Page 1 Internal Use Only Service Manual LG-E900 Date: September, 2010 / Issue 1.0...
Page 2: Table Of Contents
4. TROUBLE SHOOTING ............62 11. Accessory ................... 209 4.1 RF Component................62 4.2 SIGNAL PATH ..................64 4. Checking TCXO Block ..............68 - - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 4: Introduction
In accordance with these agencies, you may be required to provide information such as the following to the end user. - 5 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 5 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. - 6 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 6: Abbreviations
International Portable User Identity Intermediate Frequency Liquid Crystal Display Low Drop Output Light Emitting Diode OPLL Offset Phase Locked Loop 6/140 - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 7 UART Universal Asynchronous Receiver/Transmitter Voltage Controlled Oscillator VCTCXO Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol 7/140 - 8 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 8: Performance
Part Name Comment Digital Baseband QSD8650 : Qualcomm Analog Baseband PM7540 : Qualcomm RF Chip RTR6285 : Qualcomm - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 9: Hw Features
Data & Fax Built in Data & Fax support Vibrator Built in Vibrator Blue Tooth V2.1 + EDR - 10 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 10 MPEG4, H.264 Voice Recording Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Data Cable T-Flash (External Memory) - 11 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 11: Sw Features
It depends on available memory amount. Fixed Dial Number Service Dial Number Own Number Read only (add/edit/delete are not supported) - 12 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 12 Ver. 2.1+EDR (HSP,HFP,A2DP,AVRCP) FM radio GPRS Class 12 EDGE Class 12 Hold / Retrieve Conference Call Max. 6 - 1 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 14: Hw Spec
Speech channels : -98dBm/-96dBm (2.439%) AM Suppression GSM : -31dBm -98dBm/-96dBm (2.439%) DCS : -29dBm Timing Advance ± 0.5T - 15 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 15 < 17.5 %, when Pout ≥ -20 dBm Peak Code Domain Error < -15 dB at Pout -20 dBm - 16 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 16 +1.5/4 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 - 17 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 17 > 33 dB @ ±5 MHz > 43 dB @ ±10 MHz Error Vector Magnitude < 17.5 %, when Pout ≥ -20 dBm - 18 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 18 ≥ -10dBm(1Mbps,2Mbps,5.5Mbps,11Mbps) @ FER ≤ 8% Rx Adjacent Channel ≥ 35dB @FER ≤ 8%, Rejection interference input signal -70dBm@fc±25MHz(11Mbps) - 19 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 19 1574.42 MHz ~ 1576.42 MHz Minimum Sensitivity 1 satellite ≥-142dBm, 7 satellites ≥ -147dBm at coarse time aiding - 20 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 21: Technical Brief
3. TECHNICAL BRIEF 3.1 RF GENERAL DESCRIPTION The E900 supports UMTS-900(Band VIII), UMTS-1900(Band II), UMTS-2100(Band I), GSM- 850, GSM-900, GSM- 1800, and GSM-1900 based GSM/GPRS/EDGE/UMTS. All receivers and the UMTS transmitter use the radioOne1Zero-IF architecture to eliminate intermediate frequencies, directly converting signals between RF and baseband.
Page 22 Key parameters such as under-voltage lockout and crystal oscillator signal presence are monitored to protect against detrimental conditions. - 2 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 23: Gsm Mode
The RTR6285 input stages include MSM-controlled gain adjustments that maximize receiver dynamic range. - 24 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 24 The RTR6285 input stages include MSM-controlled gain adjustments that maximize receiver dynamic range. - 25 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 25 These filter circuits include DC offset corrections. The filter outputs are buffered and passed on to the MSM7200A IC for further processing as shown in Figure 1-3. [Figure 1-3] RTR6285 RX feature - 26 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 26 GSM application. Both high-band and low band outputs are followed by resistive pads to ensure that the load presented to the outputs remains close to 50ohm. - 27 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 27: Umts Mode
RTR6285 is downconverting GSM signals and on when the UMTS is operating. [Figure 1-5] UMTS Receiver Inputs Topologies - 28 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 28: Umts Transmitter
The RTR6285 IC is able to support UMTS 2100/1900/1800/1700/900 and 850 mode transmitting. This design guideline shows UMTS 2100, UMTS1900 and UMTS850 applications. - 29 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 29 3. TECHNICAL BRIEF [Figure 1.6] RTR6285 IC Functional Block Diagram - 0 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 30: Gps Mode
PLL synthesizers, the RTR6285 ICs have the advantage of more flexible loop bandwidth control,fast lock time, and low-integrated phase error. - 1 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 31: Off-Chip Rf Components
12 General Packet Radio Service (GPRS) multi-slot operation and EDGE Polar Modulation. WCDMA switch- through support is provided by three dedicated high-linearity ports. [Table 1] Antenna Switch Module Logic - 2 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 32 Input Match RF_IN (2) (9) RF_OUT Match Match GND (7) CPL_OUT (6) CPL_IN (8) SKY77701 Functional Block Diagram. - - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 33 RF_IN (2) Input Match (9) RF_OUT Match Match GND (7) CPL_OUT (6) CPL_IN (8) SKY77702 Functional Block Diagram. - 4 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 34 50ohm input and output matching networks. The PA also contains internal DC blocking capacitors for RF input and output ports. - 5 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 35: Digital Baseband(Dbb/Qsd8650)
