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LG -d821 Service Manual

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Internal Use Only
Service Manual
LG-D821
Date: September, 2013 / Issue 0.9

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Summary of Contents for LG lg-d821

  • Page 1 Internal Use Only Service Manual LG-D821 Date: September, 2013 / Issue 0.9...

  • Page 2: Table Of Contents

    3.19 Power ON Troubleshooting ............178 3.20 Wireless Charging Troubleshooting ..........182 3.21 USB Trouble shooting ..............185 3.22 HDMI Troubleshooting ..............188 LGE Internal Use Only - 2 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 3: Introduction

    LGE Internal Use Only - 3 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 4 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only - 4 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 5: Performance

    + GSM850/GSM900/DCS/PCS (GPRS Class10/EDGE Class10)+ FDD LTE (B1, B3, B5, B7, B8, B20) LG-D821 : WCDMA(B1,B2,B4,B5,B8)(HSPA+42Mbps(cat24)/ HSUPA 5.8Mbps(cat6) + GSM850/GSM900/DCS/PCS (GPRS Class10/EDGE Class10)+ FDD LTE (B1, B3, B5, B7, B8, B20) (DL:102Mpbs, UL:51.0Mbps, Max DL MIMO layers = 2, Release8(Cat3)) (DL:102Mpbs, UL:51.0Mbps, Max DL MIMO layers = 2, Release8(Cat3))

  • Page 6: Main Parts & Solution

    GSM850 : -108 dBm GSM850 : -108 dBm DCS 1800 : -108 dBm DCS 1800 : -108 dBm LGE Internal Use Only - 6 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 7 Main : Internal Fixed Type System connector 5 Pin u-USB Ear Phone Jack 3.5Phi, PC synchronization Memory(AP) 16Gb(SDRAM DDR2) LGE Internal Use Only - 7 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 8 MPEG4 or H.263 Voice Recording Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Data Cable T-Flash (External Memory) LGE Internal Use Only - 8 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 9: Sw Features

    / Name There is no limitation on the number of items. Group It depends on available memory amount. LGE Internal Use Only - 9 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 10 Wall Paper WAP stack and wml are not WAP Browser supported. Download Melody / Over web browser Wallpaper LGE Internal Use Only - 10 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 11 Class 12 EDGE Class 12 Hold / Retrieve Conference Call Max. 7 DTMF Memo pad SyncML Gtalk Email LGE Internal Use Only - 11 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 12: Hw Spec

    : -98dBm / -96dBm (2.439%) AM Suppression GSM : -31dBm -98dBm/-96dBm (2.439%) DCS : -29dBm Timing Advance ± 0.5T LGE Internal Use Only - 12 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 13 Δf = 8.5~12.5MHz dBc/1MHz 9kHz ~ 150kHz 150kHz ~ 30MHz Transmit Spurious Emission 30MHz ~ 1GHz 1GHz ~ 12.5GHz LGE Internal Use Only - 13 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 14 1.92GHz ~ 1.98GHz dBm/3.84MHz Spurious Emissions 1.98GHz ~ 2.11GHz dBm/3.84MHz 2.11GHz ~ 2.17GHz dBm/3.84MHz 2.17GHz ~ 12.75GHz dBm/1MHz LGE Internal Use Only - 14 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 15 -20 dBm (EVM) with HS- DPCCH 6.3A Maximum Input Level for receiver Pin = -25dBm BLER(%) HS-PDSCH Reception LGE Internal Use Only - 15 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 16 150kHz < f < 30 MHz dBm/10kHz Spurious emissions 30MHz < f < 1GHz dBm/100kHz 1GHz < f < 12.75GHz dBm/1MHz LGE Internal Use Only - 16 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 17 30MHz < f < 1GHz /100kHz (DL : QPSK, 0RB UL : QPSK, 0RB) 1GHz < f < 12.75 GHz /1MHz LGE Internal Use Only - 17 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 18 Rx Min input Sensitivity -77dBm@18Mbps, -74dBm@24Mbps, -70dBm@36Mbps -66dBm@48Mbps, -65dBm@54Mbps Rx Max input Sensitivity ≥ -30dBm(6,9,12,18,24,36,48,54Mbps) @ PER ≤ 10% LGE Internal Use Only - 18 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 19 Rx Adjacent Channel ≥ 35dB @FER ≤ 8%, Rejection interference input signal -70dBm@fc±25MHz(11Mbps) Rejection interference input signal -70dBm@fc±25MHz(11Mbps) LGE Internal Use Only - 19 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 20 ※ACR shall be measured by setting the desired signal's strength 3 dB above the rate-dependent sensitivity specified in min input sensitivity LGE Internal Use Only - 20 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 21 < -30 dBm @ 5.35 GHz to 5.47 GHz < -30 dBm @ 5.725 GHz to 26.5 GHz LGE Internal Use Only - 21 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 22 ※ACR shall be measured by setting the desired signal's strength 3 dB above the rate-dependent sensitivity specified in min input sensitivity LGE Internal Use Only - 22 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 23 Drift Rate Freq. Drift 10101010 kHz/50us Drift Rate Out of Band Spurious @ 30MHz ~ 12.75GHz Emission PRBS9 LGE Internal Use Only - 23 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 24 2 ~ 2.4 GHz Blocking Performance PRBS9 -27dBm @ 2.5 ~ 3 GHz -10dBm @ 3 ~ 12.75 GHz LGE Internal Use Only - 24 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 25 3) Peer-to-peer mode : Device to device communication(recognition distance : over 5mm) 3) Peer-to-peer mode : Device to device communication(recognition distance : over 5mm) LGE Internal Use Only - 25 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 26 6.0mA↓ 6.0mA↓ 6.0mA↓ 6.0mA↓ 8. Power Off Mode 500uA ↓ 500uA ↓ 500 uA ↓ 500 uA ↓ LGE Internal Use Only - 26 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 27 16) Charging hour 3hour 30min. under (typ. 2300mAh battery, 1.2A TA) 3hour 30min. under (typ. 2300mAh battery, 1.2A TA) LGE Internal Use Only - 27 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 28 Bar 11 -> Bar 10 53% -> 52% Low battery pop-up 14% ,4% Bar 10 -> Bar 9 48% -> 47% LGE Internal Use Only - 28 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 29: Lg-D821 Figures

    2. PERFORMANCE LG-D821 Product SPEC 2.8 D821 Figures 2.7 D821 Figures LGE Internal Use Only - 29 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 30: Trouble Shooting

    Convertor U1008 UMTS(B5/B6) LTE(B5) U1002 B20 PAM FL1006 B20 Tx SAW U1003 B7 PAM FL1019 B7 Tx Separator LGE Internal Use Only - 30 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 31 Separator Duplexer Coupler Separator FL13002 SW1003 Separator RF Switch SW1002 RF Switch SW1001 RF Switch SW1000 RF Switch LGE Internal Use Only - 31 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 32 B1, B2, B4 DRx Separator U2002 DC-DC convertor (QFE1100) U2003 B5, B6, B8 DRx Separator U2004 RF Transceiver LGE Internal Use Only - 32 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 33: Signal Path

    9.WCDMA, LTE B5 / WCDMA B6 / TX PATH <U1002, B20 PAM> 10. LTE B20 TX PATH <U1003, B7 PAM> 11. LTE B7 TX PATH LGE Internal Use Only - 33 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 34 3. TROUBLE SHOOTING LGE Internal Use Only - 34 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 35 8. WCDMA, LTE B5 / WCDMA B6 / GSM850 PRX PATH 9. LTE B20 PRX PATH 10. LTE B7 TX PATH LGE Internal Use Only - 35 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 36 4. WCDMA, LTE B5 / WCDMA B6 DRX PATH 5. LTE B20 DRX PATH 6. LTE B7 DRX PATH LGE Internal Use Only - 36 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 37: Checking Xo Block

