hit counter code
LG GW520 Service Manual
  1. Manuals
  2. Brands
  3. LG Manuals
  4. Cell Phone
  5. GW520
  6. Service manual
LG GW520 Service Manual

LG GW520 Service Manual

Hide thumbs Also See for GW520:
Table of Contents

Advertisement

Quick Links

Download this manual See also: User Manual
Internal Use Only
Service Manual
GW520
Date: July, 2009 / Issue 1.1

Advertisement

Table of Contents
loading

Related Manuals for LG GW520

Summary of Contents for LG GW520

  • Page 1 Internal Use Only Service Manual GW520 Date: July, 2009 / Issue 1.1...

  • Page 2: Table Of Contents

    5. Trouble shooting .......... 69 5.1 Trouble shooting test setup ........69 5.2. Power on trouble ............70 5.3 Charging Trouble ............73 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

    A local telephone company may make changes in its communications facilities or procedure. If these changes could reasonably be expected to affect the use of the GW520 or compatibility with the net work, the telephone company is required to give advanced written notice to the user, allowing the user to take appropriate steps to maintain telephone service.

  • Page 5: Only For Training And Service Purposes

    The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly different. G. Interference and Attenuation GW520 may interfere with sensitive laboratory equipment, medical equipment, etc. Interference from unsuppressed engines or electric motors may cause problems. H. Electrostatic Sensitive Devices...

  • Page 6: Abbreviation

    Power Amplifier Module Printed Circuit Board ◆ PCB Programmable Gain Amplifier ◆ PGA ◆ PLL Phase Locked Loop Copyright © 2009 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...

  • Page 7: Only For Training And Service Purposes

    Voltage Control Temperature Compensated Crystal ◆ VCTCXO Oscillator ◆ WAP Wireless Application Protocol ◆ 8PSK 8 Phase Shift Keying LGE Internal Use Only - 8 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 8: Performance

    2.2 Main Parts : Solution Item Part name Comment Baseband Chip PMB8878 (Infineon) PMIC PMB6821 (Infineon) RF chip PMB6952 (Infineon) Copyright © 2009 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...

  • Page 9: H/W Features

    GPRS compatibility GPRS Class 12 EDGE compatibility EDGE Class 12 Display Main LCD (2.8”, 240 x 400 Pixels)/TFT 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

    V2.1 with A2DP Voice Recording Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Data Cable T-Flash Not Equipped Copyright © 2009 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...

  • Page 11: Hw Spec

    Speech channels AM Suppression GSM : -31dBm - DCS : - -98dBm/-96dBm (2.439%) 29dBm Timing Advance ± 0.5T 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

    < 17.5 %, when Pout ≥ -20 dBm Peak Code Domain Error < -15 dB at Pout -20 dBm 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

    Adjust output(TPC command) Uplink +0.5/1.5 +1/3 +1.5/4 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5 -0.5/-1.5 -1/-3 -1.5/-4 group(10equal command group) +8/+12 +16/+24 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

    (BLER or R), 16QAM Only BLER < 10% or R >= 700kbps BLER < 10% or R >= 700kbps Copyright © 2009 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...

  • Page 15: Only For Training And Service Purposes

    BER ≤ 0.1% Intermodulation Performance(RCV/CA/05/C) BER ≤ 0.1% (min # of samples, 1600000 returned Maximum Input Level(RCV/CA/06/C) payload bits) LGE Internal Use Only - 16 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 16: Bb Circuit Technical Brief

    UART0 USB2.0 FULL QWERTY 6821 Encoder (PMIC) Touch 3-Axis Screen Sensor Main key [Figure 3.1] Functional Block Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...

  • Page 17: Baseband Processor Introduction

    3. BB Circuit Technical brief GW520 service manual 3.2 Baseband Processor Introduction [Figure 3.2] Top level block diagram of S-GOLD®3H(PMB8878) LGE Internal Use Only - 18 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 18: Only For Training And Service Purposes

    - 48k x 16bit Data XRAM - 5k x 16bit Data YRAM - Incremental Redundancy(IR) Memory of 35904 words of 16bit 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

    - GMSK / 8-PSK Modulator according to GSM-standard 05.04 (5/2000) · GMSK Modulator: gauss-filter with B*T=0.3 · EDGE Modulator: 8PSK-modulation with linearized GMSK-Pulse-Filter 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

    - Serial number - A real time clock with alarm functions - 2 capture/compare units with 16 channels. One channel active during sleep mode. Copyright © 2009 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only...

  • Page 21: Only For Training And Service Purposes

    T_OUT3 T_OUT4 FEM control T_OUT5 FEM control T_OUT6 PA_MODE PAM Mode select T_OUT7 ANT_SEL2 T_OUT8 ANT_SEL3 T_OUT9 T_OUT10 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

    Battery temperature measure RF_TEMP RF block temperature measure LCD_ID H/W VERSION H/W version detect VBAT Battery supply voltage measure 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

    GW520 service manual GW520 service manual 3.2.5 GPIO map Over a hundred allowable resources, GW520 is using as follows except dedicated to SIM and Memory. GW520 GPIO(General Purpose Input/Output) Map, describing application, I/O state, and enable level, is shown in below table [Table 3.2.5-1] S-Gold®3H GPIO pin Map...