• Vocoder support(EVRC, 1K QCELP®, GSM-HR, FR, EFR, AMR and 4GV™) • Advanced 15mm x 15mm x 1.4mm, 0.5mm pitch, 60-pin lead-free SCP packaging technology - 6 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 36: Hardware Architecture
3. TECHNICAL BRIEF 3.7 Hardware Architecture < Power Block > - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 37: Lcd Interface
3. TECHNICAL BRIEF <LCD Interface > LCD I t f <LCD Interface> <CAMERA Interface > <CAMERA Interface> - 8 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 38 Proximity Sensor PROX_I2C_SDA GP2AP002S00F GP2AP002S00F PROX_OUT PROX_I2C_SCL Lighting Sensor Lighting Sensor PROX_I2C_SDA BH1721FVC BH1721FVC Great Company Great People - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 39: Microprocessor Subsytem(Qsd8650)
-NAND flash memory interface (with one NAND) and byrst NOR -Boot from NAND • Intemal watchdog and sleep timers - 40 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 40: Power Block
Interrupt Manager for time-critical information. Another dedicated IC Interface circuit monitors multiple trigger events and controls the power-on sequence. - 41 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 42 These pins are connected to the Source (or emitter) and Drain (or collector) contacts of the pass transistor respectively. - 4 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 43 (VBAT). Trickle charging can be used for lithium-ion and nickel-based batteries, with its performance specified below (3.2V). The charging current is set to 80mA. Parameter Unit Trickle Current - 44 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 44 • Full charge indication current (icon stop current) : 50mA • Cut-off : fuel guage 0% Battery icon display - 45 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 45: W Sub System
UART signals are connected to MSM GPIO through IO connector with 115200 bps speed. GPIO_Map Name Note GPIO_86 UART3_RX Data_Rx GPIO_87 UART3_TX Data_Tx Table. UART Interface - 46 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 46 PM7540 IC and a USB high-speed PHY IC provide support for the high-speed interface. Figure. USB block( QSD8650 internal phy ) - 47 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 47 The power key is controlled by PM7540. side keys & front keys are controlled by QSD8650 GPIO. SW401 KPD_PWR_N REV.C PM7540 ESCY0008301 Figure. POWER KEY QSD8650 QSD8650 Figure. SIDE KEY & FRONT KEY - 48 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 48 3. TECHNICAL BRIEF 3.10.5 Touch Windows Interface LG-E900 implemented TOUCH function by using capacitive sensing method. Touch module has a synatics touch driver IC. Phone has only part for connection & I2C. Touch Connector TOUCH_INT TOUCH_SCL TOUCH_SDA TOUCH I2C controller ( FPGA ) U507 is FPGA IC.
Page 49: Audio And Sound
3. TECHNICAL BRIEF 3.11 Audio and sound 3.11.1 Overview of Audio path Figure. Block diagram of Audio path - 50 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 50 The DSP audio processing is configured through the QDSP5000 command types and is not directly controlled by the microprocessor. - 51 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 51 The WM909 features a fully differential mono input, and two single-ended stereo inputs. Figure. Audio Subsystem (WM9093) - 52 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 52 VREG_MSMP_2.6V R510 R509 VREG_MSME_1.8V 0603 FB505 1800 ohm,1005 ,Bead AUDIO_I2C_SCL AUDIO_I2C_SDA GND|EAR_GND 0603 EAR_GND connect to subsystem GND(C4) - 5 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 53: Display
WLED7 LCD_MAKER_ID WLED8 C549 C550 ENBY0040701 2.2u 2.2u GB042-30S-H10-E3000 D504 Figure. Schematic of LCD connector (in Main PCB) - 54 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 54: Proximity Sensor
Figure. Proximity Sensor Schematic 3.14 Light Sensor The Light sensor control automatically LCD Backlight level. Figure. Light Sensor Schematic - 55 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 55: Motion Sensor (Three-Axis-Accelerometer)
C505 C533 0603 0.1u 0.1u CMPS_INT CMPS_RESET_N RSTN U502 CAD0 CAD1 AK8973B CMPS_I2C_SDA CMPS_I2C_SCL EUSY0385501 Figure. Compass Schematic - 56 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 57: Lg -E900 Main Features
- Supports Bluetooth and HS-USB - Supports WLAN - Supports FM Radio - 1500 mAh (Li-Ion Polymer) - 16GB internal memory - 58 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 58: Main Component
3. TECHNICAL BRIEF 3.18 Main Component Audio SWITCH MEMORY PMIC FPGA 3D SENSOR QSD8650 POWER TI BUCK - 59 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 59 3. TECHNICAL BRIEF CAMERA COMPASS 3.5 pi AUDIO Wifi/BT/FM TOUCH FLASH MEMORY (16GB) SOCKET - 60 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 60: Volume Key
3. TECHNICAL BRIEF proximity VOLUME CAMERA Back,Window,Search Key - 61 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 61: Trouble Shooting
4. TROUBLE SHOOTING 4. TROUBLE SHOOTING 4.1 RF Component - 62 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 62 VCTCXO FL1002 WCDMA (VIII) Duplexer SW102 RF Antenna Connector FL103 WCDMA (I) Duplexer RF component (WCDMA / GSM) - 6 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 63: Signal Path
