSME_1 8V HS_MIC TP...

Page 96: ...ed Only for training and service purposes LGE Internal Use Only 4 DOWNLOAD Thisdocumentisdraftversion sothecontentswillbeupdatedafterregisteringthefinalone TOOL INFORMATION TOOLVERSION DLL NAME USB DRIVER Please Check theVersion to B2B H W Name Part No SW D L Cable ...

Page 108: ...4 DOWNLOAD 108 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only LGE475F LGE475F LGE475FAT 00 V10a SSV XXX JUN 03 2013 0 tot LGE475F ...

Page 109: ... DOWNLOAD 109 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only LGE475F LGE475F LGE475FAT 00 V10a SSV XXX JUN 03 2013 0 tot LGE475F LGE475F ...

Page 113: ...N_N PS_HOLD EBI2 Vol up Charging IC LCD Backlight Charge Pump RT8966 5pin_USB Connector LINE_ON OP EAR1_OP ON HPH_L R LINE_OP LINE_ON HPH_R HPH_L Vol Down MIC MIC SPK_RCVP N Speaker 3 5 pi Earjack EAR_L R Key COL Key ROW CPU Interface 3 0 QVGA 320 240 TOUCH INT TCXO_19 2M TRK_LO_ADJ TCXO_IN TCXO TCXO_RTR_19 2MHz TCXO_PM_19 2MHz TCXO_IN Proximity Sensor APDS9190 PROX_I2C PROX_INT XTAL 32 768KHz WCN...

Page 114: ...TR6285A VREG_L3 VREG_S4 VREG_L7 GPS LNA MCP 4GB eMMC 4Gb RAM TCXO 19 2Mhz VREG_TCXO_2 85V VREG_L8 VREG_L2 MIC MIC_BIAS VREG_LCD_2 8V VREG_L10 Micro SD VREG_SDCARD_2 85V VREG_L13 2M CAM VIB_DRV_N WCN1314 WiFi WCDMA GSM PAM CAM_AVDD_2 8V CAM_DVDD_1 2V CAM_IOVDD_1 8V VIB_DRV_N MOTOR VBAT VBAT VBUS PM8029 TOUCH IC VREG_TOUCH_3 0V VREG_L1 VBAT LCD PROXIMITY VREG_PROX_3 0V VREG_PLL_1 1V VREG_L4 VREG_USB...

Page 115: ...R1_ON EAR1_OP RCV_N RCV _P LINE_OP LINE_ON SPK_RCV_P SPK_RCV_N SPKR_OUT_P SPKR_OUT_M MIC_BIAS MIC_1P MIC_1N J_MIC EAR_R EAR_L WCN 2243 FM_LO_R FM_LO_L FM_L FM_R EAR_R_PMIC EAR_L_PMIC HS_MIC FM_HRX_IN HPH_L HPH_R EAR_SENSE_3 5PI J_DET DET JPOLE EN EAR_MIC_3 5PI GPIO41 GPIO4 EAR_SENSE EAR_POLE_DET GPIO127 EAE_MIC_EN FM_ANT FM_ANT LGE435 Audio Block Diagram HPA_OUT_R HPA_OUT_L SPKR_IN_M SPKR_IN_P SPK...

Page 116: ...T PA_R0 GSM_PA_BAND ANT_SEL 3 0 ANT_SEL 3 0 GPIO 72 75 TRX_LO_CNK DAC_IREF TX_ON GPIO59 GPIO 72 75 GPIO80 GPIO79 GPIO22 GPIO58 PA_ON0 PA_RANGE0 PA_POWER_CTL Duplexer W2100 Front End Module Duplexer W850 GPS LNA TCXO WCDMA PAM 2100 RF Transceiver QCT RTR6285A WCDMA PAM 850 DCS PCS_Rx SAW PA_ON0 PA_ON1 PA_R0 PA_R0 Rx_WCDMA_850 Rx_WCDMA_2100 Rx_W2100_LNA_OUT W2100 Rx SAW B9411 W2100_Tx GPS_IN OUT VCO...

Page 117: ...IN SDIO_CLK SLEEP_CLK SDIO_CMD PDET_IN RF_TX_PA SDIO_DATA 3 0 RF_RX FM_LO_R BT_RFIO FM_LO_L FM_RDS_INT BT_UART_TXD BT_UART_RXD FM_HRX_IN BT_UART_CTS BT_UART_RTS SYS_RST_N BT_PCM_OUT BT_PCM_IN SLEEP_CLK BT_PCM_SYNC BT_PCM_CLK WLAN_RST_N WLAN_CLK WLAN_CMD WLAN_SDIO 3 0 FM_R FM_L FM_RDS_INT BT_UART_TX BT_UART_RX BT_UART_CTS BT_UART_RTS BT_RESET_N BT_PCM_IN BT_PCM_OUT BT_PCM_SYNC BT_PCM_CLK MSM7225A W...

