LG LM-X120HM Service Manual
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LG LM-X120HM Service Manual

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MOBILE PHONE
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL
LM-X120HM
MODEL :
Internal Use Only
Date: June 2019 / Issue 1.0

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Summary of Contents for LG LM-X120HM

  • Page 1 Internal Use Only MOBILE PHONE SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT, READ THE “SAFETY PRECAUTIONS” IN THIS MANUAL LM-X120HM MODEL : Date: June 2019 / Issue 1.0...

  • Page 2: Table Of Contents

    3.9 Checking LCD Block 3.10 Checking Touch Block 3.11 Checking Compass sensor Block(NO) 3.12 Checking accel & gyro Block 3.13 Checking proximity Block Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 3: Introduction

    This manual provides the information necessary to repair, calibration, description and download the features of this model. 1.2 Regulatory Information A. Security This material is prohibited to share and release to unauthorized person, in accordance with the regulations, LG Electronics, Civil / criminal responsibility in accordance with the relevant provisions violate. B. Precautions for repair •...

  • Page 4: Performance

    925 – 960 LTE17 704 – 716 734 – 746 LTE28 703 – 748 758 – 2620 LTE66 1710 – 1780 2110 – 2180 Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 5: Hw Features

    Type CMOS image sensor Resolution 3264(H) X 2448(V) pixels. Image Scaling Down 4:3(8.0MP – 3264x2448) Format Image : JPG, Video : MP4 Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 6 12. WLAN Standard IEEE 802.11 b/g/n Throughput Max 112Mbps Depend on environment 0 ~ 15m (depend on environment) 13. GPS type A-GPS, Glonass Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 7: Rssi Display

    LCD off (PP=5) (PP=5) (Lvl=5) 12 mA under 500 mA under 15 mA under LCD off (LTE 2.56s) (LTE 2.56S) (@TX 10 dBm) Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 8: Battery Bar

    6%  5% : One Time popup (No call) Critical Low battery pop-up There is no pop-up until 3% if you delete pop-up. Power off Under 1% Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 9: Sw Specification

    3264x2448, 3328x1872, 3264x1632, 2560x1920, 2560x1440, 2560x1280, 2448x2448, 1840x1840 front capture : 2560x1920, 2560x1440, 2560x1280, 1920x1920, Continuous Shot Quality Preview Image TV-Out Flash Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 10 Music ringtone MP3, AAC, AAC+, eAAC+, AMR, OGG, FLAC, ALAC, PCM, WMA, OPUS AMR-NB Music player skin Music Player FM Radio Speakerphone Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 11 Dimming Clock Battery power Screen timeout supports 15s, 30s, 1min, 2min, 5min 10min, 15min External power 15s, 30s, 1min, 2min, 10min, 15min Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 12 Mute Cell Broadcast Read Cell Broadcast Cell Broadcast Categories Cell Broadcast Message Language Supports filtering with language IDs (German,Italian,French, Spanish, Dutch,Swedish,Danish,Portuguese,Finnish,Norweggian, Greek,Turkish,Hungarian,Polish,Czech) Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 13 Last Call Charge Units Total Call Timer Total Charge Units Visible, Audible Call Time/Cost Indication Supp. Services Call Forwarding All Incoming Calls, No Reply Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 14 Max bytes is it, According to inserted usim Moving Picture Attachable Video MMS Max bytes is it, According to inserted usim Voice Attachable Help Menu Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 15 Scheduler Schedule To Do List Memo D-day counter Send via Bluetooth World Time Setting Local Time Display Two Number of Cities Time Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 16 Screen timeout supports 15s, 30s, 1min, 2min, 10min, 15min External power 15s, 30s, 1min, 2min, 10min, 15min Power-off Alarm On Alarm Event Display Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 17: Checking Xo Block

    Change X0801 Check next step and Retest TP1 Is it 26 MHz? TP1 (X0801) Check other XO signal path Circuit Diagram TP1 (X0801) Copyright ⓒ 2019 LG Electronics. Inc. LGE Internal Use Only All right reserved. Only training and service purposes...

  • Page 18: Checking Transceiver Dc Power Supply Circuit Block

    The Problem may be Check TP2 Logic part Refer to +1.2V_RF is OK? Logic trouble shoot TP2(1.2V) Check next step Circuit Diagram TP1(1.8V) Copyright ⓒ 2019 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 19: Checking Dc-Dc Block

    Refer to Logic trouble shoot Check TP2 Check U0704 Physical Damage 0.5V ≤ TP2 ≤ 4.4V ? or soldering condition Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 20: Asm Block

    Refer to Logic trouble shoot (1.7V≤TP2 ≤1.9V) TP1(3.5V) GOOD Check Replace U1513 U1513 physical Damage or soldering condition Circuit Diagram Check Next step TP1(3.5V) TP2(1.8V) Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 21: Gsm, Wcdma, Lte Part

