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LG AT&T GR500 Service Manual
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LG AT&T GR500 Service Manual

LG AT&T GR500 Service Manual

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Internal Use Only
Service Manual
GR500
Date: March, 2009 / Issue 1.0

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Summary of Contents for LG AT&T GR500

  • Page 1 Internal Use Only Service Manual GR500 Date: March, 2009 / Issue 1.0...

  • Page 2: Table Of Contents

    4.15 RF Component ............121 4.16 Procedure to check ..........122 4.17 Checking Common Power Source Block ....123 4.18 Checking VCXO Block ..........128 Copyright © 2009 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use Only Only for training and service purposes...

  • Page 3: Only For Training And Service Purposes

    LGE Internal Use Only - 4 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 4: Introduction

    LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes Copyright © 2009 LG Electronics. Inc. All right reserved.

  • Page 5: Only For Training And Service Purposes

    • When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only - 6 - Copyright ©...

  • Page 6: System Specification

    Ion Battery USB cable Bundle S/W and Set up Wizard CD Hand strap Second 950mAh Li-ion Battery Optional Accessory Bluetooth Stereo Headset Copyright © 2009 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...

  • Page 7: Usable Environment

    1G ~ 1.71GHz -50dBm 1.71G ~ 1.785GHz -56dBm 1.71G ~ 1.785GHz -56dBm 1.785G ~ 12.75GHz -50dBm 1.785G ~ 12.75GHz -50dBm LGE Internal Use Only - 8 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 8: Only For Training And Service Purposes

    400kHz -22dB Due to 600kHz -21dB 600kHz -24dB Switching 1200kHz -21dB 1200kHz -24dB transient 1800kHz -24dB 1800kHz -27dB Copyright © 2009 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...

  • Page 9: Only For Training And Service Purposes

    ±4 ±3 ±4 ±5 ±4 ±5 ±4 ±5 ±4 ±5 ±5 ±5 Burst timing Mask IN Mask IN LGE Internal Use Only - 10 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 10: Only For Training And Service Purposes

    ±3dB(after 14slots transmission gap) Occupied Bandwidth(OBW) 5MHz(99%) -35-15*(?f-2.5)dBc@?f=2.5~3.5MHz, 30k -35-1*(?f-3.5)dBc@?f=3.5~7.5MHz, 1M Spectrum emission Mask -39-10*(?f-7.5)dBc@?f=7.5~8.5MHz, 1M -49 dBc@?f=8.5~12.5MHz, 1M Copyright © 2009 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...

  • Page 11: Only For Training And Service Purposes

    Wanted Signal: -101dBm Wanted Signal: -101dBm (TCH/FS Class II, RBER) Unwanted Signal: Depend on freq. Unwanted Signal: Depend on freq. LGE Internal Use Only - 12 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 12: Only For Training And Service Purposes

    -46dBm CW@10MHz & -46dBm/3.84MHz@20MHz Intermodulation Characteristic UE@+20dBm output power(class3) -57dBm@f=9KHz~1GHz, 100k BW -47dBm@f=1~12.75GHz, 1M Spurious Emissions -60dBm@f=1920~1980MHz, 3.84MHz -60dBm@f=2110~2170MHz, 3.84MHz Copyright © 2009 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...

  • Page 13: Only For Training And Service Purposes

    30MHz~1GHz -36dBm -57dBm Out of Band Spurious Emissions Above 1GHz~12.75GHz -30dBm -47dBm 1.8~1.9GHz -47dBm -47dBm 5.15~5.3GHz -47dBm -47dBm LGE Internal Use Only - 14 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 14: Only For Training And Service Purposes

    Intermodluation Performance static sinwave signal at f1=-39dBm a BT modulated signal f2=-39dBm(payload PRBS15) BER ≤ 0.1%@-20dBm Maximum Input Level Copyright © 2009 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...

  • Page 15: Current Consumption

    ± Bar 2 → 1 3.73 0.05V ± Bar 1 → Blink 3.64 0.05V ± Power Off 0.05V LGE Internal Use Only - 16 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 16: Sound Pressure Level

    -62dBm under Acoustic(Max Vol.) SEND MS/HEADSET SLR: 8±3dB REV. MS/HEADSET RLR: -13±1dB/-15dB Headset SEND (SLR/RLR: mid-Value Setting) REV. Copyright © 2009 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...

  • Page 17: Charging

    (GSM: It should be kept 3.7V in all power level WCDMA: It will not be kept 3.7V in some power level) LGE Internal Use Only - 18 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 18: Technical Brief

    - External Memory Interface that supports NAND, NOR, PSRAM, SDRAM, - JTAG - RTC - ETM (in Prototype Package) Copyright © 2009 LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes...

  • Page 19: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Figure 3-1-1 GR500R Block Diagram LGE Internal Use Only - 20 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 20: Only For Training And Service Purposes

    Figure 3- 1- 2. External Memory Configuration of GR500 Package - 10.5 by 13 mm 107 balls, 0.8mm pitch FBGA Production Package Copyright © 2009 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only Only for training and service purposes...

  • Page 21: Only For Training And Service Purposes

    3. TECHNICAL BRIEF 3.1.3 Hardware Architecture A. Block Diagram Figure 1 Access Architecture Figure 3-1-3. Access system of Ericsson DB3200 LGE Internal Use Only - 22 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 22: Only For Training And Service Purposes

    PSRAM/NOR/NAND AA Interface HW Data Com HW Figure 2 Application Architecture Figure 3-1-4. Application system of Ericsson DB3200 Copyright © 2009 LG Electronics. Inc. All right reserved. - 23 - LGE Internal Use Only Only for training and service purposes...

  • Page 23: Only For Training And Service Purposes

    Camera module. The visual data could be graphics, still images, or video. The XGAM subsystem is handled and provided by Ericsson. LGE Internal Use Only - 24 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 24: Only For Training And Service Purposes

    RF_WCDMA_PA_0_EN RF_WCDMA_PA_1_EN RF_WCDMA_DCDC_EN RF_WCDMA_PWRDET_E RF_WCDMA_PA_0_EN RF_WCDMA_PA_1_EN WTX_BAND_2_EN RF_WCDMA_DCDC_EN WTX_BAND_5_EN RF_WCDMA_PWRDET_E WPOW_DET_EN Figure 3-1-6. Schematic of WCDMA RF Interface Copyright © 2009 LG Electronics. Inc. All right reserved. - 25 - LGE Internal Use Only Only for training and service purposes...

  • Page 25: Only For Training And Service Purposes

    ACC Transmit Data UART1 APP_GPIO_0 APP_UART_RX APP Receive Data APP_GPIO_1 APP_UART_TX APP Transmit Data Table 3-1-3. UART Interface LGE Internal Use Only - 26 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 26: Only For Training And Service Purposes

    ACC_GP_SPI_BT_IRQ Input Input Input Input N.C. Input N.C. Input N.C. Input Table 3-1-4. DB3200 ACC GPIO Map Table Copyright © 2009 LG Electronics. Inc. All right reserved. - 27 - LGE Internal Use Only Only for training and service purposes...

