Page 1 Internal Use Only Service Manual LG-E475F Date: August, 2013 / Issue 0.9...
Page 2: Table Of Contents
3.16 DC Motor Trouble Shooting ............73 3.17 SIM detect Trouble Shooting ............75 3.18 Audio Troble ..................80 LGE Internal Use Only - 2 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 4 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only - 4 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 5: Performance
RF Chip RTR6285A : Qualcomm RF Chip RTR6285A : Qualcomm LGE Internal Use Only - 5 - Copyright © 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes LGE Internal Use Only...
Page 6: Hw Features
E2 (PCS) E2 (DCS) Main LCD Display QVGA Main LCD(3.0 inch, 320 x 240 ) LGE Internal Use Only - 6 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 7 CDROM Stereo Headset Data Cable T-Flash Yes ( Up to 32GB ) (External Memory) LGE Internal Use Only - 7 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 8 Li-ion Battery Pack, 1540 mAh Standard Voltage : 3.7 V, Battery Full Charge Voltage : 4.1V ~ 4.2V LGE Internal Use Only - 8 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 9 Pop-up (No call) BAR 10 -> 9 48%  47% POWER OFF Below 1% LGE Internal Use Only - 9 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 10 Pop-up (No call) BAR 10 -> 9 48%  47% POWER OFF Below 1% LGE Internal Use Only LGE Internal Use Only - 10 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 11: Sw Features
Last Missed Number Numbers and Last Missed Numbers can store up to a total of 500. LGE Internal Use Only - 11 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 12 Send / Receive / Save Long Message MAX 2000 characters Cell Broadcast Download Over the Web Game LGE Internal Use Only - 12 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 13 Ver. 3.0 FM radio GPRS Class 12 EDGE Class 12 Rx only Hold / Retrieve LGE Internal Use Only - 13 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 14 2. PERFORMANCE Conference Call Max. 6 DTMF Memo pad SyncML Email LGE Internal Use Only - 14 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 15: Hw Spec
AM Suppression GSM : -31dBm -98dBm/-96dBm (2.439%) DCS : -29dBm Timing Advance ± 0.5T LGE Internal Use Only - 15 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 16 < 17.5 %, when Pout ≥ -20 dBm Peak Code Domain Error < -15 dB at Pout ≥ -20 dBm LGE Internal Use Only - 16 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 17 Inner Loop Power Control -0.5/+0.5 -0.5/+0.5 -0.5/+0.5 In Uplink -0.5/-1.5 -1/-3 -1.5/-4 group(10equal command group) +8/+12 +16/+24 LGE Internal Use Only - 17 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 18 > 43 dB @ ±10 MHz Error Vector Magnitude < 17.5 %, when Pout ≥ -20 dBm LGE Internal Use Only - 18 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 19 Rejection interference input signal -70dBm@fc±25MHz(11Mbps) Rejection interference input signal -70dBm@fc±25MHz(11Mbps) LGE Internal Use Only - 19 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only LGE Internal Use Only...
Page 20 ※ACR shall be measured by setting the desired signal's strength 3 dB above the rate-dependent sensitivity specified in min input sensitivity LGE Internal Use Only - 20 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 21 ※ACR shall be measured by setting the desired signal's strength 3 dB above the rate-dependent sensitivity specified in min input sensitivity LGE Internal Use Only - 21 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 22 1574.42 MHz ~ 1576.42 MHz 1 satellite ≥-142dBm, 7 satellites ≥ -147dBm at coarse time Minimum Sensitivity aiding LGE Internal Use Only - 22 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 23: Trouble Shooting
WCDMA (I) TX SAW Filter X2000 VCTCXO(19.2MHz) FL1006 WCDMA (I) Duplexer SW1000 RF Antenna Connector FL1008 WCDMA (V) TX SAW Filter LGE Internal Use Only - 23 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 24: Signal Path