Page 118: ...GND3 PGND2 PGND1 GND10 TRX4 GND11 PGND6 PGND5 PGND4 PGND7 PGND8 PGND9 PGND10 PGND11 PGND12 PGND13 PGND14 PGND15 PGND16 GND1 GND14 GND3 GND4 GND6 GND7 GND8 TX_HB_IN TXEN TX_LB_IN BS2 BS1 VBATT VCC GND9 MODE C1074 100p 33p C1054 R1004 12K L1010 100p C1039 100p 1 8p C1092 C1077 0 1u R1014 1K 6 8p C1115 FL1009 5 3 2 4 1 IN OUT G1 G2 G3 8 2n L1009 2 1 DNI C1099 0 1u C1032 DNI C1124 FL1007 7 5 8 4 9 2 3...

Page 119: ...PA_PWR_CTL PA_PWR_CTL_M PA_RANGE0 PA_ON0 GSM_BG_REF DAC_IREF TX_ON TX_AGC_ADJ TRK_LO_ADJ I_IM_CH0 I_IP_CH0 Q_IM_CH0 Q_IP_CH0 I_IM_CH1 I_IP_CH1 Q_IM_CH1 Q_IP_CH1 I_OUT_N I_OUT_P Q_OUT_N Q_OUT_P LINE_L_IN LINE_L_IP LINE_R_IN LINE_R_IP HPH_VREF HPH_L HPH_R AUXIN AUXIP MIC1N MIC1P MIC2N MIC2P EAR1_ON EAR1_OP LINE_ON LINE_OP AUX_OUT CCOMP MIC_BIAS RESIN_N RESOUT_N SLP_CLK USBPHY_SYSCLK RSVD4 TCXO MIPI_...

Page 120: ..._34 GND_35 GND_36 GND_37 GND_38 GND_39 GND_40 GND_41 GND_42 GND_43 GND_44 GND_45 GND_46 GND_47 GND_48 GND_49 GND_50 GND_51 VDD_USBPHY_1P8 VDD_USBPHY_3P3 VDD_A1_1 VDD_A1_2 VDD_A1_3 VDD_A1_4 VDD_A1_5 VDD_A1_6 VDD_A1_7 VDD_A1_8 VDD_A1_9 VDD_A2 VDD_A3_1 VDD_A3_2 VDD_A4 VDD_A5 VDD_A6_1 VDD_A6_2 VDD_A6_3 VDD_A6_4 VDD_A6_5 VDD_EFUSE_PROG VDD_P1_1 VDD_P1_2 VDD_P1_3 VDD_P1_4 VDD_P1_5 VDD_P1_6 VDD_P2_1 VDD_...

Page 121: ...UT_A0 TCXO_D0_EN TCXO_OUT_D0 TCXO_D1_EN TCXO_OUT_D1 SLEEP_CLK0 PS_HOLD CBLPWR_N KPD_PWR_N RESIN_N OPTION1 SBDT PON_RESET_N PM_INT_N PA_THERM PM_TRK_LO TRK_LO_ADJ HSED_BIAS1 HSED_BIAS2 EXT_IN_LP EXT_IN_RM HPA_IN_LP HPA_IN_RM HPA_GNDREF SPKR_IN_M SPKR_IN_P HPA_CM_SNS HPA_OUT_L HPA_OUT_R SPKR_BYP_M SPKR_BYP_P SPKR_OUT_M SPKR_OUT_P VSW_S1_1 VSW_S1_2 VREG_S1 VSW_S2_1 VSW_S2_2 VREG_S2 VSW_S3_1 VSW_S3_2 ...

Page 122: ..._A3 INOUT_B3 INOUT_A4 INOUT_B4 G1 G2 VREG_MSME_1 8V 15pF FL5000 10 5 6 4 7 3 8 2 9 1 INOUT_A1 INOUT_B1 INOUT_A2 INOUT_B2 INOUT_A3 INOUT_B3 INOUT_A4 INOUT_B4 G1 G2 VA5000 C5003 2 2u VA5003 C5004 4 7u CAM_IOVDD_1 8V CN5000 13 12 14 11 15 10 16 9 17 8 18 7 19 6 20 5 21 4 22 3 23 2 24 1 R5002 2 2K R5003 2 2K DNI R5100 CAM_IOVDD_1 8V 2 2u C5002 VA5004 VREG_LCD_2 8V 100K R5000 C5005 1u CAM_AVDD_2 8V CAM...