    The output frequency (19.2MHz) of XO (X6000) is used as the reference one of WTR1605L(U2004) and PM8941(U6002) nternal VCO. U2004 X6000 LGE Internal Use Only - 37 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 38 GND1 19.2MHz C6027 C6028 0.1u R2017 100p C2027 XO_IN XO_OUT_A0 VTUNE_PRX C2078 Schematic of the Crystal Part (19.2MHz) LGE Internal Use Only - 38 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 39 Check TP1 1.9 .2 MHz Single Check the X6000 Check TP2 19.2MHz Signal Check the U6002 XO OK LGE Internal Use Only - 39 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 40: Checking Rf Front-End Separator

    GND3 FL1018 RFFE2_DATA TX1LB SDATA EAT61793601 TX_GSM_HB RFFE2_CLK TX2HB SCLK LMSP32QP-F03 GND2 TRX8 GND6 TRX_B4 TRX_B1 TRX_B3 TRX_B2_B25 LGE Internal Use Only - 40 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 41 TRX6 RF1492A TRX_B17 TRX5 TRX1 EAT61914101 TRX_B8 L1013 TRX4 TRX2 TRX_B5_B26 GND1 TRX3 R1015 RFFE2_CLK RFFE2_DATA R1016 4/4_QCT_R-013551 LGE Internal Use Only - 41 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 42 TP2 > 1.8V Check the PM8941 Check TP3 Check the FL1018 TP3 Signal? Check the U1000 RF Path Open LGE Internal Use Only - 42 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 43: Checking Rf Block

    Refer to 4.3 Check the FL1018/U1000 Refer to 3.4 Check Tx/ Rx Level Re-Download & Cal. Change the Board LGE Internal Use Only - 43 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 44: Checking Rf Tx Level