4.2 SIGNAL PATH GSM850/GSM900/DCS/PCS’s RX/TX Signal PATH A. GSM850/GSM900/DCS1800/PCS1900 RX PATH B. GSM850/GSM900/DCS1800/PCS1900 TX PATH C. COMMON TX/RX PATH - 64 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 64 D1. WCDMA 2100 RX PATH E1. WCDMA 1900 RX PATH F1. W900 Rx PATH G1. COMMON TX/RX PATH - 65 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 65 WCDMA I,II and VIII Band TX Signal PATH D2. WCDMA 2100 TX PATH E2. WCDMA 1900 TX PATH F2. W900 Tx PATH - 66 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 67: Checking Tcxo Block
C331 Clesed to TCXO 19.2MHz TCXO_USB_XO 1.0T Schematic of the Crystal Part(19.2MHz) Schematic of the Crystal Part (19.2MHz) - 68 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 68: Only For Training And Service Purposes
2.4V ≥ Voltage ≥ 0.4V Check the QSD8650 Check TP Check soldering and 19.1 MHz Signal components TCXO is OK - 69 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 69: Checking Fem Block
4. TROUBLE SHOOTING 4.4 Checking FEM Block ANT_SEL2 VPWR ANT_SEL1 ANT_SEL3 ANT_SEL0 - 70 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 70 PGND10 C155 C216 ANT_SEL0 ANT_SEL1 ANT_SEL2 ANT_SEL3 C178 C176 C173 C171 0603 Schematic of the Antenna Switch Block - 71 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 71 High Level 4.2V < Voltage < .6V Check the TP1(VPWR) Check the TP1(VPWR) Check the Logic in each mode - 72 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 72: Checking Wcdma Block
. Check RF Tx Level 4. Check PAM Block Refer to 1.5.4 5. Check RF Level 6. Ro-download SW & Cal. - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 73 Refer to 1.3 4.5.2 Checking FEM Block Refer to 1.4 4.5.3 Checking RF TX Level Test Point (TX Level) - 74 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 74 L142 3.9n B9419 EUSY0365401 8.2n RX_WCDMA_1700_1900_P C230 L140 2.7n 0.5p C244 C246 VREG_TCXO_2.85V 100p R131 ANT_SEL2 R132 W_LNA_EN - 75 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 75 Check PAM Block Refer to 1.5.4 RTR6285 Maximun output Power = 7dBm RTR6285 minimun output Power = -80dBm - 76 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 76: Checking Pam Block
PAM OUT power must be over 21 dBm PAM IN power must be under 10 dBm Test Point (TX Level) - 77 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 77 L142 3.9n B9419 EUSY0365401 8.2n RX_WCDMA_1700_1900_P C230 L140 2.7n 0.5p C244 C246 VREG_TCXO_2.85V 100p R131 ANT_SEL2 R132 W_LNA_EN - 78 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 78 RF Tx Level is OK Check TP2 PA_RO ≥ 2.6V Check QSD8650 Check TP1 Over 10 dBm? Check RTR6285 Change the board - 79 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 79 4. TROUBLE SHOOTING 4.5.5 Checking RF Rx Level Bias Test Point (RF Rx Level) - 80 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 80 PGND4 PGND5 PGND6 PGND12 PGND11 +VPWR PGND10 C155 C216 ANT_SEL0 ANT_SEL1 ANT_SEL2 ANT_SEL3 C178 C176 C173 C171 0603 - 81 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 81 C157 G1 O1 C172 RX_WCDMA_2100_LNA_OUT 2140MHz C166 G2 O2 C163 1.5n L122 WB2100_MIX_INP WCDMA RX 2100 LNA Circuit - 82 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 82 Check TP Signal exist? Check Duplexer Check TP4 Signal exist? Check RTR6285 and Rx SAW filter Change the board - 8 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 83: Checking Gsm Block
1. Check TCXO Block 2. Check ANT_SW Module . Check RF TRX Level 4. Ro-download SW & Cal. - 84 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 85 4.6.1 Checking TCXO Block Refer to 1.3 4.6.2 Checking FEM Block Refer to 1.4 Checking RF TX level - 86 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 86 G2 O2 ANT_SEL3 L133 C206 2.7p C178 RX_PCS_P 1960MHz C176 C173 C171 0603 Schematic of GSM/DCS/PCS Tx Block - 87 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 87 If DCS/PCS(TP) over 6 dBm? No Problem Check RTR & PAD Check soldering and components Still exist Problem Change the board - 88 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 89 G2 O2 ANT_SEL3 L133 C206 2.7p C178 RX_PCS_P 1960MHz C176 C173 C171 0603 Schematic of GSM/DCS/PCS Rx Block - 90 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 90 Check TP1 Signal exist? Check RF Switch (M/S) Check TP2 Signal exist? Check FEM Block Refer 1.4 Change the board - 91 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 91: Gps/Wifi/Bt/Fm Radio Rf Components
CN101 ANTENNA PAD connected to FPCB type antenna CN102 GND PAD FL116 GPS SAW FILTER U105 GPS LNA - 92 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 92 ANTENNA PAD connected to FPCB type antenna ANT701 GND PAD U702 BT / WiFi / FM radio module - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 93: Gps/Wifi/Bt Signal Path
4. TROUBLE SHOOTING 4.8 GPS/WIFI/BT Signal path GPS LNA RTR6285 GPS RX signal path- Main board top side - 94 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 94 4. TROUBLE SHOOTING BT / WiFi T/RX signal path- Sub board top side - 95 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 95: Gps/Wifi/Bt Trouble Shooting
C162 C161 0.1u R107 GPS_LNA_EN FIL_OUT U105 C159 C160 0603 GPS_IN REV.C C168 Schematic of the A-GPS block - 96 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 96 Check TP1 About 2.7V? Check power LRC filter soldering Check TP2 About 2.6V? Check SW and NV item Change the board - 97 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 97 Sub board top side START 1. Check the Power 2. Check the Clock . Check the Module Component Change - 98 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 98 Test point Net name Voltage level +VPWR 3.7V(nominal) VREG_MSMP6_2.8V 2.8V VREG_MSMP_2.6V 2.6V Test points of BT / WiFi block - 99 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 99 Check the PMIC TP1 = 2.8V Check TP3 Check the PMIC TP1 = 2.6V Check the Clock block - 100 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 100 Test point Net name Voltage level CLK_REQ logic: high CLK_IN 26MHz Test points of BT / WiFi block - 101 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 101 BT / WiFi Module TP1 = logic high Check TP2 Check X-tal(X701) 26MHz Check the BT / WiFi Module block - 102 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 102 BT_WAKE_B BT_HOST_WAKEUP BT_HOST_WAKE_B I2S_DI Schematic of the BT / WiFi block Test point Net name Power [dBm] RF_IN_OUT - 10 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 103 6. You can select wanted test cases after getting an optimized power 7. Blue tooth On/Off - Menu Key settings Bluetooth Turn on/Turn off - 104 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 104: Power On Troubleshooting
