LG -H422 Service Manual
  1. Manuals
  2. Brands
  3. LG Manuals
  4. Cell Phone
  5. LG-H422
  6. Service manual

LG -H422 Service Manual

Hide thumbs Also See for LG-H422:
Table of Contents

Advertisement

Quick Links

Download this manual
Internal Use Only
Service Manual
LG-H422
Date: Apr, 2015 / Issue 1.0
Date: MM ,YYYY / ISSUE X.X

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the LG-H422 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for LG LG-H422

Summary of Contents for LG LG-H422

  • Page 1 Internal Use Only Service Manual LG-H422 Date: Apr, 2015 / Issue 1.0 Date: MM ,YYYY / ISSUE X.X...

  • Page 2: Table Of Contents

    4. BLOCK DIAGRAM…..........64 5. CIRCUIT DIAGRAM..........75 6. BGA PIN MAP............95 7. PCB LAYOUT…........... 96 8. HIDDEN MENU..........101 9. DOWNLOAD…........... 104 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 3: Performance

    EGSM 824 – 849 869 – 894 GSM850 1710 – 1785 1805 – 1880 DCS1800 1850 – 1910 1930 – 1990 PCS1900 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 4: Hw Features

    : 30 dBm Class1 (PCS) GPRS compatibility GPRS Class 12 EDGE compatibility EDGE Class 12 Downlink(Rx) Only Plug-In SIM SIM card type 3V /1.8V Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 5 30fps 720p (Wi-Fi display) Camcorder MPEG4/8 Voice Recording Speaker Phone mode Support Travel Adapter In-box item CDROM Stereo Headset Data Cable In-box item T-Flash(External Memory) Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 6: Rssi Display

    (Sleep & Idle Avg.) Under 550mA Under 280 mA @ Max Power Avg. Talk current @GSM Level 5 Under 230 mA @ Tx -10dBm Avg. Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 7: Battery Bar

    Bar 11 -> Bar 10 53% -> 52% Low battery pop-up 15% , 5%, 0% Bar 10 -> Bar 9 48% -> 47% Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 8: Sw Specification

    There is no limitation on the number of items. SMS (EMS) EMS does not support. It depends on available memory amo unt. SMS Over GPRS Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 9 Ver. 4.1 FM radio GPRS Class 12 EDGE Class 12(Rx only) Hold / Retrieve Conference Call Max. 6 DTMF Google Hangout Email Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 10: Trouble Shooting

    3. TROUBLE SHOOTING 3.1 WCDMA Rx Part WCDMA B1/B5/B8 Rx Checking Flow Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 11 3. TROUBLE SHOOTING 3.1 WCDMA Rx Part Checking DC Power supply circuit Checking Flow Circuit Diagram Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 12 3. TROUBLE SHOOTING 3.1 WCDMA Rx Part Checking MT6166 XO circuit Checking Flow Image Waveform Circuit Diagram Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 13 3. TROUBLE SHOOTING 3.1 WCDMA Rx Part Checking RF signal path (FEM) Checking Flow Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 14 3. TROUBLE SHOOTING 3.1 WCDMA Rx Part Checking RF signal path (FEM) Circuit Diagram Image TP2(B5) Waveform TP2(B8) TP2(B1) Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 15 3. TROUBLE SHOOTING 3.1 WCDMA Rx Part Checking RF signal path (DPX) Checking Flow Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 16 3. TROUBLE SHOOTING 3.1 WCDMA Rx Part Checking RF signal path (DPX) Circuit Diagram Image TP1(B8) Waveform TP1(B5) TP1(B1) Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 17: Wcdma Tx Part