    3.5.2 Checking the FL1018/ U1000 Refer to 3.4 3.5.3 Checking RF TX Level <ACPM-7600 PAM> 3.5.3.1 WCDMA, LTE B1 LGE Internal Use Only - 44 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 45 RFOUT_B4 RFIN_B26 C1022 1.5n TX_PA_OUT_B2_B25 RFOUT_B2 RFIN_B5_B8 L1014 RFOUT_B5_B26 GND1 L1012 EAM62691501 GND14 LFL18829MTCRD627 U1001 GND2 ACPM-7600-TR1 EAN62765801 LGE Internal Use Only - 45 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 46 Check TP2 Check FL1007 (B1 Duplexer) Over 21 dBm? Check TP3 Check U1001(PAM) Over -3 dBm? Check U2004 (WTR1605L) LGE Internal Use Only - 46 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 47 3. TROUBLE SHOOTING 3.5.3.2 WCDMA B2 LGE Internal Use Only - 47 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 48 RFOUT_B4 RFIN_B26 C1022 1.5n TX_PA_OUT_B2_B25 RFOUT_B2 RFIN_B5_B8 L1014 RFOUT_B5_B26 GND1 L1012 EAM62691501 GND14 LFL18829MTCRD627 U1001 GND2 ACPM-7600-TR1 EAN62765801 LGE Internal Use Only - 48 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 49 Check TP2 Check FL1008 (B2 Duplexer) Over 21 dBm? Check TP3 Check U1001(PAM) Over -3 dBm? Check U2004 (WTR1605L) LGE Internal Use Only - 49 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 50 3. TROUBLE SHOOTING 3.5.3.3 WCDMA B4 LGE Internal Use Only - 50 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 51 RFOUT_B4 RFIN_B26 C1022 1.5n TX_PA_OUT_B2_B25 RFOUT_B2 RFIN_B5_B8 L1014 RFOUT_B5_B26 GND1 L1012 EAM62691501 GND14 LFL18829MTCRD627 U1001 GND2 ACPM-7600-TR1 EAN62765801 LGE Internal Use Only - 51 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 52 Check TP2 Check FL1012 (B4 Duplexer) Over 21 dBm? Check TP3 Check U1001(PAM) Over -3 dBm? Check U2004 (WTR1605L) LGE Internal Use Only - 52 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 53 3. TROUBLE SHOOTING 3.5.3.4 WCDMA B8 LGE Internal Use Only - 53 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 54 BC0/BC10 GND12 RFIN_GSM_HB FL1004 L1018 RFOUT_GSM_LB RFIN_GSM_LB L1020 EAM62691501 LFL18829MTCRD627 1800, 1900 C1032 5.6n C1033 C1034 TX_PA_OUT_B8 TX_OUT_MB4 LGE Internal Use Only - 54 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 55 Check TP2 Check FL1003 (B8 Duplexer) Over 21 dBm? Check TP3 Check U1001(PAM) Over -3 dBm? Check U2004 (WTR1605L) LGE Internal Use Only - 55 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 56 3. TROUBLE SHOOTING 3.5.3.5 GSM Low Band(GSM850, 900) LGE Internal Use Only - 56 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 57 850, 900 C1040 TX_GSM_HB C1041 C1042 TX_OUT_LB2 Need to change, ACPM-7600(APT+ET) L1028 C1130 GSM_LB C1049 3.3n TX_PA_IN_B5_B26_BC0_BC10_APT TX_GSM_LB LGE Internal Use Only - 57 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 58 Check U1000 Over 31 dBm? (Low Band FEM) Check TP3 Check U1001(PAM) Over -3 dBm? Check U2004 (WTR1605L) LGE Internal Use Only - 58 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 59 3. TROUBLE SHOOTING 3.5.3.6 GSM High Band(GSM1800, 1900) LGE Internal Use Only - 59 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 60 850, 900 C1040 TX_GSM_HB C1041 C1042 TX_OUT_LB2 Need to change, ACPM-7600(APT+ET) L1028 C1130 GSM_LB C1049 3.3n TX_PA_IN_B5_B26_BC0_BC10_APT TX_GSM_LB LGE Internal Use Only - 60 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 61 Check FL1018 Over 31 dBm? (High Band FEM) Check TP3 Check U1001(PAM) Over -3 dBm? Check U2004 (WTR1605L) LGE Internal Use Only - 61 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 62 VCC1 C1098 PGND C1097 L1069 C1094 C1095 C1096 L1067 C1093 C1099 2.2p 330p 100p 100p 2.2u 2.2u +1V8_VREG_S3A_RF LGE Internal Use Only - 62 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 63 3. TROUBLE SHOOTING LGE Internal Use Only - 63 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 64 Check TP2 Check FL1001 Over 21 dBm? (B5 Duplexer) Check TP3 Check U1001(PAM) Over -3 dBm? Check U2004 (WTR1605L) LGE Internal Use Only - 64 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 65 3. TROUBLE SHOOTING 3.5.3.8 LTE B3 LGE Internal Use Only - 65 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 66 RFOUT_B4 RFIN_B26 C1022 1.5n TX_PA_OUT_B2_B25 RFOUT_B2 RFIN_B5_B8 L1014 RFOUT_B5_B26 GND1 L1012 EAM62691501 GND14 LFL18829MTCRD627 U1001 GND2 ACPM-7600-TR1 EAN62765801 LGE Internal Use Only - 66 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 67 Check TP2 Check FL1013 Over 21 dBm? (B3 Duplexer) Check TP3 Check U1001(PAM) Over -3 dBm? Check U2004 (WTR1605L) LGE Internal Use Only - 67 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 68 3. TROUBLE SHOOTING 3.5.3.9 LTE B7 LGE Internal Use Only - 68 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 69 VCC1 U1003 VCC2 SCLK RFFE1_CLK VBAT ACPM-9307-TR1 C1075 C1076 5.6p C1074 TX_PA_IN_B7 RFOUT RFIN EAN62867801 SDTA RFFE1_DATA PGND LGE Internal Use Only - 69 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 70 Check TP2 Check FL1015 Over 21 dBm? (B7 Duplexer) Check TP3 Check U1003(PAM) Over -3 dBm? Check U2004 (WTR1605L) LGE Internal Use Only - 70 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 71 3. TROUBLE SHOOTING 3.5.3.10 LTE B20 LGE Internal Use Only - 71 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 72 VCC2 SCLK U1002 VBAT C1046 RF8020 RFOUT RFIN L1031 EAN62867601 R1013 0 L1032 RFFE1_DATA SDTA PGND B20 PA LGE Internal Use Only - 72 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 73 Check TP2 Check FL1005 Over 21 dBm? (B20 Duplexer) Check TP3 Check U1002(PAM) Over -3 dBm? Check U2004 (WTR1605L) LGE Internal Use Only - 73 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 74 3. TROUBLE SHOOTING 3.5.4 Checking RF Rx Level 3.5.4.1 WCDMA B1/ LTE B1 FL1018 LGE Internal Use Only - 74 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 75 FL1018 FL1018 RFFE2_DATA TX1LB SDATA EAT61793601 TX_GSM_HB RFFE2_CLK TX2HB SCLK LMSP32QP-F03 GND2 TRX8 GND6 TRX_B4 TRX_B1 TRX_B3 TRX_B2_B25 LGE Internal Use Only - 75 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 76 Check the FL1007 Signal Exist? (B1 Duplexer) Check TP4 Check the FL1020 Signal Exist? (B1/4 Separator) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 76 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 77 3. TROUBLE SHOOTING 3.5.4.2 WCDMA B2/ PCS1900 FL1018 LGE Internal Use Only - 77 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 78 FL1018 FL1018 RFFE2_DATA TX1LB SDATA EAT61793601 TX_GSM_HB RFFE2_CLK TX2HB SCLK LMSP32QP-F03 GND2 TRX8 GND6 TRX_B4 TRX_B1 TRX_B3 TRX_B2_B25 LGE Internal Use Only - 78 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 79 Check the FL1018 Signal Exist? Check TP3 Check the FL1008 Signal Exist? (B2 Duplexer) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 79 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 80 FL1018 FL1018 RFFE2_DATA TX1LB SDATA EAT61793601 TX_GSM_HB RFFE2_CLK TX2HB SCLK LMSP32QP-F03 GND2 TRX8 GND6 TRX_B4 TRX_B1 TRX_B3 TRX_B2_B25 LGE Internal Use Only - 80 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 81 TRX_B4 TX_PA_OUT_B4 FL1012 C1124 Path VDD VCTL PRX_B4(P2) GND1 L1081 GND2 GND5 PRX_B1(P3) 8.2n GND3 GND4 C1125 10p LGE Internal Use Only - 81 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 82 Check the FL1012 Signal Exist? (B4 Duplexer) Check TP4 Check the FL1020 Signal Exist? (B1/4 Separator) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 82 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 83 3. TROUBLE SHOOTING 3.5.4.4 WCDMA B5/ LTE B5/ GSM850 U1000 LGE Internal Use Only - 83 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 84 TRX6 RF1492A TRX_B17 TRX5 TRX1 EAT61914101 TRX_B8 L1013 TRX4 TRX2 TRX_B5_B26 GND1 TRX3 R1015 RFFE2_CLK RFFE2_DATA R1016 4/4_QCT_R-013551 LGE Internal Use Only - 84 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 85 Check the U1000 Signal Exist? Check TP3 Check the FL1001 Signal Exist? (B5 Duplexer) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 85 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 86 3. TROUBLE SHOOTING 3.5.4.5 WCDMA B8/ GSM900 U1000 LGE Internal Use Only - 86 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 87 TRX6 RF1492A TRX_B17 TRX5 TRX1 EAT61914101 TRX_B8 L1013 TRX4 TRX2 TRX_B5_B26 GND1 TRX3 R1015 RFFE2_CLK RFFE2_DATA R1016 4/4_QCT_R-013551 LGE Internal Use Only - 87 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 88 Check the U1000 Signal Exist? Check TP3 Check the FL1003 Signal Exist? (B8 Duplexer) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 88 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 89 3. TROUBLE SHOOTING 3.5.4.6 LTE B7 FL1018 LGE Internal Use Only - 89 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 90 FL1008 FL1018 RFFE2_DATA TX1LB SDATA EAT61793601 TX_GSM_HB RFFE2_CLK TX2HB SCLK LMSP32QP-F03 GND2 TRX8 GND6 TRX_B4 TRX_B1 TRX_B3 TRX_B2_B25 LGE Internal Use Only - 90 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 91 B41 Saw add B41 Balun add ACPF-7041 DNI_EAM62810001 C1105 U1007 RX_B41 TX/RX Path VCTL RX_B41(P1) L1070 RX_B7(P2) 3/27 Add LGE Internal Use Only - 91 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 92 Check the FL1017 Signal Exist? (B7 Separator) Check TP5 Check the FL1016 Signal Exist? (B7 Balun) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 92 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 93 3. TROUBLE SHOOTING 3.5.4.7 LTE B20 LGE Internal Use Only - 93 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 94 TRX6 RF1492A TRX_B17 TRX5 TRX1 EAT61914101 TRX_B8 L1013 TRX4 TRX2 TRX_B5_B26 GND1 TRX3 R1015 RFFE2_CLK RFFE2_DATA R1016 4/4_QCT_R-013551 LGE Internal Use Only - 94 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 95 Check the U1000 Signal Exist? Check TP3 Check the FL1005 Signal Exist? (B20 Duplexer) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 95 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 96 3. TROUBLE SHOOTING 3.5.4.8 LTE B3/ DCS1800 FL1018 LGE Internal Use Only - 96 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 97 FL1018 RFFE2_DATA TX1LB SDATA FL1018 EAT61793601 TX_GSM_HB RFFE2_CLK TX2HB SCLK LMSP32QP-F03 GND2 TRX8 GND6 TRX_B4 TRX_B1 TRX_B3 TRX_B2_B25 LGE Internal Use Only - 97 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 98 Check the FL1018 Signal Exist? Check TP3 Check the FL1013 Signal Exist? (B3, DCS1800 RX Filter) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 98 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 99 3. TROUBLE SHOOTING 3.5.5 Checking DRx Front-end Separator FL2003 Separator FL1018 Separator LGE Internal Use Only - 99 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 100 +1V8_VREG_S3A_RF +2V95_VREG_L16 DRX_B5_B26 DRX_B8 DRX_B1_B4 DRX_B2_B25 DRX_B3 PGND RFFE2_CLK GND1 SCLK RFFE2_DATA GND2 SDATA FL2003 RF1660 GND3 EAM62690801 DRX_B17 LGE Internal Use Only - 100 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 101 Check TP2 TP2 > 1.8V Check the PM8941 Check TP3 TP3 Signal? Check the FL2003 RF Path Open LGE Internal Use Only - 101 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 102 3. TROUBLE SHOOTING 3.5.6 Checking RF DRx Level 3.5.6.1 WCDMA B1, B4/ LTE B1 FL2003 Separator LGE Internal Use Only - 102 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 103 DRX_B2_IN_P RF1633 DRX_B2_IN_N EAM62470001 GND3 GND6 C2012 100p DRX_MB_IN_P DRX_B3_IN_P CTL1 Path CTL2 DRX_B3_IN_N DRX_B3(P1) DRX_B2(P2) DRX_B1_B4(P3) L LGE Internal Use Only - 103 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 104 (B1, B4 DRx SAW Filter) Check TP4 Check the U2001 Signal Exist? (DRx Separator) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 104 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 105 3. TROUBLE SHOOTING 3.5.6.2 WCDMA B2 FL2003 Separator LGE Internal Use Only - 105 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 106 DRX_B2_IN_P RF1633 DRX_B2_IN_N EAM62470001 GND3 GND6 C2012 100p DRX_MB_IN_P DRX_B3_IN_P CTL1 Path CTL2 DRX_B3_IN_N DRX_B3(P1) DRX_B2(P2) DRX_B1_B4(P3) L LGE Internal Use Only - 106 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 107 Signal Exist? (B2 DRx SAW Filter) Check TP4 Check the U2001 Signal Exist? (DRx Separator) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 107 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 108 3. TROUBLE SHOOTING 3.5.6.3 WCDMA B5/ LTE B5 FL2003 Separator LGE Internal Use Only - 108 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 109 DRX_LB1_SEL PORT2+ G1 O1 C2044 3.9n FL2007 DRX_B8 EAM62493001 XM0831SZ G2 O2 C2038 C2045 Path 100p DRX_B8(P2) DRX_B5_B26(P3) LGE Internal Use Only - 109 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 110 Signal Exist? (B5 DRx SAW Filter) Check TP4 Check the U2003 Signal Exist? (DRx Separator) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 110 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 111 3. TROUBLE SHOOTING 3.5.6.4 WCDMA B8 FL2003 Separator LGE Internal Use Only - 111 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 112 DRX_LB1_SEL PORT2+ G1 O1 C2044 3.9n FL2007 DRX_B8 EAM62493001 XM0831SZ G2 O2 C2038 C2045 Path 100p DRX_B8(P2) DRX_B5_B26(P3) LGE Internal Use Only - 112 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 113 Signal Exist? (B8 DRx SAW Filter) Check TP4 Check the U2003 Signal Exist? (DRx Separator) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 113 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 114 3. TROUBLE SHOOTING 3.5.6.5 LTE B3 FL2003 Separator C2014 EAM62471201 DRX_B3_IN_N SAFEA1G84FM0F00 C2017 1.2n DRX_B3 U_BP FL2002 L2007 C2019 DRX_B3_IN_P LGE Internal Use Only - 114 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 115 DRX_B2_IN_P RF1633 DRX_B2_IN_N EAM62470001 GND3 GND6 C2012 100p DRX_MB_IN_P DRX_B3_IN_P CTL1 Path CTL2 DRX_B3_IN_N DRX_B3(P1) DRX_B2(P2) DRX_B1_B4(P3) L LGE Internal Use Only - 115 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 116 Signal Exist? (B3 DRx SAW Filter) Check TP4 Check the U2001 Signal Exist? (DRx Separator) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 116 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 117 Path HHM1918A2 DNI_EAM62790201 C2088 C2091 L2033 U2006 DRX_B41(P3) TX/RX UNBAL BALAN1 Path VCTL FL2013 BALAN2 DRX_B7(P2) DRX_B41(P1) DRX_B7(P2) LGE Internal Use Only - 117 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 118 (B7 DRx SAW Filter) Check TP5 Check the U2007 Signal Exist? (B7 DRx Separator) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 118 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 119 3. TROUBLE SHOOTING 3.5.6.7 LTE B20 LGE Internal Use Only - 119 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 120 DRX_B17 100p C2049 DRX_LB2_IN_P FL2008 C2050 100p G1 O1 SAFEA806MCM0F00 DRX_B17 G2 O2 SFSY0042601 C2051 DRX_LB2_IN_N 4/4_B12->B17 Saw LGE Internal Use Only - 120 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 121 Check the FL2003 Signal Exist? Check TP3 Check the FL2008 Signal Exist? (B20 DRx SAW Filter) Check the U2004 (WTR1605L-1) LGE Internal Use Only - 121 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 122: Gps Trouble Shooting