  • Page 24: Only For Training And Service Purposes

    I2C1_SCL For PMIC & AUDIO AMP I2C1_SCL I2C1_SDA For PMIC & AUDIO AMP I2C1_SDA PM_INT For PMIC PM_INT 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

    I2S1_WA0 Audio I/F REC_N For Receiver EPN1 REC_P For Receiver EPP1 EAR_SPK_P For SPK &Headset EPPA1 Reference EPREF 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

    JTAG1_TDO A_TDI JTAG1_TDI A_TMS JTAG1_TMS A_RTCK JTAG1_RTCK A_TRSTn JTAG1_TRST_n ETM I/F TRIG_IN , 2V62_VIO TRIG_IN 2V62_VIO MON1 MON2 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

    MEM _BC0_n _BC1 MEM _BC1_n LDQS MEM _BC2_n UDQS MEM _BC3_n SD-DATA(0) SDRAM DATA MEM _A[0] SD_DATA(1) MEM _A[1] 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

    MEM _CS3_n MEM _ADV_n _RAS MEM _RAS_n _CAS MEM _CAS_n _WAIT MEM _WAIT_n SDCLKO For Burst mode MEM _SDCLK0 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

    26M Main Clock F26M to 32k crystal TO THE CRYSTAL(32.768khz) F32K to 32k crystal TO THE CRYSTAL(32.768khz) OSC32K _RESET RESET_N LGE Internal Use Only - 30 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 30: Power Management Ic

    • Low-noise LDO regulators for RF devices • Supply for Bluemoon Single, Infineon’s single chip solution for Bluetooth • Audio amplifier 8 Ohms for handsfree operation and ringing Copyright © 2009 LG Electronics. Inc. All right reserved. - 31 - LGE Internal Use Only...

  • Page 31: Only For Training And Service Purposes

    8 Ohm for usage in hands-free phones and for ringing - 450 mW maximum output power - adjustable gain 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

    - Overtemperature Warning - Support of S-GOLD standby power-down concept - Support of S-GOLD Power-Down Pad Tristate Function 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

    3.1V 40mA VVIB 2V8_VAMP 2.8V 140mA AUDIO AMP VAFC 2V65_TOUCH 2.65V Touch VUMTS 2V85_VLCD 2.85V 110mA Three-Axis, LCD 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

    SD2_FB SD1_FBL SD2_FBL [Figure3.3.1-1] SM-Power 3 Circuit Diagram 3.3.2 Charging control - GW520 uses external charging IC which is BQ25040 Charging method : CC-CV Charger output voltage : 4.9 V Charging time : 2h 30m Charging current : 640 mA CV voltage : 4.2 V...

  • Page 35: Only For Training And Service Purposes

    C330 C331 R315 R314 C332 0.1u [Figure 3.3.2-1] Charging IC (BQ25040) [Table 3.3.2-1] PIN description of Charging IC 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

    3. BB Circuit Technical brief GW520 service manual [Figure 3.3.2-1] Block diagram of Charging IC [Figure 3.3.2-2] Charging Profile Copyright © 2009 LG Electronics. Inc. All right reserved. - 37 - LGE Internal Use Only Only for training and service purposes...
  • Page 37 3. BB Circuit Technical brief GW520 service manual [Figure 3.3.2-3] EN/SET Timing Diagram LGE Internal Use Only - 38 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 38: Power On/Off

    If push the END_KEY button, voltage level of PWRON pin is changed from high to low. ON_OFF1 is a power-on input for SM-POWER3 with active low edge. ON_OFF2 is for power off alarm clock. Copyright © 2009 LG Electronics. Inc. All right reserved. - 39 - LGE Internal Use Only...

  • Page 39: Sim Interface

    3. BB Circuit Technical brief GW520 service manual 3.5 SIM Interface GW520 supports 1.8V & 2.9V plug in SIM. SIM_IO, SIM_CLK, SIM_RST ports are used to communicate with S-Gold3H and the SIM power supply enabled by PMIC. SIM Interface SIM_CLK : SIM card reference clock...

  • Page 40: Micro Sd Connector

    3. BB Circuit Technical brief GW520 service manual 3.6 MICRO SD connector The Micro SD Memory Module has eight exposed contacts on one side. The S-Gold3H support two blocks of MMC interface. GW520 designed as first MMC. 2V8_VMME 2V62_VIO MMC_CARD...

  • Page 41: Memory

    GW520 service manual 3.7 Memory 2Gbit NAND Flash & 1Gbit DDR SDRAM employed on GW520 with 16 bit parallel data bus thru ADD(0) ~ ADD(24). The 1Gbit Nand Flash memory with DDR SDRAM stacked device family offers multiple high-performance solutions.

  • Page 42: Lcd Display

    LCD_ID : Hitachi => High MLED1 MLED2 MLED3 MLED4 MLED5 MLED ESD9X5.0ST5G INSTPAR ZD800 04-6293-037-001-829 ENQY0014301 [Figure3.8-1] LCD circuit diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 43 - LGE Internal Use Only Only for training and service purposes...

  • Page 43: Keypad Switching & Scanning

    KEY_COL0 KEY_COL1 KEY_COL2 KEY_COL3 KEY_COL4 KEY_COL5 KEY_COL6 KEY_COL7 ( Low state ) [Figure 3.9-1] Qwerty key circuit diagram LGE Internal Use Only - 44 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 44: Keypad Back-Light Illumination

    R442 QWERTY_KEY_BL LD401 LEWWS44-E R444 LD402 LEWWS44-E R445 LD403 LEWWS44-E [Figure 3.10.1-2] Qwerty key back-light LED circuit diagram 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

    3. BB Circuit Technical brief GW520 service manual 3.10.2 Slide KEY back-light illumination GW520 is control the Tr for nomal KEY back-light illumination. KEY_LED VBAT R806 R807 R811 LD800 LD801 LD802 EDLH0005901 EDLH0005901 LEWW-S14 LEWW-S14 EQBN0007601 KTC4075E Q800 R808 SLIDE_KEY_LED...

  • Page 46: Lcd Back-Light Illumination

    SPIF MLED2 4.7u MLED3 C803 MLED4 MLED5 VA800 ICVL0518100Y500FR C804 C805 Figure 3.11-1] LCD charge pump circuit diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 47 - LGE Internal Use Only Only for training and service purposes...

  • Page 47: Battery Voltage Monitor

    VDDA_M TP103 R102 R103 100K (1%) PAOUT1_1 PA_LEVEL PAOUT1_2 2G_IP BB_I VDDA_BB [Figure3.12-1] Battery voltage monitor circuit diagram LGE Internal Use Only - 48 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 48: Audio

    3 G2 L305 100nH C347 MIC_N 0.1u C350 C351 C352 C349 100p VMIC_GND [Figure 3.13.2-1] Microphone circuit diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 49 - LGE Internal Use Only Only for training and service purposes...