WCDMA I and V Band TX Signal PATH D2. WCDMA 2100 TX PATH E2. WCDMA 850 TX PATH F1. COMMON TX/RX PATH LGE Internal Use Only - 24 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 25 WCDMA I and V Band RX Signal PATH D1. WCDMA 2100 RX PATH E1. WCDMA 850 RX PATH F1. COMMON TX/RX PATH LGE Internal Use Only - 25 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 26 3. TROUBLE SHOOTING GSM850/GSM900/DCS/PCS’s RX/TX Signal PATH A. GSM850/GSM900/DCS1800/PCS1900 RX PATH B. GSM850/GSM900/DCS1800/PCS1900 TX PATH C1. COMMON TX/RX PATH LGE Internal Use Only - 26 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 27: Checking Tcxo Block
Clesed to TCXO X2000 X1G003581002700 R2003 TRK_LO_ADJ C2009 TCXO_PM_19.2MHZ 19.2MHZ C2017 TCXO_RTR_19.2MHZ Schematic of the Crystal Part (19.2MHz) LGE Internal Use Only - 27 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 28 2.4V ≥ Voltage ≥ 0.4V Check MSM7225A Check TP3 19.2 MHz Signal Check soldering and components TCXO is OK LGE Internal Use Only - 28 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 29: Checking Gsm Tx Module(Gsm Pam + Asm) Block
3. TROUBLE SHOOTING 3.4 Checking GSM TX Module(GSM PAM + ASM) Block ANT_SEL1 ANT_SEL2 TX_EN VBATT(TP1) ANT_SEL0 LGE Internal Use Only - 29 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 30 R1011 C1038 C1118 C1039 100p R1006 11dB C1201 ANT_SEL1 ANT_SEL2 C1125 C1124 Schematic of the Antenna Switch Block LGE Internal Use Only - 30 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 31 Check ANT_SEL 0,1,2,3 High Level 1.2V < Voltage < 3V Check the TP1(VBATT) Check the Logic In each mode LGE Internal Use Only - 31 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 32: Checking Wcdma Block
3. Check RF Tx Level 4. Check PAM Block Refer to 1.5.4 5. Check RF Level 6. Ro-download SW & Cal. LGE Internal Use Only - 32 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 33 Refer to 3.3 3.5.2 Checking Tx Module Block Refer to 3.4 3.5.3 Checking RF TX Level Test Point (TX Level) LGE Internal Use Only - 33 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 34 PGND1 MODE PGND2 GND9 PGND3 PGND4 PGND5 PGND6 PGND12 PGND11 PGND10 For testing, Max power output is needed. LGE Internal Use Only - 34 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 35 Check PAM Block Refer to 1.5.4 RTR6285 Maximum output Power = 7 dBm RTR6285 minimum output Power = -80 dBm LGE Internal Use Only - 35 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 36 When PAM is under the operation of high power mode (PA_R0(C1093) : Low), PAM OUT power must be over 21 dBm PAM IN power must be under 10 dBm LGE Internal Use Only - 36 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 37 RF Tx Level is OK Check TP2 PA_R0 ≥ 2.6V Check MSM7225A Check TP1 Over 10 dBm? Check RTR6285A Change the board LGE Internal Use Only - 37 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 38 3. TROUBLE SHOOTING 3.5.5 Checking RF Rx Level Test Point (RF Rx Level) Bias LGE Internal Use Only - 38 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 39 TRX3 GND7 TRX2 GND8 TRX1 VRAMP TXEN PGND1 MODE PGND2 GND9 PGND3 PGND4 PGND5 PGND6 PGND12 PGND11 PGND10 LGE Internal Use Only - 39 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 40 W2100 RX(2110 - 2170 MHz) 1.2n _OUT C1083 8.2p G1 G3 C1086 2140MHz L1024 WB2100_MIX_INM R1016 1.5n RX_WCDMA_1900_LNA_OUT LGE Internal Use Only - 40 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 41 Check TP4 Signal exist? DNI  SKIP Check TP5 Signal exist? Check RTR6285 and Rx SAW filter Change the board LGE Internal Use Only - 41 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 42: Checking Gsm Block
1. Check TCXO Block 2. Check Tx Module 3. Check RF TRX Level 4. Ro-download SW & Cal. LGE Internal Use Only - 42 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 44 3.6.1 Checking TCXO Block Refer to 3.3 3.6.2 Checking Tx module Block Refer to 3.4 3.6.3 Checking RF TX level LGE Internal Use Only - 44 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 45 C1118 C1039 100p R1006 GSM850_GSM900_TX GSM850(824-849MHz) GSM900(880-915MHz) 11dB C1201 ANT_SEL1 ANT_SEL2 C1125 C1124 Schematic of GSM/DCS/PCS Tx Block LGE Internal Use Only - 45 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 46 Refer to 4.4 No Problem Check RTR & PAD Check soldering and components Still exist Problem Change the board LGE Internal Use Only - 46 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 48 Check RF Switch (M/S) Check Tx Module Check TP2 Signal exist ? Refer to 3.4 Change the board LGE Internal Use Only - 48 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 49: Gps/Wifi/Bt Rf Component