    FL2009 GPS & B7/41 Diplexer SW2001 RF SWITCH ANT2003 GPS ANT (Signal) U2004 WTR1605L ANT2002 GPS ANT (GND) LGE Internal Use Only - 122 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 123 C4146 C4116 C2039 C2048 C4139 C4109 C4107 C2056 LGE Internal Use Only - 123 - FL1017 Copyright © 2013 LG Electronics. Inc. All right reserved. C2013 L2004 C2095 C2057 C2065 C2059 Only for training and service purposes C2068 C4117 C4108...
  • Page 124 The problem may be refer to PMIC block, C2073, C2074 = 2.7V Check PM8941. Check TP2 Check 19.2MHz XTAL. (X6000) 19.2MHz Clock exist? Check WTR1605L LGE Internal Use Only - 124 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 125 R8005 U8001 R8026 CN8000 D820 R8027 R1025 D821 R8025 R1024 LGE Internal Use Only - 125 - Copyright © 2013 LG Electronics. Inc. All right reserved. SW1003 D8002 R8044 Only for training and service purposes R5010 R5011 TP8001 TP8002 TP8003...
  • Page 126 3. TROUBLE SHOOTING U6002 (PM8941) X6000 U2004 LGE Internal Use Only - 126 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 127 R2019 4.75K RBIAS 4/4_QCT_R-013555(XO_OUT_A1 removed) DNC3 WTR_SSBI_PRX_DRX SSBI_PRX_DRX WTR_SSBI_TX_GPS SSBI_TX_GNSS RX_ON RX_ON0 RF_ON RF_ON0 DNC1 Schematic of WTR1605L LGE Internal Use Only - 127 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 128: Wifi/Bt Trouble Shooting

    Description Reference No. Description FL13000 Diplexer U13001 2.4G SP3T+LNA FL13001 U13002 5G SP2T+LNA U13000 WIFI/BT Chip X13000 Crystal LGE Internal Use Only - 128 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 129 3. TROUBLE SHOOTING 3.7.2 WIFI/BT Signal Path_Tx / Rx Tx Path Rx Path FL13000 FL13001 U13002 2.4G U13001 U13000 X13000 LGE Internal Use Only - 129 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 130 3. TROUBLE SHOOTING 3.7.3 WIFI/BT Signal Path_Tx Tx Path ANT Matching FL13000 FL13001 U13002 2.4G U13001 U13000 X13000 LGE Internal Use Only - 130 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 131 3. TROUBLE SHOOTING 3.7.4 WIFI/BT Signal Path_Rx Rx Path ANT Matching FL13000 FL13001 U13002 2.4G U13001 U13000 X13000 LGE Internal Use Only - 131 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 132 5G RF Line Component C13060/C13059 Replace U13001 For 2.4Ghz Check U13001 Replace U13002 For 5Ghz ChecK U13002 Main Board Change LGE Internal Use Only - 132 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 133: Audio Troubleshooting

    Check the Lower FPCB Is Speaker Sound OK? Change the WCD9320(U10000) Is Speaker Sound OK? Change The main PCB LGE Internal Use Only - 133 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 134: Speaker Module

    L16001 SPK_N ANT16001 FEED MBV62562001 L16001 5/8 RevD => RevE D16006 D16007 Rev10 (0717) => BOM Updated DNI LGE Internal Use Only - 134 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 135 3. TROUBLE SHOOTING WCD9320 LGE Internal Use Only L16000 C-Clip L16001 LGE Internal Use Only - 135 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 136: Receiver Troubleshooting