TP10 is high ? Is clock ok? Change the Main R427 : 19.2M board C462 : 32.768Khz Redownload sw image - 105 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 105 1.23V MSMC2_APC_1.23V 1.23V VMSMP_2.6V 2.6V VMSME_1.8V 1.8V VTCXO_2.85V 2.85V VMSMA_2.6V 2.6V PMIC_TCXO 19.2MHz SLEEP_CLK 32.768KHz TP10 PS_HOLD 2.6V - 106 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 107: Charger Troubleshooting
- Charging current path(NUS5530MIN) - Check the OVP Circuit - Battery - Check the charging current Path - Check the battery - 108 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 108 Check PMIC(U405) SMT status by X-ray Exchange U405 or Change the Main board And Retest [ Charger Troubleshooting Flow ] - 109 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 109 Net name Voltage level Micro USB connector IO connector 1pin 4.8V or 5V VCHG_VBUS 4.8V or 5V PMIC - 110 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 110: Usb Trouble
Check FL400 to 5V? (TP1) USB DATA line any signal? Check IC400 (TP3) (TP2) Change the Main board - 111 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 111 4. TROUBLE SHOOTING Test point Net name Voltage level VCHG_VBUS 4.8V or 5V USB DATA 0V,3.3V,400mV MUIC Visual check - 112 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 112: Audio Trouble
Change the Main Board At TP1? The sine wave appear Change the Main Board at TP2? Can you hear the tone? - 11 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 113 C518 IN1+ HPH_L IC501 C522 LINE_OP IN2- WM9093ECS-R C521 IN2+ LINE_ON EUSY0403901 C536 IN3- RCV_P C537 RCV_N IN3+ - 114 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 114 The sine wave appear at Change the Main board TP2 ? Can you hear the tone Check the Ear-mic or sound? - 115 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 115 C522 IN2- LINE_OP WM9093ECS-R C521 IN2+ LINE_ON EUSY0403901 C536 IN3- RCV_P C537 IN3+ RCV_N FM_ANT EAR_R EAR_L REV.E - 116 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 116 The sine wave appear at Change the Main board TP2? Can you hear the tone? Change the Speaker - 117 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 117 C518 IN1+ HPH_L IC501 C522 IN2- LINE_OP WM9093ECS-R C521 IN2+ LINE_ON EUSY0403901 C536 IN3- RCV_P C537 IN3+ RCV_N - 118 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 118 Change the Main B’d sound signal at TP2? Can you scoping some Change the MIC sound signal at TP3 Work well? - 119 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 120 MIC Can you scoping some Change the Main b’d sound signal at TP2? Change the Ear-mic Work well? - 121 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 121 VREG_MSMP_2.6V VREG_MSMP_2.6V VOUT HS_MIC_BIAS_EN EUSY0393901 EAR_SENSE FM_ANT M6_GND EAR_R M1_R M4D-DETECT M3_DETECT EAR_L M4_L HS_MIC M5_MIC REV.E REV.E - 122 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 122: Camera Trouble
Check CAM DATA TP6 (FL501,FL502,FL503) Change the camera Change the Filter (FL600,FL601,FL602) Camera is OK Change the Main board - 12 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 123 VREG_CAM_DVDD_1.8V 1.8V VREG_CAM_AVDD_2.8V 2.8V VREG_CAM_AF_2.8V 2.8V CAM_MCLK Rectangular signal CAM_RESET_N 1.8V or 0V CAM_DATA 0-9 1.8V or 0V - 124 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 124: Main Lcd Trouble
TP2 C549), TP3 (FL504) TP4 (D504_PIN4) TP5 (U508) Change the LCD module Change the Main BD The LCD works - 125 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 125 VREG_LCD_3.0V 3.0V VREG_LCD_1.8V 1.8V MDDI DATA Filter short/open check LCD_RESET_N 0V or 1.8V LCD BACKLIGHT IC Visual Check - 126 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 126: Sim Detect Troubleshooting
1.8V or 2.85V SIM_CLK 1.8V or 2.85V clock SIM_RST 1.8V or 2.85V SIM_IO 1.8V or 2.85V any signal - 127 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 127 4. TROUBLE SHOOTING VREG_RUIM_2.85V GND1 SIM_RST SIM_CLK SIM_IO GND2 GND5 GND3 GND4 Figure .USIM part schematics - 128 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 128: Key Troubleshooting
Change the Main board And Retest Test Net name Voltage level point KEY_COL0 KEY_COL1 KEY_COL2 KEY_COL3 KEY_ROW0 2.6V KEY_ROW1 2.6V - 129 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 129: Vibrator
3V? (TP2) Change the main board. Test Net name Voltage level point Motor wire Visual check operation voltage - 10 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 130: Proximity Sensor On/Off Trouble
Check POWER & SIGNAL ( TP1 ~ TP4 ) Chasnge the KEY_FPCB Work well? Change the Main Board - 11 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 131 Test point Net name Voltage level VREG_PROXI_2.6V 2.6V PROX_I2C_SCL Clock pulse PROX_I2C_SDA Any signal check PROX_OUT 0V or 2.6V - 12 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 132: Luminance Sensor On/Off Trouble