    3. TROUBLE SHOOTING 3.2 WCDMA Tx Part WCDMA B1/B5/B8 Tx Checking Flow Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 18 3. TROUBLE SHOOTING 3.2 WCDMA Tx Part Checking DC Power supply circuit Checking Flow Circuit Diagram Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 19 3. TROUBLE SHOOTING 3.2 WCDMA Tx Part Checking MT6166 XO circuit Checking Flow Image Waveform Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 20 3. TROUBLE SHOOTING 3.2 WCDMA Tx Part Checking MT6166 XO circuit Image Circuit Diagram Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 21 3. TROUBLE SHOOTING 3.2 WCDMA Tx Part Checking B1/B5/B8 TX PA Checking Flow Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 22 3. TROUBLE SHOOTING 3.2 WCDMA Tx Part Checking B1/B5/B8 TX PA Circuit Diagram Image TP2(B8)_RFout TP3(VBAT) Waveform TP1(B5/B8)_RFIN TP2(B5)_RFout TP1(B1)_RFIN TP2(B1)_RFout Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 23 3. TROUBLE SHOOTING 3.2 WCDMA Tx Part Checking RF signal path (DPX) Checking Flow Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 24 3. TROUBLE SHOOTING 3.2 WCDMA Tx Part Checking RF signal path (DPX) Circuit Diagram Image TP1(B8) Waveform TP1(B5) TP1(B1) Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 25 3. TROUBLE SHOOTING 3.2 WCDMA Tx Part Checking RF signal path (FEM) Checking Flow Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 26 3. TROUBLE SHOOTING 3.2 WCDMA Tx Part Checking RF signal path (FEM) Circuit Diagram Image TP2(B5) Waveform TP2(B8) TP2(B1) Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 27: Gsm Rx Part

    3. TROUBLE SHOOTING 3.3 GSM Rx Part GSM850/900/DCS/PCS Rx Checking Flow Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 28 3. TROUBLE SHOOTING 3.3 GSM Rx Part Checking DC Power supply circuit Checking Flow Circuit Diagram Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 29 3. TROUBLE SHOOTING 3.3 GSM Rx Part Checking MT6166 XO circuit Checking Flow Image Waveform Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 30 3. TROUBLE SHOOTING 3.3 GSM Rx Part Checking MT6166 XO circuit Image Circuit Diagram Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 31 3. TROUBLE SHOOTING 3.3 GSM Rx Part Checking RF signal path (FEM) Checking Flow Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 32 3. TROUBLE SHOOTING 3.3 GSM Rx Part Checking RF signal path (FEM) Circuit Diagram Image TP2(DCS/PCS) Waveform TP2(GSM850/EGSM) Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 33 3. TROUBLE SHOOTING 3.3 GSM Rx Part Checking RF Flow(SAW filter) Checking Flow Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 34 3. TROUBLE SHOOTING 3.3 GSM Rx Part Checking RF signal path (FEM) Circuit Diagram Image Waveform TP1(DCS/PCS) TP1(GSM850/EGSM) Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 35: Gsm Tx Part

    3. TROUBLE SHOOTING 3.4 GSM Tx Part GSM850/900/DCS/PCS Tx Checking Flow Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 36 3. TROUBLE SHOOTING 3.4 GSM Tx Part Checking DC Power supply circuit Checking Flow Circuit Diagram Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 37 3. TROUBLE SHOOTING 3.4 GSM Tx Part Checking MT6166 XO circuit Checking Flow Image Waveform Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 38 3. TROUBLE SHOOTING 3.4 GSM Tx Part Checking MT6166 XO circuit Image Circuit Diagram Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 39 3. TROUBLE SHOOTING 3.4 GSM Tx Part Checking RF signal path (FEM) Checking Flow Image Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 40 3. TROUBLE SHOOTING 3.4 GSM Tx Part Checking RF signal path (FEM) Circuit Diagram Image Waveform TP2 (DCS/PCS) TP2 (GSM850/EGSM) Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 41: Bt/Wifi Block

    3. TROUBLE SHOOTING 3.5 BT/WIFI Block Check BT/WIFI path Checking Flow Image U5100 Main Main Circuit Diagram Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 42: Gps Block

    3. TROUBLE SHOOTING 3.6 GPS Block Check GPS path Checking Flow Main U5100 Main Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 43 3. TROUBLE SHOOTING 3.6 GPS Block Check GPS path Circuit Diagram Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 44: Fm Radio

    3. TROUBLE SHOOTING 3.7 FM RADIO Check FM radio path Checking Flow Image Main Main U5100 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 45 3. TROUBLE SHOOTING 3.7 FM RADIO Check FM radio path Circuit Diagram Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 46: Power

    Check MT6323 IO Voltage level? IO DC/DC Capacitor(C4109) Check MT6323 RTC CLOCK C4109(Check MT6323) Check Battery connector (CN9100) Change MT6323 Return to Start Core DC/DC INDUCTOR(L4130) Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 47: Charging