3.7 GPS/WIFI/BT RF Component ANT1004 FL1005 U1004 GPS Component Reference Description ANT1004 Antenna Pad FL1005 GPS SAW FILTER U1004 GPS LNA LGE Internal Use Only - 49 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 50 BT/WiFi Component Reference Description ANT9001 ANTENNA PAD connected to Carrier type antenna U9000 BT module U9001 WiFi module FL9000 LGE Internal Use Only - 50 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 51: Gps/Wifi/Bt Signal Path
3. TROUBLE SHOOTING 3.8 GPS/WIFI/BT SIGNAL PATH GPS Signal PATH (main board bottom) GPS Rx PATH LGE Internal Use Only - 51 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 52 3. TROUBLE SHOOTING WIFI_Rx WIFI_Tx BT TRx WiFi / BT Signal PATH WiFi / BT Tx and Rx PATH LGE Internal Use Only - 52 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 53: Gps/Wifi/Bt Trouble Shooting
G1 G2 G3 RF_OUT L1103 C1100 L1032 L1027 C1099 L1028 L1026 GPS_IN 6.8n 100n C1113 C1114 R1023 GPS_MODE C1115 6.8p LGE Internal Use Only - 53 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 54 Check TP1 About 2.7V? Check power LRC filter soldering Check TP2 About 2.6V? Check SW and NV item Change the board LGE Internal Use Only - 54 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 55 [Figure] Schematic of WiFi/BT module START 1. Check the Power 2. Check the Clock 3. Check the Module Component Change LGE Internal Use Only - 55 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 56 C9011 C9012 BT_RF_QCT 2400MHz,2500MHz C9013 C9014 ANTENNA SWITCH MODULE LOGIC WiFi RX-ANT HIGH WiFi TX-ANT HIGH BT-ANT HIGH LGE Internal Use Only - 56 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 57 TR_SW_EN_0 WLAN_SW_[1] TR_SW_EN_1 WLAN_SW_[2] TR_SW_EN_2 WLAN_CMD SDIO_CMD SDIO_CLK REXT WLAN_CLK WLAN_SDIO[3] SDIO_DATA3 WLAN_SDIO[2] SDIO_DATA2 WLAN_SDIO[1] SDIO_DATA1 WLAN_SDIO[0] SDIO_DATA0 LGE Internal Use Only - 57 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 58 START Check the power block TP1, 2, 3 is OK? SDIO ok? Module Check UART ok? Board Change LGE Internal Use Only - 58 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 59: Power On Trouble Shooting
(VREG_P3_2.85V) (VREG_MSMA1_2.6V) (VREG_MSMA2_1.2V) (VREG_TCXO_2.85V) Is clock ok? Change the Main board TP2 (X2000) : 19.2M Redownload SW image LGE Internal Use Only - 59 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 61 3. TROUBLE SHOOTING VREG_MSMA2_1.2V VREG_P3_2.85V VREG_TCXO_2.85V VREG_MSMC1_1.1V VREG_MSMC2_1.1V VREG_MSME_1.8V VREG_MSMA1_2.6V LGE Internal Use Only - 61 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 62: Charging Trouble Shooting
- Connection of TA or USB Cable - Check the Charging IC - Charging IC (BQ25040) - Check the battery - Battery LGE Internal Use Only - 62 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 63 Check changing IC(U1) SMT status by X-ray. Exchange changing IC or change the Main board and reset. Charger Troubleshoot Flow LGE Internal Use Only - 63 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 64: Ff Camera Trouble Shooting
MCLK(TP1), Reset(TP2), PWDN(TP3) Check IOVDD(TP4), DVDD(TP5), AVDD(TP6) Change the camera Camera is OK? Change the Main board LGE Internal Use Only - 64 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 65 CN5000 R5008 CAM_MCLK MIPI_CSI_CLKN MIPI_CSI_CLKP MIPI_CSI_DN MIPI_CSI_DP CAM_IOVDD_1.8V CAM_I2C_SDA CAM_RESET_N CAM_PWDN CAM_I2C_SCL C5002 C5003 C5004 2.2u 2.2u 4.7u LGE Internal Use Only - 65 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 66 R9009 R8006 TP4001 TP9000 VA8013 X4000 C4016 C4046 C4047 LGE Internal Use Only - 66 - Copyright © 2013 LG Electronics. Inc. All right reserved. C4021 TP4002 TP4003 C4055 Only for training and service purposes C4051 C4032 C4031 C4030 C4009...