Change the Main Board Check ALS I2C signal (TP2,TP3) Change the Main Board Change the KEY PCB Work well? - 1 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 133 4. TROUBLE SHOOTING Test point Net name Voltage level VREG_ALS_1.8V 1.8V ALS_I2C_SCL Clock pulse ALS_I2C_SDA Any signal check - 14 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 134: Motion Sensor On/Off Trouble
I2C signal ( TP2 ,TP3 ) & U504 INT signal ( TP4 ) Change the Main Board Work well? - 15 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 135 Test point Net name Voltage level VREG_MSMP_2.6V 2.6V 3D_SCL Clock pulse 3D_SDA Any signal check 3D_INT_N 0V or 2.6V - 16 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 136: Download
5. DOWNLOAD 5. DOWNLOAD LG-E900 LG-E900 - 17 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LGE Internal Use Only - 164 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 137 5. DOWNLOAD LG-E900 LG-E900 LG-E900 - 18 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 165 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 138 4. TROUBLE SHOOTING 5. DOWNLOAD LG-E900 LG-E900 - 19 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LGE Internal Use Only - 166 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 139 5. DOWNLOAD LG-E900 LG-E900 LG-E900 - 140 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 167 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 140 4. TROUBLE SHOOTING 5. DOWNLOAD LG-E900 - 141 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LGE Internal Use Only - 168 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 141 4. TROUBLE SHOOTING 5. DOWNLOAD - 142 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 169 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 142 4. TROUBLE SHOOTING 5. DOWNLOAD - 14 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LGE Internal Use Only - 170 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 143 4. TROUBLE SHOOTING 5. DOWNLOAD - 144 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 171 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 144 4. TROUBLE SHOOTING 5. DOWNLOAD - 145 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LGE Internal Use Only - 172 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 145 4. TROUBLE SHOOTING 5. DOWNLOAD - 146 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 173 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 146 LG-E900 LG-E900 LG-E900 LG-E900 - 147 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LGE Internal Use Only - 174 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 147 LG-E900 LG-E900 LG-E900 LG-E900 - 148 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 175 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 148 LG-E900 LG-E900 LG-E900 LG-E900 - 149 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only LGE Internal Use Only - 176 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 149: Block Diagram
BT_WLAN TCXO & USIM BT_WLAN TCXO & USIM USB PHY POWR LDO USB PHY POWR LDO DC Motor DC Motor - 150 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 150 MSM_USIM_RST SIM_RST eMMC PMIC MSM_USIM_CLK SIM_CLK USIM 16GB eMMC_DATA[7:0] PM7540 MSM_USIM_DATA SIM_IO Great Company Great People - 151 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 151 Proximity Sensor PROX_I2C_SDA GP2AP002S00F GP2AP002S00F PROX_OUT PROX_I2C_SCL Lighting Sensor Lighting Sensor PROX_I2C_SDA BH1721FVC BH1721FVC Great Company Great People - 152 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 152 PM7540 HIGH SPEED HIGH SPEED QSD8650 USB_D+ USB_D- USBH_DM TS5USBA33402YZPR USB_ID USBH_DP (MUIC) VCHG_VBUS Great Company Great People - 15 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 153 AUDIO_I2C_SCL AUDIO_I2C_SDA HS_MIC HS_MIC Headset MIC2 2.1V LDO (HS_MIC_BIAS) MIC_1P MIC1 MIC_1N MICBIAS PM7540 Great Company Great People - 154 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 154 RX SAW GSM1800 RX DCS_INP DAC_IREF DAC_IREF RX SAW DCS_INN GSM1900 RX GPCS_INP GPCS_INN RX SAW ANT_SEL0/1/2/3 MODE _TXEN - 155 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 158: Circuit Diagram
EUSY0365401 B9419 8.2n RX_WCDMA_1700_1900_P C230 L140 REV.C C168 2.7n 0.5p C244 C246 VREG_TCXO_2.85V 100p R131 ANT_SEL2 R132 W_LNA_EN Copyright © 2010 LG Electronics. Inc. All right reserved. - 159 - LGE Internal Use Only Only for training and service purposes...
Page 159: Circuit Diagram
VOUT C268 C269 2.2u VREG_MSMP_2.6V R251 0603 VREG_MSMP_2.6V 0603 D251 R254 RESIN_N nPON_RST KDS114E-RTK_HA ZD251 C319 ESD9B5_0ST5G EDTY0010101 LGE Internal Use Only - 160 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 160 ON_SW VBAT VBAT OJ333 OJ331 OJ334 OJ335 URXD UTXD C371 0.1u U334 TRK_LO PMIC_TCXO R354 RTR_TRK_LO_ADJ C372 C370 Copyright © 2010 LG Electronics. Inc. All right reserved. - 161 - LGE Internal Use Only Only for training and service purposes...
Page 161 R432 0603 R445 DEFLDO2 AGND1 200K AGND2 G_SLUG C415 C414 C413 C410 C412 C411 2.2u 2.2u REV.B REV.B LGE Internal Use Only - 162 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 162 EUSY0354001 INOUT_B1 INOUT_A1 INOUT_B2 INOUT_A2 CAM_DATA[9] 5M_CAM_DATA[9] C508 C504 C501 C507 INOUT_B3 INOUT_A3 CAM_DATA[8] INOUT_B4 INOUT_A4 5M_CAM_DATA[8] SFEY0013501 Copyright © 2010 LG Electronics. Inc. All right reserved. - 163 - LGE Internal Use Only Only for training and service purposes...
Page 163 REV.C SIM_RST WLAN_SDIO[1] SIM_CLK WLAN_SDIO[0] REV.C SIM_IO REV.C WLAN_CLK FM_R REMOTE_PWR_ON UART3_TX FM_L UART3_RX SLEEP_CLK ENBY0042501 AXT580124 80PIN,0.40mm,FEMALE,SMD LGE Internal Use Only - 164 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 164 NC132 AE14 NC24 NC133 NC25 NC134 AG13 NC26 NC135 NC27 NC136 NC28 NC137 NC29 NC138 AH11 NC30 NC139 Copyright © 2010 LG Electronics. Inc. All right reserved. - 165 - LGE Internal Use Only Only for training and service purposes...