  • Page 49: Only For Training And Service Purposes

    R309 FB303 HSO_R AUD2 300K C324 HB-1M1005-102JT C321 ISET 120p I2C3_SCL I2C3_SDA MUIC_INT [Figure 3.13.3-1] Headset circuit diagram LGE Internal Use Only - 50 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 50: Bluetooth/Fm (Rbca-B561A)

    3.14 Bluetooth/FM (RBCA-B561A) General Description The GW520 device provides the highest level of integration for a mobile wireless system, with integrated Bluetooth 2.1, and FM receiver. The RBCA-B561A is a single module for Bluetooth 2.4GHz systems including enhanced data rates(EDR) to 3Mbits/s.

  • Page 51: Only For Training And Service Purposes

    Operates from 32KHz or reference clock inputs Flexible output interfaces including PCM, I2S, and analog stereo DAC and drivers LGE Internal Use Only - 52 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 52: 5Pin Interface Connector

    Accessory type detect, Headset microphone signal Power GND 6~11 FM_ANT FM radio antenna /// USB/ Remote control interrupt Copyright © 2009 LG Electronics. Inc. All right reserved. - 53 - LGE Internal Use Only Only for training and service purposes...

  • Page 53: Rf Circuit Technical Brief

    PA_EN PA_EN PA_EN PA_MODE PA_MODE PA_MODE PA_MODE PA_MODE PA_MODE PA_MODE PA_MODE [Figure 4.1-1] Block Diagram of RF part 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

    To avoid interference between the 2.5G and 3G transceivers, simultaneous operation of SMARTiPM and SMARTi3G is not permitted. Copyright © 2009 LG Electronics. Inc. All right reserved. - 55 - LGE Internal Use Only...

  • Page 55: Only For Training And Service Purposes

    Integrated 3.8GHz V CO 1.4...1.6V Supply 2.7...2.95V Supply VCO_RC [Figure 4.1-2] RF Functional Block Diagram LGE Internal Use Only - 56 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 56: Only For Training And Service Purposes

    MMC_D0 MMCI1_DAT[0] MMC_CLK MMCI1_CLK EUSY0306201 VDDP_MMC MMC_D1 MMCI1_DAT[1] NC7SZ74L8X MMC_D2 MMCI1_DAT[2] Figure 4.1-3] Schematic of RF Control Signals Copyright © 2009 LG Electronics. Inc. All right reserved. - 57 - LGE Internal Use Only Only for training and service purposes...

  • Page 57: Gsm Part

    DC-offset at baseband-output. A programmable gain correction can be applied to correct for front end- and receiver gain tolerances 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

    In 8PSK mode, the ramping functionality is assured by an on-chip ramping generator, whereas output power is controlled by the PGA’s as described above. Copyright © 2009 LG Electronics. Inc. All right reserved. - 59 -...

  • Page 59: Only For Training And Service Purposes

    Implemented in the SMARTi 3GE are two outputs for direct control of GSM front end modules with two logic input pins to select RX- and TX-mode as well as low- and highband operation. 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

    GPIO[16] ANT_SEL4 GPIO[17] ANT_SEL5 GPIO[18] ANT_SEL6 GPIO[19] [Figure 4.2.5-2] GW520 Front End Control (Control signal from Baseband IC) Copyright © 2009 LG Electronics. Inc. All right reserved. - 61 - LGE Internal Use Only Only for training and service purposes...

  • Page 61: Wcdma Part

    4. RF Circuit Technical Brief GW520 service manual [Figure 4.2.5-3] GW520 Front End Control Logic Table 4.3 WCDMA Part The single-chip transceiver is designed to fulfill the W-CDMA UTRA FDD system requirements for bands I, II, III, IV, V, VI and IX. It contains all active circuits required to simultaneously modulate an analog W-CDMA I/Q signal to the TX RF frequency and demodulate a RX RF W-CDMA signal to an I/Q baseband signal.

  • Page 62: Only For Training And Service Purposes

    The RF output signal is available at the differential outputs TXOUTH,/TXOUTHX, TXOUTM/TXOUTMX, and TXOUTL/TXOUTLX. The modulator supply voltage must also be applied to these open drain differential outputs. Copyright © 2009 LG Electronics. Inc. All right reserved. - 63 - LGE Internal Use Only...

  • Page 63: Only For Training And Service Purposes

    The total VCO frequency range is divided in 256 subranges, in order to limit the VCO slope. Before the settling process of the PLL starts, a successive approximation algorithm selects the most appropriate subrange. LGE Internal Use Only - 64 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 64: Gsm Power Amplifi Er Module

    C558 TQM7M5005 0.01u 0.01u SMPY0017901 [Figure 4.4-1] Schematic Diagram of 2.5G PAM (TQM7M5005) [Table 4.4-1] SKY77340 Pin description Copyright © 2009 LG Electronics. Inc. All right reserved. - 65 - LGE Internal Use Only Only for training and service purposes...

  • Page 65: Wcdma Band1/8 Power Amplifi Er Module

    AWT6321 : BAND2/5 2V85 VRF [Figure 4.5-1] Schematic Diagram of WCDMA Band1/8 PAM (AWT6224R) [Table 4.5-1] AWT6224R Pin description LGE Internal Use Only - 66 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 66: Wcdma Band1/8 Low Noise Amplifi Er

    C606 L528 4.7nH 4.7p [Figure 4.6-1] Schematic Diagram of WCDMA Band1/8 LNA (BGA735) [Table 4.6-1] BGA735L16 Pin description Copyright © 2009 LG Electronics. Inc. All right reserved. - 67 - LGE Internal Use Only Only for training and service purposes...

  • Page 67: Wcdma Band1 Duplexer

    GND3 GND4 LT56B SDMY0002001 BAND8_2520_EPCOS LT56B SDMY0002001 BAND5_2520_EPCOS LT69D SDDY0004901 [Figure 4.8-1] Schematic Diagram of WCDMA Band8 Duplexer LGE Internal Use Only - 68 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 68: Trouble Shooting

    - Connect mobile switch cable between Communication test set and DUT when you need to make a phone call. - Follow trouble shooting procedure Copyright © 2009 LG Electronics. Inc. All right reserved. - 69 - LGE Internal Use Only...

