LG LM-X430EMW Service Manual
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LG LM-X430EMW Service Manual

LG LM-X430EMW Service Manual

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MOBILE PHONE
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL
LM-X430EMW
MODEL :
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means),
publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you
have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual.
The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service
Manual
Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved.
Only training and service purposes
Date: September 2019 / Issue 1.0

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  • Page 1 Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual. The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service Manual Copyright ⓒ...

  • Page 2: Table Of Contents

    3.8.5 Audio Ear mic jack 3.9 Checking LCD Block 3.10 Checking Touch Block 3.11 Checking Compass sensor Block 3.12 Checking Accel sensor Block 3.13 Checking Proximity sensor Block Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. 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

    2500 – 2570 2620 – 2690 LTE8 880 – 915 925 – 960 LTE20 832 – 862 791 – 821 LTE38 2570 – 2620 2570 – 2620 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 5: Hw Features

    16:9(9.7MP – 4160x2340), 16:9(4.9MP – 2944x1656) Image Scaling Down FullVision(8.0MP – 4160x1920), FullVision(4.0MP – 2944x1360) 1:1(9.7MP – 3120x3120), 1:1(3.4MP – 1840x1840) Format Image : JPG, Video : MP4 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 6 0 m ~ 10 m (depend on environment) 12. WLAN Standard IEEE 802.11 b/g/n Depend on environment 0 ~ 50m (depend on environment) 13. GPS type A-GPS, GLONASS 14. NFC Chipset PN553,NXP Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 7: Rssi Display

    11 mA under(LTE 2.56S) 13 mA under(LTE 2.56s) 350mA(@TX 10 dBm) LCD off VoLTE 11 mA under(LTE 2.56S) 13 mA under(LTE 2.56s) 400mA(@TX 10 dBm) LCD off Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 8: Battery Bar

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

  • Page 9: Sw Specification

    There is no limitation on the number of items. Group It depends on available memory amount. Fixed Dial Number Service Dial Number It depends on operator requirements. Own Number My Profile (add/edit/delete are supported) Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 10 CB app supports Cell Broadcast message Download Over the Web Game Calendar There is no limitation on the number of items. Memo It depends on available memory amount. World Clock Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 11 GPRS Class 12 EDGE Class 12 Hold / Retrieve Conference Call Max. 6 DTMF Memo pad SyncML Hangout was IM, but it's not preloaded anymore. Email Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 12: Trouble Shooting

    Replace U4000 and then check TP1 XO Circuit is OK. Is it 26MHz? Check next step Circuit Diagram R4031 The Problem may be Logic part Refer to Logic trouble shoot Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 13: Checking Transceiver Dc Power Supply Circuit Block

    Check TP2 The Problem may be Logic part. +1.8V_RF is OK? Refer to Logic trouble shoot TP1(1.2V) Check next step Image TP1(1.2V) C4038 TP2(1.8V) U4000 C4000 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 14: Checking Dc-Dc Block

    Checking Flow START TP1(VSYS) C4120 Check TP1(VSYS) Check U4103 0.5V ≤ TP1 ≤ 4.2V ? Physical Damage or soldering condition Check next step Image TP1(VSYS) C4120 U4103 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 15: Asm Block

    Refer to Logic trouble shoot (1.65V≤TP2 ≤2.0V) Circuit Diagram GOOD TP1(3.5V) Check U4211 physical Damage or soldering Replace U4211 C4238 condition TP1(3.5V) C4238 Check Next step TP2(1.8V) C4242 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 16: Gsm, Wcdma, Lte Part

    Replace U4000 or soldering condition TP2(B2/G1900 PRx) C4230 TP3(B3/G1800 PRx) Check next step L4268 TP1(B1 PRx) Circuit Diagram C4275 B2/G1900 TP2(B2/G1900 PRx) L4268 B3/G1800 TP3(B3/G1800 PRx) C4230 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 17: Gsm, Wcdma, Lte Part - Prx