    GSM RF Part support GSM850/900/1800/1900 with ASM, PAM, Transceiver component Checking Flow START Check OTA performance Check RF Conductive Check ASM Check RF path Check MT6177 Check other signal path Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 22 3. TROUBLE SHOOTING 3.5 GSM, WCDMA, LTE PART 3.5.1 GSM RF PART GSM850/900/1800/1900 Tx/Rx Path GSM850/900 RX/GSM1900 GSM18001900 RX/GSM1 RX/GSM850 RX/GSM900 Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 23 Checking RF signal path (SW) Checking Flow Image CON1501 Main START Change  CON1501 and  retest RF conductive TP1(CON1501) Check RF Conductive CON1501 Check RF signal path Circuit Diagram Check Antenna path Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 24 Checking Flow Image Main U1301 START U1509 Change  U1513 and  Check TP1 retest RF conductive U1513 NOT GOOD Check TP2 Change  U1509 and  Matching circuit  retest Circuit Diagram Change  U1301  and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 25 Checking RF Signal RX path(GSM900) Image Checking Flow Main U1301 START Change  U1513/L1519/L1520/ Check TP1 L1521 and retest RF conductive U1524 Change  U1524/L1548/R1531/ R1532/L1522/L1523/L1524/C1 U1513 Check TP2 512 and retest Change  U1301  and retest Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 26 Checking RF Signal RX path(GSM1800) Image Checking Flow Main U1301 START Change  U1513/L1525/C1515/ Check TP1 L1526 and retest RF conductive U1514 Change  U1514/L1505/R1505/ R1506/L1527/L1528/L1529/C1 Check TP2 518 and retest U1513 Change  U1301  and retest Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 27 Checking RF Signal RX path(GSM1900) Checking Flow Image U1301 Main START Change  U1513/L1536/C1521/ Check TP1 L1537 and retest RF conductive U1516 Change  U1516/L1538/C1522/ Check TP2 L1539/C1523 and retest U1513 Change  U1301  Circuit Diagram and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 28 3. TROUBLE SHOOTING 3.5 GSM, WCDMA, LTE PART 3.5.1 GSM RF PART GSM850/900/1800/1900 Tx Main 1.GSM850/GSM900 TX PATH 2.DCS1800/PCS1900 TX PATH 3.COMMON TX/RX PATH Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 29 Check TP1 is it 3.4v-4.3v Check TP2 is it Vbat? Circuit Diagram Rework R1543, Check TP3 is it 1.8V TP1/2power=Vbat: 3.4V-4.3V Check other related RF path Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 30 WCDMA RF Part support WCDMA B1/2/4/5/8 with FEM, PAM, PA, Transceiver component Checking Flow START Check OTA performance Check RF Conductive Check ASM Check PA&RF path Check MT6177M Check other signal path Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 31 START u1513 U1402 Change  U1513/L1532/C1541/ L1530/ and retest RF Check TP1 conductive Circuit Diagram Change  U1521/C1481/L1451/ Check TP2 C1480  and retest Change  U1402/C1466/L1419/ C1465/C1463and retest RF  Check TP3 conductive Change  U1301  and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 32 Checking Flow Image Main U1301 START U1521 Change  U1513/L1530/C1514/ L1532 and retest RF  Check TP1 conductive Change  U1521/L1547/R1527 U1513 Check TP2 /R1528/L1533/L1534/L1535 /C1516 and retest RF conductive Change  U1301  and retest Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 33: Wcdma Part