  • Page 27: Only For Training And Service Purposes

    Output APP_GP_KEYENCODE_INT Input APP_GP_GPS_PON Output APP_GP_VGA_SDN Output APP_GP_MOTORLDO_EN Output APP_GP_LCDBL_CTRL Output Table 3-1-5. DB3200 APP GPIO Map Table LGE Internal Use Only - 28 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 28: Only For Training And Service Purposes

    USB_CS_PD USB chip select VBUS Power supply for DB3200 USB block Table 3-1-6. USB Signal Interface of DB3200 Copyright © 2009 LG Electronics. Inc. All right reserved. - 29 - LGE Internal Use Only Only for training and service purposes...

  • Page 29: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Table 3-1-8. Schematic of DB3200 USB block Table 3-1-9. Schematic of USB Transceiver LGE Internal Use Only - 30 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 30: Only For Training And Service Purposes

    If a magnet is close to the hall-effect switch U604, the voltage at Pin 1 of U604 goes to 0V. Otherwise 1.8V. This SLIDE_DET signal is delivered to DB3200 ACC_GP_FLIPSENSE. Figure 3-1-9. Slider On/Off Detector Copyright © 2009 LG Electronics. Inc. All right reserved. - 31 - LGE Internal Use Only Only for training and service purposes...

  • Page 31: Only For Training And Service Purposes

    The clock is used in different Bluetooth modes, like sniff and park, to have a correct timing on the Bluetooth air interface without having the master clock running. LGE Internal Use Only - 32 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 32: Only For Training And Service Purposes

    ■ On-chip RAM, on-chip ROM ■ Supports 1.65 V to 2.85 V I/O systems ■ Auto calibration (VCO, Filters) Copyright © 2009 LG Electronics. Inc. All right reserved. - 33 - LGE Internal Use Only Only for training and service purposes...

  • Page 33: Only For Training And Service Purposes

    - HCI interface between DB3200 and STLC2500D - Audio signal interface between DB3200/AB3100 and STLC2500D - 2.4GHz, 50 ohm matching LGE Internal Use Only - 34 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 34: Only For Training And Service Purposes

    - If card is removed, pin changes high. MICROSD_DAT3 Figure 3-1-11. MicroSD card and Schematic of MicroSD card Interface Copyright © 2009 LG Electronics. Inc. All right reserved. - 35 - LGE Internal Use Only Only for training and service purposes...

  • Page 35: Only For Training And Service Purposes

    Power for DB3200 Press END key PWRRST_n PWRRST RESPOW_N IRQ0_N ONSWA_n IRQ0_n ONSWA Figure 3-1-12. Power On Sequence LGE Internal Use Only - 36 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 36: Only For Training And Service Purposes

    CAMERA KEYIN4 KEYIN5 KEYIN6 Table 3-1-8. Key Matrix Mapping Table Figure 3-1-13. KEY CIRCUIT Figure 3-1-14. QWERTY encoder Copyright © 2009 LG Electronics. Inc. All right reserved. - 37 - LGE Internal Use Only Only for training and service purposes...

  • Page 37: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Figure 3-1-15. Touch driver IC LGE Internal Use Only - 38 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 38: Gam Hardware Subsystem

    GAMCON : GAM controller. GRAPHCON : graphics controller. PDI/SSI : programmable display interface for parallel/serial displays. CDI : camera data interface. Copyright © 2009 LG Electronics. Inc. All right reserved. - 39 - LGE Internal Use Only Only for training and service purposes...

  • Page 39: Only For Training And Service Purposes

    PPI or serial interface such as SSI or I2C. LGE Internal Use Only - 40 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 40: Only For Training And Service Purposes

    In this case, it must have pull-down to ground. Reset signal for the camera module is an output signal. Copyright © 2009 LG Electronics. Inc. All right reserved. - 41 - LGE Internal Use Only...

  • Page 41: Only For Training And Service Purposes

    3.2.3 Camera & Camera Interface Figure 3-2-2. Camera Interface (DB3200 ) Figure 3-2-3. 2M Camera Connector(70Pins – Main Board) LGE Internal Use Only - 42 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 42: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Figure 3-2-5. VGA LCD FPCB Connector Copyright © 2009 LG Electronics. Inc. All right reserved. - 43 - LGE Internal Use Only Only for training and service purposes...

  • Page 43: Only For Training And Service Purposes

    CI_DATA[3] SYSCLK0 CI_PCLK CI_RESn CI_DATA[7] APP_I2C_SCL CI_DATA[6] APP_I2C_SDA CI_DATA[5] VDD_CAM_1V8 CI_DATA[4] Table 3-2-2. Interface between VGA Camera Module LGE Internal Use Only - 44 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 44: Only For Training And Service Purposes

    2M Camera. (2.8V for analog and AF, 1.8V for I/O, 1.5V for digital) Figure 3-2-6. 1.8V and 2.8V Camera Regulator Copyright © 2009 LG Electronics. Inc. All right reserved. - 45 - LGE Internal Use Only Only for training and service purposes...

  • Page 45: Only For Training And Service Purposes

    LCD Module is connected to multi Key PCB with 37-pin Connector in sub PCB. The LCD is controlled by 8-bit PDI(Parallel Data Interface) in DB3200. Table 3-2-4. LCD module Connector LGE Internal Use Only - 46 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 46: Only For Training And Service Purposes

    3. TECHNICAL BRIEF 3.2.6 LCD Module Block diagram Figure 3-2-9. LCD Module Block diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 47 - LGE Internal Use Only Only for training and service purposes...

  • Page 47: Only For Training And Service Purposes

    SWAF07 LD602 R619 MAIN_LED3 SWAF07 LD603 R620 MAIN_LED4 SWAF07 Figure 3-2-11. Keypad Backlight LED Interface and Backlight Circuit LGE Internal Use Only - 48 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 48: Only For Training And Service Purposes

    It allows measurements of acceleration in perpendicular axes as well as absolute temperature measurement. If Motion is detected, then interrupt is issued to CPU and CPU read its motion value by I2C(SMB_SDA,SMB_SCL) interface. Copyright © 2009 LG Electronics. Inc. All right reserved. - 49 - LGE Internal Use Only...

  • Page 49: Audio Part

    The decoder has a receive volume control. The audio inputs and outputs can be switched to normal or auxiliary ports. LGE Internal Use Only - 50 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 50: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Figure 3-3-2. Audio Interface Detailed Diagram(AB3100) Figure 3-3-3 . Audio Section scheme Copyright © 2009 LG Electronics. Inc. All right reserved. - 51 - LGE Internal Use Only Only for training and service purposes...

  • Page 51: Only For Training And Service Purposes

    Video Telephony Mode SPKRP/SPKRN MIDI Only Loud Speaker SPKRP/SPKRN Loud Speaker Mode SPKR/SPKN AUXO1/AUXO2 Headset Mode Table 3-3-1. Audio Mode LGE Internal Use Only - 52 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 52: Only For Training And Service Purposes

    • Loud Speaker / Video Telephony Mode : ABB3100 SPK Amp SPKR/N AUDIO AMP(MAX9877) Speaker(8Ω) • Headset Mode : Auxiliary audio amplifier AUXO1/2 AUDIO AMP(MAX9877) Head Phone Copyright © 2009 LG Electronics. Inc. All right reserved. - 53 - LGE Internal Use Only Only for training and service purposes...