Page 67: Main Lcd Trouble
Disconnect and reconnect LCD connector LCD display OK? Check Power VREG_MSME_1.8V(TP1) VREG_LCD_2.8V(TP2) Change the LCD Module Change the Main board LGE Internal Use Only - 67 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 69: Proximity Sensor On/Off Trouble Shooting
SCL Output & Prox_out (TP1,2,3) Work well? Chang the main board Measurement VREG_MSME_1.8V VREG_PROX_3.0V PROX_OUT PROX_I2C_SCL / SDA LGE Internal Use Only - 69 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 70 3. TROUBLE SHOOTING Proximity sensor VREG_PROX_3.0V VREG_MSME_1.8V VREG_MSME_1.8V U9002 PROX_I2C_SDA PROX_OUT PROX_I2C_SCL LEDK LEDA C6004 LGE Internal Use Only - 70 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 71: Motion Sensor On/Off Trouble Shooting
Change the Motion Sensor U6000 Check Motion_INT output Work well? Change the Main board Measurement VREG_MSME_1.8V MOTION_INT MOTION_I2C_SDA / SCL LGE Internal Use Only - 71 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 72 3. TROUBLE SHOOTING Accelerometer sensor VREG_MSME_1.8V MOTION_I2C_SCL U6000 BMA255 MOTION_I2C_SDA VDDIO GNDIO C6001 0.1u MOTION_INT C6003 0.1u LGE Internal Use Only - 72 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 73: Dc Motor Trouble Shooting
Change the PMIC TP1 and TP2 Change the Main board Change thr Motor, working well ? Measurement VBAT VIB_DRV_N LGE Internal Use Only - 73 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 74 3. TROUBLE SHOOTING VBAT VB7000 C7001 D7000 L7000 L7001 VIB_DRV_N LGE Internal Use Only - 74 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 75: Sim Detect Trouble Shooting
TP 2 is 1.8V or 3V? TP 3 is 1.8V or 3.0V and active? Change the Main B/D LGE Internal Use Only - 75 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 76 TP 5 or 8 is 1.8V or 3V ? TP 6 or 9 is 1.8V or 3.0V and active ? Change the Main B/D LGE Internal Use Only - 76 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 77 SIMCLK SIM2_CLK U8001 SIMI/O TXS02324 VSIM2 SIM2_IO SIM2RST SIM3_RST C8025 SIM2CLK SIM_CONTROLLER_IRQ SIM3_CLK SIM3_IO RSTX SIM2I/O R8022 SIM_CONTROLLER_RESET LGE Internal Use Only - 77 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 78 J8003 HSSC-6P-27_N SIM3_RST SIM3_CLK SIM3_IO GND1 GND4 GND2 GND3 C8022 VA8024 VA8021 C8020 VA8022 C8021 VA8023 C8008 0.1u LGE Internal Use Only - 78 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 80: Audio Troble
The sine wave appears at Change the U4001 (PMIC) R4023, R4021(TP3)? Change the U2000 (MSM7225A) or Change the main PCB LGE Internal Use Only - 80 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 81 3. TROUBLE SHOOTING Close to SPK CN7000 SPK_RCV_P SPK_RCV_N VA7000 VA7001 C7020 C7021 LGE Internal Use Only - 81 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82 SPKR_BYP_M RCV_N R4023 SPKR_BYP_P RCV_P FB4000 SPK_RCV_N SPKR_OUT_M FB4001 SPKR_OUT_P SPK_RCV_P GSM_PA_DAC_REF FB4001 FB4000 (TP2) U4001 R4023,R4021(TP3) U2000 LGE Internal Use Only - 82 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 83 The sine wave appears at Change the U4001 (PMIC) C4040, C4041(TP2)? Change the U2000 (MSM7225A) or Change the main PCB LGE Internal Use Only - 83 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 84 EAR_MIC_3.5PI M5-MIC CN7001 ZD7000 C7027 C7007 C7008 C7009 C7010 C7011 L7002 100n R7011 C7019 EAR_GND R7006 FB7002 