LG MG230 Service Manual
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LG MG230 Service Manual

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Internal Use Only
Service Manual
MG230/MG235
Date: May, 2007 / Issue 1.0

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  • Page 1 Internal Use Only Service Manual MG230/MG235 Date: May, 2007 / Issue 1.0...
  • Page 2 * This manual provides the information necessary to install, program, operate and maintain the MG230/MG235. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 1 -...
  • Page 3 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 2 - Only for training and service purposes...

  • Page 4: Table Of Contents

    4.9 MIC Trouble ...........55 4.10 Earphone Trouble ........57 4.11 KEYPAD Backlight LEDS Trouble ..61 4.12 SIM Trouble .........62 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 3 - Only for training and service purposes...
  • Page 5 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 4 - Only for training and service purposes...

  • Page 6: 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 MG230/MG235 or compatibility with the network, 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 7 The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly different. F. Interference and Attenuation An MG230/MG235 may interfere with sensitive laboratory equipment, medical equipment, etc. Interference from unsuppressed engines or electric motors may cause problems. G. Electrostatic Sensitive Devices...

  • Page 8: System Specification

    Speech coding HR/EFR/FR/AMR Data and Fax Vibrator Buzzer No Voice Recoding C-Mic Receiver Travel Adapter Options Item Feature Comment Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 7 - Only for training and service purposes...

  • Page 9: Technical Brief

    3.1 MG230/MG235 Block diagram. Figure 3-1 MG230/MG235 Hardware architecture MG230/MG235 is composed with 3 different PCB part such as main PCB, Key FPCB and LCD FPCB. The functional component arrangement is mentioned below diagram. Figure 3-2 MG230/MG235 Functional block diagram LGE Internal Use Only Copyright ©...

  • Page 10: Rf Part Introduction

    The Receive path features automatic calibration and tracking to remove DC offsets. The RF Receiver block is shown as below. Figure 3-3 The RF Receiver Block Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 9 -...
  • Page 11 2/3 multiplication of the VCO output for the high band (DCS1800/PCS1900) and a 1/3 multiplication for low band (E-GSM/GSM850). LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 10 - Only for training and service purposes...

  • Page 12: Transmitter Part

    In Low band operation the TX VCO output is divided by two and filtered. The TX VCO is automatically calibrated to ensure optimum performance over its operating frequency of 1648 to 1910 MHz. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 11 -...
  • Page 13 To minimize complexity of the external PCB layout the Main Synthesizer loop filter is also fully integrated into the IC. No external components or adjustments are required. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 12 - Only for training and service purposes...

  • Page 14: The Crystal Reference System

    Figure 3-4 The Crystal Reference System Dedicated control software ensures excellent frequency stability under all circumstances. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 13 - Only for training and service purposes...

  • Page 15: Power Management

    VCC_REF be supplied from a external LDO of nominal supply voltage 2.75V (e.g. ADP3330 or Analog Baseband IC: Vout=2.75V_1.4%) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 14 - Only for training and service purposes...

  • Page 16: Baseband Introduction

    • GSM 900/850 power classes 4 and 5, • DCS 1800 power classes 1 and 2, and • PCS 1900 power classes 1 and 2 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 15 -...

  • Page 17: Interconnection With External Devices

    Control LCD backlight level MLED1,2 Current source for backlight LED Table 3-4 Description Of LCD Backlight LED Control LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 16 - Only for training and service purposes...
  • Page 18 3.0 volt interface SIM card. SIM_CLK Clock 3.25MHz frequency. SIM_RST Reset SIM block Table 3-6 SIM Control Signals Description Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 17 - Only for training and service purposes...
  • Page 19 - VMIC : supplies the microphone interface circuitry (2.5 V, 1 mA) - VVCXO : supplies the voltage controlled crystal oscillator ( 2.75 V, 10 mA) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 18 - Only for training and service purposes...

  • Page 20: Battery Charging Block

    R126 USC0 USC0 BATT_TEMP USC1 USC1 USC2 USC2 C158 USC3 USC3 0.1u USC4 USC4 USC5 USC5 FM_32K USC6 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 19 - Only for training and service purposes...

