LG GS107 Service Manual
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LG GS107 Service Manual

LG GS107 Service Manual

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Internal Use Only
Service Manual
GS107
Date: February, 2010 / Issue 1.0

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Summary of Contents for LG GS107

  • Page 1 Internal Use Only Service Manual GS107 Date: February, 2010 / Issue 1.0...

  • Page 2: Table Of Contents

    12.2 Replacement Parts..............11 4.7 LCD Trouble ..................71 12. Accessory ................... 125 4.8 Speaker Trouble ................75 4.9 Earphone Trouble .................78 -  - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 3 - 4 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 4: Introduction

    - 5 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. - 6 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 6: Abbreviations

    International Portable User Identity Intermediate Frequency Liquid Crystal Display Low Drop Output Light Emitting Diode OPLL Offset Phase Locked Loop - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 Time Division Multiple Access UART Universal Asynchronous Receiver/Transmitter Voltage Controlled Oscillator VCTCXO Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol - 8 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 8: Performance

    2. PERFORMANCE 2. PERFORMANCE LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. 8/140 Only for training and service purposes - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only...
  • Page 9 Feature Comment Speaker/Receiver 18x12 Speaker/ Receiver Travel Adapter MIDI 32 poly Camera Not Support FM Radio 87~108MHz supported - 10 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 10: Technical Specification

    Power Toler. 30dBm 14dBm 28dBm 12dBm 26dBm 10dBm 24dBm 8dBm 22dBm 6dBm 20dBm 4dBm 18dBm 2dBm 16dBm 0dBm - 11 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 6,000 GSM850/ EGSM Offset from Carrier (kHz). Max. dBm Output RF Spectrum (due to switching transient) 1,200 1,800 - 12 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 12 3 dB 13 4 dB Frequency (Hz) Max.(dB) Min.(dB) 1,000 Sending Response 2,000 3,000 3,400 4,000 2 3 dB - 1 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 2. PERFORMANCE ≤ ≤ LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. 13/140 Only for training and service purposes - 14 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
  • Page 14 ± ± ± ± LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. 14/140 Only for training and service purposes - 15 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only...

  • Page 15: Technical Brief

    Figure. 3.1.1 X-Gold tm 110 Hardware Block Diagram Figure. 3.1.1 X-Gold tm 110 Hardware Block Diagram Figure. 3.1.1 X-Gold tm 110 Hardware Block Diagram - 16 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 16 – PWM source to drive vibrator – Keypad and display backlight supported. – HASH Unit support for hashing. - 17 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 Bus Interconnections The interconnection between the X-Bus and the TEAKlite Bus uses: • Multicore Synchronization • Shared Memory. - 18 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 18 – Color conversion YUV -> RGB – 2D vector graphics (Lines, filled rectangles, Bit block transfer (e.g. sprites, scrolling, antialiased bitmap fonts) - 19 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 19: Power Management

    (via LDO LCORE), parts of the mixed signal macro, parts of the RF macro and the external memory if a 1.8V memory is used. - 20 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 20 The RF module has implemented several LDO’s for different RF Power domain. The mixed signal module has some LDO’s for the audio driver and microphone supply. - 21 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 3. TECHNICAL BRIEF 3. TECHNICAL BRIEF Table. 3-2-1 Power supply Domains (without RF) - 22 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 22 This is handled by an ADC control block in one of the state- machines. If the charger unit is running the ADC is controlled by the charger state-machine - 2 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 If the charger unit is running the ADC is controlled by the charger state-machine Figure.3.2.1 First Part of the State Machine, Running in Different Power Domains than the Second Part - 24 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 24 3. TECHNICAL BRIEF 3. TECHNICAL BRIEF Figure 3.2.2 Second (Main) Part of the Startup State Machine in the VPMU Domain - 25 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 This is important, especially in half/full-wave charging where the charger detection is switching between charger detected/not detected according the AC supply frequency. reasons - 26 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 26 LCORE core regulator and wait for the core to reach reset state before powering up the I/O supply regulators. - 27 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 27 3. TECHNICAL BRIEF 3. TECHNICAL BRIEF Figure 3.2.3 Start Up Sequence (triggered by First Connect Event) - 28 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 28 OFF mode. This is done via the SHUTDOWN state of the PMU state machine. (see chapter switch OFF) - 29 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 10 MHz. This oscillator is running during charging and during battery measurements triggered by the PMU. It is off otherwise. - 0 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 30 Before switching OFF the software shall have enabled the 32 kHz oscillator and has switched the PMU clock to the 32 kHz clock to archive the target OFF current - 1 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 31: Fem With Integrated Power Amplifier Module