  • Page 53: Only For Training And Service Purposes

    When the headset is inserted, USW_ADC_DET (Circuit Diagram net Name) detected voltage state So, the headset icon is displayed on Main LCD. LGE Internal Use Only - 54 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 54: Only For Training And Service Purposes

    Figure 3-3-7. MP3 Scheme MP3 function supports PCM 44/48KHz sampling rate.The PCM44/48 RX-path is intended to be used as a audio amp and one speaker. Copyright © 2009 LG Electronics. Inc. All right reserved. - 55 - LGE Internal Use Only...

  • Page 55: Only For Training And Service Purposes

    SUSY0024802/SURY0013901 KEYRIN SPU0419HR5H KNOWLES ACOUSTICS Audio AMP MAX9877 MAXIM Ear-Jack SET SGEY0003727 Cresyn Table 3-3-2. Audio Component List LGE Internal Use Only - 56 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 56: Gpadc(General Purpose Adc) And Autoadc2

    MUXb register ends up in the GPRb/GPRlb registers, accordingly. The ADC block can be configured to adjust the measurement cycle in accordance with the status of TXON signal, charger or SLEEP mode. Copyright © 2009 LG Electronics. Inc. All right reserved. - 57 - LGE Internal Use Only...

  • Page 57: Charger Control

    VBAT Current sensing input positive CHSENSEN Analog VBAT Current sensing input negative Table 3-5-1. Charger Control channel spec LGE Internal Use Only - 58 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 58: Only For Training And Service Purposes

    Fuel gauge current sensing input positive FGSENSEN Analog VBAT Fuel gauge current sensing input negative Table 3-5-2. Fuel Gauge channel spec Copyright © 2009 LG Electronics. Inc. All right reserved. - 59 - LGE Internal Use Only Only for training and service purposes...

  • Page 59: Only For Training And Service Purposes

    Fig 3-5-5. Battery Temperature Measurement Name Type Unused Description BDATA Digital Input/Output Unconnected current output Table 3-5-3 BDATA channel spec LGE Internal Use Only - 60 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 60: Only For Training And Service Purposes

    100 ~ 69 (%) 68 ~ 49 (%) 48 ~ 15 (%) 14 ~ 0 (%) Fig. 3-5-7 Battery Block Indication Copyright © 2009 LG Electronics. Inc. All right reserved. - 61 - LGE Internal Use Only Only for training and service purposes...

  • Page 61: Only For Training And Service Purposes

    CCCV algorithm. (Fig.3-5-8) shows the charging voltage(a) and charging current change(b). (a) Charging voltage (b) Charging current Fig. 3-5-8. CCCV charging method LGE Internal Use Only - 62 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 62: Only For Training And Service Purposes

    • Under 0 °C : Extended temperature • From 0 °C to 48 °C : Normal charging temperature • Over 48 °C : Extended temperature Copyright © 2009 LG Electronics. Inc. All right reserved. - 63 - LGE Internal Use Only...

  • Page 63: Voltage Regulation

    It provides power for the 32 kHz oscillator and the real-time clock (RTC). Table. 3-6-1. LDO and Buck LGE Internal Use Only - 64 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 64: Rf Technical Description

    2.75 V VRAD CLKREQ 26MHz X-tal Bias RF Pow det WPOW_DET_EN Figure 3-7-1. Block diagram of RF part Copyright © 2009 LG Electronics. Inc. All right reserved. - 65 - LGE Internal Use Only Only for training and service purposes...

  • Page 65: Only For Training And Service Purposes

    . Power class : Power class 3 (+24dBm) in Band 2 , 5 . Zero-IF Receiver, No IF filter needed . Direct IQ modulation transmitter Figure 3-7-2. WCDMA RF structure LGE Internal Use Only - 66 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 66: Only For Training And Service Purposes

    VccWPA MCLKSec 2.75 V VRAD CLKREQ 26MHz X-tal Bias RF Pow det WPOW_DET_EN Figure 3-7-3. WCDMA Transceiver Architecture Copyright © 2009 LG Electronics. Inc. All right reserved. - 67 - LGE Internal Use Only Only for training and service purposes...

  • Page 67: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Figure 3-7-4. WCDMA Transceiver schematic B. Receiver Part LGE Internal Use Only - 68 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 68: Only For Training And Service Purposes

    3. TECHNICAL BRIEF C. Power Amplifier Module Figure 3-7-5. SKY77175 Functional Block Diagram Figure 3-7-6. WCDMA PAM schematic Copyright © 2009 LG Electronics. Inc. All right reserved. - 69 - LGE Internal Use Only Only for training and service purposes...

  • Page 69: Only For Training And Service Purposes

    - Dual Transfer Mode (DTM) class 9 (3+2=5) - Zero-IF receiver - Polar modulation transmitter Figure 3-7-7. GSM Transceiver Architecture LGE Internal Use Only - 70 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 70: Only For Training And Service Purposes

    3. TECHNICAL BRIEF A. Transmitter Part B. Receiver Part C. Synthesizer Copyright © 2009 LG Electronics. Inc. All right reserved. - 71 - LGE Internal Use Only Only for training and service purposes...

  • Page 71: Only For Training And Service Purposes

    3. TECHNICAL BRIEF 3.7.4. Front-End Module (FEM) Figure 3-7-8. Front-End Module LGE Internal Use Only - 72 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 72: Only For Training And Service Purposes

    UMTS band (band 1 or band 2) antenna switch-through via a dedicated UMTS port. Figure 3-7-9. SKY77519 Functional Block Diagram Figure 3-7-10. Front End part schematic Copyright © 2009 LG Electronics. Inc. All right reserved. - 73 - LGE Internal Use Only Only for training and service purposes...

  • Page 73: Only For Training And Service Purposes

    The control flow for the RF system is shown in Figure 3-7-11. Figure 3-7-11. RF Control Flow LGE Internal Use Only - 74 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 74: Trouble Shooting

    VBACKUP(C512) 2.2V VDD_A VDD_F VBUCK (L500) 1.2V VDD_D VDD_G VDD_K VDD_H Change main board VDD_E < MAIN PCB Bottom> Copyright © 2009 LG Electronics. Inc. All right reserved. - 75 - LGE Internal Use Only Only for training and service purposes...

  • Page 75: Usb Trouble

    VBAT power(C601 or C600) is same to battery? Resolder or change U601 ACC_GP_USB_CS(R603) is 1.8V? Change main board < Main Board – Bottom side > LGE Internal Use Only - 76 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 76: Sim Detect Trouble

    Finish < SOCKET PCB - SIM Connector > Change SIM card SIM works well? Finish Change main board Copyright © 2009 LG Electronics. Inc. All right reserved. - 77 - LGE Internal Use Only Only for training and service purposes...

  • Page 77: Microsd Card Trouble

    MicroSD works well? Finish Check or resolder microSD level shifter(U700) MicroSD works well? Finish Change Main PCB U700 MicroSD socket LGE Internal Use Only - 78 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 78: Keypad Trouble

    Key button works well? Finish Check connetors(70pins, 40pins) Key button works well? Finish Change Key PCB Key PCB CNT Copyright © 2009 LG Electronics. Inc. All right reserved. - 79 - LGE Internal Use Only Only for training and service purposes...