    Checking RF Signal DRX path(WCDMA/LTE_B1/4/66) Checking Flow Image U1606 START U1605 Change  U1606/L1624/C1612/ Check TP1 L1626 and retest RF conductive U1301 Change  U1605/L1621/C1610/ L1625/C1611 and retest Check TP4 Change  U1301  and retest Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 34 START U1402 U1516 Change  U1513/L1536/C1521/ L1537/ and retest RF Check TP1 conductive u1513 Change  U1516/C1413/L1405/ Check TP2 C1414  and retest Circuit Diagram Change  U1402/C1466/L1419/ C1465/C1463and retest RF  Check TP3 conductive Change  U1301  and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 35 3. TROUBLE SHOOTING 3.5 GSM, WCDMA, LTE PART 3.5.2 WCDMA PART Checking RF Signal PRX path(WCDMA/LTE_B2), is same as RF Signal RX path(GSM1900) Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 36 Checking RF Signal DRX path(WCDMA/LTE_B2) Checking Flow Image U1606 START U1605 Change  U1606/L1624/C1612/ Check TP1 L1626 and retest RF conductive U1301 Change  U1605/L1622/C1608/ L1623/C1609 and retest Check TP4 Change  U1301  Circuit Diagram and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 37 START u1402 U1502 Change  U1513/L1561/L1559/ L1560/ and retest RF Check TP1 conductive u1513 Change  U1502/L1409/L1410/ Check TP2 L1411 and retest Circuit Diagram Change  U1402/C1466/L1419/ C1465/C1463and retest RF  Check TP3 conductive Change  U1301  and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 38 Checking RF Signal PRX path(WCDMA/LTE_B4) Checking Flow Image Main U1301 START U1502 Change  U1513/L1561/L1559/ Check TP1 L1560 and retest RF conductive Change  U1502/L1566/L1562/ L1565/C1538 and retest Check TP2 U1513 Change  U1301  and retest Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 39 3. TROUBLE SHOOTING 3.5 GSM, WCDMA, LTE PART 3.5.2 WCDMA PART Checking RF Signal DRX path(WCDMA/LTE_B4), is same as DRF Signal RX path(WCDMA/LTE_B1) Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 40 START Change  U1513/L1517/C1510/ L1513 and retest RF Check TP1 conductive Change  U1509/L1425/C1409/ Check TP2 L1401/C1410 and retest U1301 Change  U1402/C1430/R1401/ R1402/C1467 and retest RF  Check TP3 conductive U1509 U1513 Change  U1301  and retest Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 41 3. TROUBLE SHOOTING 3.5 GSM, WCDMA, LTE PART 3.5.2 WCDMA PART Checking RF Signal PRX path(WCDMA/LTE_B5), is same as RF Signal RX path(GSM850) Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 42 Checking RF Signal DRX path(WCDMA/LTE_B5) Checking Flow Image U1606 START U1608 Change  U1606/L1644/L1605/ Check TP1 and retest RF conductive U1301 Change  U1608/L1608/L1609/ L1610/C1601 and retest Check TP2 Change  U1301  and retest Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 43 START Change  U1513/L1519/L1520/ L1521 and retest RF Check TP1 conductive U1402 U1524 Change  U1524/C1411/L1402/ Check TP2 u1513 C1412  and retest Change  U1402/C1430/R1401/ R1402/C1467 and retest RF  Check TP3 conductive Circuit Diagram Change U1301  and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 44 3. TROUBLE SHOOTING 3.5 GSM, WCDMA, LTE PART 3.5.2 WCDMA PART Checking RF Signal PRX path(WCDMA/LTE_B8), is same as RF Signal RX path(GSM900) Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 45 START Change  U1606/L1612/C1626/ U1606 L1614 and  Check TP1 U1301 retest RF conductive U1612 Change  U1609/L1629/L1645 Check TP2 retest Change  U1609/L1631/L1630 Circuit Diagram /L1632/L1613 Check TP3 and retest Change  U1301 and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 46 3. TROUBLE SHOOTING 3.5 GSM, WCDMA, LTE PART 3.5 WCDMA PART WCDMA DRX PATH 1.WCDMA COMMON DRX PATH Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 47 START Change  U1513/L1525/C1515/ U1514 L1526 and retest RF Check TP1 conductive U1513 Change  U1514/C1415/L1540/ Check TP2 C1416  and  retest Circuit Diagram Change  U1402/C1466/L1419/ C1465/C1463 and retest RF  Check TP3 conductive Change  U1301  and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 48 3.5 GSM, WCDMA, LTE PART 3.5.3 LTE RF PART LTE RF Part (B3)---PRX,The same as RF Signal RX path(GSM1800) Checking Flow Image Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 49 Checking Flow Image U1605 U1301 U1606 START Change  U1606/L1624/C1612/ L1626 and retest RF Check TP1 conductive Change  U1605/L1622/C1608/ Check TP2 Main L1623/C1609 and  retest Change  U1301  and retest Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 50 Change  U1513/L1550/C1519/ U1402 L1544 and retest RF Check TP1 conductive U1515 Change  U1515/C1408/L1407/ Check TP2 C1407  and  retest U1513 Change  U1402/C1461/R1405/ C1460/C1476 and retest RF  Check TP3 conductive Change  U1301  and retest Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 51 Checking Flow Image START U1301 Change  U1513/L1550/C1519/ L1544 and retest RF Check TP1 conductive U1515 Change  U1515/L1508/R1508/ Check TP2 R1509/L1518/C1517/L1549/C 1525 and  Main U1513 retest Change  U1301  and retest Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 52 Checking Flow Image U1301 U1605 U1606 START Change  U1606/C1602/L1606 and retest RF Check TP1 conductive Change  U1602/L1638/C1617/ Check TP2 L1639/C1616 and  Main retest Change  U1301  and retest Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 53 START U1512 Change  U1513/L1511/C1511/ L1570/C1540 and retest RF Check TP1 conductive U1513 Change  U1512/L1540/C1520/ Check TP2 L1541 and  retest Change  U1402/C1448/L1418/ L1426 and retest RF  Check TP3 Circuit Diagram conductive Change  U1301  and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 54 LTE RF Part (B17)---PRX Checking Flow Image U1701 Main START Change  U1513/L1540/C1520/ U1523 Check TP1 L1541 and retest RF conductive Change  U1512/L1551/R1511/ U1513 Check TP2 R1512/C1501/C1502and Matching  circuit  retest Change  U1701  and retest Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 55 Checking Flow Image U1301 START U1606 Change  U1606/L1602/R1604 /L1615/L1616/ and retest RF Check TP1 conductive Main Change  U1611/L1618/L1642/ Check TP2 L1643/C1603 and  retest Circuit Diagram U1611 Change  U1301  and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 56 Change  U1513/L1554/C1532/L1553 U1522 and retest RF Check TP1 conductive Change  U1406/C1428/L1482/ Check TP2 C1429 and  retest U1513 Change  U1402/C1430/R1401/ R1402/C1467 and retest RF  Check TP3 conductive Change  U1301  Circuit Diagram and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 57 Main Checking Flow Image START U1701 U1522 Change  U1513/L1554/C1532/L1553 Check TP1 and retest RF conductive Change  U1406/C1536/L1556/ Check TP2 U1511/L1516/L1558/L1557/   C3517/C1539 and  U1513 retest Change  U1301  and retest Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 58 Checking Flow Image Main U1606 U1701 START U1612 Change  U1606/L1601/L1640 and retest RF Check TP1 conductive Change  U1612/L1603/C1604/ Check TP2 L1607/C1631 and  retest Circuit Diagram Change  U1301  and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 59 U1701 L1564/C1531/L1563/U1523 Check TP1 and retest RF conductive U1523 Change  U1402/C1425/L1480/ Check TP2 C1426 and  retest Change  C1430/R1401/ U1513 R1402/C1467 and retest RF  Check TP3 conductive Change  U1301  Circuit Diagram and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 60 Checking Flow Image START Change  U1513/R1513/L1531/R1530/ U1701 L1564/C1531/L1563/U1523 Check TP1 and retest RF conductive Change  U1406/C1529/L1515/ Check TP2 U1511/L1516/L1558/L1557/   U1511 C3517/C1539 and  retest Change  U1301  and retest U1513 Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 61 Checking Flow Image Main U1606 U1701 START U1612 Change  U1606/L1601/L1640 and retest RF Check TP1 conductive Change  U1612/L1603/C1604/ Check TP2 L1607/C1631 and  retest Circuit Diagram Change  U1301  and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 62 Change U1502/L1409/L1410/L141 Check TP2 1 and retest u1513 Change U1402/C1466/L1419/ Check TP3 C1465/C1463and retest RF conductive Circuit Diagram Change U1301 and retest Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 63 Main L1560 and retest RF conductive U1301 Change U1502/L1566/L1562/ Check TP2 U1502 L1565/C1538 and retest Change U1301 and retest U1513 Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 64: Lte Part