    (or 5.0V) (or uUSB Cable) Is it charging properly After turning on? Change the Charger IC ( U4700 ) Change the Main PCB Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 48 Change I/O connector( CN10001) Circuit Diagram Is the signal ok for Change AP( U2100 ) USB+ & - ? Change the Main Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 49: Usb

    L6700, L6701, C6700, C6701 Change Speaker ANT10003, ANT10004 Module? Circuit Diagram Check Main PCB. (L6700, L6701, C6700, C6701 ) Speaker Sound OK? Change Main Board Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 50: Audio

    R6930 RCV? Change RCV Module? Circuit Diagram Check Main PCB. (R6929, R6930 ) via Loopback mode Voice OK? Change Main Board Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 51 Mic Voice signal OK? Check FB6920, VMIC voltage level (C6920) Change MT6323(U4100). Mic works well? Check C4103, C4104 Change Main Board Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 52 Mic Voice signal OK? Check FB6921, VMIC voltage Change level (C6922) MT6323(U4100). Mic works well? Check C4111, C4112 Change Main Board Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 53 Check the left signal and detection line short when headset inserted? Circuit Diagram Yes, but still not works Change MT6323(U4100). Mic works well? Change Main Board Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 54 Change Ear Jack Connector. Sound play via headset? Check TPA6136A2YRR(U6200) and peripheral circuits Works well? Circuit Diagram Check MT6323(U4100). Works well? Change Main Board Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 55: Sensor

    Function is OK? Calibration OK? Accelerometer Change the Sensor IC & Function is OK? Compass sensor Change the main board Function is OK? Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 56 Proximity sensor LCD off? Circuit Diagram Check + +2V8_MTK_VIO (C8400) Sensor Power: C8400 Output work well? Change the main board Function is OK? Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 57: Touch

    Signal Line (TP3, TP4) TP3(ZD1600 Touch Works OK? TP4(ZD1600 Change LCM Touch Works OK? +1V8_MTK_VIO (TP1) : TP1 (C16002) Change Main Board Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 58: Vibrator

    Reconnect Connector and check Vibrator. Change MT6323 Check Power 3.00V Motor Power is OK? Change IC Vibrator Works well? Change Main Board Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 59: Camera

    MIPI DATA : TP6 Change the Camera CN7300 Pin #7,#8,#10,#11, #17, #18, #20,#21 Camera is OK ? MIPI CLK : TP5(CN730 PIN #13,#14 303) Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 60 MCLK(TP4),MIPI_CLK(TP5), Main board MIPI_DATA(TP6) Change the Camera DVDD Camera is OK ? (C7401) MIPI DATA MCLK IOVDD CN7400 PIN #9,#10 (ZD7400) (C7400) Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 61: Lcd

    And its interface is MIPI having three data lanes and one clock lane. Circuit Diagram LCD_LED_A: TP5 U4400(C4407) VCI: TP2 (ZD1600, ZD1601) MIPI_DAT A: TP3 (FL16001,F L16002) MIPI_CLK: (FL16000) VIO: TP1 (C16002) Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 62 Check LCD Power +1V8_MTK_VIO(TP1), +5V5_DVDDDH(TP2), Change the LCD Module -5V4_DVDDDL(TP2), LCD_MIPI_DATA (TP3), LCD_MIPI_CLK (TP4) LM3632(U4400) output LEDA(TP5 Change the Main Board The LCD works Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 63: Block Diagram