  • Page 21: Display And Interface

    • LCD_ID: LCD type selection signals • VSYNC_OUT : Vsync Interface • For using 65K color, data buses should be 16 bits. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 20 - Only for training and service purposes...
  • Page 22 SPKREC_L_N L_SUB_CS LCD_RESET ( RCV_P ) ( RCV_N ) C108 C106 C107 0.1u Figure 3-7 LCD Interface Circuit Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 21 - Only for training and service purposes...

  • Page 23: Keypad Switches And Scanning

    R322 KEY_ROW4 R329 KEY_COL0 R331 KEY_COL1 R332 KEY_COL2 R333 KEY_COL3 R334 KEY_COL4 Figure 3-8 Keypad Switches and Scanning LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 22 - Only for training and service purposes...

  • Page 24: Microphone

    • MIDI file parser supports Standard MIDI (formats 0, 1 and 2), SMAF-MA3, GM-Lite and SP-MIDI The main speaker is driven directly by AD6720 AOUT2P and AOUT2N pins and the gain is controlled by the PGA in an AD6720. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 23 -...
  • Page 25 100K C232 220p SPEAKER FILTER R100 SPKREC_N SPKREC_L_N C104 C105 R101 SPKREC_P SPKREC_L_P Figure 3-10 Main Speaker Circuit LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 24 - Only for training and service purposes...

  • Page 26: Headset Interface

    EVLC18S02003 EVLC18S02003 EVLC18S02003 REMOVE CLOSE TO HEADSET JACK (NA) (270nH) INSERT BOT PLACE(NA) Figure 3-11 Headset Jack Interface Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 25 - Only for training and service purposes...

  • Page 27: Key Back-Light Illumination

    VBAT VBAT KEY BACKLIGHT EDLH0013501 R349 VA315 Q300 KEY_BACKLIGHT ICVS0505481FR UMT2222A R350 7.5K Figure 3-12 Key Backlight Illumination LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 26 - Only for training and service purposes...

  • Page 28: Lcd Back-Light Illumination

    AAT3120ITP-20-T1 C400 C401 C402 LCD_DIM_CTL EN_SET R401 MLED1 100K MLED2 TP401 C404 EUSY0253601 Figure 3-13 LCD Backlight Illumination Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 27 - Only for training and service purposes...

  • Page 29: Vibrator

    VIBRATOR (GPIO_0) of AD6720 VBAT R407 VBAT R408 R409 Q400 VIBRATOR R411 MOTOR 7.5K EMZ2 EQBA0002701 Figure 3-14 Vibrator Circuit LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 28 - Only for training and service purposes...

  • Page 30: Trouble Shooting

    PAM (Power Ampilifier Module) X500 OSC (26MHz) FL500 FEM (Front End Module) U501 Transceiver SW500 Mobile Switch Table 4-1. RF Components Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 29 - Only for training and service purposes...

  • Page 31: Rx Trouble

    4. TROUBLE SHOOTING 4.2 RX Trouble Figure 4-2. Receiver Part LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 30 - Only for training and service purposes...
  • Page 32 4.2.1 Check Crystal Circuit Pin 1,3:26MHz Figure 4-3 4.2.2 Check Control Signal S DATA S EN S CLK Figure 4-4 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 31 - Only for training and service purposes...
  • Page 33 VLDO3 Check C536 0.1u point S_DATA S_EN Check S_CLK point C540 C541 C542 C543 X500 NX3225DA(W-191-451) 26MHz EXXY0018403 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 32 - Only for training and service purposes...
  • Page 34 SW500.ANT IN & OUT C580 1.2p SW500.RF IN & OUT L590 3.9nH SW500 KMS-512 ENWY0002304 Figure 4-5 C517 - 33 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 35 4.2.4 Check ANT SW(SAW filter) ANT_SW1(VC1) ANT_SW2(VC2) Figure 4-6 MODE GSM1800/1900 Rx GSM850/900 Rx GSM850/900 Tx GSM1800/1900 Tx Table 4-3 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 34 - Only for training and service purposes...
  • Page 36 4. TROUBLE SHOOTING 4.2.5 Check I/Q signal C515 C543 Figure 4-8 Graph 4-2 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 35 - Only for training and service purposes...