  • Page 79: Touch Screen

    Check Touch driver IC(U703) and level shifter(U702) Touch works well? Finish Touch works well? Change Main PCB Change Touch panel LGE Internal Use Only - 80 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 80 4. TROUBLE SHOOTING U702 U703 Main 70 pin Connector Touch panel CNT FPCB Touch panel Connector Copyright © 2009 LG Electronics. Inc. All right reserved. - 81 - LGE Internal Use Only Only for training and service purposes...

  • Page 81: Camera Trouble

    Change U803, U804 C818 = 1.8V? C815 = 1.5V? Change 2M Camera module 2M Camera Works Change the Main Board LGE Internal Use Only - 82 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 82: Only For Training And Service Purposes

    4. TROUBLE SHOOTING ① CN800 24pin 2M Camera Connector in Main Board Copyright © 2009 LG Electronics. Inc. All right reserved. - 83 - LGE Internal Use Only Only for training and service purposes...

  • Page 83: Only For Training And Service Purposes

    4. TROUBLE SHOOTING ② ② TP18_BB (1.8V) U804 U803 C815 U401 U402 Camera power Regulator in Main Board (Top) LGE Internal Use Only - 84 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 84: Only For Training And Service Purposes

    Change VGA Camera module (socket type) VGA Camera Operation OK? Change the LCD FPCB VGA Camera Works Change the Main Board Copyright © 2009 LG Electronics. Inc. All right reserved. - 85 - LGE Internal Use Only Only for training and service purposes...

  • Page 85: Only For Training And Service Purposes

    20 pin VGA socket S100 Connector ① CN103 Main Board 70 pin BtoB Connector < LCD FPCB > LGE Internal Use Only - 86 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 86: Only For Training And Service Purposes

    4. TROUBLE SHOOTING ② U803 Camera power Regulator in Main Board (Top) Copyright © 2009 LG Electronics. Inc. All right reserved. - 87 - LGE Internal Use Only Only for training and service purposes...

  • Page 87: Main Lcd Trouble

    Change LCD FPCB or SUB KEY PCB Change LCD Module The LCD Works LCD Display OK? Change the Main Board LGE Internal Use Only - 88 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 88: Only For Training And Service Purposes

    40 pin BtoB Connector in SUB KEY FPCB CN100 70 pin BtoB Connector in LCD FPCB CON700 70pin Main LCD FPCB Connector in Main Board Copyright © 2009 LG Electronics. Inc. All right reserved. - 89 - LGE Internal Use Only Only for training and service purposes...

  • Page 89: Keypad Backlight Trouble

    Check VBAT(C104) and ACC_GP_SUBLED_ON(R108) Check FPCB connectors LED ON? Finish LED ON? Change LD100 and LD101 Change Main PCB VBAT ACC_GP_SUBLED_ON LGE Internal Use Only - 90 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 90: Folder On/Off Trouble

    Remove the magnet for testing from U604 ④ Change Main Pin 1 of U604 = 0V board Slide OK? Change Main board Finish Copyright © 2009 LG Electronics. Inc. All right reserved. - 91 - LGE Internal Use Only Only for training and service purposes...

  • Page 91: Only For Training And Service Purposes

    4. TROUBLE SHOOTING ① Be sure that magnet is here ② U604 ③,④ LGE Internal Use Only - 92 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 92: Audio Trouble Shooting

    Note : You ought to check first whether the R, L, Cs along the corresponding paths are soldered well or not before following the trouble shooting guide below. Copyright © 2009 LG Electronics. Inc. All right reserved. - 93 -...

  • Page 93: Only For Training And Service Purposes

    Re-assemble the Receiver contact with the LCD FPCB. Can you hear 1KHz tone Change the Receiver from the receiver ? LGE Internal Use Only - 94 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 94: Only For Training And Service Purposes

    4. TROUBLE SHOOTING (R700, R701) CN700 (Pin 1, 2) LCD FPCB Copyright © 2009 LG Electronics. Inc. All right reserved. - 95 - LGE Internal Use Only Only for training and service purposes...

  • Page 95: Only For Training And Service Purposes

    4. TROUBLE SHOOTING TP2(Pin 1, 2) LGE Internal Use Only - 96 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 96: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Measured 1khz Sine Wave Signal Measured 1khz Sine Wave Signal Copyright © 2009 LG Electronics. Inc. All right reserved. - 97 - LGE Internal Use Only Only for training and service purposes...

  • Page 97: Only For Training And Service Purposes

    Note : You ought to check whether R, L, Cs along the corresponding paths are soldered well or not before following the trouble shooting guide next. LGE Internal Use Only - 98 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 98: Only For Training And Service Purposes

    EAR(+) PAD in LCD FPCB? Can you hear 1KHz tone Change the Receiver from the Speaker ? Copyright © 2009 LG Electronics. Inc. All right reserved. - 99 - LGE Internal Use Only Only for training and service purposes...

  • Page 99: Only For Training And Service Purposes

    4. TROUBLE SHOOTING C549, C550 LGE Internal Use Only - 100 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 100: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Measured 1khz Sine Wave Signals Copyright © 2009 LG Electronics. Inc. All right reserved. - 101 - LGE Internal Use Only Only for training and service purposes...

  • Page 101: Only For Training And Service Purposes

    Signal from the mic – – C526 on main PCB – C524, C525 on main PCB – AB3100 LGE Internal Use Only - 102 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 102: Only For Training And Service Purposes

    If fail again, change the main B’d Change the MIC Change the main B,d Does it work properly ? Copyright © 2009 LG Electronics. Inc. All right reserved. - 103 - LGE Internal Use Only Only for training and service purposes...

  • Page 103: Only For Training And Service Purposes

    4. TROUBLE SHOOTING C106, C108 C526 LGE Internal Use Only - 104 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 104: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Measured Noise (Not Signals) Copyright © 2009 LG Electronics. Inc. All right reserved. - 105 - LGE Internal Use Only Only for training and service purposes...

  • Page 105: Only For Training And Service Purposes

    Headset Can you hear sine wave Change the main B’d out of the receiver ? LGE Internal Use Only - 106 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 106: Only For Training And Service Purposes

    4. TROUBLE SHOOTING R626 R636 U603 CN601 C545, C546 FB302, FB303 Copyright © 2009 LG Electronics. Inc. All right reserved. - 107 - LGE Internal Use Only Only for training and service purposes...

  • Page 107: Only For Training And Service Purposes

    4. TROUBLE SHOOTING LGE Internal Use Only - 108 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 108: Only For Training And Service Purposes

    If not measured any signals again, Change the main B’d Try it again from the start Does it work properly ?? Copyright © 2009 LG Electronics. Inc. All right reserved. - 109 - LGE Internal Use Only Only for training and service purposes...

  • Page 109: Only For Training And Service Purposes

    4. TROUBLE SHOOTING R602 U603 Bottom LGE Internal Use Only - 110 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 110: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Copyright © 2009 LG Electronics. Inc. All right reserved. - 111 - LGE Internal Use Only Only for training and service purposes...