    MIC_IN2_N HALL_INT GPIO_10 Hall IC AUDIO_DATA_MOSI AUD_MOSI AUD_DAT_MOSI AUD_CLK AUD_CLK_MOSI AUDIO_CLK COMMON_I2C AUD_MISO AUD_DAT_MISO AK09911 K2DH APDS-9130-200 GPIO_88,89 (Compass) (Accel) (Proximity) AUDIO_DATA_MISO Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 64 OZ26000004 PDET_IN 3G_PA_LB_EN GPIO61 3G_PA_B2_EN GPIO60 PA_MODE_SEL0 GPIO72 PA_MODE_SEL1 GPIO73 GSM_PA_EN GPIO53 TX_EN GSM_PA_RAMP VRAMP ANT_SW_SEL_0 GPIO50 ANT_SW_SEL_1 GPIO51 ANT_SW_SEL_2 MODE GPIO52 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 65 MT6627 FM_Data_CLK line WB_ANT MT6582 WiFi_BT_RX_IQ 4 line WiFi_BT_TX_IQ 4 line Ant. FM Radio GPS_RX_IQ 4 line WiFi_BT_Control 6 line FM_ANT MT6166 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 66 FM_DATA F2W_DATA FM_CLK F2W_CLK MT6627 MT6323 +1V8_MTK_VCN AVDD18_WBT +1V8_MTK_VCN VCN18 AVDD18_GPS +2V8_MTK_VCN AVDD28_FM VCN28 MT6582 WLAN_CLK +3V3_MTK_VCN 26MHz AVDD33_WBT VCN33 XO_IN MT6166 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 67 VCN18 1574.40 ~ 1576.44MHz +2V8_MTK_VCN AVDD18_GPS MT6627 Filter+LNA GPS_ANT GPS_RFIN Module (SFMG2XAB002/Wisol) GPS_LNA_EN GPS_RX_Q_N GPS_RXQN GPS_RX_Q_P GPS_RXQP GPS_RX_I_N GPS_RXIN GPS_RX_I_P GPS_RXIP MT6582 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 68 Combo +3V0_MTK_USIM2 VSIM2 (50mA) Sub_SI VBAT BATTERY +1V8_MTK_VIO +1V8_MTK_VIO VIO18 JTAG 300mA /DVDD18_IO RT9536GQW +1V8_MTK_VIO +VBAT +3V0_MTK_VIBR (charger IC) Motor VIBR VBUS_USB_IN Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 69 DQS0_C~DQS3_C EBI_DQS_0~3 RDQS0~3 DQS0_T~DQS3_T VREF_LPDDR3 VREF VREFCA, VREFDQ SDCARD_DATA_0~3 MSDC1_DATA0~3 DAT0~2, CD/DAT3 SDCARD_CMD MSDC1_CMD MSDC1 SDCARD_CLK SD CARD MSDC1_CLK CLK2 SDCARD_DET EINT3 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 70 VIO28 COMMON_I2C_SCL GPIO_89 MT6323 PROXIMITY COMMON_I2C_SDA GPIO_88 SENSOR (APDS-9130-200) MT6582 LEDA LEDK HALL_INT GPIO_10 +1V8_MTK_VIO VIO18 Hall IC (BU52061NVX) +3V0_MTK_VIBR VIBR Vibrator Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 71 AU_MICBIAS1 MT6627 MT6166 MT6582 FM_ANT FM_LANT_P FM_RX_IN_N FM_LANT_N AUDIO_DATA_MOSI GPIO_28 AUD_MOSI GPIO_20 AUDIO_CLK AUD_CLK GPIO_26 26M_AUDIO_CLK CLK26M EAR_SENSE_JACK AUDIO_DATA_MISO AUD_MISO GPIO_27 GPIO_4 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 72 SUB PMIC(LM3632) LED_A BL_OUT GPIO_92 LED_C GPIO_89 BLED1 / BLED2 GPIO_88 GPIO_12 STROBE 1V8_IO +3V0_MTK_LCD_VCC GPIO_13 FLED1 / FLED2 CAMERA_Flash +1V8_MTK_IO(VIO18) MT6323 VGP2 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 73 1M Front CAM GPIO_122 CAM0_I2C_SDA 20pin GPIO_86 CAM0_I2C_SCL DVDD(1.2V) GPIO_87 VT_CAM_MIPI_CLK_N IO(1.8V) RCN_A VT_CAM_MIPI_CLK_P RCP_A AVDD(2.8V) VT_CAM_MIPI_DATA0_N RDN0_A VT_CAM_MIPI_DATA0_P RDP0_A [1M Hynix HI-191 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 74: Circuit Diagram