  • Page 69: Power On Trouble

    Change the main board Change the main board Power on is ok? Power on is ok? 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

    R207 RPWRON_DBB Q200 ADI RPWRON(H) EQBN0013701 EMX18 KEY_ROW5 R216 END_KEY R215 R220 R221 END_KEY 100K R222 RPWRON R223 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

    X100 X100 X500 X500 X500 X500 U504 U504 U504 U504 END Key END Key END Key END Key LGE Internal Use Only - 72 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 72: Charging Trouble

    TA? Does Charging work well? Does Charging work well? Change the main board Change the main board 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

    MUIC_DM R305 MUIC_DP R306 MUIC_ID HB-1T1005-221JT ENRY0008101 GU071-5P-SD-E1500 Checking Point Checking Point U302 U302 U302 FL300 FL300 FL300 LGE Internal Use Only - 74 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 74: Usb Trouble

    Change U301 Change U301 Is USB function ok? Is USB function ok? or main board or main board Copyright © 2009 LG Electronics. Inc. All right reserved. - 75 - LGE Internal Use Only Only for training and service purposes...
  • Page 75 HS_MIC_P FB302 HSO_L AUD1 R310 R309 FB303 HSO_R AUD2 300K C324 C321 HB-1M1005-102JT ISET 120p I2C3_SCL I2C3_SDA MUIC_INT LGE Internal Use Only - 76 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 76 U301 U301 U301 TP300 TP300 TP300 TP301 TP301 TP301 C306 C306 C306 R306 R306 R306 R305 R305 R305 Copyright © 2009 LG Electronics. Inc. All right reserved. - 77 - LGE Internal Use Only Only for training and service purposes...

  • Page 77: Sim Detect Trouble

    SIM_CLK SIM_CLK SIM_CLK (R246) (R246) (R246) (C245) (C245) (C245) SIM_RST SIM_RST SIM_RST SIM_IO SIM_IO SIM_IO (C248) (C248) (C248) LGE Internal Use Only - 78 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 78 SIM_CLK GND4 GND1 GND2 GND3 ENSY0018701 5000-6P-1.8SL VVIB VDDSIMVIB VSIM VAFC VRTC VDDUMTS VUMTS FB201 VDDSD1 SD1_FB SD1_FBL Copyright © 2009 LG Electronics. Inc. All right reserved. - 79 - LGE Internal Use Only Only for training and service purposes...
  • Page 79 C245 C245 C246 C246 C246 C248 C248 C248 J200 J200 J200 J200 C223 C223 C223 U200 U200 U200 LGE Internal Use Only - 80 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 80: Qwerty Key Sense Trouble

    KEY_COL5 KEY_ROW4 EUSY0300004 R422 KEY_INT PP2106M2 KEY_ROW5 R425 KEY_I2C_SCL VA401 VA400 EVLC5S0250 EVLC5S0250 VA402 EVLC5S0250 C417 C418 C419 Copyright © 2009 LG Electronics. Inc. All right reserved. - 81 - LGE Internal Use Only Only for training and service purposes...
  • Page 81 Vol_Down Shutter Multi Lock Send KEY_ROW5 KEY_COL0 KEY_COL1 KEY_COL2 KEY_COL3 KEY_COL4 KEY_COL5 KEY_COL6 KEY_COL7 ( Low state ) LGE Internal Use Only - 82 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 82: Slide Key Sense Trouble

    Change the Key PCB Change the Key PCB CN801 CN801 VBAT SEND MULTI SEND MULTI KEY_ROW5 VA806 varistor KEY_COL5 KEY_COL6 END_KEY Copyright © 2009 LG Electronics. Inc. All right reserved. - 83 - LGE Internal Use Only Only for training and service purposes...

  • Page 83: Keypad Backlight Trouble

    Circuit Diagram Circuit Diagram VBAT EDLH0013701 R439 LD400 LEWWS44-E R442 QWERTY_KEY_BL LD401 LEWWS44-E R444 LD402 LEWWS44-E R445 LD403 LEWWS44-E LGE Internal Use Only - 84 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 84 R445 R445 R445 R439 R439 R439 LD402 LD402 LD402 LD403 LD403 LD403 LD400 LD400 LD400 LD401 LD401 LD401 Copyright © 2009 LG Electronics. Inc. All right reserved. - 85 - LGE Internal Use Only Only for training and service purposes...

  • Page 85: Micro Sd Trouble

    MMC_D0 DAT0 MMC_CLK MMC_CMD MMC_D3 CD_DAT3 DUMMY2 MMC_D2 DAT2 MMC_DETECT DETECT_A R231 DETECT_B DUMMY3 C233 104042-001 0.1u ENSY0023501 LGE Internal Use Only - 86 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 86 5. Trouble shooting GW520 service manual Checking Point Checking Point U200 U200 S200 S200 R225 R225 R226 R226 Copyright © 2009 LG Electronics. Inc. All right reserved. - 87 - LGE Internal Use Only Only for training and service purposes...

  • Page 87: Audio Trouble

    5. Trouble shooting GW520 service manual 5.10 Audio Trouble 5.10.1 Receiver path LGE Internal Use Only - 88 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 88 CHECKING Point (Receiver) RECEIVER (SURY0013901) L301 47nH RCV_P_FPCB RCV_P L302 47nH RCV_N_FPCB RCV_N C328 C329 Receiver CN400 CN702 Copyright © 2009 LG Electronics. Inc. All right reserved. - 89 - LGE Internal Use Only Only for training and service purposes...
  • Page 89 5. Trouble shooting GW520 service manual 5.10.2 Voice path for headset and speaker LGE Internal Use Only - 90 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 90 5. Trouble shooting GW520 service manual Copyright © 2009 LG Electronics. Inc. All right reserved. - 91 - LGE Internal Use Only Only for training and service purposes...