  • Page 111: Charger Trouble Shooting

    - Check the TA connecter - Check the Charging current Path : Red Line( - Check the battery LGE Internal Use Only - 112 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 112: Only For Training And Service Purposes

    < MAIN PCB Bottom> after changing Q500? Change the board Change the board Trouble Shooting - Charging Q500 Copyright © 2009 LG Electronics. Inc. All right reserved. - 113 - LGE Internal Use Only Only for training and service purposes...

  • Page 113: Checking Bluetooth Block

    1. Check PMIC Block BT IC (STLC 2500D) 2.75V 2. Check BT IC Block 1.8V ** BT - Bluetooth LGE Internal Use Only - 114 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 114: Only For Training And Service Purposes

    Oscilloscope 2.75V? About voltage level at C504 Check Check AB3100 (U500) 1.8V? with Oscilloscope Check Next Stage Copyright © 2009 LG Electronics. Inc. All right reserved. - 115 - LGE Internal Use Only Only for training and service purposes...

  • Page 115: Only For Training And Service Purposes

    < BT buff er Block > C311 < BT IC Block > C226, C227 < BT IC Block > LGE Internal Use Only - 116 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 116: Only For Training And Service Purposes

    Change BT IC (U302) t BT IC Output (C311) -2 ~ 2dBm ? with Spectrum Analyzer Check Next Stage Copyright © 2009 LG Electronics. Inc. All right reserved. - 117 - LGE Internal Use Only Only for training and service purposes...

  • Page 117: Checking Agps Block

    ① ② < A-GPS Block > VGPS_2.8V VGPS_1.8V VGPS_CORE ⑤ GPS MODULE < A-GPS Power Block > VDDE_1.8V LGE Internal Use Only - 118 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 118: Only For Training And Service Purposes

    4. TROUBLE SHOOTING 4.14.2 Checking Clocks 1. GPS_PON ② TCXO < A-GPS Clock > 3. CNTIN (26MHz) 2. CLK (19.2MHz) Copyright © 2009 LG Electronics. Inc. All right reserved. - 119 - LGE Internal Use Only Only for training and service purposes...

  • Page 119: Only For Training And Service Purposes

    4. TROUBLE SHOOTING LGE Internal Use Only - 120 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 120: Rf Component

    DCS/ PCS Dual Rx SAW Filter FL104 WCDMA(Band1) Tx SAW Filter FL105 WCDMA(Band5) Tx SAW Filter SW200 RF Test Connector Copyright © 2009 LG Electronics. Inc. All right reserved. - 121 - LGE Internal Use Only Only for training and service purposes...

  • Page 121: Procedure To Check

    Agillent 8960 : Test mode(GSM) Ch. 62, P.L. 7 level setting Ch. 62, -60dBm setting 5. Check GSM Block Redownload SW, Cal LGE Internal Use Only - 122 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 122: Checking Common Power Source Block

    Step 3 WCDMA PAM Block Step 4 Checking VCC Step 1 Power Source Block Figure 4-2. Common Source Block Copyright © 2009 LG Electronics. Inc. All right reserved. - 123 - LGE Internal Use Only Only for training and service purposes...

  • Page 123: Only For Training And Service Purposes

    Open? Change the Board From CN500 to C535 Resolder the terminals of CN500 In Power Source Block LGE Internal Use Only - 124 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 124: Only For Training And Service Purposes

    From C535 to C200 Solder again Check Component (CN500) In Power Source Block Copyright © 2009 LG Electronics. Inc. All right reserved. - 125 - LGE Internal Use Only Only for training and service purposes...

  • Page 125: Only For Training And Service Purposes

    From C535 to C217, C218 Solder again Check Component (CN500) In Power Source Block LGE Internal Use Only - 126 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 126: Only For Training And Service Purposes

    Check Point 1.8V OK? Check the AB3100 LDOE_OUT (C504) Common Input Power is OK See The Next Part Copyright © 2009 LG Electronics. Inc. All right reserved. - 127 - LGE Internal Use Only Only for training and service purposes...

  • Page 127: Checking Vcxo Block

    Figure 4-7. VCXO block Notebook to send TP command Oscilloscope Phone Figure 4-8. Connection for Checking VCXO Block LGE Internal Use Only - 128 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 128: Only For Training And Service Purposes

    Figure 4-9-1. Test Point (Crystal Part) TP05_RF TP07_RF C502 (LDOA_OUT) X100 Figure 4-9-2. Schematic (Crystal Part) Figure 4-9-3. 26MHz at X100 Copyright © 2009 LG Electronics. Inc. All right reserved. - 129 - LGE Internal Use Only Only for training and service purposes...

  • Page 129: Only For Training And Service Purposes

    MCLK MCLK Baseband Baseband (DB3200) (DB3200) Figure 4-10-2. Schematic (26MHz at BB Part) Figure 4-10-3. 26MHz at R114 LGE Internal Use Only - 130 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 130: Only For Training And Service Purposes

    Refer to Figure 4-10 Change XTAL or U105 26MHz at MCLK VCXO part is O.K. Check the next stage Copyright © 2009 LG Electronics. Inc. All right reserved. - 131 - LGE Internal Use Only Only for training and service purposes...

  • Page 131: Checking Front End Module Block

    Figure 4-11-1. Front End Module Block (Bottom and Top) TP09_RF Figure 4-11-2. Schematic (Antenna Switch Module + GSM/EDGE PA) LGE Internal Use Only - 132 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 132: Checking Front End Module Block Input Logic

    Maximum Units -0.3 0.55 Input Logic Level High Vbatt Table 4-2. SKY77521 Logic Control Levels (TXEN, BS1, BS2) Copyright © 2009 LG Electronics. Inc. All right reserved. - 133 - LGE Internal Use Only Only for training and service purposes...
  • Page 133 Resolder it Check ANTSW0(C213) To check Switch input power source Check each mode Change the Board By TP command LGE Internal Use Only - 134 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 134: Checking Wcdma Block