    5. CIRCULT DIAGRAM CIRCULT DIAGRAM Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 75 PGND4 PGND5 PGND6 PGND12 PGND11 PGND10 C1111 2G_TX_HB VBAT R1104 ANT0_SW_SEL_1 C1114 R1105 ANT0_SW_SEL_0 GSM TX_IN C1117 2G_TX_LB LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only DRAWN BY SHEET Date User Name 1-4-1-3_ANT_WCDMA_Quad_1 Drawing Date...
  • Page 76 TST1 GND7 TST2 GND8 GND_AUXADC R1514 RCAL Route AUXADC_GND with 24mil trace width TOL=0.01 RFVCO_MON under VREF_BAT_THERM / AUXADC_TSX trace LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only DRAWN BY SHEET Date User Name 1_4_2_1-RFIC_MT6166_V0_3_1...
  • Page 77 TX_MODULE_TRX1 L1621 3n L1618 L1617 2.2p GND1 GND2 GND5 L1620 GND3 GND4 L1619 0.5p EAM62571201 EAM62090901 LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only DRAWN BY SHEET Date User Name 1-4-3-4_TRX_B2_1_B5_B8_ Triple band Drawing Date...
  • Page 78 GPS_ANT FEED DNI_EAG64389801 C5123 C5110 L5106 L5118 Near MT6627 In Shield Can Area ( DGMS Guide ) MC-C00002-14 : ESD Protection Circuit LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only DRAWN BY SHEET Date User Name...
  • Page 79 C5207 VDD_ANT NFC_TX2 FEED C5215 C5214 TP5206 X5200 1ZCB26000AB0M C5224 C5250 C5223 26M_DTV_CLK C5217 C5218 To Be Deleted LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only DRAWN BY SHEET Date User Name 5-2_NFC_BCM20795 Drawing Date...
  • Page 80 XTALP C5314 X5300 C5315 1RAA19200AAA XTAL2 SENSOR GND1 XTAL1 C5313 C5318 C5310 R5311 To Be Deleted +1V8_MTK_DTV C5311 LG Electronics TITLE LGH422 LGE Internal Use Only SIZE DWG NO PDM NUMBER SHEET Date DRAWN BY User Name 5-3-1-3_ONE-SEG_MTV222 Drawing Date...
  • Page 81 AF19 should connect to C2103 GND first than connect to GND by via. +1V8_MTK_VIO CN2100 140320_Changed via MTK SYS_RESIN_N JTAG_TDI UTXD0 URXD0 JTAG_TCK UTXD1 JTAG_TMS URXD1 JTAG_TDO LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only DRAWN BY SHEET Date User Name 2-3-3-1-1_MT6582_DATA Drawing Date...
  • Page 82 AF13 LCD_MIPI_DATA2_N JTAG_TMS JTMS/GPIO_76 TDN2/GPI_164 AF12 LCD_MIPI_DATA3_P JTAG_TCK JTCK/GPIO_77 TDP3/GPI_165 AG11 LCD_MIPI_DATA3_N JTAG_TDI JTDI/GPIO_78 TDN3/GPI_166 AE12 JTDO/GPIO_79 JTAG_TDO LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only DRAWN BY SHEET Date User Name 2-3-3-1-2_MT6582_GPIO Drawing Date...
  • Page 83 +1V8_MTK_VIO AVDD18_MEMPLL pin and AVSS18_MEMPLL pin should be connected with PCB CAP first, and then connected with PMU and PCB ground. CAP should be near MT6582 as possible as we can. LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER...
  • Page 84 AC21 AD22 AG26 V17 V 18 A A18 AB19AF3 A G1 T12 M 16 K 21 M 17 H 12 J 21 H 20 H 17 H 14 V 14 H4H5J5J7L4M7M8N3 LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER...
  • Page 85 VDD2_8 VSS_18v VDD2_9 VSS_19v VDD2_10 VSS_20v VDD2_11 VSS_21v VDD2_12 VDD2_13 VDD2_14 VDD2_15 VDD2_16 VDD2_17 LG Electronics VDD2_18 TITLE LGH422 R3309 TOL=0.01 SIZE DWG NO PDM NUMBER LGE Internal Use Only KEEP CLOSE TO THE PIN DRAWN BY SHEET Date User Name...
  • Page 86 2K ohm 10% : 64mA 620 ohm : 850mA 5.6K ohm 28% : 197mA 750 ohm : 706mA 780 ohm : 680mA 820 ohm : 646mA Change to Linear Charger 14.06.24 LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only...
  • Page 87 Camera application VSYS LDO VCAM_IO Camera IO application VSYS LDO VGP3 1.2/1.3/1.5/1.8 General purpose LDO VSYS LDO VCN18 General purpose LDO LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only DRAWN BY SHEET Date User Name...
  • Page 88 R7024 +1V8_MTK_VIO [ DGMS Guide ] CAM0_I2C_SDA CAM0_I2C_SCL MC-C00060-13 : Check the pull-up resistor PAD for I2C line VT_CAM_RESET_N R7205 VT_CAM_MAKER_ID ZD7400 LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only DRAWN BY SHEET Date User Name...
  • Page 89 +3V0_MTK_LCD_VCC FL16000 LCD_LED_C LCD_MIPI_CLK_N LCD_LED_A LCD_MIPI_CLK_P +5V5_DDVDH -5V4_DDVDL FL16002 R16025 +1V8_MTK_LCD_IO LCD_MIPI_DATA1_N +1V8_MTK_VIO R16026 LCD_MIPI_DATA1_P C16002 LCD_MIPI_DATA2_N LCD_MIPI_DATA2_P LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only DRAWN BY SHEET Date User Name 7-x-x-x-x_Display_Touch Drawing Date...
  • Page 90 50pF value for ESD protection with d-class amp When USE) TVS devices's Working Voltage must be greater than the Path voltage When USE) TVS devices's Working Voltage must be greater than the Path voltage LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only...
  • Page 91 +3V0_MTK_VIBR C9910 D9910 BOTTOM SHIELD CAN CLIP Request jjongs.kim breakid.jeong 13/11/20 1203_jjongs.kim SC20002 SC20016 SC20004 SC20007 SC20010 SC20015 LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only DRAWN BY SHEET Date User Name Sensor_Motor Drawing Date...
  • Page 92 DLA_7 DLA_2 DLA_7 DLA_3 DLA_6 DLA_3 DLA_6 DLA_4 DLA_5 DLA_4 DLA_5 PID1 DAISY_CHAIN OJ9001 OJ9002 OJ9003 OJ9004 LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only DRAWN BY SHEET Date User Name Connector 19 Drawing Date...
  • Page 93 ** Note : LCM_EN1 - VNEG LCM_EN2 - VPOS C4404 R4403 +6.0V DSV_AVDD_EN LCM_EN2 LCM_OUT VPOS +5V5_DDVDH R4404 PWON_DSV_EN AGND -VNEG -5V4_DDVDL R4405 LG Electronics TITLE LGH422 SIZE DWG NO PDM NUMBER LGE Internal Use Only DRAWN BY SHEET Date User Name 4-4-7_LCD_Backlight_Flash_DSV_IC_LM3632 Drawing Date...