    Change U1606/L1624/C1612/ Check TP1 L1626 and retest RF conductive U1301 Change U1605/L1621/C1610/L162 Check TP4 5/C1611 and retest Change U1301 and retest Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 65: Power

    Checking Power signal (Battery connector, Power Key, PMIC Regulator) TP2 (J0902) TP1 (J1209) TP3 (X0801) TP4 (L0701) TP5 (L0702) TP6 (L0703) TP7 (L0705) Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 66: Charger

    Is it charging properly After turning on? Charging BTB (J0101) Change the Charging IC I/O connector(J0102) ( U0701 ) Change the Main PCB Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 67: Audio Receiver

    Check the Receiver. And reconnect RCV module Hear the Voice through the RCV? Change damaged contact pad. Change RCV  Module Change Main Board Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 68: Audio Speaker

    And reconnect SPK module Placement Hear the Voice through the SPK? Change damaged contact pin Change SPK  Module Change Main Board Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 69: Audio Main Mic

    And reconnect PCB Main Mic (U0101) Hear the Voice through the RCV in loopback test ? Change MIC Change Main Board Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 70: Audio Sub Mic

    Check the MIC filter And reconnect PCB Hear the Voice through the SPK in 2mic loopback test ? Change MIC Change Main Board Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 71: Audio Ear Mic Jack

    Check the Headset Icon And reconnect EARJACK FPCB Hear the Voice through the Headset? Earjack (CON0901) Change Earjack Connector Change Main Board Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 72: Fm Radio

    It’s operating FM Radio. Checking Flow Placement Start Hear the FM through the Headset? L1707 Check the L1707? Change Main Board Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 73: Checking Lcd Block

    Disconnect and reconnect LCD Connector (CON1202), and check the connector Connector Display OK? TP1~3 is Change the LCD module Change the main LCD Display board Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 74 3. TROUBLE SHOOTING 3.9 Checking LCD Block Main LCD control signals are generated by MT6739 Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 75: Checking Touch Block

    Check power TP1, OK? Touch Reset (TP2) & Touch I2C (TP4,5) OK? Change Change LCD Module ? the Main/SUB Board Does it works? Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 76 3.10 Checking Touch Block Touch Parts on the main board Touch control signals are generated by MT6739 Circuit Diagram-Main Board Circuit Diagram-SUB Board Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 77 Check the sensor function Function is OK? Calibration OK? Change the Sensor IC(U1004) Circuit Diagram Function is OK? Change the main board Function is OK? Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 78: Checking Proximity Block

    Object moved at the Proximity sensor LCD off? Check power (R1012) Circuit Diagram Power (R1012) Output work well? Change the main board Function is OK? Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 79: Checking Main Camera Block

    Replace Camera Module TP1 : 2.8V Camera is OK? Replace Main PCB TP5 : MCLK TP3: 1.2V TP4 : 2.8V TP2 : 1.8V Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 80: Checking Front Camera Block

    Circuit Diagram Check MCLK TP4 is OK? Replace Camera Module Camera is OK? Replace Main PCB TP1: 2.8V TP2: 1.8V TP3: 1.2V Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 81: Checking Motor Block

    (J0106,J0107) Check R0132 Motor Driver (VIBR_PMU) IC power & Main PCB VPWR(TP1)? Circuit Diagram R0132 (VIBR_PMU) Replace Motor Circuit Diagram Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