    Check Main PCB inductor(L10001,L10002) Is receiver Sound OK? Change the WCD9320(U10000) Is receiver Sound OK? Change The main PCB LGE Internal Use Only - 136 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 137 3. TROUBLE SHOOTING Check receiver contact L10001 D10004 L10002 D10005 WCD9320 LGE Internal Use Only - 137 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 138 You must check the voice recording test first. After voice recording, if you could hear the recorded sound, It is nor MIC fault And receiver path or parts is something wrong. LGE Internal Use Only - 138 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 139 Check the Lower FPCB Is voice signal ok? Change the WCD9320(U10000) Is voice signal ok? Change The main PCB LGE Internal Use Only - 139 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 140 3. TROUBLE SHOOTING Main bottom side Main MIC Mash Filter Rubber WCD9320 LGE Internal Use Only - 140 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 141 -42DB 150OHM OMNI 1.5 TO 3.6V 3.10 * 2.5 * 1.1T 1800 MIC16000 MAIN_MIC_GND RevH => Rev10 (0702) Main MIC LGE Internal Use Only - 141 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 142 Check the sub MIC. Is voice signal ok? Change the WCD9320(U10000) Is receiver Sound OK? Change The main PCB LGE Internal Use Only - 142 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 143 3. TROUBLE SHOOTING Sub MIC Rubber Front Assembly Sub mic(MIC10000) WCD9320 LGE Internal Use Only - 143 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 144 MIC10000 GOERTEK -42DB 150OHM OMNI 1.5 TO 3.6V 3.10 * 2.5 * 1.1T '13.03.18 EAH61693001 UCLAMP0541Z Sub mic(MIC10000) LGE Internal Use Only - 144 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 145 Change The main PCB Check the left signal(HPH_L) and detection line(EARJACK_DETECT) are shorted when headset inserted. See PCB Contact terminal also. LGE Internal Use Only - 145 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 146 3. TROUBLE SHOOTING Check detection is okay WCD9320 LGE Internal Use Only - 146 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes Internal Use Only...
  • Page 147 J10000 HPH_R HG05-AB3590 0.4mm HPH_REF EAG63511001 EJ_MIC FB10002 1800 revA->revB(04.22) '13.04.09 Change:rev10->rev11_update(0903) Change:rev10->rev11(0729) Delete:revB->revC(0603) EAR_Detect(Test Point) HPH_L(Test Point) LGE Internal Use Only - 147 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 148 Check the touch FPCB Mic is OK? Change the WCD9320(U10000) Is receiver Sound OK? Change The main PCB LGE Internal Use Only - 148 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 149 R10038 J10000 HPH_R HG05-AB3590 0.4mm HPH_REF EAG63511001 EJ_MIC FB10002 1800 revA->revB(04.22) '13.04.09 Change:rev10->rev11_update(0903) Change:rev10->rev11(0729) Delete:revB->revC(0603) Mic Bisa(Test Point) LGE Internal Use Only - 149 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 150: Camera

    TP5, TP6 : 2.8V TP7 : 19.2MHz Change the Camera module Camera is OK? Change the Main Board LGE Internal Use Only - 150 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 151 CN9000 CAM0_I2C_SDA CAM0_I2C_SCL +1V2_VREG_L3 +1V8_8M_VDDIO MAIN_CAM_RESET_N MAIN_CAM_MCLK MIPI_CSI0_LANE3_P MIPI_CSI0_LANE3_M MIPI_CSI0_LANE2_P MIPI_CSI0_LANE2_M +2V7_8M_ANA FL9001 ENBY0040701 GB042-30S-H10-E3000 C9009 ZD9001 4.7u LGE Internal Use Only - 151 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 152 3. TROUBLE SHOOTING CN9000 TP5 TP3 LGE Internal Use Only - 152 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 153 TP2 : 1.8V TP3 : 2.7V TP4 : 19.2MHz Change the Camera module Camera is OK? Change the Main Board LGE Internal Use Only - 153 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 154 +1V8_VREG_LVS2 +1V8_VT_DVDD +2V7_VREG_L18 CN9001 CAM1_I2C_SDA CAM1_I2C_SCL VT_CAM_RESET_N ENBY0039601 GB042-20S-H10-E3000 C9025 C9026 C9027 2.2u 2.2u 2.2u RCLAMP7522T D9002 EAH61892901 LGE Internal Use Only - 154 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 155 3. TROUBLE SHOOTING CN9001 LGE Internal Use Only - 155 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 156: Main Lcd Trouble

    TP6(+1V8_VREG_LVS3) Lower FPCB TP3(-5V5_DDVDL) TP7(+5V5_DDVDH) TP8(-5V5_DDVDL) TP4(WLED_A) Change the LCD Module Change the Main Board The LCD works LGE Internal Use Only - 156 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 157 C9019 AVIN SW_P -5V5_DDVDL U9004 : TP3 (C9023) DW8755 SW_N DSV_EN -5V5_DDVDL -VOUT_N C9023 C9020 revC->rev1.0(0701) Change:revC->rev1.0(0624) Change:rev10->rev11(0729) LGE Internal Use Only - 157 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 158 LCD_BL_EN HWEN EAN62626401 LCD_PWM I2C address : 0x38 Change:revB->revC(0604) TP3 : C9023 TP1 : R9001 TP2 : C9019 LGE Internal Use Only - 158 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 159 3. TROUBLE SHOOTING WLED_A : TP4 (C9006 &C9007) LGE Internal Use Only - 159 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 160: Touch Trouble Shooting

    Lower FPCB TP6(TOUCH_I2C_SDA)/TP5( TOUCH_I2C_SCL) TP5 (TOUCH_I2C_SCL) Change the Main Board Change the LCD & Touch Module The Touch works LGE Internal Use Only - 160 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 161 LCD_MAKER_ID 4/4 Changed LCD_RESET_N TOUCH_I2C_SCL VA16001 C16001 : TP5 (ZD16005) 4/2 Changed +1V8_VREG_LVS3 : TP2 (C16002) TP4 TP3 LGE Internal Use Only - 161 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 162: Vibrator Troubleshooting

    Vibration OK? Check TP 1, 2 Change The Vibrator TP11001 Change The main board Vibrator works LGE Internal Use Only - 162 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 163 EAU62024101 MVMF-A303FS1 CN11001 CN11002 13.04.15 CN11001, CN11002 are Motor Dummy plates. should be Placed on the Motor PAD!! LGE Internal Use Only - 163 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 164 3. TROUBLE SHOOTING Mainboard bottom TP11001 LGE Internal Use Only - 164 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 165: Gyro/Accel Sensor Troubleshooting

    Change the Gyro/Accel Sensor IC (U11001) Is the function normal operation? Change the main board Is the function normal operation? LGE Internal Use Only - 165 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 166 SENSOR1_I2C_SDA SDA/SDI AUX_CL C11003 100n COMPASS_OUT_I2C_SDA COMPASS_OUT_I2C_SCL < Main board _Bottom > U11001 (MPU6515) Gyro / Accel Sensor LGE Internal Use Only - 166 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 167: Compass Sensor Troubleshooting

    Is the function normal operation? Change the Gyro/Accel IC or main board sequentially Is the function normal operation? LGE Internal Use Only - 167 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 168 AK8963C EAN62333101 RSTN COMPASS_OUT_I2C_SDA COMPASS_DRDY COMPASS_OUT_I2C_SCL TP11005 C11016 0.1u < Main board _Bottom > U11005 (AK8963C) Compass Sensor LGE Internal Use Only - 168 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 169: Barometer Sensor Troubleshooting (Pressure Sensor )

    Is the function normal operation? Change the Gyro/Accel IC or main board sequentially Is the function normal operation? LGE Internal Use Only - 169 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 170 GND2 U11003 VDDIO EAN62695801 C11001 C11002 BMP280 0.1u 0.1u < Main board _Bottom > U11003 (BMP280) Barometer Sensor LGE Internal Use Only - 170 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 171: Proximity Sensor On/Off Troubleshooting