  • Page 94: Bga Pin Map

    6. BGA PIN MAP U2100_MT6582_LPDDR2 U4100_MT6323_PMIC O Not used O Not used U3300_eMMC O Not used Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 95: Pcb Layout

    Model name : RT9536GQW (U4700) Function : RF FEM(Front End Module) Function : Linear Charger IC - no RF - no charge Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 97 Model name : 04-5151-005-104-883(CN10001) Model name : S17OT423-001(MIC6920) Function : USB connection Function : Microphone - no charge, no USB connection - no MIC.(Voice) Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 98 - no SIM detect, no SD card Function : DSV convertor - no LCD Model name : C-Clip(ANT10003,ANT10004) Function : Speaker contact - no speaker Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 100: Hidden Menu

    : Start the desired menu, click 2. Device Test List - Service Menu - Manual test : Start the desired item, click Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 101 1. Auto Detection Item Test 3. Display check test 4. Ring test 5. Vibrator test 6. Motion Sensor test 7. Loopback test 8. GPS/BT/WIFI test Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 102 8. HIDDEN MENU 10. Camera(Main) test 9. Touch Draw test-Manual 11. Camcorder test 12. Camera(VT) test Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 103: Download

    3. USB D/L Cable setting 4. Flash tool D/L setting ※ If you want more information, please refer B2B’s Notification “Download User Guide”. Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 104: Calibration

    3. Calibration Cable setting 4. Flash tool D/L setting ※ If you want more information, please refer B2B’s Notification “RF Calibration User Guide”. Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 105: Disassemble Guide