FB7003 LGE Internal Use Only - 84 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 85 EAR_L_PMIC HPA_OUT_L EAR_R_PMIC HPA_OUT_R R4021 SPKR_BYP_M RCV_N R4023 SPKR_BYP_P RCV_P FB4000 SPK_RCV_N SPKR_OUT_M FB4001 SPKR_OUT_P SPK_RCV_P U4001 C4041,C4040(TP2) LGE Internal Use Only - 85 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 86 The Sine wave appears at Change the U4001 (PMIC) C4062, C4042(TP3)? Change the U2000 (MSM7225A) or Change the main PCB LGE Internal Use Only - 86 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 87 3. TROUBLE SHOOTING Close to SPK CN7000 SPK_RCV_P SPK_RCV_N VA7000 VA7001 C7020 C7021 TP1(CN7000) LGE Internal Use Only - 87 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 88 R4021 SPKR_BYP_M RCV_N R4023 SPKR_BYP_P RCV_P FB4000 SPK_RCV_N SPKR_OUT_M FB4001 SPKR_OUT_P SPK_RCV_P GSM_PA_DAC_REF FB4000, FB4001 (TP2) U4001 C4041,C4040(TP2) LGE Internal Use Only - 88 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 89 Change the U2000 (MSM7225A) or Some sound signal appears at C2015,C2014 (TP3)? Change the Main PCB Work Well? LGE Internal Use Only - 89 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 90 C2016 0.1u MAIN C- MIC MIC_BIAS C7015 2.2u MIC_1P R7007 C7018 MIC500 GOERTEK EAB62950601 MIC_1N R7008 C7013 C7014 LGE Internal Use Only - 90 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 91 3. TROUBLE SHOOTING R7007,R7008(TP2) U2000 C2014 (TP3) C2003 (TP1) C2015 (TP3) LGE Internal Use Only - 91 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 92 Change the CN7001 Change the U2001 (MSM7225A-0-AB) Some sound signal appears at C2008 (TP4)? or Change the Main PCB LGE Internal Use Only - 92 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 93 2.2K HSED_BIAS1 EAR_MIC_3.5PI J_MIC HS_MIC R7025 C7022 C7023 C7024 C7026 0.1u 470p CN7001 C7024 (TP1) U7000 R7012 (TP2) LGE Internal Use Only - 93 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 94 3. TROUBLE SHOOTING M6-GND FB7002 1800 M1-R M4-DETECT 1800 FB7003 M4-L 1800 FB7004 M5-MIC CN7001 ZD7000 C7027 FB7004 (TP3) LGE Internal Use Only - 94 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 95 3. TROUBLE SHOOTING MIC_BIAS VREG_MSME_1.8V C2002 C2001 C2003 0.1u C2016 0.1u U2000 C2008 (TP4) LGE Internal Use Only - 95 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 96: Download
TOOL INFORMATION TOOL VERSION DLL NAME USB DRIVER Please Check the Version to “B2B” Name Part No. D/L Cable LGE Internal Use Only - 96 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 108 4. DOWNLOAD LGE475F LGE475F LGE475FAT-00-V10a-SSV-XXX-JUN-03-2013+0.tot LGE475F LGE Internal Use Only - 108 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 109 4. DOWNLOAD LGE475F LGE475F LGE475FAT-00-V10a-SSV-XXX-JUN-03-2013+0.tot LGE475F LGE475F LGE Internal Use Only - 109 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 113: Block Diagram