    TP3(B7 PRx) C4285 TP1(B5/G850 PRx) L4231 Check next step TP4(B20 PRx) C4243 Circuit Diagram TP5(B38 PRx) B5/G850 C4176 B8/G900 TP1 (B5/G850 PRx) L4231 TP2(B8/G900 PRx) C4266 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 18 3.5.1 GSM, WCDMA, LTE PART(LB/HB) - PRx Checking Rx signal path (GSM850/900, WCDMA B5/B8, LTE B7/B8/B20/B38) TP4(B20 PRx) C4243 TP3 (B7 PRx) C4285 TP5(B38 PRx) C4176 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 19: Wcdma, Lte Part - Tx

    C4126 If WCDMA/LTE of All band Replace U6701 Over 0dBm? NOT GOOD Check Transceiver physical damage Replace U6701 or soldering condition U4000 (MT6177) Check next step Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 20 3.5.2 WCDMA, LTE PART - Tx Circuit Diagram MMPA Input TP2(LB_input Tx) C4146 LB_input Tx MB_input Tx TP3(MB_input Tx) C4116 TP1(VBAT) C4119 TP4(HB_input TX) HB_input Tx C4174 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 21 3.5.2 WCDMA, LTE PART - Tx MMPA Output Circuit Diagram B1 Tx TP5(B1 Tx) C4122 TP6(B3 Tx) B3 Tx C4126 TP7(B2 Tx) B2 Tx C4128 B38 Tx TP8(B38 Tx) C4105 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 22 3.5.2 WCDMA, LTE PART - Tx MMPA Output Circuit Diagram TP9(B7 Tx) B7 Tx C4101 B20 Tx TP10(B20 Tx) L4101 B8 Tx TP11(B8 Tx) L4121 TP12(B5 Tx) L4100 B5 Tx Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 23: Gsm Part - Tx

    Over 0dBm? TP1(1.2V) C4238 TP4(LB_input Tx) (MB_input Tx) C4211 NOT GOOD C4239 Check Transceiver physical damage Replace U4211 or soldering condition Check next step U4000 (MT6177) Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 24 3.5 GSM, WCDMA, LTE PART Circuit Diagram 3.5.3 GSM PART - Tx TP1(1.2V) C4238 TP2(1.8V) C4242 MB_input Tx TP3(MB_input Tx) C4239 GSM Input TP4(LB_input Tx) C4211 LB_input Tx Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 25 3. TROUBLE SHOOTING 3.5 WCDMA, LTE PART 3.5.3 GSM PART - Tx Circuit Diagram GSM Output GSM850/900 Tx TP5(GSM LB Tx) L4236 GSM1800/1900 Tx TP6(GSM MBTx) C4223 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 26: Gsm,Wcdma, Lte Part - Drx

    TP3/4/5/6/7/8 Signal exist? ASM or Switch Block TP1(VDD) TP2(VIO) NOT GOOD Circuit Diagram C4311 Check C4313 Transceiver physical damage Replace U4000 or soldering condition Check Next step Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 27 (GSM850/900/1800/1900 WCDMA B1/B2/B5/B8 LTE B1/B3/B8/B20) B1 DRX TP6(WB1/LTE B1 DRx) C4342 TP3(G850/WB5 DRx) C4354 TP7(G1800/LTE B3 DRx) L4306 TP4(G900/WB8/LTE B8 DRx) C4370 TP8(G1900/WB2 DRx) B20 DRX L4309 TP5(B20 DRx) C4320 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 28 RF signal path and TP3/4 Signal exist? ASM or Switch Block NOT GOOD Check Transceiver physical damage Replace U4000 or soldering condition Check Next step Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 29 3.5 GSM, WCDMA, LTE PART 3.5.4.2 GSM,WCDMA, LTE PART - DRX Checking DRX RF signal path (LTE B7/B38) Circuit Diagram TP3(B38 DRx) R4330 TP1(VDD) R4310 TP2(VIO) C4308 TP4(B7 DRx) R4332 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 30: Power

    MT6357 IO Voltage level? (Check MT6357) X1800(TP3) Check Main Clock level ? (Check MT6357) (X1800) TP2(L1604) Check Change MT6357 Battery connector(J2100) And Return to Start Core DC/DC Inductor(L1600,L1601, L1602) Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 31 3.6 Power Checking Power signal (Battery connector, Power Key, PMIC Regulator) BATTERY CONNECTOR(J2100) PWR KEY(TP3204) 26M Main Clock Out (X1800) IO DC/DC Inductor(L1604) Core DC/DC INDUCTOR(L1600,L1601,L1602) Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 32: Charger