  • Page 37: Tx Trouble

    4. TROUBLE SHOOTING 4.3 TX Trouble Figure 4-9 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 36 - Only for training and service purposes...
  • Page 38 VLDO3 C536 0.1u S_DATA S_EN S_CLK Check C540 C541 C542 point C543 Check point X500 NX3225DA(W-191-451) 26MHz EXXY0018403 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 37 - Only for training and service purposes...
  • Page 39 4. TROUBLE SHOOTING 4.3.2 Check Control Signal S DATA S EN S CLK Figure 4-11 Graph 4-2 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 38 - Only for training and service purposes...
  • Page 40 4. TROUBLE SHOOTING 4.3.3 Check TX I/Q signal C515 C543 Figure 4-12 Graph 4-2 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 39 - Only for training and service purposes...
  • Page 41 R503 TX_RAMP C505 C506 C508 C509 0.01u 0.01u DCS_PCS_OUT DCS_PCS_IN U500 EGSM_OUT EGSM_IN SKY77318 RSVD_GND SMPY0014001 ENABLE P_GND LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 40 - Only for training and service purposes...
  • Page 42 4. TROUBLE SHOOTING Graph 4-3 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 41 - Only for training and service purposes...
  • Page 43 R508 (low Band PAM OUTPUT ) SW500.ANT IN & OUT SW500.RF IN & OUT ANT SW1(VC1) ANT_SW2(VC2) Figure 4-14 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 42 - Only for training and service purposes...
  • Page 44 4. TROUBLE SHOOTING MODE GSM1800/1900 Rx GSM850/900 Rx GSM850/900 Tx GSM1800/1900 Tx Table 4-3 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 43 - Only for training and service purposes...

  • Page 45: Power On Trouble

    4. TROUBLE SHOOTING 4.4 Power On Trouble D100 KDS121E U101 AD6720 Figure 4-15 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 44 - Only for training and service purposes...
  • Page 46 4. TROUBLE SHOOTING Check the Phone with the following process. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 45 - Only for training and service purposes...

  • Page 47: Charging Trouble

    R126 USC0 USC0 BATT_TEMP USC1 USC1 USC2 USC2 C158 USC3 USC3 0.1u USC4 USC4 USC5 USC5 FM_32K USC6 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 46 - Only for training and service purposes...
  • Page 48 4. TROUBLE SHOOTING Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 47 - Only for training and service purposes...

  • Page 49: Lcd Trouble

    4.6.1 LCD Blue Screen or abnormal display Check Check point point FL602 FL600 FL601 FL603 FL604 Figure 4-17 Checking Flow LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 48 - Only for training and service purposes...
  • Page 50 4. TROUBLE SHOOTING 4.6.2 LCD Black Screen Check point U400 AAT3120 ITP-20-T1 U402 AIT701G (CAMERA IC) Figure 4-18 Checking Flow Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 49 - Only for training and service purposes...
  • Page 51 Circuit Diagram VBAT U400 AAT3120ITP-20-T1 C400 C401 C402 LCD_DIM_CTL EN_SET R401 MLED1 100K MLED2 TP401 C404 EUSY0253601 LCD BACKLIGHT LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 50 - Only for training and service purposes...

  • Page 52: Receiver Trouble

    REC_N R217 C228 R216 100K SPK_N REC_P 0.068u PGND EUSY0300101 SPK_SEL EUSY0304901 C229 R220 R219 100K C232 220p Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 51 - Only for training and service purposes...
  • Page 53 4. TROUBLE SHOOTING CHECKING FLOW LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 52 - Only for training and service purposes...

  • Page 54: Speaker Trouble

    AOUT2P2 R124 AOUT2P1 C154 C155 AOUT2N1 R125 AOUT2N2 C156 AOUT3P AOUT3N SPK_P C157 TDO_ABB C159 TDI_ABB SPK_N TCK_ABB Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 53 - Only for training and service purposes...
  • Page 55 4. TROUBLE SHOOTING CHECKING FLOW LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 54 - Only for training and service purposes...

  • Page 56: Mic Trouble

    C225 R215 100ohm OB4-15L42-C33L VINNORN SUMY0003802 C227 0.1u R218 2.2K VA203 VA204 C230 C231 ICVS0505481FR ICVS0505481FR SEVY0007901 SEVY0007901 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 55 - Only for training and service purposes...
  • Page 57 4. TROUBLE SHOOTING CHECKING FLOW LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 56 - Only for training and service purposes...