  • Page 82: Checking Bt/Wifi/Gps Block

    PMU TP3 (1.3V) TP3 (1.3V) TP1 (3.3V) Re-solder or Check TP2 Supply voltage OK? change PMU Check Nest step TP2(1.8V) Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. Circuit Diagram LGE Internal Use Only Only training and service purposes...
  • Page 83 3.17 Checking BT/Wi-Fi/GPS block 3.17 BT/Wi-Fi/GPS PART 3.17.2 BT&WIFI&GPS Trouble Shooting BT/WIFI/GPS Signal Path 2.4G/GPS Diplexer 2.4G SAW Main Bot GPS SAW Main GPS LNA Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 84 4.BLOCK DIAGRAM BLOCK DIAGRAM Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 85 [MH6_Block Diagram] eMCP MSDC0(8) (16GB eMMC/1GB LPDDR3) MIPI_CSI (4 lane) 8M AF MIPI_CSI(4 lane) MIPI_CSI (2 lane) 5M FF GPIO FLASH DRIVER FLASH MT6739 Accel+ Proximity/ALS Sensor Touch Panel Driver MIPI_DSI(2lane) WIFI/GPS 5.45”FWVGA (480*960) WIFI_IQ BT/WiFi WIFI FILTER BT_SSBI (MT6625L) (LCD B/L DRIVER) WLAN_DATA SIM1&SIM2...
  • Page 86 VDD_IO_1P8 LCM_LEDA VCN28_PMU VDD_FM VCN28 LCM_LEDK VDD_GPS_LNA Audio PA MT6625L VIO18 VIO18_PMU VCN33 VDD_WB LCM LED DRIVER VIBR VPROC Motor VMC_PMU Copyright ⓒ 2019 LG Electronics. Inc. DVDD_DVFS1 LGE Internal Use Only All right reserved. Only training and service purposes...
  • Page 87 RF Block GSMHB_IN TXO3 (2G HB) GSMLB_IN TXO4 (2G LB) B1 TRX B1 TX B2 TRX B2 TX ANT#1 B3 TRX B3 TX B1/B2/B3/B4/B5/B7/B 8/B17/B20/B28/B38/B B4/B66 TRX B4/B66 TX 40/B41/B66/ B5 TRX B5 TX GSM_LB/GSM_HB TXO1 (LTE HB) B7 TRX B7 TX MMPA TXO2 (LTE MB) B8 TRX...
  • Page 88 CLK_T, CLK_C, CKE, NC3 EBI_DQS[0:3], DQS_B[0:3] EBI_DQS DQS[0:3]_T, DQS[0:3]_C VREF_EMI EBI_CA[0:9] EBI_CA[0:9] CA[0:9] VREFCA EBI_DM[0:3] EBI_DM[0:3] DM[0:3] VREFDQ EBI_DATA[0:31] EBI_DQ[0:31] DQ[0:31] eMMC 16GB LPDDR3 1GB LGE Internal Use Only Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. Only training and service purposes...
  • Page 89 Backlight DISP_PWM LCD_LED_A DISP_PWM MT6739 Driver I2C0_SDA I2C0_SCL KP2COL EINT12 LCD_MIPI_DATA[0:1]_P MIPI_DSI_LN[0:3]_P LCD_MIPI_DATA[0:1]_N MIPI_DSI_LN[0:3]_N LCD_MIPI_CLK_P MIPI_DSI0_CLK_P LCD_MIPI_CLK_N MIPI_DSI0_CLK_N LCD_MAKER_ID LCM_ID LCD_RESET_N LCM_RST LGE Internal Use Only Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. Only training and service purposes...
  • Page 90 (5M FF) 1.2V LDO UART1TX +2V8_CAM_AVDD 2.8V LDO CAM_AVDD_EN I2S1_BCK VT_CAM_MCLK CMMCLK1 VT_CAM_RESET_N UART1RX MT6739 VBAT 0OHM VCAMA_PMU(AVDD) VCAMA VCAMD_PMU(DVDD) VCAMD 0OHM LGE Internal Use Only Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. Only training and service purposes...
  • Page 91 System Logic Block Diagram : SENSOR, MOTOR SENSOR0_I2C_SDA PMIC I2C1_SDA MT6357 VIO18_PMU SENSOR0_I2C_SCL I2C1_SCL Acc. ACCEL_INT EINT7 VIBR VIBR_PMU MT6739 GPIO_FLASH_EN VBAT I2S0_BCK FLASH DRIVER GPIO_FLASH_STROBE I2S0_LRCK Motor EINT13 EINT2 SPI1_MI SPI1_CS SPI1_MO SPI1_CK...
  • Page 92 MIC_IN1_N AU_VIN0_N PMIC MIC_IN1_P AU_VIN0_P MT6357 SUB_MIC MIC_BIAS_1 AU_VIN2_N MIC_IN3_N AU_VIN2_P MIC_IN3_P Ear-jack SPK_R AU_HPR SPK_L AU_HPL S/W_DETECT HP_EINT AU_VIN1_N AU_VIN1_P (EAR_MIC_JCK_OUT) LGE Internal Use Only Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. Only training and service purposes...
  • Page 93 CONN_SEN WB_SEN GPS_IN GPS_RFIN GPS LNA GPS FILTER MT6625L GPS_RX_I_P&N GPS_RXI GPS_RX_I GPS_RX_Q_P&N GPS_RXQ GPS_RX_Q CONN_XO_IN XIN_WBG XO_IN MT6739 PMIC_CLK_WCN MT6357 DCXO LGE Internal Use Only Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. Only training and service purposes...