    Change TA (or USB Cable) voltage 5V Is it charging properly After turning on? I/O connector(J3000) Change the Charging IC ( U2000 ) Change the Main PCB Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 33: Audio Receiver

    Hear the Voice through the RCV? Contact pad (ANT2600. ANT2601) Check a RCV and RCV FPCB appearance, is it OK? Circuit Diagram Change RCV and FPCB Change Main Board Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 34: Audio Speaker

    Hear the Voice through the SPK? Placement Contact pin (ANT2701, ANT2702) Check a SPK, SPK Pin and SPK FPCB appearance, is it OK? Circuit Diagram Change SPK Module Change Main Board Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 35: Audio Main Mic

    Hear the Voice through the RCV in loopback test ? Circuit Diagram Main Mic 1. Change a Front (U2601) 2. Change a Main MIC Change Main Board Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 36: Audio Sub Mic

    Hear the Voice through the SPK in loopback test ? Circuit Diagram 1. Change a Front 2. Change a Sub MIC Sub Mic (U2600) Change Main Board Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 37: Audio Ear Mic Jack

    Top Side Check the Headset Icon And reconnect Earphone plug Hear the Voice through the Headset? Earjack (J2500) Circuit Diagram Change Earjack Connector Change Main Board Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 38: Checking Lcd Block

    (J2800), and check the connector LCD Connector OK? TP1(C2803) TP4(R2805) TP2(C2801) TP3(C2802) LCD Display OK? TP1~4 is OK? Change the LCD module Change the main board LCD Display OK? Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 39 3. TROUBLE SHOOTING 3.9 Checking LCD Block Main LCD control signals are generated by MT6762 Circuit Diagram (C2803) (R2805) (C2802) (C2801) Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 40: Checking Touch Block

    TP2(C2801) TP1, TP2, TP3, OK? Touch Reset (TP4) & Touch I2C (TP5,6) OK? Change Change LCD Module ? the Main Board Does it works? TP6(D2813) TP3(C2802) Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 41 3. TROUBLE SHOOTING 3.10 Checking Touch Block Touch Parts on the main board Touch control signals are generated by MT6762 Circuit Diagram TP3(C2802) TP6(D2813) TP5(D2813) TP4(R2818) TP1(D2820) TP2(C2801) Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 42: Checking Compass Sensor Block

    Check the sensor function Calibration OK? Check input voltage(C3304) C3304 Change the Sensor IC(U3301) Circuit Diagram Function is OK? Change the main board Function is OK? Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 43 Check the sensor function U3302 Function is OK? Calibration OK? Change the Sensor IC(U3302) Function is OK? Circuit Diagram Change the main board Function is OK? Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 44: Checking Proximity Sensor Block

    Power (R3303) Object moved at the Proximity sensor LCD off? Check power (R3303) Circuit Diagram Output work well? Change the main board Power (R3303) Function is OK? Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 45: Checking Main Camera Block

    TP5 is OK? TP4 : 2.8V (C2904) Replace Camera Module Camera is OK? Replace Main PCB TP1 : 2.8V (C2905) J2900 TP3: 1.1V (C2906) TP2 : 1.8V (C2908) Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 46 TP4 is OK? TP1 : 2.8V Replace Camera Module (C2958) Camera is OK? Replace Main PCB J2903 TP3: 1.2V (C2968) TP4 : MCLK (C2961) TP2 : 1.8V (C2957) Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 47: Checking Front Camera Block

    TP2: 1.8V TP3: 1.05V (C2915) Check MCLK TP4 is OK? (C2910) Replace Camera Module TP3: 1.05V Camera is OK? Replace Main PCB (C2914) TP1: 2.8V (C2913) Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 48: Checking Motor Block

    Motor Contact (ANT3208, ANT3209) is normal? Contact pad (ANT3208. ANT3209) Check R3204 Motor Driver IC (VIBR_PMU) & Main PCB power VPWR(TP1)? Circuit Diagram R3204 (VIBR_PMU) Replace Motor Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 49: Checking Bt/Wifi Block