Page 165 FM_ANT M6_GND EAR_R M1_R M4D-DETECT M3_DETECT EAR_L M4_L HS_MIC M5_MIC REV.E EAR_SENSE STATE LOW(DEFAULT) UNMATING REV.E HIGH MATING LGE Internal Use Only - 166 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 168: Bga Pin Map
8. BGA PIN MAP BGA Pin Map BGA Pin Map 8. BGA PIN MAP QSD8650 (top view) : NC pin - 169 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 172: Pcb Layout
U104 : GSM TX Module - No Network CN401 : Battery Conn - No boot - No service LG-E900_MAIN_SPFY0231701-1.0_TOP Copyright © 2010 LG Electronics. Inc. All right reserved. - 173 - LGE Internal Use Only Only for training and service purposes...
Page 173 R437 C252 C312 C264 C277 C317 R436 C372 C253 C314 D251 C346 C442 ZD251 C401 C318 C404 LG-E900_MAIN_SPFY0231701-1.0_BOT LGE Internal Use Only - 174 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 174 J701 : SIM Socket - No SIM Operation U703 : eMMC Memory - No boot - No service LG-E900_RF_SUB_SPCY0249801_1.0-TOP Copyright © 2010 LG Electronics. Inc. All right reserved. - 175 - LGE Internal Use Only Only for training and service purposes...
Page 176 9. PCB LAYOUT R1002 C1002 C1005 LG-E900_RF_KEY_SPCY0239301_1.0_TOP Copyright © 2010 LG Electronics. Inc. All right reserved. - 177 - LGE Internal Use Only Only for training and service purposes...
Page 178: Rf Calibration
10. RF CALIBRATION 10. RF CALIBRATION 10.1 Configuration of Tachyon 10.1.1 Configuration of directory LG-E900/ LG-E900 LG-E900 LG-E900 LG-E900 LG-E900 - 179 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 179 It consists of default values. ‘MODEL NAME’_NV.INI It is written when ‘cal&auto’ is begun. ‘MODEL NAME’_Sequence.XML It is described a testing procedures. - 180 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 180: How To Use Tachyon
Follow the procedure before start calibration & auto test a. Click the icon, in tool bar. Then, you can see the below screen. - 181 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 181 Select the buyer (must be double clicked) Then, you can see “PASS” in Config File Check. e. Click select button - 182 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 182 - Test command send. 2) Calibration ) Auto test 4) After action - Phone reset - Change UE to AMSS - 18 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 184: Exploded View & Replacement Part List
Button MBJZ02 ACKA02 Can Assembly,Shield GMEY01 Screw,Machine MDAY01 Decor SVLM00 SUMY00 ACGA00 Cover Assembly,Battery SBPL00 Rechargeable Battery,Lithium Ion Copyright © 2010 LG Electronics. Inc. All right reserved. - 185 - LGE Internal Use Only Only for training and service purposes...
Page 186: Replacementparts
ACQ063300 CoverAssembly,Rear ACGM0174801 24 LG-E900ORFBK:Black- ACW000000 DecorAssembly ADBY0022201 4 LG-E900TMOZYBK:Black- MCR000000 Decor MDAY0086901 COMPLEXLG-E900TMOZYTN:TITANIUMPRESS,Al,,,,, MCR000001 Decor MDAY0087001 COMPLEXLG-E900TMOZYZZ:WithoutColorPRESS,STS,,,,, - 187 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 187 MJN061101 Tape,Protect MTAB0449201 E900TMOZYZZ:WithoutColorCOMPLEX,(empty),,,,, COMPLEXLG- MJN089300 Tape,Window MTAD0139201 E900TMOZYZZ:WithoutColorCOMPLEX,(empty),,,,, COMPLEXLG- MKC009400 Window,Camera MWAE0065701 E900TMOZYTR:TransparentCUTTING,TemperedGlass,,,,, ACQ003400 CoverAssembly,Bar ACGV0026601 9 LG-E900TMOZYBK:BlackCOVERASSY,BAR - 188 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 188 FAB010000 Screw,Machine GMEY0010601 KUMGANGSCREWCO.,LTD MBG000000 Button MBJZ0039401 COMPLEXLG-E900TMOZYWA:WhiteCOMPLEX,(empty), COMPLEXLG- MCQ000000 Damper MPBZ0313001 E900TMOZYBK:BlackMOLD,UrethaneRubberS185A, COMPLEXLG- MJN000000 Tape MTAZ0378101 E900TMOZYZZ:WithoutColorCOMPLEX,(empty),,,,, - 189 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 189 MCIZ0008501 ANT702 T310VIVBKZZ:WithoutColorPRESS,BeCu,,3.5,2.0,1.5, GMEY0014301BH+1.4mM3.5mMMSWRNIPLTN- FAB010000 Screw,Machine GMEY0014301 KUMGANGSCREWCO.,LTD COMPLEXLG-E900TMOZYBK:BlackMOLD,PCLUPOYSC- MCR000000 Decor MDAY0082001 1004A, COMPLEXGU280OREBKZZ:WithoutColorCOMPLEX,(empty) MEZ002100 