  • Page 58: Earphone Trouble

    L203 270nH ELCH0001556 1608 JACK_DETECT EVLC18S02003 EVLC18S02003 EVLC18S02003 REMOVE CLOSE TO HEADSET JACK (NA) (270nH) INSERT BOT PLACE(NA) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 57 - Only for training and service purposes...
  • Page 59 4. TROUBLE SHOOTING CHECKING FLOW LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 58 - Only for training and service purposes...
  • Page 60 4. TROUBLE SHOOTING Earphone receiving path problem Earphone detect problem Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 59 - Only for training and service purposes...
  • Page 61 4. TROUBLE SHOOTING Earphone sending path problem LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 60 - Only for training and service purposes...

  • Page 62: Keypad Backlight Leds Trouble

    4.11 KEYPAD Backlight LEDS Trouble Figure 4-23 Checking Flow VBAT VBAT KEY BACKLIGHT EDLH0013501 R349 VA315 Q300 KEY_BACKLIGHT UMT2222A ICVS0505481FR R350 7.5K Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 61 - Only for training and service purposes...

  • Page 63: Sim Trouble

    4. TROUBLE SHOOTING 4.12 SIM Trouble Figure 4-24 Checking Flow LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 62 - Only for training and service purposes...
  • Page 64 R118 SIM_DATA J100 GND1 SIM_RST SIM_CLK GND2 GND5 GND3 GND4 ENSY0016601 HSSC-6p-25 C151 C150 C152 C145 220n 1000p Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 63 - Only for training and service purposes...

  • Page 65: Vibration Trouble

    4.13 Vibration Trouble Q400 EMZ2 Figure 4-25 VBAT R407 VBAT R408 R409 Q400 VIBRATOR R411 MOTOR 7.5K EMZ2 EQBA0002701 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 64 - Only for training and service purposes...
  • Page 66 4. TROUBLE SHOOTING Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 65 - Only for training and service purposes...

  • Page 67: Download

    Thereafter, you should configure the setting by press the tab “Setting-> Configuration”. See the following picture for detail: LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 66 - Only for training and service purposes...
  • Page 68 For “Option(ADI)”, “Common” should be chosen. After confirm by press “OK”, you can download by connect your phone with the cable of multidownloader Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 67 - Only for training and service purposes...
  • Page 69 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 68 - Only for training and service purposes...

  • Page 70: Circuit Diagram

    Approved OJ101 OJ103 DRAWING REV.1.1 LG Electronics Inc. Iss. Notice No. Date Name LG(42)-A-5505-10:01 LG Electronics Inc. LGMC Copyright © 2007 LG Electronics. Inc. All right reserved. - 69 - LGE Internal Use Only Only for training and service purposes...
  • Page 71 AUDIO NAME Approved DRAWING REV.1.1 Iss. Notice No. Date Name LG Electronics Inc. LGIC(42)-A-5505-10:01 LG Electronics Inc. LGMC LGE Internal Use Only - 70 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 72 KEY, I/O NAME Approved DRAWING Iss. Notice No. Date Name REV.1.1 LG Electronics Inc. LGIC(42)-A-5505-10:01 LG Electronics Inc. LGMC Copyright © 2007 LG Electronics. Inc. All right reserved. - 71 - LGE Internal Use Only Only for training and service purposes...
  • Page 73 EQBA0002701 NAME Approved DRAWING REV.1.1 Iss. Notice No. Date Name LG Electronics Inc. LGIC(42)-A-5505-10:01 LG Electronics Inc. LGMC LGE Internal Use Only - 72 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 74 RF_AERO II NAME Approved DRAWING REV.1.1 Iss. Notice No. Date Name LG Electronics Inc. LGIC(42)-A-5505-10:01 LG Electronics Inc. LGMC Copyright © 2007 LG Electronics. Inc. All right reserved. - 73 - LGE Internal Use Only Only for training and service purposes...
  • Page 75 NAME Approved DRAWING Iss. Notice No. Date Name REV.1.1 LG Electronics Inc. 2V8_VCAM LGIC(42)-A-5505-10:01 LG Electronics Inc. LGMC LGE Internal Use Only - 74 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 76 FM_TUNER+AMP NAME Approved DRAWING Iss. Notice No. Date Name REV.1.1 LG Electronics Inc. LGIC(42)-A-5505-10:01 LG Electronics Inc. LGMC Copyright © 2007 LG Electronics. Inc. All right reserved. - 75 - LGE Internal Use Only Only for training and service purposes...
  • Page 77 DRAWING LCD_FPCB NAME Approved DRAWING Rev.1.0 Iss. Notice No. Date Name LG Electronics Inc. LG Electronics Inc. LGMC LGE Internal Use Only - 76 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 78 VOLUME_SIDEKEY_FPCB NAME Approved DRAWING Iss. Notice No. Date Name LG Electronics Inc. Rev.1.0 LGIC(42)-A-5505-10:01 LG Electronics Inc. LGMC Copyright © 2007 LG Electronics. Inc. All right reserved. - 77 - LGE Internal Use Only Only for training and service purposes...