    Check the components around Signal exist? X1800(CLK) and change. Check the components around MT6631 Check MT6631 physical damage and change. or soldering condition. Change the Main PCB R5109 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 50 3. TROUBLE SHOOTING 3.17 Checking BT/WiFi block Circuit Diagram C5105 J5100 U5100 R5109 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 51: Checking Gps Block

    Voltage level at TP5(C5124) is +2.8V ? Check the components around Check U5102 physical damage U5102(MT6631), or replace it or soldering condition. Change the Main PCB Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 52 3. TROUBLE SHOOTING 3.18 Checking GPS block Circuit Diagram J5100 U5101 C5116 C5124 C6204 U5103 U5106 C5120 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 53 Signal of TP1 around X5000 or Is it 27.12MHZ ? Replace Crystal(X5000) Voltage of TP2 ANT5001/ Check or Replace U5001 Is it +1.8V ? ANT5002 Change Main Board. Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 54 3. TROUBLE SHOOTING 3.19 Checking NFC block Circuit Diagram X`tal X5000 NFC IC C5030 U5001 C5019 ANTENNA C-Clip ANT5001, ANT5002 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 55: Block Diagram

    4.BLOCK DIAGRAM BLOCK DIAGRAM Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 56 MSDC1 Debug Debug LCM’s BL FLASH UART SPI Pin-MUX Flash WLED BST port port JTAG VSYS 3,500mAh VSYS Charger/ SW Li-ion USB2.0 USB 1.2A USB 2.0 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 57 DRX8 (B3) B28_DRX DRX6 (B28) SP8T B2_DRX (SW4300) DRX7 (B2) B5_DRX ANT#4 DRX4 (B5) B7/B38 B8_DRX DRX1 (B8) B20_DRX DRX2 (B20) B7/B38_DRX DRX13(B7/B38) SPDT SPDT TX_FBRX Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 58: Main Chipset

    2in1 SD_EINT GPIO_80 INT_SIM1 INT_SIM1 VCC1 SIM1_SRST SIM1_SRST SIM1_RST1 VPP1 SIM1_SCLK SIM1_SCLK SIM1_CLK1 SIM1_SIO SIM1_SIO SIM1_I/O1 SIM2_SRST SIM2 SIM2_SRST SIM2_RST1 SIM2_SCLK SIM2_SCLK SIM2_CLK1 SIM2_SIO SIM2_SIO SIM2_I/O1 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 59: Lge Internal Use Only