Label,Approval MLAA0062316 ,,,,, - 190 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 190 C911,C913, ECZH0000813 Chip 55TO+125C1005R/TP-TDKKOREACOOPERATION C914 C906,C908, Capacitor,Ceramic, C1005C0G1H330JT000F33pF5%50VNP0- ECZH0000830 C909 Chip 55TO+125C1005R/TP-TDKKOREACOOPERATION Capacitor,Ceramic, C1005X5R1A105KT000F1uF10%10VX5R- C907 ECZH0001215 Chip 55TO+85C1005R/TP-TDKKOREACOOPERATION - 191 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 191 Capacitor,Ceramic, MCH155CN102KK1nF10%50VX7R-55TO+125C1005R/TP- ECCH0000143 C477,C478 Chip ROHMSemiconductorKOREACORPORATION Capacitor,Ceramic, MCH153CN103KK10nF10%16VX7R-55TO+125C1005R/TP- C439 ECCH0000155 Chip ROHMSemiconductorKOREACORPORATION Capacitor,Ceramic, C1005X5R473KDT47nF10%10VX5R-55TO+85C1005R/TP- C521,C522 ECCH0000163 Chip NEOTECHCO.,LTD - 192 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 192 55TO+85C0603R/TP-TDKCORPORATION C453,C454, C455,C456, C457,C458, C459,C464, C467,C469, C470,C506, C519,C520, C551,C552, Capacitor,Ceramic, C0603X5R0J104KT00NN0.1uF10%6.3VX5R- ECCH0009101 C553,C554, Chip 55TO+85C0603R/TP-TDKCORPORATION C555,C556, C557,C558, C561 - 19 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 193 C437 ECTH0006701 55TO+85C8OHM1.6x0.8x0.9NONESMDR/TPVISHAYINTER TECHNOLOGYASIAPTELTD Capacitor,Ceramic, C1005C0G1H330JT000F33pF5%50VNP0- C462,C465 ECZH0000830 Chip 55TO+125C1005R/TP-TDKKOREACOOPERATION C445,C517, Capacitor,Ceramic, C1005X5R1A105KT000F1uF10%10VX5R- C518,C536, ECZH0001215 Chip 55TO+85C1005R/TP-TDKKOREACOOPERATION C537 - 194 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 194 Q400 EQFP0008601 3.9A0.07OHM1.3WTSOP6R/TP8PONSEMICONDUCTOR MCR01MZP5F49R949.9OHM1%1/16W1005R/TP- R265 Resistor,Chip ERHY0000104 ROHMSemiconductorKOREACORPORATION MCR01MZP5F51R051OHM1%1/16W1005R/TP- R427 Resistor,Chip ERHY0000105 ROHMSemiconductorKOREACORPORATION RC1005F394CS390KOHM1%1/16W1005R/TP- R611 Resistor,Chip ERHY0000166 SAMSUNGELECTRO-MECHANICSCO.,LTD. - 195 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 195 Resistor,Chip ERHY0025201 MCR01MZP5F604260400ohm,1/16W,F,1005,R/TPROHM. RC1005F9092CS90900ohm,1/16W,F,1005,R/TPSAMSUNG R437 Resistor,Chip ERHY0025301 ELECTRO-MECHANICSCO.,LTD. MCR01MZP5F1503150KOHM1%1/16W1005R/TP- R431 Resistor,Chip ERHZ0000222 ROHMSemiconductorKOREACORPORATION MCR01MZP5F1803180KOHM1%1/16W1005R/TP- R612 Resistor,Chip ERHZ0000231 ROHMSemiconductorKOREACORPORATION - 196 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 196 EUSY0342405 SCGHONGKONGSARLTD. U504 IC,AccelerationSensor EUSY0345201 BMA150BMA150,3*3QFN,10PIN,R/TP,3xisAccelerometer IC,LDOVoltageRegulat RP104K121DRP104K121D,PLP1010- U501 EUSY0354001 4,4PIN,R/TP,1x1LDO,1.2V,150mARICOHCOMPANY,LTD. QSD8650QSD8650,CSP,10,R/TP603PIN,QSD8650,HSPA,G IC,DigitalBasebandPro U251 EUSY0371501 SM,EDGE,1xEVDORelB,GPS,XGA,12M,WVGA30fps,IC,Digit cessor,CDMA alBasebandProcessorQUALCOMMINCORPORATED. - 197 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 197 Capacitor,Ceramic, MCH155C150J15pF5%50VNP0-55TO+125C1005R/TP- C508 ECCH0000112 Chip ROHMSemiconductorKOREACORPORATION Capacitor,Ceramic, MCH155A180J18pF5%50VNP0-55TO+125C1005R/TP- C162 ECCH0000113 Chip ROHMSemiconductorKOREACORPORATION Capacitor,Ceramic, MCH155A470JK47pF5%50VNP0-55TO+125C1005R/TP- C155 ECCH0000122 Chip ROHMSemiconductorKOREACORPORATION - 198 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 198 GRM0335C1E680J68pF5%25VX7R-55TO+125C0603R/TP- C197,C202 ECCH0009206 (MLCC) MURATAMANUFACTURINGCO.,LTD. C177,C183, Capacitor,Ceramic, GRM0335C1E220J22pF5%25VX7R-55TO+125C0603R/TP- ECCH0009216 C186,C196 Chip MURATAMANUFACTURINGCO.,LTD. Capacitor,Ceramic, GRM0335C1E390J39pF5%25VX7R-55TO+125C0603R/TP- C182 ECCH0009226 Chip MURATAMANUFACTURINGCO.,LTD. - 199 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 199 C179 ECZH0025916 Chip MURATAMANUFACTURINGCO.,LTD. C171,C173, C176,C178, Capacitor,Ceramic, GRM033R71C102K1nF10%16VX7R-55TO+125C1608R/TP- ECZH0025920 C193,C204, Chip MURATAMANUFACTURINGCO.,LTD. C341 VSMF05LCC5V6V12V2A25WSOT- D504 Diode,TVS