  • Page 91: Microphone Trouble

    5. Trouble shooting GW520 service manual 5.11 Microphone Trouble 5.11.1 Microphone for main MIC LGE Internal Use Only - 92 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 92 5. Trouble shooting GW520 service manual 5.11.2 Microphone for headset Copyright © 2009 LG Electronics. Inc. All right reserved. - 93 - LGE Internal Use Only Only for training and service purposes...

  • Page 93: Camera Trouble

    Replace new camera module. Or change the main board Or change the main board Working properly? Working properly? LGE Internal Use Only - 94 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 94 INOUT_A1 CIF_D4 SFEY0015501 SFEY0015501 ICVE10184E050R101FR ICVE10184E050R101FR Check Point Check Point FB306 FB306 FB304 FB304 FB305 FB305 U304 U304 Copyright © 2009 LG Electronics. Inc. All right reserved. - 95 - LGE Internal Use Only Only for training and service purposes...

  • Page 95: Main Lcd Trouble

    Change the slide key PCB Change the slide key PCB LCD work well? LCD work well? Or LCD Or LCD LGE Internal Use Only - 96 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 96 VAFC VRTC VDDUMTS VUMTS U200 U200 U200 FB201 VDDSD1 SD1_FB SD1_FBL U200 CN702 CN700 CN400 CN801 U200 C219 Copyright © 2009 LG Electronics. Inc. All right reserved. - 97 - LGE Internal Use Only Only for training and service purposes...

  • Page 97: Bluetooth Trouble

    6. You can select wanted test cases after getting an optimized power 7. Bluetooth Off - Menu(OK key) setting 4)Connectivity 1)Bluetooth 1)Turn on/Turn off LGE Internal Use Only - 98 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 98 5. Trouble shooting GW520 service manual <CHECKING FLOW CHART> U403 R440 Check the power Check the CLK R446 Copyright © 2009 LG Electronics. Inc. All right reserved. - 99 - LGE Internal Use Only Only for training and service purposes...
  • Page 99 2V62_VIO GND3 GND4 GND5 GND6 GND7 1.8V 32K clock GND8 GND9 GND10 R447 CLK32K CLK32K_1V8 R448 C435 100K LGE Internal Use Only - 100 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 100: Rf Component

    Duplexer Murata FL502/FL504 (WCDMA2100/900) Epcos FL505/FL506 3G RX SAW FILTER Murata X500 VCTCXO(26MHz) Kyocera SW500 RF switch Murata Copyright © 2009 LG Electronics. Inc. All right reserved. - 101 - LGE Internal Use Only Only for training and service purposes...

  • Page 101: Gsm Path

    5. Trouble shooting GW520 service manual 5.16 GSM PATH TX Path RX Path TX/RX Path LOW BAND HIGH BAND LGE Internal Use Only - 102 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 102: Trouble Shooting Of Gsm Part

    (GSM850/EGSM900/ DCS1800/ PCS1900) <CHECKING FLOW CHART> 4.TX part 2. FEM 2. Mobile switch 1. VCTCXO(X500) 3. RX part Copyright © 2009 LG Electronics. Inc. All right reserved. - 103 - LGE Internal Use Only Only for training and service purposes...

  • Page 103: Checking Vctcxo Circuit

    1000p 2G_EN 2G_DATA 2G_CLK 2G_BS 2V85_VRF R513 X500 R514 VCONT C559 C560 C561 0.01u 26MHz 0.1u EXSK0008201 KT3225K26000ECW29ZA0 LGE Internal Use Only - 104 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 104 5. Trouble shooting GW520 service manual 5.17.2 Checking Front-End Module Block Copyright © 2009 LG Electronics. Inc. All right reserved. - 105 - LGE Internal Use Only Only for training and service purposes...
  • Page 105 5. Trouble shooting GW520 service manual LGE Internal Use Only - 106 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 106 900 Rx 900 Rx 1800 Rx 1800 Rx 1900 Rx 1900 Rx UMTS1 UMTS1 UMTS2 UMTS2 UMTS3 UMTS3 Copyright © 2009 LG Electronics. Inc. All right reserved. - 107 - LGE Internal Use Only Only for training and service purposes...
  • Page 107 GSM/DCS/PCS Rx is OK. problem? problem? problem? problem? Re-download & Calibration Re-download & Calibration Re-download & Calibration Re-download & Calibration LGE Internal Use Only - 108 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 108 C536 2.2p GSM1900_RX1 GND1 GSM1900_RX2 C537 1.5p GND3 GND2 UMTS1 L508 GND4 UMTS2 5.1nH GND5 UMTS3 C541 1.5p Copyright © 2009 LG Electronics. Inc. All right reserved. - 109 - LGE Internal Use Only Only for training and service purposes...
  • Page 109 5. Trouble shooting GW520 service manual 5.17.4 Checking GSM Tx part LGE Internal Use Only - 110 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 110 Net name Description PA_LEVEL Power Amp Gain Control. Typically, 0.2 ~1.6V VBAT PAM Supply Voltage (Vcc > 3V) Copyright © 2009 LG Electronics. Inc. All right reserved. - 111 - LGE Internal Use Only Only for training and service purposes...

  • Page 111: Trouble Shooting Of Wcdma Part

    5.18.1 Checking VCTCXO Refer to GSM Part (15.16.1) 5.18.2 Checking Mobile SW & FEM Refer to GSM Part (15.16.2) LGE Internal Use Only - 112 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 112 5. Trouble shooting GW520 service manual 5.18.3 Checking WCDMA Rx part Copyright © 2009 LG Electronics. Inc. All right reserved. - 113 - LGE Internal Use Only Only for training and service purposes...
  • Page 113 FL506 C604 C601 R529 BGA735 SAFEB942MFL0F00 18nH C605 EUSY0365001 C603 2.2p SFSY0024301 BC5 : SAFEB881MFL0F55 BC8 : SAFEB942MFL0F00 LGE Internal Use Only - 114 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 114 5. Trouble shooting Copyright © 2009 LG Electronics. Inc. All right reserved. - 115 - LGE Internal Use Only Only for training and service purposes...
  • Page 115 RFOUTM Band 1 / 2 Change BAND5_2520_EPCOS R528 BC1 : SAFEB2G14FA0F00 RFGNDM1 RFOUTH BC2 : SAFEB1G96FL0F00 LT69D SDDY0004901 LGE Internal Use Only - 116 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 116 PAM Supply Voltage (3.2V < Vcc < 4.2V) 3G_PA_MODE1 High (2.2–3.1V), Low (0.0V–0.5V). PA “on” (2.2–3.1V), PA “shut down” (0.0V–0.5V). Copyright © 2009 LG Electronics. Inc. All right reserved. - 117 - LGE Internal Use Only Only for training and service purposes...