    4. Disassemble Connector 5. Disassemble Main PCB 7. Disassemble HW parts(3ea) Take apart the Main antenna 9. Take apart the Button assy Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 106 11. DISASSEMBLE GUIDE ) 13. Complete Disassembling 10. Take apart the connector Take apart the Can shield(TOP) Take apart the Can shield(BOT Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 107: Exploded View

    EAC00 MBL01 EAB00 MJN01 ACQ01 MJN01 EBP01 MBL00 MCQ00 MBK01 FAB01 EAC00 AEX00 MBL01 FAB00 MCK00 EAB00 EBR00 ACQ00 MBK00 MJN00 EBP00 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

  • Page 108: Replacement Part List

    MET099501 MICE0016907 Insert,Nut MET099500 MCQ68207101 Damper MCQ000000 MCQ68245301 Damper,LCD MCQ043300 MCQ68265201 Damper,Speaker MCQ00 MJN69409201 Tape MJN00 MDS65130901 Gasket MDS000002 MHK64925201 Sheet MHK000000 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 109 Capacitor,Ceramic,Chip EAG64389801 C-Clip ANT10003,ANT10004,ANT1108,ANT1110,ANT5100,ANT5101,ANT5103 ECCH0005604 Capacitor,Ceramic,Chip C2300,C2301,C2313,C2314,C2315,C4141,C4142 ECZH0003103 Capacitor,Ceramic,Chip C6920,C6922 EAE62506501 Capacitor,Ceramic,Chip C4137,C4139,C4150 ERHZ0000404 Resistor,Chip R1101,R1102,R1104,R1105,R6928 EAN63646401 IC,PMIC U4400 ECCH0000198 Capacitor,Ceramic,Chip C1609,C3320,C6930 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 110 C4405,C4406 ERHZ0000486 Resistor,Chip R6601 SEVY0005201 Varistor D103,D104,D106 EAM62770301 Filter,EMI/Power FL16001,FL16002 ERHY0009507 Resistor,Chip R1117 ECZH0004402 Capacitor,Ceramic,Chip C3304 EAE62767801 Capacitor,Ceramic,Chip C4146 ECCH0000182 Capacitor,Ceramic,Chip C4105,C4106,C9518 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 111 Inductor,Multilayer,Chip L1100,L1107 EBR80493501 PCB Assembly,Main,SMT Top EBR071700 EAX66384401 PCB,Main EAX010000 ECZH0000830 Capacitor,Ceramic,Chip C1111,C1117,C1600,C1606,C5109,C6810,C6811,C6812,C6928,C6929,L1610,L1615 ERHZ0000401 Resistor,Chip R1505,R1506,R2101,R6609,R6611,R6929,R6930,R6932,R6933 ECCH0000198 Capacitor,Ceramic,Chip C1609,C3320,C6930 ELCH0003820 Inductor,Multilayer,Chip L1621 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 112 Inductor,Multilayer,Chip L5108 ELCH0004720 Inductor,Multilayer,Chip L5112 ERHZ0000487 Resistor,Chip R6600 EAW62283501 Crystal X1500 EAN63106301 IC,RF Amplifier FL5100 ELCH0003838 Inductor,Multilayer,Chip L5104 EAT61914601 Module,Tx Module U1100 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 113 ELCH0012508 Inductor,Multilayer,Chip L1501 ELCH0003824 Inductor,Multilayer,Chip L1630 SAFP0000401 Wire Pad,Short R1507,R1509,R1512,R5310 ERHZ0000291 Resistor,Chip R1607 ERHZ0000529 Resistor,Chip R6926 ELCH0003834 Inductor,Multilayer,Chip L1628 ERHZ0000294 Resistor,Chip R2102 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...
  • Page 114 EAC62798201 Rechargeable Battery,Lithium Ion EAC00 EAB62209304 Earphone,Stereo EAB010200 AFN77132701 Manual Assembly,Operation AFN053800 MBM65097101 Card,Quick Reference MBM062600 MBM64995932 Card,Warranty MBM087200 EAD62377902 Cable,Assembly EAD010000 Copyright ⓒ 2014 LG Electronics. Inc. All right LGE Internal Use Only reserved. Only training and service purposes...

Table of Contents