    Check TP11002 Output work well? Change the Proxi/light Sensor IC (U11002) Change the U11002 Is the function normal operation? LGE Internal Use Only - 171 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 172 EDTY0012501 C11007 EDTY0012501 EAN62568201 2.2u APDS-9930-200 Change:revB->rev11_update(0903) Change:revB->rev11_update(0903) < Main PCB _Top > U11002 (APDS9930) Proximity Sensor TP11002 LGE Internal Use Only - 172 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 173: Light Sensor On/Off Trouble

    Change the Proxi/light Sensor IC (U11002) Check the pad of TP2 (R11003), Proximity int Is the function normal operation? LGE Internal Use Only - 173 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 174 2.2u APDS-9930-200 TP1(C11007) Change:revB->rev11_update(0903) Change:revB->rev11_update(0903) < Main PCB _Top > U11002 (APDS9930) Proximity Sensor Check 3V(C11007) Proximity_INT(R11003) TP11002 LGE Internal Use Only - 174 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 175: Nfc

    R15038 C15034 C15036 L15002 C15030 Reference No. Description Reference No. Description C15032 U15004 BCM20793M, NFC IC X15000 Crystal LGE Internal Use Only - 175 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 176 R15038 C15034 Tx/Rx_1 C15036 L15002 Tx/Rx_2 ANT15000 C15030 C15032 Ant. Matching NFC Rx / Tx Common Signal Path LGE Internal Use Only - 176 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 177 C15032/15034, R15031/R15034 Check RF Line Check The Component Tx / Rx Line Tx / Rx Line F_SUB Change LGE Internal Use Only - 177 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 178: Power On Troubleshooting

    8. Once PON_RESET_N is deasserted, MSM comes out of reset. and PBL will assert PS_HOLD. PM8941 is on. 9. After FLCB, secondary poweron sequence takes place. LGE Internal Use Only - 178 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 179 Check PM8941 (U6002) Of PM8941 is High?(1.8V) PS_HOLD pin Check MSM8974 (U3000) Of MSM8974 is High?(1.8V) Check SDRAM(U5000) And eMMC(U5001) LGE Internal Use Only - 179 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 180 3. TROUBLE SHOOTING KBR11000 R11010 U5003 U3000 U6002 X6000 U6000 LGE Internal Use Only - 180 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 181 3. TROUBLE SHOOTING U7000 U5001 LGE Internal Use Only - 181 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 182: Wireless Charging Troubleshooting

    TS_CTRL C15020 BOOT2 Rev10 (0717) C15021 0.47u CLMP2 R15016 ILIM C15022 COM2 Rev11_BOM updated Rev11_BOM updated Rev11_BOM updated LGE Internal Use Only - 182 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 183 3 : Antenna itself has about 5.9uH self-inductance and 600mohm self-resistance (w/ RLC Meter) 4 : C-clip is cracked or separated from board LGE Internal Use Only E Internal Use Only LGE Internal Use Only - 183 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 184 Change Battery Cover Or C-Clip Charging OK? Is Signal OK? Charging OK? Change the SUB Board Charging OK? LGE Internal Use Only - 184 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 185: Usb Trouble Shooting

    If the pin 11~12 of CN16000 are short [USB_HS1_DP/DM SLIM1]] Rework(Replace) the D16001 Pin 11, 12 of CN16000 are USB Signal? Change Lower FPCB LGE Internal Use Only - 185 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 186 05/20 RevE => RevG MIPI_DSI0_LANE0_P TOUCH_RESET TOUCH_INT_N MIPI_DSI0_CLK_M MIPI_DSI0_CLK_P GREEN_LED_DRV RED_LED_DRV MIPI_DSI0_LANE1_M BLUE_LED_DRV MIPI_DSI0_LANE1_P USB_ID LCD_PWM MIPI_DSI0_LANE2_M MIPI_DSI0_LANE2_P VBUS_USB_IN_PM LGE Internal Use Only - 186 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 187 3. TROUBLE SHOOTING CN16000 C16018 D16001 FB16001 FB16000 C16025 C16024 C16026 D16009 D16010 D16008 CN16002 LGE Internal Use Only - 187 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 188: Hdmi Troubleshooting

    TP4(C12001) is 1.0V? HDMI Data Pin of U12001 is HDMI Check U12001and D16001 siginal Change main board or Lower FPCB LGE Internal Use Only - 188 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 189 COMMON_I2C_SCL CSCL CSDA AVDD33_IN1 AVDD33 COMMON_I2C_SDA revA->revB(04.22) (Slimport)+1V0_SLIMPORT_IOVCC +1V8_VREG_S3A U12002 RP114K101D-TRB U12002 +1V0_SLIMPORT_CVDD VOUT C12016 EAN62735301 R12013 SLIMPORT_IOVCC_EN LGE Internal Use Only - 189 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 190 RP114K331D-TRB U12000 0.3mm AVDD33 VOUT C12010 EAN62768701 R12001 SLIMPORT_AVDD33_EN +1V8_VREG_S3A TP3(C12009) U12002 U12000 U3000 TP4(C12001) TP2(C12007) U12001 TP1(C12012) LGE Internal Use Only - 190 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 191 3. TROUBLE SHOOTING CN16000 LGE Internal Use Only - 191 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 192: Download

    TOOL INFORMATION TOOL VERSION DLL NAME USB DRIVER Please Check the Version to “B2B” Name Part No. D/L Cable LGE Internal Use Only - 192 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 193 4. DOWNLOAD D821 LGD821 LGE Internal Use Only - 193 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 194 4. DOWNLOAD LGD821 LGD821 LGE Internal Use Only - 194 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 195 4. DOWNLOAD LGE Internal Use Only - 195 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 196 4. DOWNLOAD LGD821 LGD821 LGE Internal Use Only - 196 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 197 4. DOWNLOAD LGE Internal Use Only - 197 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 198 4. DOWNLOAD LGE Internal Use Only - 198 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 199 4. DOWNLOAD LGE Internal Use Only - 199 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 200 4. DOWNLOAD LGE Internal Use Only - 200 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 201 4. DOWNLOAD LGE Internal Use Only - 201 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 202 4. DOWNLOAD LGE Internal Use Only - 202 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 203 4. DOWNLOAD LGE Internal Use Only - 203 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 204 4. DOWNLOAD LGD821 LGD821 LGD821AT-00-V10a-SSV-XXX-JUN-03-2013+0.tot LGD821 LGE Internal Use Only - 204 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 205 4. DOWNLOAD LGD821 LGD821 LGD821AT-00-V10a-SSV-XXX-JUN-03-2013+0.tot LGD821 LGD821 LGE Internal Use Only - 205 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 206 4. DOWNLOAD LGD821 LGD821 LGE Internal Use Only - 206 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 207 4. DOWNLOAD LGD821 LGD821 LGD821 LGE Internal Use Only - 207 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 208 4. DOWNLOAD LGD821 LGD821 LGD821 LGE Internal Use Only - 208 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 209: Block Diagram