  • Page 117: Download & S/W Upgrade

    6. DOWNLOAD & S/W UPGRADE 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 118 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 118 6. DOWNLOAD & S/W UPGRADE Copyright © 2009 LG Electronics. Inc. All right reserved. - 119 - LGE Internal Use Only Only for training and service purposes...
  • Page 119 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 120 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 120 6. DOWNLOAD & S/W UPGRADE Copyright © 2009 LG Electronics. Inc. All right reserved. - 121 - LGE Internal Use Only Only for training and service purposes...
  • Page 121 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 122 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 122 6. DOWNLOAD & S/W UPGRADE Copyright © 2009 LG Electronics. Inc. All right reserved. - 123 - LGE Internal Use Only Only for training and service purposes...
  • Page 123 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 124 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 124 6. DOWNLOAD & S/W UPGRADE Copyright © 2009 LG Electronics. Inc. All right reserved. - 125 - LGE Internal Use Only Only for training and service purposes...
  • Page 125 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 126 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 126 6. DOWNLOAD & S/W UPGRADE Copyright © 2009 LG Electronics. Inc. All right reserved. - 127 - LGE Internal Use Only Only for training and service purposes...
  • Page 127 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 128 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 128 6. DOWNLOAD & S/W UPGRADE Copyright © 2009 LG Electronics. Inc. All right reserved. - 129 - LGE Internal Use Only Only for training and service purposes...
  • Page 129 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 130 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 130 6. DOWNLOAD & S/W UPGRADE 클릭 Copyright © 2009 LG Electronics. Inc. All right reserved. - 131 - LGE Internal Use Only Only for training and service purposes...
  • Page 131 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 132 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 132 6. DOWNLOAD & S/W UPGRADE Copyright © 2009 LG Electronics. Inc. All right reserved. - 133 - LGE Internal Use Only Only for training and service purposes...
  • Page 133 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 134 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 134 6. DOWNLOAD & S/W UPGRADE Copyright © 2009 LG Electronics. Inc. All right reserved. - 135 - LGE Internal Use Only Only for training and service purposes...
  • Page 135 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 136 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 136 6. DOWNLOAD & S/W UPGRADE 1번 2번 1번 2번 Copyright © 2009 LG Electronics. Inc. All right reserved. - 137 - LGE Internal Use Only Only for training and service purposes...
  • Page 137 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 138 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 138 6. DOWNLOAD & S/W UPGRADE Copyright © 2009 LG Electronics. Inc. All right reserved. - 139 - LGE Internal Use Only Only for training and service purposes...
  • Page 139 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 140 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 140 6. DOWNLOAD & S/W UPGRADE Copyright © 2009 LG Electronics. Inc. All right reserved. - 141 - LGE Internal Use Only Only for training and service purposes...
  • Page 141 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 142 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 142 6. DOWNLOAD & S/W UPGRADE Copyright © 2009 LG Electronics. Inc. All right reserved. - 143 - LGE Internal Use Only Only for training and service purposes...
  • Page 143 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 144 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 144 6. DOWNLOAD & S/W UPGRADE Copyright © 2009 LG Electronics. Inc. All right reserved. - 145 - LGE Internal Use Only Only for training and service purposes...
  • Page 145 6. DOWNLOAD & S/W UPGRADE LGE Internal Use Only - 146 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 146 6. DOWNLOAD & S/W UPGRADE Copyright © 2009 LG Electronics. Inc. All right reserved. - 147 - LGE Internal Use Only Only for training and service purposes...

  • Page 147: Block Diagram

    GW520 service manual 7. BLOCK DIAGRAM 7. BLOCK DIAGRAM LGE Internal Use Only - 148 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 148: Circuit Diagram

    OJ102 OJ103 R124 2.2K TP_RPWRON R125 2.2K TP_DSR TOUCH IC Three-Axis Accel. MUIC QWERTY PMIC OJ104 AUDIO_AMP CAMERA Copyright © 2009 LG Electronics. Inc. All right reserved. - 149 - LGE Internal Use Only Only for training and service purposes...
  • Page 149 TPA6205A1ZQVR GND3 NC7WZ08L8X EUSY0140901 Motor TC7SZ86FU R243 100K ENSY0018701 C247 2200p 5000-6P-1.8SL (SJMY0008510) R244 R232 SMT ( MP) LGE Internal Use Only - 150 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 150 ICVE10184E050R101FR ICVE10184E050R101FR C353 C354 C355 C350 SLIDE_DETECT C349 C351 C352 100p C356 EUSY0313401 EUSY0319001 EM-0781-T5 RT9011-MGPQW 0.1u VMIC_GND Copyright © 2009 LG Electronics. Inc. All right reserved. - 151 - LGE Internal Use Only Only for training and service purposes...
  • Page 151 KEY_COL0 VOL-DOWN GND10 KEY_COL1 CAM KEY KEY_COL3 KEY_ROW5 LOCK KEY KEY_COL4 KEY_ROW5 R447 CLK32K CLK32K_1V8 R448 C435 100K LGE Internal Use Only - 152 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 152 EGSM RX HIGH 2.65 - 2.85V DCS RX PCS RX HIGH UMTS1 HIGH UMTS2 HIGH HIGH UMTS3 HIGH HIGH Copyright © 2009 LG Electronics. Inc. All right reserved. - 153 - LGE Internal Use Only Only for training and service purposes...
  • Page 153 LCD_WRn SLIDE_KEY_LED LCD_CD EQBN0007601 END_KEY LCD_CSn LCD_BL_CTRL KTC4075E Q800 LCD_VSYNC LCD_ID R808 LCD_RESET SLIDE_KEY_LED VA807 ENBY0045701 EVLC5S0250 AXT540124 LGE Internal Use Only - 154 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 154 LCD_CSn LCD_BL_CTRL LCD_CD LCD_RESET LCD_WRn LCD_ID LCD_RDn LCD_DATA[7] LCD_DATA[6] 2V11_RTC LCD_DATA[5] LCD_DATA[4] LCD_DATA[3] LCD_DATA[2] LCD_DATA[1] LCD_DATA[0] ENBY0043101 AXT670124 Copyright © 2009 LG Electronics. Inc. All right reserved. - 155 - LGE Internal Use Only Only for training and service purposes...
  • Page 155 LGE Internal Use Only - 156 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 156: Bga Pin Map