    One PA block supports the GSM900 band and the other PA block supports the DCS1800 band. Both PA blocks share common power supply pads to distribute current. - 2 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 32 1.5n C313 1.2pF IN CASE OF GSM850/PCS1900 CHANGE THIS MODULE TO PART_NO SMRH0005901(SKY77543) Figure 3.3.3 FEM CIRCUIT DIAGRAM -  - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 33: Crystal(26 Mhz, X102)

    3.5 RF Subsystem of PMB8810 (U101) Figure. 3-5-1 Block DIAGRAM of RF Subsystem Figure. 3-5-1 Block DIAGRAM of RF Subsystem - 4 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 34: Functional Description

    The analog section of the receiver contains two LNAs, quadrature mixer, low-pass filter, and a high resolution continuous-time delta-sigma analog-to-digital converter. Figure. 3.5.2 RECEIVER CHAIN BLOCK DIAGRAM - 5 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 35 - 6 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 36 A minor set of power amplifiers require a bias voltage to enhance power efficiency. Support of this power amplifiers is achieved by the implemented bias DAC. Figure. 3.5.4 PA AND FEM CONTROL BLOCK DIAGRAM - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 37: Memory(K5N217Ata-At80, U102 )

    11ns burst access time and 70ns initial access time. At 83MHz, the device provides an 9ns burst access time and 70ns initial access time. - 8 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 38 The K5N3217ATA is suitable for use in data memory of mobile communication system to reduce not only mount area but also power consumption. This device is available in 52-ball FBGA Type. - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 39: Sim Card Interface

    This signal makes SIM card to HW default status. SIM_CLK This signal is transferred to SIM card. SIM_DATA This signal is interface datum. - 40 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 40: Lcd Interface

    PDAs, where long battery life is a major concern. phones or small PDAs, where long battery life is a major concern. - 41 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 41 • 3% LED Output Current Matching • Built-in Thermal Protection • Low-Current Shutdown Mode • Built-in Thermal Protection - 42 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 42: Battery Charger Interface

    +6.9V to protect against unqualified or faulty AC adapters cables. The IC operates over the extended temperature range (-40 C to +85 C) - 4 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 43: Keypad Interface

    DOWN KEY_OUT4 C260 C261 C239 C236 C223 C238 KEY_IN0 KEY_IN1 KEY_IN2 KEY_IN3 KEY_IN4 Figure 3.10.1 MAIN KEY STRUCTURE - 44 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 44 Figure 3.10.2 Block Diagram and System Integration of the KPD Figure 3.10.2 Block Diagram and System Integration of the KPD - 45 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 45: Audio Front-End

    • Analog part The following figure shows an architecture overview of the Audio section. Figure 3.11.1 Audio Section Overview - 46 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 46 Firmware. • The high-pass functions of the voiceband filters have to be implemented in firmware on TEAKLite®. - 47 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 47 Loudspeaker driver, b) one mono, differential Earpiece driver and c) one stereo, single-ended (with uni- or bipolar signals), Headset driver. - 48 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 48 The buffers are designed to be short circuit protected. Figure 3.11.3 Switching for R/L DACs onto Buffers - 49 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 49 To improve SNR the sample frequency can be doubled in dedicated modes and the modulated data stream is 4MHz instead of 2 MHz. - 50 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 50 In case of an digital microphone VMIC can be used for supplying this microphone. Figure 3.11.5 Typical Microphone Supply Generation (alternative) - 51 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 51: Key Baclklight Led Interface

