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LG GM730 Service Manual

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Download this manual See also: User Manual, Quick Manual
Internal Use Only
Service Manual
GM730/GM735
Date: November, 2009 / Issue 1.0

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Summary of Contents for LG GM730

  • Page 1 Internal Use Only Service Manual GM730/GM735 Date: November, 2009 / Issue 1.0...

  • Page 2: Table Of Contents

    4.6 Checking GSM Block ..........95 4.7 Power ON Troubleshooting ........102 4.8 Charger Troubleshooting ..........104 4.9 USB trouble .............107 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

    The user may not make any changes and/or repairs expect as specifically noted in this manual. Therefore, note that unauthorized alternations or repair may affect the regulatory status of the system and may void any remaining warranty. Copyright © 2009 LG Electronics. Inc. All right reserved. - 5 - LGE Internal Use Only...

  • Page 5: Only For Training And Service Purposes

    • When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only - 6 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 6: Performance

    18x12 oval type speaker 3) Receiver Speaker/Receiver 10. Bluetooth 11. WLAN IEEE 802.11b/ g Throughput 4Mbps 50 ~ 200m Copyright © 2009 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...

  • Page 7: Usable Environment

    -30 ~ +85°C Humidity 65 % (Max) 2) Environment (Accessory) Reference Spec. TA Power AC 110 ~ 240V, 60Hz LGE Internal Use Only - 8 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 8: Radio Performance

    : -98dBm/-96dBm (2.439%) AM Suppression -98dBm/-96dBm (2.439%) -GSM : -31dBm - DCS : -29dBm Timing Advance ± 0.5T Copyright © 2009 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...

  • Page 9: Only For Training And Service Purposes

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

    +1.5/4 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5 Inner Loop Power Control -0.5/-1.5 -1/-3 -1.5/-4 In Uplink group(10equal command group) +8/+12 +16/+24 Copyright © 2009 LG Electronics. Inc. All right reserved. - 11 - LGE Internal Use Only Only for training and service purposes...

  • Page 11: Only For Training And Service Purposes

    > 33 dB @ ±5 MHz Power Ratio (ACLR) > 43 dB @ ±10 MHz Error Vector Magnitude 3GPP Not Complete LGE Internal Use Only - 12 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 12: Current Consumption

    (Stand by and Voice Call Test Condition : Bluetooth off, LCD backlight off,Neighbor Cell off) (VT Test Condition : Speaker off, LCD backlight On) Copyright © 2009 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only...

  • Page 13: Rssi Bar

    Bar 3 → 2 Bar 2 → 1 Bar 1 → 0 Low Battery Alarm Critical Low Battery Alarm POWER OFF LGE Internal Use Only - 14 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 14: Technical Brief

    CTRL0/1/2/3 [Figure 1-1] Block diagram of RF part A generic, high-level functional block diagram of GM730/GM735 is shown in Figure 1-1. One antenna collects base station forward link signals and radiates handset reverse link signals. The antenna connects with receive and transmit paths through a SKY77521 (FEM, Front End Module + GSM PAM).

  • Page 15: Gsm Mode

    2. The amplitude-modulated (AM) component is applied to the ramping control pin of Polar power amplifier from a DAC within the MSM GM730/GM735 power supply voltages are managed and regulated by the PM7540 Power Management IC. This versatile device integrates all wireless handset power management, general housekeeping, and user interface support functions into a single mixed signal IC.

  • Page 16: Only For Training And Service Purposes

    GMSK or 8-PSK processing. These filter circuits include DC offset corrections. The filter outputs are buffered and passed on to the MSM7200A IC for further processing as shown in Figure 1-3. Copyright © 2009 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only...

  • Page 17: Only For Training And Service Purposes

    3. TECHNICAL BRIEF GM730 [Figure 1-3] RTR6285 RX feature 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

    GSM application. Both high-band and low band outputs are followed by resistive pads to ensure that the load presented to the outputs remains close to 50ohm. Copyright © 2009 LG Electronics. Inc. All right reserved. - 19 -...

  • Page 19: Umts Mode

    GSM RX to the MSM IC. The UMTS baseband outputs are turned off when the RTR6285 is downconverting GSM signals and on when the UMTS is operating. [Figure 1-5] UMTS Receiver Inputs Topologies 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

    FVCO to equal FRF. The RTR6285 IC is able to support UMTS 2100/1900/1800/1700/900 and 850 mode transmitting. This design guideline shows UMTS 2100, UMTS1900 and UMTS850 applications. Copyright © 2009 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only...