    9. BGA Pin Map GW520 service manual 9. BGA Pin Map PMB 8878 Pin Configuration (Top View) : N/C Copyright © 2009 LG Electronics. Inc. All right reserved. - 157 - LGE Internal Use Only Only for training and service purposes...
  • Page 157 GW520 service manual PMB6821 PMB6821 Pin Configuration (Top View) PMB6821 Pin Configuration (Top View) : NC Pin : NC Pin LGE Internal Use Only - 158 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 158 9. BGA Pin Map GW520 service manual PMB6952 Pin Configuration (Top View) : GND : N/C Copyright © 2009 LG Electronics. Inc. All right reserved. - 159 - LGE Internal Use Only Only for training and service purposes...
  • Page 159 LGE Internal Use Only - 160 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 160: Pcb Layout

    No LCD display. U401 Motion Sensor. Can not rotate the screen automatically. MIC300 MIC.Can not record or send user voice. Copyright © 2009 LG Electronics. Inc. All right reserved. - 161 - LGE Internal Use Only Only for training and service purposes...
  • Page 161 SW500 Mobile switchWCDMA/ key . GSM TX power & RX Sensitivity No Service U505 PAMWCDMA TX power No Service LGE Internal Use Only - 162 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 162 10. PCB LAYOUT CN801 B to B conn.Can not operate Send/Function/End key.No LCD display. Copyright © 2009 LG Electronics. Inc. All right reserved. - 163 - LGE Internal Use Only Only for training and service purposes...
  • Page 163 Icon selection CN702 B to B conn.Can not power on.Don’t operate Slide key, Touch Window, Receiver. No LCD display. LGE Internal Use Only - 164 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 164: Pcb Layout

    10. PCB LAYOUT LGMC Copyright © 2009 LG Electronics. Inc. All right reserved. - 165 - LGE Internal Use Only Only for training and service purposes...
  • Page 165 CN800 LCD Conn.No LCD BAT800 Backup Battery.RTC operate Send/Function/End Display reset. key.No LCD display. U800 LCD Backlight Charge PumpNo Display LGMC LGE Internal Use Only - 166 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 166: Rf Calibration

    11. RF Calibration 11. RF Calibration 11.1. Test Equipment Setup 11.2. Calibration Step 11.2.1. Turn on the Phone. Copyright © 2009 LG Electronics. Inc. All right reserved. - 167 - LGE Internal Use Only Only for training and service purposes...
  • Page 167 GW520 service manual Execute “HK_36.exe” 11.2.2. Click “SETTING” Menu 11.2.3. Setup “Ezlooks” menu such as the following figure LGE Internal Use Only - 168 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 168 GW520 service manual 11.2.4. Setup “Line System” menu such as the following figure 11.2.5 Setup Logic operation such as the following figure. Copyright © 2009 LG Electronics. Inc. All right reserved. - 169 - LGE Internal Use Only Only for training and service purposes...
  • Page 169 11. RF Calibration GW520 service manual 11.2.6. Select “MODEL”. 11.2.7. Click “START” for RF calibration 11.2.8. RF Calibration finishes LGE Internal Use Only - 170 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 170 2. Calibration program automatically changes either “normal mode” or “ptest mode”. 3. Phone operation Mode < Normal Mode> <Ptest Mode> Copyright © 2009 LG Electronics. Inc. All right reserved. - 171 - LGE Internal Use Only Only for training and service purposes...
  • Page 171 LGE Internal Use Only - 172 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 172: Exploded View & Replacement Part List

    12. EXPLODED VIEW & REPLACEMENT PART LIST 12.1 EXPLODED VIEW 24 15 19 16 22 41 Copyright © 2009 LG Electronics. Inc. All right reserved. - 173 - LGE Internal Use Only Only for training and service purposes...
  • Page 173 ASS’Y EXPLODED VIEW LGE Internal Use Only - 174 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 174: Replacement Parts

    LABEL,A/S MLAB0001102 C2000 USASV DIA 4.0 WHITE WITHOUT MPBJ00 PAD,MOTOR MPBJ0063701 COMPLEX, (empty), , , , , COLOR Copyright © 2009 LG Electronics. Inc. All right reserved. - 175 - LGE Internal Use Only Only for training and service purposes...
  • Page 175 COMPLEX, (empty), , , , , COLOR COVER WITHOUT ACGS00 ACGS0027301 ASSY,SLIDE(UPPER) COLOR WITHOUT ABGG00 BUTTON ASSY,SUB ABGG0010701 SHEET KEY COLOR LGE Internal Use Only - 176 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 176 GMZZ0020301 1.4 mm,1.5 mm,MSWR3(BK) ,N ,+ ,- , BLACK MCCH00 CAP,SCREW MCCH0147702 COMPLEX, (empty), , , , , Copyright © 2009 LG Electronics. Inc. All right reserved. - 177 - LGE Internal Use Only Only for training and service purposes...
  • Page 177 COMPLEX, (empty), , , , , COLOR WITHOUT ADCA00 DOME ASSY,METAL ADCA0097401 MAIN COLOR WITHOUT MLAZ00 LABEL MLAZ0038301 PID Label 4 Array COLOR LGE Internal Use Only - 178 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 178: Main Component