    Main/Sub MIC Slimport HDMI Slimport (QMC WCD9320) Receiver Audio Codec Transmitter SLIMBUS, I2S Ear-Phone (WCD9320) Fuel Gauge Speaker LGE Internal Use Only - 209 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 210 Ant. 2 B1/B4 PRX_MB3 SPDT B3/GSM1800 PRX_MB1 • GSM 1800/1900 B2GSM1900 • UMTS B1/2/4 PRX_MB2 • LTE B1/3/7 LGE Internal Use Only - 210 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 211 • CDMA BC0/10/1 DRX_B20 DRX_LB2 SPDT DP4T DRX_B7 Ant. 4 DRX_HB GNSS_INP • LTE B7 GNSS_INM • GPS LGE Internal Use Only - 211 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 212 BT_PCM_DOUT SW_5G_TX RF_SW_CTRL_3 C_RX AUDIO_PCM_DOUT_GPIO[82] BT_PCM_IN XO_IN WRF_XTAL_IN PM8941 XTAL SLEEP_CLK XO_OUT 37.4MHz WRF_XTAL_OUT LPO_IN 4 / 10 LGE Internal Use Only - 212 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 213 VDD_IO NFC_VEN SPI_INT REG_PU GPIO[94] 8941 SWPIO_1 Secure Element VDDSWP_OUT VBAT VDDSWP_OUT0 SWPIO_0 NFC_VPWR +3V0_USIM_NFC 5 / 10 LGE Internal Use Only - 213 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 214 -5V5_DDVDL SLIMPORT VPWR LDO(1.0V) OVP_OUT +1V8_VREG_S3A VCHG (BQ24192) 2.0 USB Conn. +1V0_SLIMPORT_IOVCC VBAT1 FUEL GAUGE Ext. Charger LGE Internal Use Only - 214 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 215 PM8941 VREG_S5 Reset Battery VREG_S6 Switch VDD_PON 0 ohm VREG_S7 VREG_S8 VDD_MSM_IO VBAT_SENSE_P +1V8_VREG_S3A BMS_CSP VBAT_SENSE_M BMS_CSN VBAT_SNS LGE Internal Use Only - 215 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 216 SDC1_CLK MSM_RESOUT_N RESOUT_N RESOUT_N WLAN_SDIO0~SDIO3 SDIO_DATA_0~3 SDC2_DATA_0~3 SDC2 WLAN_CMD Wi-Fi (BCM4335 CoB) SDC2_CMD SDIO_CMD WLAN_CLK SDC2_CLK SDIO_CLK LGE Internal Use Only - 216 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 217 LCD_PWM LCD_PWM PMIC +3V0_VREG_L22 VREG_L22 (PM8941) +1V8_VREG_L12 VREG_L12 GPIO_5 TOUCH_INT_N GPIO_8 TOUCH_RESET Reset Touch GPIO_7 TOUCH_I2C_SCL TOUCH_I2C_SDA GPIO_6 LGE Internal Use Only - 217 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 218 (PM8941) AMUX_USB_ID ID_OUT SLIMPORT_CBL_DET GPIO_13 CABLE_DET ANX_P_DWN_CTL GPIO_14 CHIP_PD_HV SLIMPORT_IOVCC_EN VOUT GPIO_08 DVDD10_1/2 AVDD10 SLIMPORT_AVDD33_EN GPIO_26 VOUT AVDD33_IN2 LGE Internal Use Only - 218 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 219 CLK_P / CLK_M MIPI_CSI2 MIPI_CSI2_LN2_P / N MIPI_CSI2_LN3_P / N MIPI_CSI2_LN4_P / N MCLK GPIO_17 RESET_N GPIO_18 GPIO_21 GPIO_22 LGE Internal Use Only - 219 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 220 SDA / SCL GPIO_67 COMPASS DRDY Proximity & Ambient Light Sensor SDA / SCL GPIO_61 Pressure Sensor SDA / SCL LGE Internal Use Only - 220 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 221 OVP IC (MAX14670E) DC_IN (PMIC) +5V0_OTG_OVP BAT_THERM MSM8974 Wireless Charging IC (BQ51013B) GPIO_24 BQ24192 +1V8_VREG_S3A (CHG IC Comparator LGE Internal Use Only - 221 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 222 Tx NC MODE SUB_MIC1_P MIC3_INP MAX14628 Rx ANC SUB_MIC1_N VDD_P3_01 MSM8974 MIC3_INM SUB MIC EAR_KEY_INT GPIO_64 EAR_SENSE_N GPIO_65 LGE Internal Use Only - 222 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 223: Circuit Diagram

    L1059 TX_PA_IN_B41 PGND R1024 B41 APT PA SKU1 : D820 Path VCTL R1025 SKU2 : D821 TX_B41(P1) TX_B7(P2) - 223 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 224 Path HHM1918A2 DNI_EAM62790201 L2033 C2088 U2006 C2091 DRX_B41(P3) TX/RX UNBAL BALAN1 Path VCTL FL2013 BALAN2 DRX_B7(P2) DRX_B41(P1) DRX_B7(P2) - 224 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 225 BF46 AN49 RFFE2_DATA GPIO_143/GRFC_28/RFFE2_DATA/PA_ON6 EBI1_CAL R3027 (1%) UART_TX BJ31 EBI0_ZQ R3032 (1%) BE49 EBI1_ZQ R3033 (1%) DNI_EAG63393101 BM10SB-0_8-14DP-0_4V - 225 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 226 4.3u 4.3u 4.3u +1V8_VREG_L12 change:revA->rev11_update(0903) revA->revB(04.24) +1V8_VREG_L12 '13.04.10-SAN +1V8_VREG_S3A +0V9_VREG_S4B +0V9_VREG_S2B C4104 C4105 4.3u 4.3u C4110 4.3u C4114 - 226 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 227 AJ12 DQ28_a DQ28_b AJ13 DQ29_a DQ29_b AH13 DQ30_a DQ30_b AJ14 DQ31_a DQ31_b LPDDR3_POP 16Gbit 800MHz 2Channel, 8Gbx2, x32 - 227 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 228 1.017 100K 1.800 0.000 OTG OVP control Check!! 100K 0829 BOOST_BYP_EN -> BOOST_BYP_BYP(QCT REV_D) Change : rev10->rev11 (0729) - 228 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 229 * PLACE S2B, S4B, S5B, S6B, S7B, S8B OUTPUT CAPACITORS CLOSE TO MSM * CONNECT REMOTE_GND_SNS GROUND TO MSM GROUND WITH SINGLE TRACE - 229 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 230: Fuel Gauge

    MIPI_DSI0_CLK_M MIPI_DSI0_CLK_P GREEN_LED_DRV RED_LED_DRV MIPI_DSI0_LANE1_M BLUE_LED_DRV MIPI_DSI0_LANE1_P USB_ID LCD_PWM MIPI_DSI0_LANE2_M MIPI_DSI0_LANE2_P VBUS_USB_IN_PM Change : revB->revC (0528) ENBY0057001 51338-6473 - 230 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 231 VT_CAM_MCLK Change:rev10->rev11(0729) CAM1_I2C_SDA ZD9002 CAM1_I2C_SCL '13.05.07:revA->revB(DW8757->DW8755) VT_CAM_RESET_N ENBY0039601 GB042-20S-H10-E3000 C9025 C9026 C9027 2.2u 2.2u 2.2u RCLAMP7522T D9002 EAH61892901 - 231 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 232 EJ_MIC MAX14628 EAH61693001 '13.03.18 EAN62656801 UCLAMP0541Z SEVY0008101 R10019 EVLC5S01033 EAR_SENSE_N DET_IN MBHC_HSDET (EARJACK_SENSE) Change:rev10->rev11(0729) C10020 C10021 220n revA->revB(13.05.02) - 232 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 233: Volume Key