  • Page 21: Only For Training And Service Purposes

    3. TECHNICAL BRIEF GM730 [Figure 1.6] RTR6285 IC Functional Block Diagram LGE Internal Use Only - 22 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 22: Gps Mode

    With the integrated fractional-N PLL synthesizers, the RTR6285 ICs have the advantage of more flexible loop bandwidth control, fast lock time, and low-integrated phase error. Copyright © 2009 LG Electronics. Inc. All right reserved. - 23 - LGE Internal Use Only...

  • Page 23: Off-Chip Rf Components

    (GPRS) multi-slot operation and EDGE Polar Modulation. WCDMA switch-through support is provided by three dedicated high-linearity ports. [Table 1] Antenna Switch Module Logic LGE Internal Use Only - 24 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 24: Only For Training And Service Purposes

    3. TECHNICAL BRIEF GM730 [Figure 1.8] SKY77521 Functional Block Diagram. 3.6.3 W-CDMA Dual-Band POWER AMPLIFIER (U104: AWT6224R) 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

    3. TECHNICAL BRIEF GM730 [Figure 1.9] AWT6224R Functional Block Diagram. 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

    3. TECHNICAL BRIEF GM730 3.6.4 W-CDMA 1900 POWER AMPLIFIER (U107: AWT6278R) [Figure 1.10] AWT6278R Functional Block Diagram. Copyright © 2009 LG Electronics. Inc. All right reserved. - 27 - LGE Internal Use Only Only for training and service purposes...

  • Page 27: Main Features

    - Internal User Memory over 128MB - 1000 mAh (Li-Ion Polymer) - Windows Mobile 6.1 Professional - Microsoft Office Mobile 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

    Sensor Power & Reset Volume SIDEKEY SIDEKEY Camera SIDEKEY USIM Optical Joystick Sub board, Bottom Sub board, Top 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

    PCS Rx SAW Filter U103 WCDMA (VIII) Coupler FL103 DCS Rx SAW Filter SW101 Test Connector S501 Micro-SD Socket LGE Internal Use Only - 30 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 30: Only For Training And Service Purposes

    PMIC, PM7540 U402 USB Transceiver U203 MCU, MSM7200A U401 Over-voltage Protection U302 Memory, MCP CN401 Micro USB 5Pin Con. Copyright © 2009 LG Electronics. Inc. All right reserved. - 31 - LGE Internal Use Only Only for training and service purposes...

  • Page 31: Only For Training And Service Purposes

    J101 SIM Connector U101 5M Camera ISP U200 Motion Sensor BAT101 RTC Backup Battery CN302 Optical Joystick Con. LGE Internal Use Only - 32 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 32: Digital Baseband(Dbb/Msm7200A)

    - Dual Memory Buses(EBI1-SDRAM & EBI2-NAND Flash) - External Memory Interface (Micro SD) Data Communication - Bluetooth - Slave USB Copyright © 2009 LG Electronics. Inc. All right reserved. - 33 - LGE Internal Use Only Only for training and service purposes...

  • Page 33: Hardware Architecture

    3. TECHNICAL BRIEF 3.9 Hardware Architecture Figure. Simplified Block Diagram of System 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

    3. TECHNICAL BRIEF 3.9.1. Block Diagram(MSM7200A) Figure. Simplified Block Diagram of MSM7200A Copyright © 2009 LG Electronics. Inc. All right reserved. - 35 - LGE Internal Use Only Only for training and service purposes...

  • Page 35: Subsystem(Msm7200A)

    Signals to these circuits control signal gain in the Rx and Tx signal path and maintain The system’s frequency reference. 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

    The MSM7200 device meets the intent of the ANSI/IEEE 1149.1A-1993 feature list. The JTAG interface can be used to test digital interconnects between devices within the mobile station during manufacture. Copyright © 2009 LG Electronics. Inc. All right reserved. - 37 - LGE Internal Use Only...

  • Page 37: Only For Training And Service Purposes

    The USB controller acts as a USB peripheral communicating with the USB host. LGE Internal Use Only - 38 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 38: Power Block

    MSM device controls and statuses the PM7540 IC using Single Serial Bus Interface (SSBI) supplemented by an Interrupt Manager for time-critical information. Another dedicated IC Interface circuit monitors multiple trigger events and controls the power-on sequence. Copyright © 2009 LG Electronics. Inc. All right reserved. - 39 - LGE Internal Use Only...

  • Page 39: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Figure. PM7540 Functional Block Diagram LGE Internal Use Only - 40 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 40: Only For Training And Service Purposes

    U8210 Charging Control block 5~0 (%) 47~26 (%) 25~6 (%) 100~73 (%) 72~48 (%) GM730/GM735 Battery Bar Display(Stand By Condition) Copyright © 2009 LG Electronics. Inc. All right reserved. - 41 - LGE Internal Use Only Only for training and service purposes...