PON_RESET_N VIB_DRV_N RESIN_N MINIABB_I2C PM8029 USIM3 Charging IC/ LCD Backlight V_BAT Charge Pump 1300mAh XTAL VIBRATOR 32.768KHz RT8966 LGE Internal Use Only - 113 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 114 VREG_TOUCH_3.0V TOUCH IC VREG_L1 19.2Mhz VREG_LCD_2.8V VREG_L10 CAM_AVDD_2.8V MLED[1:4] CAM_DVDD_1.2V 2M CAM CAM_IOVDD_1.8V VREG_PROX_3.0V PROXIMITY Power Block Diagram LGE Internal Use Only - 114 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 115 HPH_R HPH_R SPKR_IN_P SPK_RCV_P SPKR_OUT_P RCV_N SPK_RCV_N EAR1_ON SPKR_BYP_M SPKR_OUT_M RCV _P EAR1_OP SPKR_BYP_P LGE435 Audio Block Diagram LGE Internal Use Only - 115 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 116 WB_MIX_INM TCXO W2100 Rx SAW B9411 GPS_IN GPS LNA TCXO TRX_LO_CNK VCONT GPS BPF GPS_LNA_EN RF Block Diagram LGE Internal Use Only - 116 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 117 SYS_RST_N BT_PCM_IN GPIO_68 BT_PCM_OUT BT_PCM_OUT GPIO_69 BT_PCM_IN SLEEP_CLK 32.7678KHz BT_PCM_SYNC GPIO_70 BT_PCM_SYNC BT_PCM_CLK BT_PCM_CLK GPIO_71 BT/WLAN/FM Block Diagram LGE Internal Use Only - 117 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 118: Circuit Diagram
C1114 5.6n 0.5p 3.9n GND1 GND2 GND5 C1116 GND3 GND4 1.2p C1117 Band V R1023 GPS_MODE C1115 6.8p - 118 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 119 EBI2_A_D_12 GPS_MODE AN15 EBI2_A_D_13 GPIO_82 EBI2_DATA[13] AT14 GPIO_83 FM_RDS_INT EBI2_DATA[14] EBI2_A_D_14 GPIO_84 EBI2_DATA[15] EBI2_A_D_15 MSM_USIM2_CLK GPIO_85 VREG_MSME_1.8V R2013 - 119 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 120 (USB1.8 : 1ea, A3 : 2ea, A5 : 1ea) VREG_PLL_1.1V VREG_MSMA1_2.6V C3059 C3062 C3063 C3065 C3055 C3056 C3058 470n 470n 470n 470n 470n 470n 470n - 120 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 121 17.25 100K 19.1K 26.34 100K 35.42 100K 43.51 100K 52.5E 100K 100K 83.95 100K 130K 96.A9 100K OPEN - 121 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 122 MAKER INOUT_A4 INOUT_B4 EBI2_DATA[3] HIGH INOUT_A3 INOUT_B3 EBI2_DATA[2] C5005 INOUT_A2 INOUT_B2 EBI2_DATA[1] TIANMAS EBI2_DATA[0] INOUT_A1 INOUT_B1 FL5005 15pF - 122 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 123 CN6008 CN6009 CN6010 CN6011 U9002 PROX_I2C_SDA PROX_OUT PROX_I2C_SCL CN6012 CN6013 CN6014 CN6015 CN6016 CN6017 Daisy_Chain LEDK LEDA C6004 - 123 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 124 C7024 C7026 4POLE ZD7000 C7027 0.1u 470p C7007 C7008 C7009 C7010 C7011 L7002 100n R7011 C7019 EAR_GND R7006 - 124 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 125 SW8003 R8009 KEY_ROW[0] MMC_DATA[2] R8011 KEY_COL[0] MMC_DATA[3] VA8015 R8012 KEY_ROW[1] SW8002 MMC_CMD R8008 MMC_CLK MMC_DATA[0] MMC_DATA[1] nMICROSD_DET C8010 - 125 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 126 100p 100p WLAN_SDIO[0] SDIO_DATA0 GND_A19 GND_A20 R9009 FB9001 +3V_WLAN_WCN C9042 C9043 C9041 2.2u 100p 0.1u colse to pin78 - 126 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 127: Bga Pin Map
U3001 - Memory MCP (Top View) 7. BGA PIN MAP U3001 - Memory MCP (Top View) NOT IN USE LGE Internal Use Only - 127 - Copyright © 2013 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 128 7. BGA PIN MAP U2000 - MSM7225A (Top View) U2000 - MSM7225A (Top View) LGE Internal Use Only - 128 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 129 7. BGA PIN MAP U4001 - PM8029 (Bottom View) U4001 - PM8029 (Bottom View) NOT IN USE LGE Internal Use Only - 129 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 130 7. BGA PIN MAP U1000 - RTR6285A (Top View) U1000 - RTR6285A (Top View) NOT IN USE LGE Internal Use Only - 130 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 131 7. BGA PIN MAP U9000 – WCN2243 (BT/FM) (Top View) U9000 – WCN2243 (BT/FM) (Top View) LGE Internal Use Only - 131 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only...