    LD202 LD203 LD204 LD205 LD206 19-217_BHC-ZM1N2QY_3T R229 Q202 KEY_BACKLIGHT KTC4075E 10Kohms C283 2.2u Figure 3.12.1 Key Backlight Block - 52 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 52: Vibrator Interface

    It is capable to driver the vibrator motor up to 150mA Figure 3.13.1 Vibrator Driver Block Diagram Figure 3.13.2 Vibrator Driver Block - 5 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 53 Figure 3.13.1 Vibrator Driver Block Diagram VB201 VIB_P VIB_N C249 C282 DM-YK407-6F2 R260 SJMY0007905 Figure 3.13.2 Vibrator Driver Block - 54 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 54: Trouble Shooting

    Figure 4.1 U101 Main Chip (EGV3) U102 Memory U301 FEM (Tx Module) FL301 SAW Filter X101 Crystal, 26MHz Clock - 55 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 55: Rx Trouble

    Crystal Circuit (2) Check Mobile SW &TX module (3) Check PLL Control Re-download SW or Do calibration again - 56 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 56 FMRIN FM_ANT FMRINX HOT2 GND2 GND1 HOT1 26MHZ EXXY0018404 RX12 GSM_RXP 1Pin 1 pin Figure 4.2.2 Figure 4.2.3 - 57 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 57 TO PART_NO ELCH0003844(2nH,LQG15HS2N0S02) PGND15 L304 1.5n C313 1.2pF IN CASE OF GSM850/PCS1900 CHANGE THIS MODULE TO PART_NO SMRH0005901(SKY77543) - 58 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 58 Replace FL 301 or U301 is OK ? Mobile SW & TX Module and Saw Filter is EGSM Rx - 59 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 59: Tx Trouble

    (1)Check Crystal Circuit (2) Check Mobile SW &FEM (3) Check PLL Control Redownload SW or Do calibration again - 60 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 60 FMRIN FM_ANT FMRINX HOT2 GND2 GND1 HOT1 26MHZ EXXY0018404 RX12 GSM_RXP 1Pin 1 pin Figure 4.2.2 Figure 4.2.3 - 61 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 61 TO PART_NO ELCH0003844(2nH,LQG15HS2N0S02) PGND15 L304 1.5n C313 1.2pF IN CASE OF GSM850/PCS1900 CHANGE THIS MODULE TO PART_NO SMRH0005901(SKY77543) - 62 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 62 TP1 Signal is OK? ReplaceFEM (U304) TP5 signal same as Replace SW301 TP1? EGSM Tx Mobile SW & FEM is OK. - 6 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 63: Power On Trouble

    U101 VDDTRX VPMU Figure 4.4.1 R116 RPWRON END_KEY R106 100Kohms R116=10Kohm Figure 4.4.2 Figure 4.4.3 Remote power on - 64 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 64 VDDTRX VDDMS VDDXO VDDTDC VDD_VRF2 CLEAN_GND CLEAN_GND VDDP_DIG1 DIRTY_GND DIRTY_GND DIRTY_GND Figure 4.4.4 power block of GS108 GS107 - 65 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 65 Replace U101 and Re-download software Does it work properly? The phone will Replace the main board Properly operating. - 66 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 66: Charging Trouble

    GND2 _CHG_EN1 IEOC EN_SET EUSY0410801 C247 C248 R265 C286 R233 R231 4.7K 1.2K 5.1K Figure 4.5.2 Figure 4.5.2 - 67 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 67 Pin 4 of BQ25040 = 4.9V U205 Battery is charged? Replace the main board Charging is properly operating - 68 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 68: Vibrator Trouble

    VIB_N C249 C282 DM-YK407-6F2 R260 0.22uF STAR_GND SJMY0007905 Vibrator PAD DIRTY_GND Main IC (U101) Figure 4.6.2 Figure 4.6.2 - 69 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 69 ? Is the voltage at VB201 Replace the U101 (+) high? Replace vibrator Vibrator Working well ! - 70 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 70: Lcd Trouble