  • Page 41: Only For Training And Service Purposes

    (3.2V). The charging current is set to 80mA. Parameter Unit Trickle Current PM7540 Input Power Management LGE Internal Use Only - 42 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 42: Only For Training And Service Purposes

    • Charging time : Max 2.5h (Except time trickle charging) • Full charge indication current (icon stop current) : 50mA • Cut-off voltage : 3.20V Copyright © 2009 LG Electronics. Inc. All right reserved. - 43 - LGE Internal Use Only...

  • Page 43: External Memory Interface

    (Flash / DRAM) 1.8V NAND H8BES0UQ0MCR- Hynix 45ns / 333MHz 1.8V SDRAM Table#1. External memory interface for GM730/GM735 LGE Internal Use Only - 44 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 44: Only For Training And Service Purposes

    MSM7200A nSDRAM_CAS MMC_DATA[3:0] External Memory MMC_CMD (MICRO SD card) MMC_CLK Figure. Simplified Block Diagram of Memory Interface Copyright © 2009 LG Electronics. Inc. All right reserved. - 45 - LGE Internal Use Only Only for training and service purposes...

  • Page 45: H/W Sub System

    : GSM/DCS-PCS Band Selection of Power Amp GSM_PA_RAMP : Power Amp Gain Control of APC_IC GSM_PA_EN : Power Amp Gain Control Enable of APC_IC LGE Internal Use Only - 46 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 46: Only For Training And Service Purposes

    RX SAW GPCS_INP GPCS_INP GPCS_INP PCS1900 GPCS_INN GPCS_INN GPCS_INN FILTER ANT_SEL0/1/2/3 CTRL0/1/2/3 Figure. Block Diagram of RF Interface Copyright © 2009 LG Electronics. Inc. All right reserved. - 47 - LGE Internal Use Only Only for training and service purposes...

  • Page 47: Only For Training And Service Purposes

    UART signals are connected to MSM GPIO through IO connector with 115200 bps speed. GPIO_Map Name Note GPIO_86 UART3_RX Data_Rx GPIO_87 UART3_TX Data_Tx Table. UART Interface LGE Internal Use Only - 48 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 48: Only For Training And Service Purposes

    ISP1508AET MSM7200A USBH_DM USBH_NEXT u-USB MAX14526 USBH_DP Connector. USBH_STOP USBH_DATA[0:7] Figure. USB block(MSM7200A Side & ISP1508AET, MAX14526 Side) 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

    ON_SW KPD_PWR_N RESET C208 220n PS_HOLD VA202 ZD201 Figure. Power ON / OFF & Suspend Button Keypad circuit LGE Internal Use Only - 50 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 50: Only For Training And Service Purposes

    Figure. Volume CAMERA KEY EVPAHBD6A SW201 KEY_COL[0] CAPTURE KEY_ROW[1] FOCUS KEY_ROW[2] 4M-NEW DOUBLE SWITCH Figure. Camera Keypad Circuit Copyright © 2009 LG Electronics. Inc. All right reserved. - 51 - LGE Internal Use Only Only for training and service purposes...

  • Page 51: Only For Training And Service Purposes

    OJ_MOTION KEY_COL[1] KEY_ROW[1] R311 R310 C228 C227 2.2u VREG_OJ_2.8V 5.6K 5.6K D205 VSMF05LCC Figure. Optical Joystick Keypad Circuit LGE Internal Use Only - 52 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 52: Only For Training And Service Purposes

    3. TECHNICAL BRIEF 3.13.4. Touch Interface In GM730/GM735, 4-wire touch screen panel is used for user input method. Two resistive layers make up a 4-wire touch screen panel and are separated by insulating dots. The inside surface of each layer is coated with a transparent metal oxide coating that generates a gradient across each layer when voltage is applied.

  • Page 53: Only For Training And Service Purposes

    LD202 LEMC-S11G KTK5132E Q201 LEDR KTK5132E Q202 LEDG KTK5132E Q203 LEDB Figure. Schematic of KEY back light circuit LGE Internal Use Only - 54 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 54: Audio And Sound

    AUDIO_I2C_SCL HS_MIC MAX14526_I2C_SDA MAX14526 MAX14526_I2C_SCL MAX14526_INT Head Set FM_ANT u-USB_connector Figure. Block diagram of Audio & Sound path Copyright © 2009 LG Electronics. Inc. All right reserved. - 55 - LGE Internal Use Only Only for training and service purposes...

  • Page 55: Only For Training And Service Purposes

    The DSP audio processing is configured through the QDSP5000 command types and is not directly controlled by the microprocessor. 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

    3. TECHNICAL BRIEF Figure. Detailed diagram of MSM7200A audio interface Copyright © 2009 LG Electronics. Inc. All right reserved. - 57 - LGE Internal Use Only Only for training and service purposes...