  • Page 94 Pull-up : VIO18_PMU I2C1_SCL/SDA Pull-up : VIO18_PMU A/PS SENSOR ALS+PS+IR SENSOR MT6739 Pull-up : VIO18_PMU Main Camera I2C2_SCL/SDA Pull-up : VIO18_PMU FRONT Camera I2C3_SCL/SDA LGE Internal Use Only Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. Only training and service purposes...
  • Page 95 5.CIRCUIT DIAGRAM CIRCUIT DIAGRAM Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 96 U0301-C MT6739-SBS U0301-B TCP [11] [11] MT6739-SBS TCN [ 11] U0301-A [11] MT6739-SBS ABB_IF [11] RDP0 RDP0 TDP0 TDP0 [11] [11] RDN0 RDN0 TDN0 TDN0 [11] PMU_IF DRAM_IF R0301 AB28 AA16 [12] SIM1_SCLK SIM1_SCLK LTEX26M_IN PMIC_CLK_BB [8] RDP1 TDP1 AA28 [11] RDP1 TDP1...
  • Page 97 U0301-E MT6739-SBS U0301-D VOCRE VPROC MT6739-SBS DVDD_DVFS DVDD_DVFS MSDCs C0401 C0402 DVDD_DVFS DVDD_CORE DVDD_TOP DVDD_DVFS 22uF 22uF DVDD_TOP DVDD_DVFS [12] USB_DP MSDC0_RSTB DVDD_TOP DVDD_DVFS USB_DP MSDC0_RSTB [12] USB_DM DVDD_TOP DVDD_DVFS USB_DM C0404 C0406 C0415 DVDD_TOP DVDD_DVFS MSDC0_CMD MSDC0_CMD AA19 22uF DVDD_TOP DVDD_DVFS USB_VRT...
  • Page 98 U0301-F MT6739-SBS AVDD & MD_A AF11 VIO18_PMU AVDD18_MD DVSS AG11 DVSS AVDD18_AP DVSS DVSS DVSS DVSS AC14 DVSS AVSS18_MD AC15 DVSS AVSS18_MD AC16 DVSS AVSS18_MD AC17 DVSS AVSS18_MD AD13 DVSS AVSS18_MD AD16 DVSS AVSS18_MD AD19 DVSS AVSS18_MD AE13 DVSS AVSS18_MD AE16 DVSS AVSS18_MD...
  • Page 99 eMMC+LPDDR3 U0601 EMI0_CA0 [6] VDD1 VIO18_PMU EMI0_CA1 [6] VDD1 EMI0_CA2 [6] VDD1 EMI0_CA3 [6] VDD1 C0607 C0608 EMI0_CA4 [6] VDD1 EMI0_CA5 [6] VDD1 1.0uF EMI0_CA6 [6] 0.1uF VDD1 VDRAM_PMU EMI0_CA7 [6] VDD1 EMI0_CA8 [6] VDD1 EMI0_CA9 [6] GND GND VDD2 EMI0_DQ0 [6] VDD2 EMI0_DQ1 [6]...
  • Page 100 U0701-A MT6357V/A MT6357 VBUCK CTRL for EOS R0701 ¿ì³ä VSYS_SMPS VSYS VSYS_SMPS 1;+/-5% C0701 SH0701 1.0uF C0741 GND_SMPS GND_SMPS 22UF/0603 Switching Charger + No Power Path VPROC IN VPROC L close to chip L0701 VSYS_VPROC VPROC VSYS_VPROC VPROC DVDD_DVFS VSYS_VPROC VPROC SM5414W I2C address: 0X49 (Write:0x92, Read:0x93) 803401000971...
  • Page 101 U0701-C MT6357 Control I/F close to PMIC [12] PWRKEY PWRKEY VRTC28 C0819 NF_1nF C0804 FCHR_ENB R0804 [12] FCHR_ENB 1.5K 0.1uF U0701-D SYSRSTB RESETB MT6357 WDTRSTB_IN WATCHDOG R0802 UVLO_VTH UVLO_VTH AUDIO IF UL POWER 200K C0805 C0802 should be connected to AVSS28_AUD first and then to the main GND through single via. The trace width should b RTC32K_1V8_0 RTC32K_CK [3] SRCLKENA0...
  • Page 102 VSYS R0922 U0910 VIO18_PMU 2 VCC Earphone Audio C0955 NF_0.01uF CON0901 R0907 47K NF_FSA5157L6X HP_EINT R0920 R0911 1800ohm BEAD0901 HP_MIC [9] HP_MIC close to IC close to connector HP_MP3R EAR_DET[9] R_AUDIO EINT_EAR Note: 09-2 Note: 09-1 R0909 NF 1800ohm BEAD0903 HP_MP3L [9] L_AUDIO 1800ohm...
  • Page 103 for AC noise filter VIO18_PMU U1001 U1004 R1012 VIO28_PMU SDA1 [4,10,11] VDDIO [4,10,11] SCL1 INTB EINT_ALSPS SDA1 [4,10,11] SCL1 [4,10,11] VIO18_PMU 1.0uF R1007 VSYS LEDA VIO18_PMU GNDIO C1007 INT2 INT1 EINT_G [4] MN66238LKDNJA 1.0uF 0.1uF MC3416-P C1014 C1010 2.2uF VIO18_PMU C1012 R1009 PL-SENSOR...
  • Page 104 CON1102 TP-0.5MM TP-0.5MM TP-0.5MM TP-0.5MM TP1114 TP1113 TP1112 TP1110 LCM_PWM [12] C1161 VSYS R1133 NF_33PF VCAMIO_PMU DVDD_FCAM R1126 B1101 MCLK CAM_CLK1 [3] 600ohm R1113 U1101 R1134 L1102 DISP_PWM [3] SCL3 [4] RDP0 MDP0 R1135 [12] LCM_LEDK SDA3 [4] RDN0 MDN0 10uH COMP CTRL...
  • Page 105 VDD28_LCM VIO18_PMU TP-1.3MM TP-1.3MM TP-1.3MM TP-1.3MM TP-1.3MM TP1212 TP1211 TP1209 TP1210 TP1213 CON1202 R1252 R1243 J1206 J1210 J1208 J1207 C1245 C1246 R1210 NF_33PF NF_33PF FCHR_ENB LCM_ID1 [11] TDN3_L VIO18_PMU [11] [12] LCM_ID0 TDP3_L VBUS_USB_IN LCM__AVDD [11] LCM_AVDD R1204 R1242 NF_0 KPCOL0[4] USB_DM_C TDN2_L [11]...