    TEST POINT C406 CN401 U402 R444 R441 R48 R49 R47 R45 R442 R44 R46 R44 R4 R42 Figure 4.7.1 - 71 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 71 AAT3192-1 MLED1 MLED MLED2 RSET C407 EN_SET W_LED_DRV1 C408 C406 EUSY0238704 R402 R448 4.7K (15K ohm,1/16W,F,1005) Figure 4.7.2 - 72 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 72 Graph 4.7.1. LCD Backlight Dimming Control Signal Waveform Graph 4.7.2. LCD Data Waveform Graph 4.7.2. LCD Data Waveform - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 73 Replace U101 Data pins on CN401 ? Does LCD work Replace LCD module properly ? LCD working well ! - 74 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 74: Speaker Trouble

    Pin 8 Pin 4 Pin 9 Pin 8 C227 U201 U204 C227 Figure 4.8.1 U201 U204 Figure 4.8.1 - 75 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 75: Only For Training And Service Purposes

    100Kohms C226 C210 C228 VA203 VA204 0.22uF L201 R215 39pF 39pF REC_IN_P 4.7ohms R217 R254 SPK_P C202 390p - 76 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 76 R251,R252 Speaker Check the Audio signal Working well!! Replace the U204 R251,R252 Speaker Working well!! Speaker Working well!! - 77 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 77: Earphone Trouble

    TEST POINT C219 C220 FB202 FB201 U205 C212 C256 U205 CN201 C212 C256 CN201 Figure 4.9.1 Figure 4.9.1 - 78 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 78: Only For Training And Service Purposes

    ( USB & EAR MIC & TA &UART ) CN201 GU073-5P-SD-E1500 VBUS_USB C244 FM_ANT_1 0.001uF VA205 L202 C245 6.8pF 180n MUIC_DM MUIC_DP MUIC_ID ENRY0008801 - 79 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 79: Only For Training And Service Purposes

    Change the U203,U101 the earphone? the earphone? Earphone will work properly - 80 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 80: Microphone Trouble

    0.033uF C206 39pF C215 R212 OBE-415L42-RC10-LGB10 MIC_N 100ohms SUMY0007102 0.033uF R214 C229 C222 2.2Kohms 39pF 39pF C204 C203 - 81 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 81 Is it a few tens mV AC? Check the soldering of Resolder component R243, R244, C230, C215 Microphone will work properly. - 82 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 82: Sim Card Interface Trouble

    4.7Kohms J201 GCA26D-6S-H18-E1500 SIM_RST SIM_DATA SIM_CLK GND4 GND1 C216 GND3 GND2 C225 C250 C218 22pF 0.1uF 68pF ENSY0025101 - 8 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 83 Does it work Does it work Properly? Properly? SIM card is properly working SIM card is properly working. - 84 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 84: Key Backlight Trouble

    R230 R222 R227 C246 LD201 LD202 LD203 LD204 LD205 LD206 19-217_BHC-ZM1N2QY_3T R229 Q202 KEY_BACKLIGHT KTC4075E 10Kohms C283 2.2u - 85 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 85 Are all LEDs Check the soldering Working? each R and LED Replace or resolder Backlight will work properly. component - 86 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 86: Fm Radio Trouble

    ( USB & EAR MIC & TA &UART ) CN201 GU073-5P-SD-E1500 VBUS_USB C244 FM_ANT_1 0.001uF VA205 L202 C245 6.8pF 180n MUIC_DM MUIC_DP MUIC_ID ENRY0008801 - 87 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 87 Check F Input & output signal at MUIC Replace U102 A condition is good? FM_radio will work properly - 88 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 88: Download

    If you are going to use battery, the voltage of the battery should be over 3.7V for stable power supplying during S/W download. Figure 5.1. S/W download & upgrade setup - 89 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 89: Download Program User Guide

    5.2 Download program user guide 1. After “GSMULTI” folder copy, paste C:\ 2. “MultiGSM.exe” execution file execute GS108 GS108 LGE Internal Use Only - 90 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 90: Multi-Download Program Setting (Model-Base)