  • Page 79: Pcb Layout

    7. pcb layout MG230/MG235 LGE Internal Use Only - 78 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 80 7. pcb layout MG230/MG235 Copyright © 2007 LG Electronics. Inc. All right reserved. - 79 - LGE Internal Use Only Only for training and service purposes...
  • Page 81 7. pcb layout MG230/MG235 LGE Internal Use Only - 80 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 82 7. pcb layout MG230/MG235 Copyright © 2007 LG Electronics. Inc. All right reserved. - 81 - LGE Internal Use Only Only for training and service purposes...
  • Page 83 LGE Internal Use Only - 82 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 84: Engineering Mode

    UART Off Reset Buzzer Backlight Bluetooth on Vibrator Buzzer Bluetooth off Vibrator Key PAD MicSpkTest Battery Camera Audio Bluetooth Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 83 - Only for training and service purposes...

  • Page 85: Bb Test [Menu 1]

    This menu is to test the vibration mode. 1) Vibrator on : Vibration mode is on. 2) Vibrator off : Vibration mode is off. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 84 - Only for training and service purposes...
  • Page 86 3) DAI DOWNLINK : Speech decoder test 4) DAI OFF : DAI mode off 8.1.10 Bluetooth This menu can’t use in this phone. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 85 - Only for training and service purposes...

  • Page 87: Rf Test [Menu 2]

    [Soft2 Key]. If the key is working properly, name of the key is displayed on the screen. Test will be completed in 15 seconds automatically. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 86 - Only for training and service purposes...

  • Page 88: Trace Option [Menu 4]

    RF Calibration data, etc. cannot be restored again. 8.7 S/W version This displays software version stored in the phone. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 87 - Only for training and service purposes...

  • Page 89: Stand Alone Test

    - See if the value of RSSI is close to -16dBm when setting the value between 0 ~ 26 in Gain Control Index. - Normal phone should indicate the value of RSSI close to -16dBm. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 88 - Only for training and service purposes...
  • Page 90 4. change the Power level -> measuring ** 2.5G Tri band 5. Measured Power -> Look at your Tester Figure 9-1. HW test program Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 89 - Only for training and service purposes...
  • Page 91 9. STAND ALONE TEST Figure 10-2. Ramping profile LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 90 - Only for training and service purposes...

  • Page 92: Calibration

    Power Supply(Agilent 66311B) GPIB Card GPIB Cable PC (Win2000, English) Com Port Cable I/O Cable RF Cable PIF JIG Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 91 - Only for training and service purposes...
  • Page 93 Agilent : CM_GSM ii) CMU200 : CM_GSM_CMU200 iii) WILLTEK : CM_GSM_WILLTEK Step2. Double click on the “_New_HK_0808.reg” LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 92 - Only for training and service purposes...
  • Page 94 ➀ Model Folder → MG230/MG235 ➁ RF TEST DLL When Update the RF TEST Program, add in CM_GSM\Model Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 93 - Only for training and service purposes...
  • Page 95 ➀ select the Model name (ex:MG230/MG235) ➁ Click the “Start” Button ■ Test result leave “CM_GSM\Debug\Model name\Date_Pass/Fail Folder” LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 94 - Only for training and service purposes...
  • Page 96 * Off-Line : If you could not use ezlooks system, you use off-line mode * On-Line * Online Rework Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 95 - Only for training and service purposes...
  • Page 97 3 - Calibration + RF TEST ➄ You set up the result file name. ➅ The result file creates this path.(non available) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 96 - Only for training and service purposes...
  • Page 98 10. Calibration Result file is stored in the following location. -. CM_GSM\Debug Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 97 - Only for training and service purposes...
  • Page 99 10. Calibration LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 98 - Only for training and service purposes...