    BT_IP BT_IP GPS Filter GPS LNA BT_IN BT_IN BT_QP BT_QP BT_QN BT_QN GPS_I GPS_IP GPS_Q GPS_QP Ear-jack ANT FM_LANT_P WLAN_XO_IN PMIC MT6357 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only training and service purposes...
  • Page 60 NFC_RX_P/N HIF4 SCL3 NFC_IRQ EINT10 NFC_DWL_REQ SIM1_SIO DWL_REQ PWM0 SIM_IO_PULLDOWN_1 SIM_SWIO SIM_SWIO_1 NFC_SIMVDD1 VDD_SIM_1 VSIM1_PMU VDD_SIM_PMU_1 VSIM1 NFC_CLK_XTAL1 VI018_PMU VDD_PAD VIO18 XTAL2 27.12MHz NFC (PN553) MT6357 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 61 AUD_DAT_MOSI1 MIC_BIAS_0 AU_MICBIAS0 MIC_IN0_N AU_VIN0_N AUD_SYNC_MOSI AUD_SYNC_MOSI MIC_IN0_P AU_VIN0_P SUB_MIC MIC_BIAS_0 MIC_IN2_N AU_VIN2_N MT6762 AU_VIN2_P MIC_IN2_P Ear-jack AU_REFN AU_HPR R_AUDIO AU_HPL L_AUDIO HP_EINT S/W_DETECT AU_VIN1_P (EAR_MIC_JCK_OUT) Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 62 GPIO_162 COMMON_I2C_SDA6 +5V8_LCM_AVDD COMMON_I2C_SCL6 GPIO_161 Bias Driver -5V8_LCM_AVEE LCD_BIASN_EN GPIO_14 LCD_BIASP_EN GPIO_16 LCD_MIPI_DATA[0:3]_P MIPI_DSI0_LN[0:3]_P LCD_MIPI_DATA[0:3]_N MIPI_DSI0_LN[0:3]_N LCD_MIPI_CLK_P MIPI_DSI0_CLK_P LCD_MIPI_CLK_N MIPI_DSI0_CLK_N LCD_MAKER_ID0 GPIO_163 LCD_MAKER_ID1 GPIO_172 LCD_RESET_N GPIO_45 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 63 MIPI CSI Line(2) RDP(N) / RCP(N) VCAMA_PMU I2C_4 VCAMA SUB REAR SCL4 / SDA4 2.8V MT6351 (GPIO105/106) CAMERA 5M (PMIC) MCAM_MCLK3 VCAMD_Sub_CAM_LDO GPIO88/CAM_CLK3 LDO 1.2V MCAM3_RST GPIO87/CAM_RST3 FLASH_LED Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 64 MT6357 SPI4_MO G-sensor EINT6 SPI4_CLK EINT7 VSYS VIBR_PMU MT6762 SPI0_MI SPI0_CSB Finger Print SPI0_MO SPI0_CLK Motor SDA1 SCL1 E-compass Proximity+ALS EINT_ALS EINT9 SAR Sensor CAP_SENSOR_INT GPIO_15 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 65 Camera ALDO AUXADC VRF12(1.2V) VAUX18(1.8V) MT6177/M/RF/TRX AUDIO VAUD28(2.8V) VSRAM_OTHERS(0.6-1.3V) SRAM_GPU,SRAM_CORE,SRAM_MD VCAMA(2.8V) CAMERA VDRAM LPDDR3 TREF(1.8V) BAT NTC VPROC_PROC SRAM_PROC VCN28(2.8V) MT6631 VXO22(2.24V) RF,DCXO VFE28(2.8V) RFFE XTAL_26M_IN Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 66: Red Indicator

    10. Charger / DSV MT6371 LCM_AVEE LCM_AVDD DISPLAY LCM_LEDA BL_VOUT LCM_LEDK_1 BL_LED1 LCM_LEDK_2 BL_LED2 MT6762 YSYS FLASH(CAM) FLASH_LED1 CHG_VLX FL_LEDCS1 Red indicator RGB_ISINK4 VBUS_USB_IN_PM VBAT BATTERY CHG_VIN VBAT Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 67: Bga Pin Map

    5. BGA PIN MAP U1200_MT6762_IC, Digital Baseband Processor U2400_H9TQ27ABJTMCUR-KUM_IC, MCP.eMMC U1600_MT6357_IC, PMIC Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 68: Pcb Layout

    6. PCB LAYOUT LMX430EMW- MAIN_TOP & BOT BOT-1 TOP-1 BOT-2 TOP-2 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 69 U2400 - Memory No Power on U1200 – AP MT6762 No Power on Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only training and service purposes...
  • Page 70 SIM1 or SD Can’t Read J2500 – Earjack Socket J3000 – USB Port No USB Earjack malfunction Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only training and service purposes...
  • Page 71 ART FILM - Assembly_Top ART FILM - Assembly_Top...
  • Page 72 J2900 – 2M CAM Con. J2903 – Main CAM Con. No Camera No Camera (Main) U1600 – PMIC NO power on J2801 – Finger Print Con. No Finger Print Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 73 No LCD No Display/ Touch U2601 – Main MIC No Main MIC Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. LGE Internal Use Only Only training and service purposes Only training and service purposes...
  • Page 74 ART FILM - Assembly_Bottom ART FILM - Assembly_Bottom...