    U101 SW200 6. Check RF switch WCDMA RF RX Level Duplexer Re-download SW, Cal Figure 4-12. WCDMA Block Copyright © 2009 LG Electronics. Inc. All right reserved. - 135 - LGE Internal Use Only Only for training and service purposes...
  • Page 135 First of all, control signals should be checked. (data, clk, strobe) TP10_RF PIN12 (CLK) PIN11 (DATA) PIN10 (STROBE) U103 GSM/WCDMA Transceiver (RF3300) Figure 4-13-1. Test points (Control Signal) LGE Internal Use Only - 136 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 136 Figure 4-13-2. Schematic (Control Signal) Notebook to send TP command Oscilloscope Phone Figure 4-14. Connection for Checking Control Signal Copyright © 2009 LG Electronics. Inc. All right reserved. - 137 - LGE Internal Use Only Only for training and service purposes...
  • Page 137 If signal is not OK even after downloading, Change the U103 Control Signal is O.K. Check next stage LGE Internal Use Only - 138 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 138 Figure 4-16. Test point (RF TX Level) Notebook to send TP command Spectrum Analyzer Phone Fig. 4-17 Connection for Checking RF TX Level Copyright © 2009 LG Electronics. Inc. All right reserved. - 139 - LGE Internal Use Only Only for training and service purposes...
  • Page 139 RF test connector TP13_RF R104 Duplexer Output TP15_RF L100 TP14_RF PAM Output N100 Isolator Output TP16_RF RF3300 R140 PAM Input LGE Internal Use Only - 140 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 140 U103 has any problem. About -6dBm? with probe. Change the U103. The U401 will be not operated. Change the board Copyright © 2009 LG Electronics. Inc. All right reserved. - 141 - LGE Internal Use Only Only for training and service purposes...
  • Page 141 PAM Output (U101) TP20_RF VCC_WPA WCDMA (C103) TP19_RF BIAS_CTRL (C115) Figure 4-18. Test points of WCDMA TX PAM block LGE Internal Use Only - 142 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 142 4. TROUBLE SHOOTING TP19_RF VCC_WPA TP17_RF (C103) PAM Output (L100) BIAS_CTRL (C115) TP18_RF PAM Input (R140) RF3300 Copyright © 2009 LG Electronics. Inc. All right reserved. - 143 - LGE Internal Use Only Only for training and service purposes...
  • Page 143 Check C103 Change 3.2V ? To Check PAM VCC the DC/DC converter from DC/DC converter (VCC_WPA) Change The PAM LGE Internal Use Only - 144 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 144: Checking Gsm Block

    6. Check U200 RF switch RF RX Path GSM/EDGE PAM (+Ant. SW) Re-download SW, Cal Figure 4-19. GSM Block Copyright © 2009 LG Electronics. Inc. All right reserved. - 145 - LGE Internal Use Only Only for training and service purposes...
  • Page 145 Refer to 4.19 Checking Ant. SW Module IF you already check this point while checking Ant. SW module (4.19), You can skip this test. LGE Internal Use Only - 146 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 146: Checking Control Signal

    PIN12 (CLK) PIN11 (DATA) PIN10 (STROBE) U103 GSM/WCDMA Transceiver (RF3300) Figure 4-20. Test points of RF control signals RF3300 Copyright © 2009 LG Electronics. Inc. All right reserved. - 147 - LGE Internal Use Only Only for training and service purposes...
  • Page 147 Refer to Figure 4-15 Short? Similar? Re-download SW Change the board Control signal is OK. See next page to check LGE Internal Use Only - 148 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 148 /DCS/PCS Tx ③ SW200 U200 pin 4 RF connector Vapc Figure 4-22. Test Points of GSM/DCS/PCS Tx Path Copyright © 2009 LG Electronics. Inc. All right reserved. - 149 - LGE Internal Use Only Only for training and service purposes...
  • Page 149 ① ① TP22_RF SW200 RF connector Figure 4-23. RF test connector TP22_RF ① SW200 RF test connector ① LGE Internal Use Only - 150 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 150 Refer to Figure 4-18. Similar? GSM900>32dBm DCS>29dBm PCS>29dBm GSM900/DCS/PCS Tx path OK. See Chapter 4.21.6 to check Rx path Copyright © 2009 LG Electronics. Inc. All right reserved. - 151 - LGE Internal Use Only Only for training and service purposes...
  • Page 151 Check GSM RF GSM900/DCS/PCS Redownload SW Output power at ②. >5dBm See Next page to check Tx path LGE Internal Use Only - 152 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 152 Figure 4-26. Test points of GSM900/DCS/PCS Tx TP24_RF Vapc ③ (U200 pin 4) TP25_RF GSM900/DCS/PCS PAM Output ④ (C205) Copyright © 2009 LG Electronics. Inc. All right reserved. - 153 - LGE Internal Use Only Only for training and service purposes...
  • Page 153 PAM output power at ④. Changing GSM PAM DCS: 29.5.0dBm (U200) GSM Tx path OK. See Next page to check LGE Internal Use Only - 154 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 154 Agilent 8960 Setting CW Mode GSM900 : -50dBm@Ch65(948MHz) DCS : -50dBm@Ch700(1842.8MHz) PCS : -50dBm@Ch700(1967.8MHz) v Oscilloscope Setting Copyright © 2009 LG Electronics. Inc. All right reserved. - 155 - LGE Internal Use Only Only for training and service purposes...
  • Page 155 PCS Rx (L102) DCS Rx (R115) U103 U200 RF3300 GSM/EDGE PA GSM900 Rx (+Ant. SW) (R120) GSM850 Rx (R124) LGE Internal Use Only - 156 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 156 Check GSM900/DCS/PCS Rx signal level at ②. GSM900:-51.5dBm Change Ant. SW module DCS/PCS:-51.7dBm (U200) GSM Rx path OK. Copyright © 2009 LG Electronics. Inc. All right reserved. - 157 - LGE Internal Use Only Only for training and service purposes...

  • Page 157: Download

    Select Model DLL. ③ Download Configuration Setup DLL configuration. ④ DLL Information Show DLL configuration information what is selected. LGE Internal Use Only - 158 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 158 Unchcked, use fixed USB port. You should assign port number with USB Address. ② Image Files Select Image binary files. ③ GDFS File Select GDFS files. Copyright © 2009 LG Electronics. Inc. All right reserved. - 159 - LGE Internal Use Only Only for training and service purposes...
  • Page 159 ④ Check USB Address which is loaded. ⑤ Do 2 again. ⑥ After assign all ports, press save dialog. LGE Internal Use Only - 160 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 160: Block Diagram

    6. Block Diagram 6. Block Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 161 - LGE Internal Use Only Only for training and service purposes...
  • Page 161 LGE Internal Use Only - 162 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 162: Circuit Diagram

    7. CIRCUIT DIAGRAM Copyright © 2009 LG Electronics. Inc. All right reserved. - 163 - LGE Internal Use Only Only for training and service purposes...
  • Page 163 7. CIRCUIT DIAGRAM LGE Internal Use Only - 164 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 164 7. CIRCUIT DIAGRAM Copyright © 2009 LG Electronics. Inc. All right reserved. - 165 - LGE Internal Use Only Only for training and service purposes...
  • Page 165 7. CIRCUIT DIAGRAM LGE Internal Use Only - 166 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 166 7. CIRCUIT DIAGRAM Copyright © 2009 LG Electronics. Inc. All right reserved. - 167 - LGE Internal Use Only Only for training and service purposes...
  • Page 167 7. CIRCUIT DIAGRAM > - LGE Internal Use Only - 168 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 168 7. CIRCUIT DIAGRAM Copyright © 2009 LG Electronics. Inc. All right reserved. - 169 - LGE Internal Use Only Only for training and service purposes...
  • Page 169 7. CIRCUIT DIAGRAM l i a LGE Internal Use Only - 170 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 170: Bga Pin Map