Page 123: ...MSME_1 8V C6004 1u R6006 4 7K 4 7K R6007 CN6001 1 C6003 0 1u VREG_MSME_1 8V VA6003 VA6004 R6004 4 7K VA6002 VA6000 VA6001 VREG_TOUCH_3 0V R6000 4 7K VREG_MSME_1 8V VREG_PROX_3 0V CN6000 1 2 3 4 5 6 CN6002 1 CN6003 1 CN6004 1 CN6005 1 CN6006 1 CN6018 1 CN6007 1 CN6008 1 CN6009 1 CN6010 1 CN6011 1 CN6012 1 CN6013 1 CN6014 1 CN6015 1 CN6016 1 CN6017 1 Daisy_Chain MOTION_INT PROX_OUT TOUCH_I2C_SDA TOU...

Page 124: ...7000 2 1 39p C7018 VREG_MSME_1 8V VBAT C7026 470p C7023 1u 0 1u C7024 33p C7022 TP7003 TP7002 TP7001 TP7000 DNI VA7008 R7009 2 2K VA7001 39p C7014 100 R7008 R7007 100 R501 1K 2 2K R7010 2 1 VA7000 C7013 39p MIC_BIAS VB7000 2 1 0 R7011 R7006 0 MIC_1P MIC_1N EAR_L_PMIC EAR_R_PMIC HSED_BIAS1 FM_ANT EAR_SENSE HS_MIC EAR_POLE_DET EAR_MIC_EN EAR_SENSE_3 5PI EAR_SENSE_3 5PI VIB_DRV_N SPK_RCV_P SPK_RCV_N ...

Page 125: ...K R8005 VA8016 VA8013 C8010 1u R8008 10 ZD8001 VA8017 VA8018 R8000 15K VREG_USIM2_2 85V_CONN C8001 DNI 0 1u C8004 J8003 HSSC 6P 27_N 9 8 10 7 6 3 5 2 4 1 C1 C5 C2 C6 C3 C7 GND1 GND4 GND2 GND3 DNI C8022 VREG_USIM3_2 85V VA8021 C8008 0 1u VA8023 VA8024 VA8022 DNI C8020 DNI C8021 R8024 DNI DNI R8025 R8026 DNI DNI R8027 VREG_USIM2_2 85V VREG_USIM2_2 85V_CONN C8024 1u VREG_USIM2_2 85V_CONN VREG_USIM3_2...

Page 126: ...A6 GND_A7 GND_A8 GND_A9 GND_A10 GND_A11 GND_A12 GND_A13 GND_A14 GND_A15 GND_A16 GND_A17 GND_A18 GND_A19 GND_A20 GND_A1 GND_A22 GND_A23 VDD_RFA10 VDD_RFA11 60 FB9001 100p C9031 L9007 100n DNI L9001 ANT9001 R9009 0 C9030 470p R9002 2 2K 2 2K R9001 0 1u C9027 100n L9004 DNI C9004 C9025 10p R9003 DNI 3 3n L9005 DNI C9005 R9008 10K C9023 0 1u VREG_MSME_1 8V C9012 3n R9004 1M C9035 1n 10p C9018 3V_WLAN_...

Page 127: ...7 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only LGE Internal Use Only U3001 Memory MCP Top View 7 BGA PIN MAP U3001 Memory MCP Top View NOT IN USE NC ...

Page 129: ...N MAP 129 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only LGE Internal Use Only U4001 PM8029 Bottom View U4001 PM8029 Bottom View USE NOT IN USE ...

Page 130: ... PIN MAP 130 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only LGE Internal Use Only U1000 RTR6285A Top View U1000 RTR6285A Top View NOT IN USE ...

Page 131: ... PIN MAP 131 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only LGE Internal Use Only U9000 WCN2243 BT FM Top View U9000 WCN2243 BT FM Top View ...

Page 132: ...7 BGA PIN MAP 132 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only U9001 WCN1314 WiFi Top View U9001 WCN1314 WiFi Top View NOT IN USE ...

Page 133: ...20 C7010 C7008 ZD7000 C7007 FB7003 R7001 R7007 R6007 R7009 R7011 CN6000 VA7008 R7008 C7009 VA7007 C7014 VA7006 R7006 FB7002 VA7000 R501 C7019 VA7001 R6006 C7021 R7013 C6004 L7002 C7020 FB7004 C7018 C7011 R6008 R7010 8 PCB LAYOUT LG E475F_MAIN_EAX65236401_1 0_TOP U9002 Proximity Sensor LCD off when talking close to face CN6000 Touch Connector no Touch Function ...