  • Page 75: Memory Variation

    B(PP1) Revision 1.0(PP2) P/N: EAN65980601 P/N: EAN64213503 Memory RAM Size: 2GB RAM Size: 3GB ROM Size: 32GB ROM Size: 32GB Applied LMX430EMW,LMX430FMW, LMX430ZMW, LMX430BMW Models LMX430ZM,LMX430HM Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 76: Hidden Menu

     All Test Items are continued  Each test item can be selected and one after another. performed by user.  Continuous information on the menu, giving you ability test. Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 77 2. Key Press Test 3. Display Check Test (1) 4. Display Check Test (2) 5. Ring Test 6. Vibrator Test 7. NFC Test 8. Motion Sensor Test Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 78 10. GPS/BT/WiFi Test 11. Touch Draw Test 12. Camera Test (Main) 15. Camcorder Test 13. Camera Test (Main Wide) 14. PDAF Test 16. Camera Test (VT) OTG Test Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 79 8. HIDDEN MENU 17. LED Test 18. OTG Test 19. FingerPrint Test Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 80: Download

    Micro 5P (56-open-910K) USB DLC RAD32167835 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 rights reserved. Only training and service purposes...

  • Page 81: Calibration

    CMW 500 RF Cable connection 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 rights reserved. Only training and service purposes...

  • Page 82: Disassemble Guide

    From the bottom left of the rear cover, disassemble direction of red arrows. 5. Disassemble Connector (2ea) 6. Disassemble HW Parts (2ea) 7. Complete Disassembling and Main PCB Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 83 12.2 Battery Disassemble Guide 1. . Leave Bar Assy 2. Disassemble Battery in freezing chamber (-20º, 20min) Put “Hera” into the bottom side of battery and disassemble Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 84 Push finger print sensor until the other side of the FPS peel off a little. Then disassemble it from the rear cover 지문센서쪽을 누른 후 반대쪽이 살짝 들리도록 한다. 그 부위를 이용하여 리어커버에서 살짝 들어올려 분리한다. Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 85 Put the finger print sensor on the FPS guide of rear cover. Compress after assemble by hand. 지문센서의 외곽과 리어커버의 외곽 가이드의 위치를 맞춰 조립한다. 조립 후 손으로 압박 한다. Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 86 ② 열린 Rear Cover의 틈을 벌려 하단 Rear Cover를 분리 한다. ③ 커버를 위로 들어 올린 후 지문키 FPCB의 커넥터를 헤라를 사용하여 분리 한다. ① ② ③ Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 87: Exploded View

    RCV00 MBK07 MBK03 MBK06 EAB00 EAU00 MBK02 EBP01 EBR04 EBP02 EAC00 BAT00 MBK05 MBK00 MBK08 MBK09 MBK01 EAB01 ACQ01 FAB00 EBD00 MHK10 ACQ010 MJN10 MKC00 WIN00 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