Page 132 7. BGA PIN MAP U9001 – WCN1314 (WiFi) (Top View) U9001 – WCN1314 (WiFi) (Top View) NOT IN USE LGE Internal Use Only - 132 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 133: Pcb Layout
- no Touch Function VA7001 VA7000 R7001 C7021 C7020 C7010 R7008 R7007 C7014 C7013 C7018 R7010 R501 LG-E475F_MAIN_EAX65236401_1.0_TOP - 133 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 134 - no Network service GSM - no Tx power R4028 R4027 FL4001 - no Tx Power C1001 C1127 C1007 MIC500 CN4000 LG-E475F_MAIN_EAX65236401_1.0_BOT - 134 - LGE Internal Use Only Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 135: Calibration
I/O Cable RF Cable_Main Power Supply_PIF Power Supply 5.3V Power Supply_Phone Power Supply 5.0V RF Test Equipment E5515C(8960) NOTICE LGE Internal Use Only - 135 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 136 9. CALIBRATION E475F MS695 [Tachyon36]LGMS695_20120213_Calibration LGE Internal Use Only - 136 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 140 9. CALIBRATION LGE475F LGE475F LGE475F LGE475F LGE475F LGE475F LGE475F LGE475F LGE475F LGE Internal Use Only - 140 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 142 RF cable : (P/No : ) “RIF-200 and phone” are connected in 5P E-SATA DC_Plug 5P E-SATA DC_Plug LGE Internal Use Only - 142 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 151 9. CALIBRATION LGE475F E475F LGE475F LGE475F LGE475F LGE475F LGE475F LGE Internal Use Only - 151 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 154: Hidden Menu
Start the desired menu: Menu, click Version Info Classified Information representation -> Hidden Menu -> Settings -> Version Info LGE Internal Use Only - 154 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 155 Allauto Test : -> You can test all functions automatically Auto All Test Result -> You can check Test Results LGE Internal Use Only - 155 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 156 SIM switch key : Touch Key Proximity Sensor : Bilnd the Proximity sensor Camera Test – Snapshot Touch screen to capture LGE Internal Use Only - 156 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 157 Camera is recoding for 5 seconds 2D LCD Display Test Check Black & White Color Sound Test Touch the “Play” button LGE Internal Use Only - 157 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 158 Draw a guide line Motion Sensor Test Check 3 positions -> Position side ->Position horizontally -> Position Vertically LGE Internal Use Only - 158 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 159 87.5 Mhz is scanned automatically Connect ear-jack Sound Loopback Test “On” is test mode on “Off” is test mode off LGE Internal Use Only - 159 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 160: Disassemble Guide
11. DISASSEMBLE GUIDE 11. DISASSEMBLE GUIDE 1. Disassemble Battery Cover Take apart the battery cover using nail-hole below LGE Internal Use Only - 160 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 161 11. DISASSEMBLE GUIDE 2. Disassemble Battery & Screw Screw rear Take apart the battery and remove screw (6points) LGE Internal Use Only - 161 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 162 3.1 Disassemble Rear Cover Hook off the top of Front cover by using a disassembling paddle Take apart the Rear cover. LGE Internal Use Only - 162 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 163 3.2 Disassemble Rear Cover Take apart the Pad speaker and motor by using pincette Detach the Speaker from the rear cover LGE Internal Use Only - 163 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 164 Take apart the PCB after widen the gap between Take the FPCB out of main PCB Front cover and main PCB LGE Internal Use Only - 164 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 165 Take apart the LCD out of Front cover Tip : Easy to take apart the LCD module from top side LGE Internal Use Only - 165 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 166 6. Disassemble Shield Can & Camera Hook off the notches below (2points) and pull on the other side. Camera Take apart the Camera LGE Internal Use Only - 166 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 168: Exploded View & Replacement Part List
12. EXPLODED VIEW & REPLACEMENT PART LIST This document is draft version, so the contents will be updated after registering the final one. LGE Internal Use Only - 168 - Copyright © 2013 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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