    5.3 Multi-Download Program Setting (Model-Base) Multi-Download Program Execution ? Setting : Configuratio Setting Completed GS108 GS107 GS108 GS107 Copyright © 2010 LG Electronics. Inc. All right reserved. - 91 - LGE Internal Use Only Only for training and service purposes...
  • Page 91 5. DOWNLOAD 5. DOWNLOAD Stand-by Condition: “Wait phone connecting” confirm -> Phone connection GS108 GS108 GS107 GS107 LGE Internal Use Only - 92 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 92: Block Diagram

    6. BLOCK DIAGRAM 6.Block Diagram 6. Block Diagram 6. BLOCK DIAGRAM - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 93 - 94 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 94: Circuit Diagram

    CS3_N NLCD_MAIN_CS (NOT MOUNTED) (FOR SW DEBUGGING / NOT MOUNTED) ON BOARD ARM9 JTAG & ETM INTERFACE VMIC Copyright © 2009 LG Electronics. Inc. All right reserved. - 95 - LGE Internal Use Only Only for training and service purposes...
  • Page 95 DM-YK407-6F2 R260 SJMY0007905 KEY_IN3 R229 KEY_IN4 Q202 R270 Q204 KEY_BACKLIGHT KTC4075E_RTK-H VCORE KTC4075E_RTK-H 10Kohms 10Kohms C283 C284 2.2u LGE Internal Use Only - 96 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 96 Non FM 100K No Torch 100K 64*32 100K Waterproof 100K 100K With Torch 32*16 With Torch Wireless FM Copyright © 2009 LG Electronics. Inc. All right reserved. - 97 - LGE Internal Use Only Only for training and service purposes...
  • Page 97 VBAT U402 AAT3192-1 MLED1 MLED MLED2 RSET C407 EN_SET W_LED_DRV1 C408 C406 EUSY0238704 R402 R448 4.7K (15K ohm,1/16W,F,1005) LGE Internal Use Only - 98 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 98: Bga Pin Map

    8.5 BGA PIN MAP (Top View) 8. BGA Pin Map 8.5.1 BGA IC pin check (U101) Ball Diagram (Top View), PMB7900(E-GOLDVoice 3) 98/140 - 99 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 99 8. BGA Pin Map 8.5.2 BGA IC pin check (U102) Ball Diagram (Top View), K5N6433ATM - 100 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 100: Pcb Layout

    R211 C224 KB206 KB207 KB208 C231 C206 KB211 KB212 KB213 C241 C236 C239 R230 LD206 LD204 KB215 GS107 Copyright © 2009 LG Electronics. Inc. All right reserved. - 101 - LGE Internal Use Only Only for training and service purposes...
  • Page 101 SW301(mobile switch) - Can’t make a call Tx Low power Not good BER No Service ANT303 ANT305 ANT306 GS107 LGE Internal Use Only - 102 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 102: Engineering Mode

    Use Up and Down key to select a menu and press ‘select’ key to progress the test. Pressing ‘back key will switch back to the original test menu. - 10 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 103: Auto Calibration

    GuiTk115d.dll ShieldBox_DllD.dll HK_40 Model KF300d Spec_GU230_001 Setup_Cal_Parameter_001 script_001 PwrSupply_Cmd Procedure_GU230_001 Ezlooks AutoSetup_GU230_001 xmm2130_eep008.cfg LG_RfTest_E5515C_122.dll LG_RfCal_InfiKE000Ag_177.dll dwdio.dll LG_UI_Ad6500_004.dll Multi_HK - 104 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 104: Description Of Basic File

    -. Setup_Cal_Parameter_001.xml : Calibration Definition Module. 6. UI -. LG_UI_Ad6500_002.dll : ADI Model UI Dll. 7. Multi_HK -. Registration File For System Setting. - 105 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 105: Procedure

    Connect as Fig 11-2 (RS232 serial cable is connected between COM port of PC, in general.) . Run HK_40exe to start calibration. Click “ Logic Operation” of “SETTING” menu bar - 106 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 106 10. Select “ LOGIC MODE” that you want Logic mode: 1-> Calibration only 2-> Auto test only 3-> Cal & Auto - 107 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 107 11. AUTO CALIBRATION 11. Select the model name “GS108” GS107 Model name Start button 12. Click “start” button - 108 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 108: Agc