    APDS-9930-200 Change : revA->rev11_update(0903) Change:revB->rev11_update(0903) Change:revB->rev11_update(0903) LS12T2-T EBF61974801 KBR11000 R11010 PHONE_ON_KEY_N C11009 ZD11000 R11021 R11022 UCLAMP0541Z EAH61693001 revA->revB(05.03) - 233 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 234 D12001 PESD5V0L5UK CAT_D5 CAT_D1 OJ12000 OJ12001 OJ12002 CAT_D4 ANODE CAT_D3 CAT_D2 SC12038 SC12037 EAH61733401 MBK63515501 MBK63515601 Add,Change:revD->rev10(0703) '13.05.08:revA->revB(added) - 234 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 235 C13058 C13041 C13042 VDD_LDO3P3 GND4 L13016 PGND C13055 Rev.C '13.06.04 0.1u C13057 1.2n WLAN_RX_5G L13017 Rev.C '13.06.04 '13.05.07:revA->revB(add) - 235 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 236 -42DB 150OHM OMNI 1.5 TO 3.6V 3.10 * 2.5 * 1.1T 1800 MIC16000 MAIN_MIC_GND RevH => Rev10 (0702) - 236 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 237: Wireless Charging

    NFC_WAKE_BCM UIM1_VREG_L9 NFC_VPWR VDD_EE +1V8_VREG_S3A +3V0_USIM_NFC C15037 R15038 NFC_VPWR VBAT1 C15044 C15045 C15046 C15047 4.7u 100n 100n 330n - 237 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 238: Bga Pin Map

    7. BGA PIN MAP 7. BGA PIN MAP U2004 – WTR1605L(top view) U2004 – WTR1605L(top view) Not Used LGE Internal Use Only - 238 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 239 7. BGA PIN MAP U3000 – MSM8974 U3000 – MSM8974 Not Used LGE Internal Use Only - 239 - Copyright © 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 240 7. BGA PIN MAP U5001 – eMMC memory U5001 – eMMC memory Not Used LGE Internal Use Only - 240 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
  • Page 241 7. BGA PIN MAP U6002 – PM8974(Top view) U6002 – PM8974(Top view) Not Used LGE Internal Use Only LGE Internal Use Only - 241 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 242 7. BGA PIN MAP U7000 – PM8841(Top view) U7000 – PM8841(Top view) Not Used LGE Internal Use Only - 242 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 243 7. BGA PIN MAP U10000 – WCD9320(top view) U10000 – WCD9320(top view) Not Used LGE Internal Use Only - 243 - Copyright © 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 244 7. BGA PIN MAP U12001 – ANX7808(top view) U12001 – ANX7808(top view) Not Used LGE Internal Use Only LGE Internal Use Only - 244 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 245 7. BGA PIN MAP U13000 – BCM4330(top view) U13000 – BCM4330(top view) Not Used LGE Internal Use Only - 245 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 246: Pcb Layout

    - no display backlight U6002 : PMIC PM8974 - no power on, - no booting, - no charging LG-D821_MAIN_EAX65371701_1.0_TOP - 246 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 247 R8044 D8002 L1072 R5010 TP11001 R5011 TP8002 TP8001 TP8003 R1027 U1000 : RF1492A FEM module network service LG-D821_MAIN_EAX65371701_1.0_BOT - 247 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 248 8. PCB LAYOUT LG-D821_F_LOWER_EAX65353201_1.0_TOP - 248 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 249 C16002 R16022 ZD16007 C16027 ZD16003 ZD16006 C16028 C16000 C16022 R16020 ANT16003 ZD16002 C16020 ZD16005 VA16003 R16001 C16011 LG-D821_F_LOWER_EAX65353201_1.0_BOT - 249 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 250 8. PCB LAYOUT LG-D821_1.0_TOP - 250 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 251 C15003 C15041 C15040 R15042 R15027 C15039 C15047 C15038 TP15000 ANT15001 R15038 C15034 L15002 C15036 ANT15000 C15030 C15032 LGD821_1.0_BOT - 251 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 252: Calibration

    Power Supply 5.3V Power Supply_Phone Power Supply 5.0V RF Test Equipment CMW500, RF800A NOTICE CMW500 RF Cable connection LGE Internal Use Only - 252 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 253 9. CALIBRATION D821 MS695 [Tachyon36]LGMS695_20120213_Calibration LGE Internal Use Only - 253 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 254 9. CALIBRATION LGD821 LGE Internal Use Only - 254 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 255 9. CALIBRATION LGD821 LGE Internal Use Only - 255 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 256 9. CALIBRATION LGE Internal Use Only - 256 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 257 9. CALIBRATION LGD821 LGD821 LGD821 LGD821 LGD821 LGD821 LGD821 LGD821 LGD821 LGE Internal Use Only - 257 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 258 9. CALIBRATION LGE Internal Use Only - 258 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 259 Shield Box USB Cable RF Connection Cable USB cable (A-B type) (P/No : BJAY0020060) GPIB cable (IEEE-488) (P/No : BJAY0020058) LGE Internal Use Only - 259 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 260 9. CALIBRATION LGE Internal Use Only - 260 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 261 9. CALIBRATION LGE Internal Use Only - 261 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 262 9. CALIBRATION LGE Internal Use Only - 262 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 263 9. CALIBRATION Tachyon 36 Tachyon_36 LGE Internal Use Only - 263 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 264 9. CALIBRATION 5.0V LGE Internal Use Only - 264 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 265 9. CALIBRATION LGE Internal Use Only - 265 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 266 9. CALIBRATION LGE Internal Use Only - 266 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 267 9. CALIBRATION LGD821 MS695 MS695 LGE Internal Use Only - 267 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 268 9. CALIBRATION LGD821 LGD821 LGD821 LGD821 LGD821 LGD821 LGD821 LGE Internal Use Only - 268 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 269 9. CALIBRATION D821 MS695 MS695 D821 MS695 MS695 LGE Internal Use Only - 269 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 270 9. CALIBRATION D821 MS695 RF900 LGE Internal Use Only - 270 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 271: Disassemble Guide

    10. DISASSEMBLE GUIDE 10. DISASSEMBLE GUIDE 1. Disassemble SIM tray Remove SIM tray (by opener) LGE Internal Use Only - 271 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 272 A -> B -> C -> D -> E (Hook 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7 -> 8 -> 9 -> 10 -> 11 -> 12 -> 13 -> 14 -> 15) Start LGE Internal Use Only - 272 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 273 After remove SIM Tray, between power button and middle of SIM tray hole insert spatula and disassemble hook. Start LGE Internal Use Only - 273 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 274 10. DISASSEMBLE GUIDE A -> -> C -> D -> E Disassemble top side hook LGE Internal Use Only - 274 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 275 10. DISASSEMBLE GUIDE A -> B -> -> D -> E LGE Internal Use Only - 275 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 276 10. DISASSEMBLE GUIDE A -> B -> C -> -> E A -> B -> C -> D -> LGE Internal Use Only - 276 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 277 Remove REAR COVER by pulling the side of REAR COVER, after unscrewing 6 points (Follow the order of the pictures) LGE Internal Use Only - 277 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 278 1. Remove FPCB CONNECTOR 4EA and COAXIAL CABLE CONNETOR from PCB 2. Remover MAIN PCB 3. Remove BATTERY pushing tool on the top side of BATTERY LGE Internal Use Only - 278 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 279 10. DISASSEMBLE GUIDE 5. FPCB & ANT Remove 1. Unscrew 2 Points 2. Remove MAIN ANNTENA 3. Remove FPCB 2EA LGE Internal Use Only - 279 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 280 10. DISASSEMBLE GUIDE 6. Main PCB Remove Remove Can, Shield 2EA from MAIN PCB LGE Internal Use Only - 280 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 281: Exploded View & Replacement Part List

    11. EXPLODED VIEW & REPLACEMENT PART LIST This document is draft version, so the contents will be updated after registering the final one. LGE Internal Use Only - 281 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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