Page 134: ...7 FL5005 C1071 C3035 L1015 L1027 C3025 C1053 R4001 R9000 C3055 C4006 L9007 C9012 C4074 R1006 C4034 C1115 R8010 C4043 C3014 R2009 R4013 U1002 C9024 C1002 C4055 C9044 C1074 FL5002 C1201 R4022 C1018 C1037 C9029 R9007 VA5000 C7022 R5006 C9003 C2003 ZD8001 L1005 C1081 C8012 C1106 VA6002 R8000 L9004 C3037 R1021 C1093 TP7000 L1010 C9014 C4031 C3019 C9036 TP4001 FL1005 C3045 C1117 R1008 C2010 C1061 C4066 ...

Page 135: ...rsion sothecontentswillbeupdatedafterregisteringthefinalone CAL INFORMATION S WVERSION Please Check theVersion to B2B H W Name Part No PIF PIF200 AllType BJAY0024021 USB Cable USB Cable RAD32247898 Power Cable DC Power Cable RAD32247878 I O Cable RF Cable_Main Power Supply_PIF Power Supply 5 3V Power Supply_Phone Power Supply 5 0V RFTest Equipment E5515C 8960 NOTICE ...

Page 136: ...9 CALIBRATION 136 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only MS695 Tachyon36 LGMS695_20120213_Calibration E475F ...

Page 140: ... CALIBRATION 140 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only LGE475F LGE475F LGE475F LGE475F LGE475F LGE475F LGE475F LGE475F LGE475F ...

Page 142: ...142 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 0V 5 0V RFcable P No 1 2 RIF 200 and phone are connected in 5P E SATA DC_Plug 5PE SATADC_Plug No ...

Page 151: ...9 CALIBRATION 151 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only LGE475F E475F LGE475F LGE475F LGE475F LGE475F LGE475F ...

Page 154: ...erved Only for training and service purposes LGE Internal Use Only 10 HIDDEN MENU 3845 475 Hidden Menu Start Start shortcut keys 3845 475 Hidden Menu Start the desired menu Menu click Version Info Classified Information representation Hidden Menu Settings Version Info ...

Page 155: ...purposes LGE Internal Use Only Factory Reset Format SD Card SD Card Data reset Factory Reset Reset as default Factory Settings Delete Userdata Disabled Hidden menu WCDMA Only Factory Reset AAT DeviceTest Allauto Test You can test all functions automatically Auto AllTest Result You can check Test Results ...

Page 156: ...Card3 connecting both SIMs is PASS SD Card connecting is PASS Ear Phone No connecting is PASS Charging Mode connecting is PASS Battery higher than 20 is PASS Key PressTest Check below Items Up Down key Hard Key Power key Hard Key Menu key Touch Key Home key Touch Key Back key Touch Key SIM switch key Touch Key Proximity Sensor Bilnd the Proximity sensor CameraTest Snapshot Touch screen to capture ...

Page 157: ...013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only CameraTest Camcoding Camera is recoding for 5 seconds 2D LCD DisplayTest Check Black White Color SoundTest Touch the Play button ...

Page 158: ...s Inc All right reserved Only for training and service purposes LGE Internal Use Only VibratorTest Touch the Start button Touch DrawingTest Draw a guide line Motion SensorTest Check 3 positions Position side Position horizontally Position Vertically ...

Page 159: ...r training and service purposes LGE Internal Use Only GPS BT WifiTest GPS RF test CNO is some value OK Bluetooth Scanning is PASS OK WiFi Scanning is PASS OK FM RadioTest 87 5 Mhz is scanned automatically Connect ear jack Sound LoopbackTest On is test mode on Off is test mode off ...

Page 160: ...DE 160 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 11 DISASSEMBLE GUIDE 1 Disassemble Battery Cover Take apart the battery cover using nail hole below ...

Page 161: ...LE GUIDE 161 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 2 Disassemble Battery Screw Screw rear Take apart the battery and remove screw 6points ...

Page 162: ...pyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 1 Disassemble Rear Cover Hook off the top of Front cover by using a disassembling paddle Take apart the Rear cover ...

Page 163: ...right 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 3 2 Disassemble Rear Cover Take apart the Pad speaker and motor by using pincette Detach the Speaker from the rear cover ...

Page 164: ...ght 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 4 Disassemble Main PCB Take the FPCB out of main PCB Take apart the PCB after widen the gap between Front cover and main PCB ...

Page 165: ...c All right reserved Only for training and service purposes LGE Internal Use Only 5 Disassemble LCD Hold the touch window and Push the left side of front cover Back view Take apart the LCD out of Front cover Tip Easy to take apart the LCD module from top side ...

Page 166: ...ight 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 6 Disassemble Shield Can Camera Hook off the notches below 2points and pull on the other side Camera Take apart the Camera ...

Page 168: ...T 168 Copyright 2013 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 12 EXPLODEDVIEW REPLACEMENT PART LIST Thisdocumentisdraftversion sothecontentswillbeupdatedafterregisteringthefinalone ...

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