    8. BGA Pin Map 8. BGA Pin Map 1) DBB IC : DB3200 (top view) Copyright © 2009 LG Electronics. Inc. All right reserved. - 171 - LGE Internal Use Only Only for training and service purposes...
  • Page 171 8. BGA Pin Map 2) ABB IC : AB3100 (top view) LGE Internal Use Only - 172 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 172 8. BGA Pin Map 3) Memory IC : KA100J00BA-AJYY (top view) Copyright © 2009 LG Electronics. Inc. All right reserved. - 173 - LGE Internal Use Only Only for training and service purposes...
  • Page 173 8. BGA Pin Map 4) Bluetooth IC : STLC2500D (top view) LGE Internal Use Only - 174 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 174: Pcb Layout

    <Touch Level Shifter IC> Touch Screen operation <Side Key> Lock Up/Camera operation <BT Antenna> BT operation <Mic> Voice input Copyright © 2009 LG Electronics. Inc. All right reserved. - 175 - LGE Internal Use Only Only for training and service purposes...
  • Page 175 <GSM PA + ASM> <Battery Connector> Tx amplifier and antenna Power supply switch operation <WCDMA Duplexer> WCDMA Tx/Rx operation LGE Internal Use Only - 176 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 176 9. PCB LAYOUT <Key LED> Key Backlight LED Copyright © 2009 LG Electronics. Inc. All right reserved. - 177 - LGE Internal Use Only Only for training and service purposes...
  • Page 177 9. PCB LAYOUT <LCD Connector> <Key Connector> LCD Operation VGA, Receiver Operation <LCD Backlight Charge Pump> LCD Backlight Operation LGE Internal Use Only - 178 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 178 <Back Up Battery> RTC Operation <Receiver Pads> Voice Output <VGA Camera Socket> VT Operation <Key Connector > Receiver, VGA Operation Copyright © 2009 LG Electronics. Inc. All right reserved. - 179 - LGE Internal Use Only Only for training and service purposes...
  • Page 179 9. PCB LAYOUT <Touch Window Connector> Touch Window operation <LCD FPCB Connector> LCD, Touch Window, Receiver, VGA, Key operation LGE Internal Use Only - 180 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 180 <Flash FPCB Connector> Flash, Motor, Volume Up/ Down operation <Motor Pads> Motor operation <Flash LED> Camera Flash Operation Copyright © 2009 LG Electronics. Inc. All right reserved. - 181 - LGE Internal Use Only Only for training and service purposes...
  • Page 181 9. PCB LAYOUT <Side Key Pads> Lock Up/Camera Operation LGE Internal Use Only - 182 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 182: Calibration

    10. CALIBRATION 10. CALIBRATION 10.1 General Description This document describes the installation and software usage for the calibration of LG’s GSM/GPRS/EDGE/WCDMA Multimedia Mobile Phone. The calibration menu and it’s result is displayed in PC terminal by Mobile phone. 10.2 Environment 10.2.1 H/W Environment...

  • Page 183: Calibration Environment

    Parameter Typical Unit Temperature Relative Humidity Vbatt Supply current Table 9-1. Nominal Environmental Test Conditions LGE Internal Use Only - 184 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 184: Program Operation

    - Calibration of GSM850, EGSM 900, DCS 1800, PCS1900, and WCDMA2100,850 - Instrument (Agilent8960, Tektronix PS2521G) control - UART communication with mobile phone Figure 10-2. HotKimchi Window Copyright © 2009 LG Electronics. Inc. All right reserved. - 185 - LGE Internal Use Only Only for training and service purposes...
  • Page 185 10. CALIBRATION 10.4.2 SETTING Select a Ezlooks menu. Select “OFF-LINE” in the EZLOOKS Mode. LGE Internal Use Only - 186 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 186 Select a Line System menu. Select “MANUAL” in the RUN MODE. Select “NO” in the MULTI CAL SYSTEM. Copyright © 2009 LG Electronics. Inc. All right reserved. - 187 - LGE Internal Use Only Only for training and service purposes...
  • Page 187 2. AUTO only 3. CAL + AUTO Select UART Port for only S/B1 to communicate with mobile phone. LGE Internal Use Only - 188 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 188: Calibration Procedure

    ※ RF Calibration steps as follow : GSM850 → EGSM → DCS → PCS → WCDMA2100 → WCDMA850 When RF calibration is finished, the result of judgment will be displayed. Copyright © 2009 LG Electronics. Inc. All right reserved. - 189 -...

  • Page 189: Stand-Alone Test

    11. Stand-alone Test 11.1 General Description 1) General Description This document describes the installation and software usage for the stand-alone test of LG’s GSM/GPRS/EDGE/WCDMA Mobile Phone. The test menu and it’s result is displayed in PC terminal by Mobile phone.

  • Page 190: Usb Communication Setting

    - Press the key button of the mobile phone : “8”, “0” and “power key” simultaneously - Check if LG logo disappear after LG logo display for a while - Check if the EMP USB Modem driver is connected on the modem port of your PC - Check the port of “Ericsson Mobile Platform EMPG USB WMC Modem”...

  • Page 191: Program Operation

    - Calibration and Test (Non Signal) tree window - Quick Command mode window Figure 11-3. X-CALMON program window LGE Internal Use Only - 192 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 192 Figure 11-5. That will be shown all calibration items. If you want to calibrate a mobile phone for all calibration items, you should select “RF Calibration” and push “F4” button in your keyboard. Copyright © 2009 LG Electronics. Inc. All right reserved. - 193 -...
  • Page 193 - MAX TARGET : Control and view TX max target output power for the GSM and WCDMA band Figure 11-5. Tap view of calibration window LGE Internal Use Only - 194 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 194: Stand-Alone Test

    - Push “F4” button in you keyboard (Test procedure is executed) Figure 11-6. POT SET Configuration (PC SETTING tab view of calibration window) Copyright © 2009 LG Electronics. Inc. All right reserved. - 195 - LGE Internal Use Only Only for training and service purposes...
  • Page 195 And then you can see the log on the “STATUS” tab view as Figure 11-7. Figure 11-7. Test log window (STAUS tab view of calibration window) LGE Internal Use Only - 196 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 196: Exploded View & Replacement Part List

    12. EXPLODED VIEW & REPLACEMENT PART LIST 12.1 EXPLODED VIEW 50 51 52 53 Copyright © 2009 LG Electronics. Inc. All right reserved. - 197 - LGE Internal Use Only Only for training and service purposes...
  • Page 197 LGE Internal Use Only - 198 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 198 ASS’Y EXPLODED VIEW Copyright © 2009 LG Electronics. Inc. All right reserved. - 199 - LGE Internal Use Only Only for training and service purposes...
  • Page 199 LGE Internal Use Only - 200 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 200 Copyright © 2009 LG Electronics. Inc. All right reserved. - 201 - LGE Internal Use Only Only for training and service purposes...
  • Page 201 LGE Internal Use Only - 202 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 202 Copyright © 2009 LG Electronics. Inc. All right reserved. - 203 - LGE Internal Use Only Only for training and service purposes...
  • Page 203 LGE Internal Use Only - 204 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 204: Replacement Parts