EDTY0009801 963R/TP6P5PROTEKDEVICESINC. - 200 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 200 Inductor,Multilayer, 1005GC2T6N8J001005GC2T6N8J00,6.8nH,J,1005,R/TP,PIL C231 ELCH0004713 Chip KORELECTRONICSLTD. Inductor,Multilayer, 1005GC2T18NJ0018NH5%0V200mA0.65OHM1.6GHZ8NO L115 ELCH0004714 Chip NSHIELD11.0X0.5X0.5MMR/TPPILKORELECTRONICSLTD. Inductor,Multilayer, 1005GC2T27NJ0027NH5%0V200mA0.9OHM1.4GHZ8NON L110 ELCH0004715 Chip SHIELD11.0X0.5X0.5MMR/TPPILKORELECTRONICSLTD. - 201 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 201 Resistor,Chip ERHY0009503 ROHMSemiconductorKOREACORPORATION MCR006YZPJ1021KOHM5%1/20W0603R/TP- R107,R115 Resistor,Chip ERHY0009504 ROHMSemiconductorKOREACORPORATION MCR006YZPJ10310KOHM5%1/20W0603R/TP- R128,R513 Resistor,Chip ERHY0009505 ROHMSemiconductorKOREACORPORATION MCR006YZPJ2222.2KOHM5%1/20W0603R/TP- R105 Resistor,Chip ERHY0009516 ROHMSemiconductorKOREACORPORATION - 202 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 202 IC,Tx/Rx EUSY0344001 QUALCOMMINCORPORATED. BGA711L7-0.3~3.62.7-3.0NA0W0WNA0TSLPR/TP7P- U100 IC,RFAmplifier EUSY0365401 INFINEONTECHNOLOGIES(ASIAPACIFIC)PTELTD. AAT2862AAT2862,TQFN34,24,R/TP,3x4x0.8AdvancedAnalo U508 IC,SubPMIC EUSY0378001 gicTechnologiesHKLimited AK8973B2.5Vto3.3NONER/TP15P- U502 Sensor,Temperature EUSY0385501 ASAHIKASEIELECTRONICSCO.,LTD. - 20 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 203 FL105 Filter,Saw SFSY0028101 ANUFACTURINGCO.,LTD. SAFEB2G14FB0F00---- FL104 Filter,Saw SFSY0028201 2PMURATAMANUFACTURINGCO.,LTD. SAFEB881MFL0F55881.5MHz1.4*1.1*0.6SMDR/TP5PMUR FL109 Filter,Saw SFSY0030003 ATAMANUFACTURINGCO.,LTD. FL116 Filter,Saw SFSY0033404 B94441575.42MHz1.4*1.1*0.45SMDR/TP5PEPCOSPTELTD. - 204 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 204 SAJE0044701 2 LG-E900SUBB PCBAssembly,Sub, SAJC00 SAJC0044001 LG-E900SUBC SMTBottom KJA-PH-0-01761P4PANGLER/TP4mMBLACK6P- J801 Jack,Phone ENJE0007601 KSDCO.,LTD PCBAssembly,Sub, SAJD00 SAJD0046201 53 LG-E900SUBC SMTTop - 205 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 205 GRM36X7R104K10PT100nF10%10VX7R- Capacitor,Ceramic, C734 ECZH0003103 55TO+125C1005R/TP- Chip MURATAMANUFACTURINGCO.,LTD. LXCL- LD701 LED,Chip EDLM0009501 PWF4WHITE2.8~4.6150mA28~59cdNA1W2016R/TP2P- LUMILEDSLIGHTINGU.S.,LLC SDB310Q340mV30V200mA1A0SEC150mWEMD2R/TP2P1 D806 Diode,Switching EDSY0011901 AUKCORP - 206 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 206 ROHMSemiconductorKOREACORPORATION MCR01MZP5J104100KOHM5%1/16W1005R/TP- R701 Resistor,Chip ERHZ0000406 ROHMSemiconductorKOREACORPORATION MCR01MZP5J15315KOHM5%1/16W1005R/TP- R719 Resistor,Chip ERHZ0000422 ROHMSemiconductorKOREACORPORATION R720,R721, MCR01MZP5J4724.7KOHM5%1/16W1005R/TP- R819,R820, Resistor,Chip ERHZ0000485 ROHMSemiconductorKOREACORPORATION R821 - 207 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
Page 207 BLM15HD182SN118001.0x0.5x0.5MMSMDR/TP2PMURATA FB804, Filter,Bead SFBH0008102 MANUFACTURINGCO.,LTD. FB805 SWB- U702 Module,WLAN SMZY0025001 B252.3VTO5.5VLGA62P9.0x7.8x1.2MMSAMSUNGELECTR O-MECHANICSCO.,LTD. SPCY0249801LG- EAX010700 PCB,Flexible SPCY0249801 E900TMOZY,FLEXIBLE,D,POLYI,0.5mm,MULTI- 6LGInnotek.com - 208 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
Page 208: Accessory
SGDY0017902 LG0038,1.2M,BLACK,ningbobroadtelecommunicationco.,ltd HC-MYD- EAB010200 Earphone,Stereo SGEY0007610 LG1043mW16OHM99DB65HZTO112HZ1.13MBLACK3.5LT YPESTEREO4POLEPLUG-I-SOUNDCO,LTD STA-U13ER90Vac~264Vac5.1V1A5060CENONENONE- EAY060000 Adapters SSAD0034701 SUNLINELECTRONICSCO.,LTD STA-U13EV90Vac~264Vac5.1V1A5060CENONENONE- EAY060000 Adapters *S*SSAD0034702 PowerSystemsTechnologiesFarEastLtd - 209 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

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Lg-e900

LG E900 Service Manual

1 Introduction

2 Performance

3 Technical Brief

4 Trouble Shooting

5 Download

6 Block Diagram

7 Circuit Diagram

8 BGA Pin Map

9 Pcb Layout

10 Rf Calibration

11 Exploded View & Replacement Part List

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