  • Page 100: Exploded View & Replacement Part List

    11. EXPLODED VIEW & REPLACEMENT PART LIST 11.1 EXPLODED VIEW 29 30 Copyright © 2007 LG Electronics. Inc. All right reserved. - 99 - LGE Internal Use Only Only for training and service purposes...
  • Page 101 LGE Internal Use Only - 100 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 102: Replacement Parts

    MOLD, PC LUPOY SC-1004A, , , , , Titan Silver MFBD00 FILTER,MIKE MFBD0020701 COMPLEX, (empty), , , , , Black Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 101 - Only for training and service purposes...
  • Page 103 MOLD, PC LUPOY SC-1004A, , , , , Black MLAZ00 LABEL MLAZ0038301 PID Label 4 Array Without Color LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 102 - Only for training and service purposes...

  • Page 104: Main Component

    LABEL,A/S MLAB0001102 C2000 USASV DIA 4.0 White MSAZ00 SHEET MSAZ0047501 COMPLEX, (empty), , , , , Titan Silver Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 103 - Only for training and service purposes...
  • Page 105 ECZH0004402 0.1 uF,16V ,Z ,NP0 ,TC ,1005 ,R/TP C119 CAP,CHIP,MAKER ECZH0004402 0.1 uF,16V ,Z ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 104 - Only for training and service purposes...
  • Page 106 0.1 uF,10V ,K ,X5R ,HD ,1005 ,R/TP C159 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C160 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C161 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 105 - Only for training and service purposes...
  • Page 107 ECZH0001420 1 uF,10V ,K ,X5R ,HD ,1608 ,R/TP C402 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 106 - Only for training and service purposes...
  • Page 108 ECCH0000110 10 pF,50V,D,NP0,TC,1005,R/TP C514 CAP,CERAMIC,CHIP ECCH0000122 47 pF,50V,J,NP0,TC,1005,R/TP C515 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C517 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 107 - Only for training and service purposes...
  • Page 109 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C608 CAP,CHIP,MAKER ECZH0000826 27 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 108 - Only for training and service purposes...
  • Page 110 100 nH,J ,1005 ,R/TP , L601 INDUCTOR,CHIP ELCH0005009 100 nH,J ,1005 ,R/TP , L602 INDUCTOR,CHIP ELCH0005009 100 nH,J ,1005 ,R/TP , Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 109 - Only for training and service purposes...
  • Page 111 0 ohm,1/16W ,J ,1005 ,R/TP R200 RES,CHIP,MAKER ERHZ0000404 1 Kohm,1/16W ,J ,1005 ,R/TP R201 RES,CHIP,MAKER ERHZ0000485 4700 ohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 110 - Only for training and service purposes...
  • Page 112 47 ohm,1/16W ,J ,1005 ,R/TP R329 RES,CHIP,MAKER ERHZ0000505 680 ohm,1/16W ,J ,1005 ,R/TP R330 RES,CHIP,MAKER ERHZ0000483 47 ohm,1/16W ,J ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 111 - Only for training and service purposes...
  • Page 113 130 ohm,1/16W ,J ,1005 ,R/TP R600 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP R601 RES,CHIP,MAKER ERHZ0000405 10 Kohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 112 - Only for training and service purposes...
  • Page 114 5.6 V,20% ,SMD ,PB-FREE(480pF) VA314 VARISTOR SEVY0007901 5.6 V,20% ,SMD ,PB-FREE(480pF) VA315 VARISTOR SEVY0007901 5.6 V,20% ,SMD ,PB-FREE(480pF) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 113 - Only for training and service purposes...
  • Page 115 100 ohm,1/16W ,J ,1005 ,R/TP R338 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP R339 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 114 - Only for training and service purposes...
  • Page 116 5.6 V,20% ,SMD ,PB-FREE(480pF) VA312 VARISTOR SEVY0007901 5.6 V,20% ,SMD ,PB-FREE(480pF) VA313 VARISTOR SEVY0007901 5.6 V,20% ,SMD ,PB-FREE(480pF) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 115 - Only for training and service purposes...

  • Page 117: Accessory

    American Label, Pb-Free ,; ,3.7 ,830 ,0.2C ,PRISMATIC ,50x34x42 , ,BLACK ,Innerpack ,Latin American Label SSAD00 ADAPTOR,AC-DC SSAD0007839 FREE ,50 Hz,5.2 V,800 mA,CE,CB , LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 116 - Only for training and service purposes...
  • Page 118 Note...
  • Page 119 Note...

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