    C2000 USASV DIA 4.0 WHITE WITHOUT MLCE00 LENS,FLASH MLCE0011201 MOLD, PC LUPOY SC-1004A, , , , , L', 51 COLOR Copyright © 2009 LG Electronics. Inc. All right reserved. - 205 - LGE Internal Use Only Only for training and service purposes...
  • Page 205 COMPLEX, (empty), , , , , BLACK WITHOUT MPBU00 PAD,CONNECTOR MPBU0048801 COMPLEX, (empty), , , , , J, 29 COLOR LGE Internal Use Only - 206 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 206 COMPLEX, (empty), , , , , COLOR WITHOUT MTAB01 TAPE,PROTECTION MTAB0305701 COMPLEX, (empty), , , , , COLOR Copyright © 2009 LG Electronics. Inc. All right reserved. - 207 - LGE Internal Use Only Only for training and service purposes...
  • Page 207 MLAZ00 LABEL MLAZ0038301 PID Label 4 Array COLOR MLAK LABEL,MODEL MLAK0006901 PRINTING, (empty), , , , , WHITE LGE Internal Use Only - 208 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 208: Main Component

    37 PIN,0.3 mm,STRAIGHT , , ,; , ,0.30MM ,FFC/FPC CN101 CONNECTOR,FFC/FPC ENQY0014301 ,STRAIGHT ,BOTH ,SMD ,[empty] ,[empty] , Q100 TR,BJT,NPN EQBN0013701 EMT6 ,150 mW,R/TP ,DUAL TRANSISTORS Copyright © 2009 LG Electronics. Inc. All right reserved. - 209 - LGE Internal Use Only Only for training and service purposes...
  • Page 209 2 V,40 mA,10*3.0 ,Quick response 12mm ,; ,3V , , , , , , , SNGF00 ANTENNA,GSM,FIXED SNGF0042002 3.0 ,-2.0 dBd, ,GPS, INTERNAL ,; ,SINGLE ,-2.0 ,50 ,3.0 LGE Internal Use Only - 210 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 210 ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C130 CAP,CHIP,MAKER ECZH0000830 33 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 211 - LGE Internal Use Only Only for training and service purposes...
  • Page 211 ECZH0001216 220 nF,10V ,K ,X5R ,TC ,1005 ,R/TP C309 CAP,CHIP,MAKER ECZH0001216 220 nF,10V ,K ,X5R ,TC ,1005 ,R/TP LGE Internal Use Only - 212 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 212 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C406 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 213 - LGE Internal Use Only Only for training and service purposes...
  • Page 213 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C438 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP LGE Internal Use Only - 214 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 214 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C527 CAP,CERAMIC,CHIP ECCH0000122 47 pF,50V,J,NP0,TC,1005,R/TP C531 CAP,CHIP,MAKER ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 215 - LGE Internal Use Only Only for training and service purposes...
  • Page 215 1 uF,25V ,K ,X5R ,HD ,1608 ,R/TP C604 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP C605 CAP,CERAMIC,CHIP ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP LGE Internal Use Only - 216 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 216 EMD2 ,30 V,1 A,R/TP ,VF=1.5V(IF=200mA) , D401 DIODE,SWITCHING EDSY0011901 IR=30uA(VR=10V) EMD2 ,30 V,1 A,R/TP ,VF=1.5V(IF=200mA) , D500 DIODE,SWITCHING EDSY0011901 IR=30uA(VR=10V) Copyright © 2009 LG Electronics. Inc. All right reserved. - 217 - LGE Internal Use Only Only for training and service purposes...
  • Page 217 SMD ,3 TERMINAL EMI FILTER J700 CONN,SOCKET ENSY0018701 6 PIN,ETC , ,2.54 mm,H=1.8 L100 INDUCTOR,CHIP ELCH0001412 1.8 nH,S ,1005 ,R/TP ,PBFREE LGE Internal Use Only - 218 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 218 51 ohm,1/16W ,J ,1005 ,R/TP PCB ASSY,MAIN,PAD R108 SAFP0000501 SHORT R111 RES,CHIP,MAKER ERHZ0000496 560 ohm,1/16W ,J ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 219 - LGE Internal Use Only Only for training and service purposes...
  • Page 219 SHORT PCB ASSY,MAIN,PAD R205 SAFP0000501 SHORT PCB ASSY,MAIN,PAD R206 SAFO0000501 0OHM_1005_DNI OPEN PCB ASSY,MAIN,PAD R207 SAFO0000501 0OHM_1005_DNI OPEN LGE Internal Use Only - 220 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 220 3300 ohm,1/16W ,F ,1005 ,R/TP R401 RES,CHIP,MAKER ERHZ0000414 120 Kohm,1/16W ,J ,1005 ,R/TP R402 RES,CHIP,MAKER ERHZ0000405 10 Kohm,1/16W ,J ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 221 - LGE Internal Use Only Only for training and service purposes...
  • Page 221 SAFP0000501 SHORT R599 RES,CHIP,MAKER ERHZ0000484 470 ohm,1/16W ,J ,1005 ,R/TP R601 RES,CHIP,MAKER ERHZ0000404 1 Kohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only - 222 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 222 EUSY0357401 7X7 mm. ,; ,IC,CMOS U200 RF MODULE,HANDSET SMRH0004901 MHz, MHz, ,Tx Module(ASM + PAM) - WCDMA TriMode Copyright © 2009 LG Electronics. Inc. All right reserved. - 223 - LGE Internal Use Only Only for training and service purposes...
  • Page 223 14 V, ,SMD ,50pF, 1005 ZD602 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005 ZD800 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005 LGE Internal Use Only - 224 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 224 ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP C819 CAP,CHIP,MAKER ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 225 - LGE Internal Use Only Only for training and service purposes...
  • Page 225 5.1 ohm,1/16W ,J ,1005 ,R/TP R702 RES,CHIP,MAKER ERHZ0000483 47 ohm,1/16W ,J ,1005 ,R/TP R703 RES,CHIP,MAKER ERHZ0000483 47 ohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only - 226 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 226 R834 RES,CHIP,MAKER ERHZ0000465 3300 ohm,1/16W ,J ,1005 ,R/TP PCB ASSY,MAIN,PAD R835 SAFP0000501 SHORT PCB ASSY,MAIN,PAD R836 SAFP0000501 SHORT Copyright © 2009 LG Electronics. Inc. All right reserved. - 227 - LGE Internal Use Only Only for training and service purposes...
  • Page 227 U807 EUSY0334201 LEVEL TRANSLATOR (ZXU type) QFN ,28 ,R/TP ,Keycoder ic, 28pin, 64keys ,; ,IC,Analog U808 EUSY0300004 Multiplexer LGE Internal Use Only - 228 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 228 14 V, ,SMD ,50pF, 1005 SURY00 RECEIVER SURY0013901 Main ,2.8" ,240*400 ,41.7*70.5 ,262K ,TFT ,TM SVLM00 LCD MODULE SVLM0030901 ,ILI9325DS , Copyright © 2009 LG Electronics. Inc. All right reserved. - 229 - LGE Internal Use Only Only for training and service purposes...

  • Page 229: Accessory

    100-240V ,5060 Hz,5.1 V,0.7 A,UL / CSA ,AC-DC ADAPTOR,AC-DC SSAD0031904 ADAPTOR ,; ,90Vac~264Vac ,4.75Vdc~5.25Vdc ,700mA ,5060 , ,WALL 2P ,USB , LGE Internal Use Only - 230 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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