    PCB ASSY,KEYPAD,SMT SAEC00 SAEC0033701 BOTTOM 3.3V, Cap(0.07F), Size(Coin, 4.8 x 1.4), Pb-Free ,; BAT800 MODULE,ETC SMZY0018401 ,Module Assembly Copyright © 2009 LG Electronics. Inc. All right reserved. - 179 - LGE Internal Use Only Only for training and service purposes...
  • Page 179 White ,1608 ,R/TP ,White LED LD801 DIODE,LED,CHIP EDLH0005901 White ,1608 ,R/TP ,White LED LD802 DIODE,LED,CHIP EDLH0005901 White ,1608 ,R/TP ,White LED LGE Internal Use Only - 180 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 180 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C116 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 181 - LGE Internal Use Only Only for training and service purposes...
  • Page 181 220 nF,10V ,K ,X5R ,TC ,1005 ,R/TP C149 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C150 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP LGE Internal Use Only - 182 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 182 ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP C225 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 183 - LGE Internal Use Only Only for training and service purposes...
  • Page 183 ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C318 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C322 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C323 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP LGE Internal Use Only - 184 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 184 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C503 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C504 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 185 - LGE Internal Use Only Only for training and service purposes...
  • Page 185 ECCH0000901 2.2 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP C537 CAP,CHIP,MAKER ECZH0000822 1.5 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only - 186 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 186 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C571 CAP,CERAMIC,CHIP ECCH0000105 4 pF,50V,C,NP0,TC,1005,R/TP C572 CAP,CHIP,MAKER ECZH0000846 8.2 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 187 - LGE Internal Use Only Only for training and service purposes...
  • Page 187 5 ,0.65 mm,ANGLE , ,P=0.65mm, Offset Type ,; , CN301 CONNECTOR,I/O ENRY0008101 ,0.64MM ,ANGLE ,[empty] ,DIP ,R/TP , LGE Internal Use Only - 188 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 188 FL506 FILTER,SAW SFSY0024301 942.5 MHz,1.4*1.1*0.6 ,SMD ,5pin, Unbal-Bal, 50//150 J200 CONN,SOCKET ENSY0018701 6 PIN,ETC , ,2.54 mm,H=1.8 Copyright © 2009 LG Electronics. Inc. All right reserved. - 189 - LGE Internal Use Only Only for training and service purposes...
  • Page 189 2.2 nH,S ,1005 ,R/TP , L521 INDUCTOR,CHIP ELCH0001413 22 nH,J ,1005 ,R/TP ,PBFREE L522 INDUCTOR,CHIP ELCH0004712 3.9 nH,S ,1005 ,R/TP , LGE Internal Use Only - 190 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 190 27 Kohm,1/16W ,J ,1005 ,R/TP R209 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP R212 RES,CHIP ERHY0000254 4.7K ohm,1/16W,J,1005,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 191 - LGE Internal Use Only Only for training and service purposes...
  • Page 191 PCB ASSY,MAIN,PAD R443 SAFO0000501 0OHM_1005_DNI OPEN PCB ASSY,MAIN,PAD R446 SAFP0000501 SHORT R447 RES,CHIP,MAKER ERHZ0000486 47 Kohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only - 192 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 192 OPEN PCB ASSY,MAIN,PAD R522 SAFP0000401 SHORT PCB ASSY,MAIN,PAD R523 SAFP0000401 SHORT PCB ASSY,MAIN,PAD R525 SAFO0000401 0OHM DNI OPEN Copyright © 2009 LG Electronics. Inc. All right reserved. - 193 - LGE Internal Use Only Only for training and service purposes...
  • Page 193 5.5 V, ,SMD ,1005, 50pF VA206 VARISTOR SEVY0005201 5.5 V, ,SMD ,1005, 50pF VA207 VARISTOR SEVY0005201 5.5 V, ,SMD ,1005, 50pF LGE Internal Use Only - 194 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 194 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C400 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 195 - LGE Internal Use Only Only for training and service purposes...
  • Page 195 10 ohm,1005 ,Ferrite Bead LD200 DIODE,LED,CHIP EDLH0004501 BLUE ,1608 ,R/TP , LD201 DIODE,LED,CHIP EDLH0004501 BLUE ,1608 ,R/TP , LGE Internal Use Only - 196 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 196 100 Kohm,1/16W ,J ,1005 ,R/TP R241 RES,CHIP,MAKER ERHZ0000404 1 Kohm,1/16W ,J ,1005 ,R/TP R242 RES,CHIP,MAKER ERHZ0000404 1 Kohm,1/16W ,J ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 197 - LGE Internal Use Only Only for training and service purposes...
  • Page 197 R412 SAFO0000501 0OHM_1005_DNI OPEN PCB ASSY,MAIN,PAD R413 SAFO0000501 0OHM_1005_DNI OPEN R414 RES,CHIP,MAKER ERHZ0000484 470 ohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only - 198 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 198 SSOP5-P-0.65 ,5 PIN,R/TP ,XOR GATE, Pb Free BGA ,8 PIN,R/TP ,Class AB SPK AMP ,; ,IC,Audio U202 EUSY0349001 Amplifier Copyright © 2009 LG Electronics. Inc. All right reserved. - 199 - LGE Internal Use Only Only for training and service purposes...
  • Page 199 5.5 V, ,SMD ,1005, 50pF VA402 VARISTOR SEVY0005201 5.5 V, ,SMD ,1005, 50pF VA403 VARISTOR SEVY0004101 5.6 V, ,SMD ,360pF, 1005 LGE Internal Use Only - 200 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 200: Accessory

    100-240V ,5060 Hz,5.1 V,0.7 A,CE ,STA-U12ES, Europe, ADAPTOR,AC-DC SSAD0031003 Cableless ,; , ,5.1 ,0.7 , , ,WALL 2P ,USB , Copyright © 2009 LG Electronics. Inc. All right reserved. - 201 - LGE Internal Use Only Only for training and service purposes...

Table of Contents