  • Page 88: Replacement Part List

    Damper MCQ000002 MDJ66085301 Filter MDJ000001 MDJ66164801 Filter MDJ000002 MDJ66185101 Filter MDJ000000 MDS67390401 Gasket MDS000000 MGJ66912301 Plate MGJ000000 MHK67391101 Sheet MHK000000 MJN71577701 Tape MJN000000 MJN71673801 Tape,Window MJN089300 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 89 Main Camera Module EBP000002 EBR30160701 PCB Assembly,Main,Auto EBR071400 EBR30083801 PCB Assembly,Main,Insert EBR071500 EAD65826801 Cable,FFC EAD030000 MBL68499501 Cap,Earphone Jack MBL025200 MBL68499601 MBL000000 MCQ70609901 Damper MCQ000000 MCQ70766101 Damper MCQ000001 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 90 Capacitor,Ceramic,Chip C2305,C2710 115 EAE66203701 Capacitor,Ceramic,Chip C2722,C2727 116 EAE66204701 Capacitor,Ceramic,Chip D2801 117 EAG66490901 Socket,Card J3101 118 EAG66510901 Jack,Phone J2500 119 EAG66511301 Socket,Card J3100 120 EAG66710501 Connector,BtoB J3000 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 91 Resistor,Chip R1322,R1323,R1325,R1328,R2201,R2820,R2841,R2842,R2904,R2905,R2928,R3208,R3303,R4536,R4545,R4546 155 EBC64155613 Resistor,Chip R1501 156 EBC64155622 Resistor,Chip R2400,R2401 157 EBC64155623 Resistor,Chip R1305,R1307,R1310,R1311,R1312,R1317,R1319,R1321,R2205,R2206,R2705,R2910,R2913,R2914,R3305 158 EBC64155625 Resistor,Chip R2000 159 EBC64155627 Resistor,Chip R1302,R1303,R2106,R2306,R3003,R3112,R3117,R3201,R3202,R3203,R3206,R3401,R3402,R3403,R3404,R3405 160 EBC64155628 Resistor,Chip R4541 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 92 195 EAE64621619 Capacitor,Ceramic,Chip C1042,C1043,C1045,C1046,C1106,C1720,C1800,C1811,C2400,C2612 196 EAE64621621 Capacitor,Ceramic,Chip C4100,C4119,C4133,C4158,C4242,C4311,C4313,C5024,C5027 197 EAE64621622 Capacitor,Ceramic,Chip C2546,C5113,C5118 C1003,C1004,C1005,C1006,C1007,C1008,C1010,C1012,C1017,C1019,C1021,C1023,C1025,C1027,C1028,C1029,C1040,C1047,C1048,C1050,C1 198 EAE64621624 Capacitor,Ceramic,Chip 051,C1053,C1054,C1056,C1704,C1705,C1710,C1711,C1712,C1713,C1714,C1715,C1716,C1717,C1725,C1810,C1900,C1901,C1902,C2510,C251 1,C2803,C2804,C5007,C5019,C5121,C5126,C5127 199 EAE64621625 Capacitor,Ceramic,Chip C5018 200 EAE64621626 Capacitor,Ceramic,Chip C3002,C3003,C4114,C4157,C4202,C4278,C4284,C4310,C4321,C4377,C4397,C5000,C5001,C5124 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 93 Connector,BtoB J2900 235 EAG66710601 Connector,BtoB J2800 236 EAH63632611 Diode,TVS D2101 237 EAH63973101 Diode,TVS D2504,D3001 238 EAH64793701 Diode,TVS D2100 239 EAH64793901 Diode,TVS D3002,D3003 240 EAH64838101 Diode,TVS D3004 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 94 IC,RF Transceiver,4G U4000 276 EAN66007501 IC,RF Amplifier LNA4207,LNA4307,U4104 277 EAN66008101 IC,LDO Voltage Regulator U2800 278 EAN66008301 IC,PMIC U1600 279 EAN66008602 IC,NFC U5001 280 EAN66028201 IC,RF Amplifier LNA4201 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 95 Inductor,Multilayer,Chip C4213,L4303 315 EAP65026401 Inductor,Multilayer,Chip C4102,L4106 316 EAP65026701 Inductor,Multilayer,Chip L4120,L4265,R5100 317 EAP65026901 Inductor,Multilayer,Chip L5002,L5003 318 EAP65226601 Inductor,Multilayer,Chip C4298 319 EAP65226701 Inductor,Multilayer,Chip C4259 320 EAW64043801 Oscillator,TCXO X1800 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 96 ANT4502,ANT4504,ANT4506,ANT4508,ANT4509,ANT4510,ANT4511,ANT4512,ANT4513,ANT4515 354 MBV64602601 Clip ANT2901,ANT2902 355 MEZ65049701 Label MEZ000000 356 RAA34548901 Resin,PC RAA100800 357 MDS67355201 Gasket MDS000000 FAB010001,FAB010002,FAB010003,FAB010004,FAB010005,FAB010006,FAB010007,FAB010008,FAB010009,FAB010010,FAB010011,FAB010012,FAB010013,F 358 FAB34739301 Screw,Machine AB010014,FAB010015,FAB010016,FAB010017,FAB010018,FAB010019,FAB010020 359 MEZ66675330 Label MEZ000000 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...
  • Page 97 389 MAY69428603 Box,Unit MAY084002 390 MEZ65773066 Label,Unit Box MEZ084100 391 MEZ67772201 Label,Sealing MEZ067500 392 MFZ66435093 Packing,Blister MFZ005501 393 MHK66230303 Sheet MHK000000 394 MLAJ0004402 Label,Master Box MEZ047200 Copyright ⓒ 2019 LG Electronics. Inc. All rights reserved. Only training and service purposes...

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