  • Page 106 U1301 [15] RF_B2_PRX_RFIC PRX1 [15] RF_B4/66_PRX_RFIC PRX2 VRF18_RFIC VRF18_RFIC VDD_TXHF [15] RF_B7_PRX_RFIC PRX3 [15] RF_B1_PRX_RFIC PRX4 VRF12_RFIC VRF12_RFIC VDD_STXLV 0.1uF [15] RF_B5_PRX_RFIC PRX5 C1301 [15] RF_B8_PRX_RFIC PRX6 VRF18_RFIC 0.1uF VRF18_RFIC VDD_STXHF [14] RF_B40/B41_PRX_RFIC PRX7 C1302 [15] RF_B20/17_PRX_RFIC PRX8 VRF12_RFIC VRF12_RFIC VDD_RXLV 0.1uF [15]...
  • Page 107 L1425 1.0nH RF_B5_PA_DPX [15] RF_B5_PA_PA_1 L1401 4.3nH B28B 3.3PF C1410 5.6NH L1480 RF_B28B_PA_DPX [15] RF_B8_PA_DPX [ 15] L1402 4.3nH [33] 3.9PF 3.3PF C1425 C1412 B28A [15] L1482 5.6NH RF_B20/17_PA_DPX L1426 RF_B28A_PA_DPX [33] [15] L1418 1.0nH RF_B20/17_PA_PA_1 4.3nH 3.9PF C1428 3.3PF 4G PA input need LPF for harmonic rejection C1448 9.1nH...
  • Page 108 RF_TXDET [13] RES-0-0603 R1543 Band5/GSM850 VBAT ASM_Main 10PF 100PF C1543 TVS1501 [14] RF_B5_PA_DPX C1541 C1551 C1542 10uF U1509 SAYEY1G73BA0F0A R1536 RF_B5_TRX_DPX RF_B5_TRX_TXM [15] 5.1NH C1510 VRAMP_DCDC [3] 6.98K RF_B5_PRX_DPX_RFIP1 12nH RF_B5_PRX_DPX_RFIP2 22PF C1509 C1530 RF_B5_PRX_RFIC[13] GND20 GND11 220pF 10NH L1517 CON1501 GND21 SP16T...
  • Page 109 ANT1604 U1607 RF-SP4T-SKY19245-686LF ANT1602 Diversity-ANT SP12T ASM R1610 R1608 BPI_BUS14 [3] CTL2 LTE_VFE28 ANT1601 ANT1603 LTE_VFE28 BPI_BUS8 [3] C1633 C1618 100PF 100PF BPI_BUS15 CTL1 BPI_BUS2 [12] CTL3 [12] BPI_BUS3 RF_ANT_DRX_CARKIT R1603 DRX_ANT_1 CON1610 DRX_ANT 33PF C1632 33PF C1626 RF_ANT_DRX_ASM 1.0uF 33PF 33PF 100PF...
  • Page 110 WB_CTRL5 [4] WB_AVDD18 WB_CTRL4 [4] WB_CTRL3 [4] Close to Antena WB_CTRL2 [4] WB_CTRL1 [4] C1702 0.1uF WB_CTRL0 [4] U1703 RF-DUP-RFDIP1608060TM7T62 RF-SAW-F6HG2G441EG65 FL1700 R1704 R1717 WB_RX_IP ANT1701 C1703 100PF 2.4G/5G OUTPUT INPUT WB_ANT 50 Ohm WB_RX_IN R1714 R1715 CONC1701 R1716 50 Ohm 50 Ohm C1701 L1706...
  • Page 111 MARK SH6410 SH6411 SH6414 SH6412 SH6416 SH6413 SH6417 COVER-ALL COVER-ALL COVER-ALL COVER-ALL COVER-ALL COVER-ALL FIDUCIAL-MARK-1MM FIDUCIAL-MARK-1MM MARK6401 MARK6402 BB FRAME BB Power1 WCNÆÁ±ÎÕÖ Tranceiver ÆÁ±ÎÕÖ RF PA BB P2ÆÁ±ÎÕÖ FIDUCIAL-MARK-1MM FIDUCIAL-MARK-1MM MARK6403 MARK6404 ÈýºÏÒ»¿¨×ù·À¹ÎÌùƬ¸ÖƬ PROOF6403 ICO-WATERPROOF-D3 ANT1903 ANT1904 ANT1901 ANT1902 HOLE-VIA2.5MM HOLE-VIA1.6MM HOL4091...
  • Page 112 6. BGA PIN MAP U0301_MT6739WW_BB chip IC , Digital Baseband Processor(Top) U0601_16EMCP08-NL3DTB28,IC,MCP. eMMC+LPDDR3(Top) U0701_MT6357_IC,PMIC (Top)
  • Page 113 U0601 eMMC+LPDDR3 Card 16EMCP08-NL3DTB28 U1004 G-sensor MC3416-P J1206&J1210 IA key Connectors J1207&J1208&J1209&J1211 P ower on/Volume key Connect U1402 MMMB U0701 PMIC VC7643-26 MT6357V/A Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 115 U0902 Audio U1105 LED Dri U1513 SWITCH+PA U1101 Backlig J0902 Bat connector ht Driver CON1202 LCD U1203 OVP U0704 Charge IC Connector Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 117 7. PCB LAYOUT LG-model name-SUB Board_TOP J0101 SUB Connect J0103 TP Connect J0102 USB Connect Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 118 ART FILM - Adt ART FILM - Adt...
  • Page 119 7. PCB LAYOUT LG-model name-SUB Board_BOT J0104/J0105/J0106/J0107/J0108 VIB/SPK PIN U0101 MIC Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 120 ART FILM - Adb ART FILM - Adb...