    1909.8 MHz Max power Max power 29.5 dBm 29.5 dBm 29.5 dBm 29.5 dBm 29.5 dBm 29.5 dBm - 109 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 109 - 110 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 110: Exploded View & Replacement Part List

    12. EXPLODED VIEW & REPLACEMENT PART LIST 12.1 EXPLODED VIEW 15-1 15-1 Copyright © 2009 LG Electronics. Inc. All right reserved. - 111 - LGE Internal Use Only Only for training and service purposes...
  • Page 111 ASS’Y EXPLODED VIEW LGE Internal Use Only - 112 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 112: Replacement Parts

    MOLD, Urethane Rubber S190A, , , , , SILVER MCJN00 COVER,REAR MCJN0111401 MOLD, PC LUPOY SC-1004A, , , , , SILVER - 11 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 113 LABEL MLAZ0038301 PID Label 4 Array COLOR WITHOUT SC201 CAN,SHIELD MCBA0059901 COMPLEX, (empty), , , , , COLOR - 114 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 114: Main Component

    0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C112 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C113 CAP,CERAMIC,CHIP ECCH0000161 33 nF,16V,K,X7R,HD,1005,R/TP - 115 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 115 ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C212 CAP,CERAMIC,CHIP ECCH0000179 22 nF,16V ,K ,X5R ,HD ,1005 ,R/TP C213 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP - 116 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 116 ECZH0003503 1 uF,25V ,K ,X5R ,HD ,1608 ,R/TP C283 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP - 117 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 117 ECCH0000112 15 pF,50V,J,NP0,TC,1005,R/TP C432 CAP,CERAMIC,CHIP ECCH0000112 15 pF,50V,J,NP0,TC,1005,R/TP C433 CAP,CERAMIC,CHIP ECCH0000112 15 pF,50V,J,NP0,TC,1005,R/TP C434 CAP,CERAMIC,CHIP ECCH0000112 15 pF,50V,J,NP0,TC,1005,R/TP - 118 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 118 1.2 nH,S ,1005 ,R/TP , L309 INDUCTOR,CHIP ELCH0005004 22 nH,J ,1005 ,R/TP , L313 INDUCTOR,CHIP ELCH0003848 220 nH,J ,1005 ,R/TP ,chip inductor - 119 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 119 10 Kohm,1/16W ,F ,1005 ,R/TP R220 RES,CHIP,MAKER ERHZ0000402 10 ohm,1/16W ,J ,1005 ,R/TP R223 RES,CHIP,MAKER ERHZ0000204 100 Kohm,1/16W ,F ,1005 ,R/TP - 120 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 120 100 ohm,1/16W ,J ,1005 ,R/TP R435 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP R436 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP - 121 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 121 ~ +85'C, C0 1.0pF, C1 3.6fF ,; ,26 ,10PPM ,8 , , ,SMD ,R/TP SAFD00 PCB ASSY,MAIN,SMT TOP SAFD0139601 C131 CAP,CHIP,MAKER ECZH0001216 220 nF,10V ,K ,X5R ,TC ,1005 ,R/TP - 122 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 122 100 ohm,1/16W ,J ,1005 ,R/TP R213 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP R214 RES,CHIP,MAKER ERHZ0000443 2200 ohm,1/16W ,J ,1005 ,R/TP - 12 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 123 5.5 V, ,SMD ,Vdc 5.5, Vb 8, Cp 420, 1.0*0.5*0.6 , ,5.5 , ,480 VA202 VARISTOR SEVY0003901 ,1.0*0.5*0.6 ,[empty] ,SMD ,R/TP - 124 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 124: Accessory

    100-240V ,5060 Hz,4.8 V,.4 A,GOST ,AC-DC ADAPTOR ,; ADAPTOR,AC-DC SSAD0034902 ,150Vac~350Vac ,4.8Vdc ,400mA ,5060 ,CB ,WALL 2P ,USB , - 125 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

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