  • Page 121 Prime PCB Revision P/N: 16EMCP08_NL3DTB28 Memory RAM Size: 1GB ROM Size: 16GB LMX120EMW; LMX120HM; LMX120BMW; Applied Models LMX120ZM; LMX120ZMW; LMX120JM; LMX120YMW; LMX120WM Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 122 - Enable “developer options” - Install Hidden menu apk and HWTest apk - Run HWTest app 3. MODEM TEST 2. HW Device Test Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 123 9. HIDDEN MENU 1. LCD 2. Power 3. Touch 4. Sensor 5. RF 6. BT 7. GPS Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 124 3. USB D/L Cable setting 4. Flash tool D/L setting ※ If you want more information, please refer LGST ServiceCenter Tool’s Notification“Download User Guide”. Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 125 3. Calibration Cable setting 4. Tachyon setting ※ If you want more information, please refer LGST ServiceCenter Tool’s Notification “RF Calibration User Guide”. Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 126 5. Disassemble Connector (4ea) 6. Disassemble main PCBA and 6. Disassemble HW Parts (9ea) 7. Complete Disassembling Sub PCBA Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 127 3. When disassembling the battery, the plastic bar is left to avoid damage to LCM_FPC Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 128 ② Use the disassemble card to disassemble the hook at the corner of the rear lens ③ The battery cover can be disassemble from the bottom Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 129 13. EXPLODED VIEW ACQ02 EBP01 EAB01 EAA00 EBP00 EBR03 EBR01 MDQ00 EAB00 EAU00 EBR02 ACQ01 EAD00 Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 130 37 EBR89449801 PCB Assembly,Flexible 1 EBR070500 38 MJN71573701 Tape,Window 1 MJN089300 39 MDJ66105001 Filter 1 MDJ000000 40 EBR89485101 PCB Assembly,Flexible 1 EBR070501 Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 131 1 C0104 77 EAE65264801 Capacitor,Ceramic,Chip 1 C0103 78 EAE65265201 Capacitor,Ceramic,Chip 1 C0101 79 EAE65969301 Capacitor,Ceramic,Chip 5 C0110,C0115,C0221,C0222,C0223 80 EAE66008901 Capacitor,Ceramic,Chip 1 L0203 Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 132 PCB Assembly,Main 1 EBR071900 118 EBR89520701 PCB Assembly,Main,Auto 1 EBR071400 119 EBR88966301 PCB Assembly,Main,SMT 1 EBR071800 120 EBR89476301 PCB Assembly,Main,SMT Top 1 EBR071700 Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 133 1 U0601 157 EAN66069601 IC,PMIC 1 U0701 158 EAP64508001 Inductor,Wire Wound,Chip 1 L0704 159 EAP64546701 Inductor,Multilayer,Chip 2 L1402,R1405 160 EAP64566602 Inductor,Multilayer,Chip 1 C1481 Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 134 1 R1254 197 EBC65477901 Resistor,Chip 1 R0302 198 EBC65478101 Resistor,Chip 1 R0802 199 EBC65478201 Resistor,Chip 1 R1012 200 MBK66212601 Can,Shield 1 SH6410 Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 135 1 C1546 237 EAE66046301 Capacitor,Ceramic,Chip 2 C1512,C1601 238 EAE66046401 Capacitor,Ceramic,Chip 1 C1476 239 EAE66046501 Capacitor,Ceramic,Chip 1 L1630 240 EAF63730601 Varistor 1 U1203 Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 136 1 U1605 277 EAM65552701 Filter,Duplexer 1 U1515 278 EAM65552801 Filter,Duplexer 1 U1509 279 EAM65572101 Filter,Separator,Switch 1 U1513 280 EAM65572401 Filter,Duplexer 1 U1523 Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 137 1 L1572 317 EAP65068701 Inductor,Multilayer,Chip 2 C1517,R1716 318 EAP65068801 Inductor,Multilayer,Chip 1 L1549 319 EAV64834101 LED,Flash 1 LED1101 320 EBC64738601 Resistor,Chip 1 R1330 Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 138 1 MJN009402 357 MBK66212501 Can,Shield 1 MBK070300 358 MBK66212701 Can,Shield 1 MBK070301 359 MCQ70510001 Damper 1 MCQ000001 360 MCQ70551501 Damper 1 MCQ000003 Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...
  • Page 139 1 EBP000001 365 FAB34040201 Screw,Machine 17 FAB010000 366 MEZ66516305 Label,Approval 1 MEZ002100 367 MEZ67947101 Label 1 MEZ000000 368 SAD37926801 Software,Mobile 1 SAD010000 Copyright ⓒ 2019 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only training and service purposes...

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