  • Page 57: Only For Training And Service Purposes

    The LM49150’s superior click and pop suppression eliminates audible transients on power-up/down and during shutdown. The LM49150 is available in a ultra-small 20-bump micro SMD package (2.225mm X 2.644mm). 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

    3. TECHNICAL BRIEF Figure. Detailed diagram of LM49150 audio interface Copyright © 2009 LG Electronics. Inc. All right reserved. - 59 - LGE Internal Use Only Only for training and service purposes...

  • Page 59: Only For Training And Service Purposes

    R402 Rev.D FB402 ATOS ENRY0008501(Reverse Type) SFSB0007103 2.2K HS_MIC AUD1 AUD2 VREG_MSMP_2.6V C407 ISET Rev.C MAX14526_I2C_SCL MAX14526_I2C_SDA MAX14526_INT 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

    C514 220n HPH_L LM49150TLX Rev.1.0 EUSY0365301 SFSB0008102 C515 2.2u FB505 BYPASS LOUT I2CVDD AUDIO_I2C_SDA AUDIO_I2C_SCL VO_LDO C518 0.1u Copyright © 2009 LG Electronics. Inc. All right reserved. - 61 - LGE Internal Use Only Only for training and service purposes...

  • Page 61: Camera Interface

    3. TECHNICAL BRIEF 3.15 Camera interface GM730/GM735 has two cameras : 5M Pixel CMOS Camera and VGA camera. Below figures shows the 5M camera I/F and ISP Block. 3.15.1 5 Mega Camera Interface CAM_DVDD_1.8V CAM_AVDD_2.8V C103 C104 2.2u 2.2u Rev.1.0...

  • Page 62: Only For Training And Service Purposes

    MSM7200A again. The camera module is controlled by I2C port from MSM7200A via ISP. Copyright © 2009 LG Electronics. Inc. All right reserved. - 63 - LGE Internal Use Only...

  • Page 63: Only For Training And Service Purposes

    (max.30fps@VGA), vertical sync signal, horizontal sync signal, reset signal and 8bits data from camera module. The camera module is controlled by I2C port from MSM7200A. LGE Internal Use Only - 64 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 64: Only For Training And Service Purposes

    Delete C136 IOUT C134 C132 C133 C135 REV C C131 R118 Luminance Sensor EUSY0343701 Figure. Schematic of Sub PMIC Copyright © 2009 LG Electronics. Inc. All right reserved. - 65 - LGE Internal Use Only Only for training and service purposes...
  • Page 65 3.0’ TFT LCD LCD_CS_N LCD_CS_N LCD_RESET_N LCD_RESET_N I/O Vcc(1.8V) VREG_MSME_1.8V Vcc(2.8V) VREG_LCD_2.8V PM7540 Figure. LCD I/F Block Diagram LGE Internal Use Only - 66 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 66: Only For Training And Service Purposes

    WLED4 WLED5 WLED2 WLED3 WLED_PWR WLED1 D105 C128 2.2u VSMF05LCC Figure. Schematic of LCD connector (in Sub PCB) Copyright © 2009 LG Electronics. Inc. All right reserved. - 67 - LGE Internal Use Only Only for training and service purposes...

  • Page 67: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Table. Interface between LCD Module and Main Board LGE Internal Use Only - 68 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 68: Proximity Sensor

    Figure. Proximity Sensor Block Diagram MSM7200A(U202) GPIO91: PROX_LEDON PWM Output(17.5 kHz) QSDL-M900 PROX_ADC To PMIC(U406) MPP_2(N2) MSM7200A(U202) GPIO 30: MSM Disable PROX_EN_N Copyright © 2009 LG Electronics. Inc. All right reserved. - 69 - LGE Internal Use Only Only for training and service purposes...

  • Page 69: Luminance Sensor

    C132 C133 C135 REV C C131 R118 Luminance Sensor EUSY0343701 Luminance Sensor Block Diagram (BD6083GUL) U103 U104 MSM7200A LGE Internal Use Only - 70 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 70: Motion Sensor

    Sub Board MSM7200A MSM7200A VREG_MSMP_2.6V GPIO 49 : Motion_INT U200 U200 MMA7660FC GPIO42 : Motion_I2C_SDA MMA7660FC GPIO41 : Motion_I2C_SCL Copyright © 2009 LG Electronics. Inc. All right reserved. - 71 - LGE Internal Use Only Only for training and service purposes...

  • Page 71: Trouble Shooting

    1.TROUBLE SHOOTING 4. TROUBLE SHOOTING 4. TROUBLE SHOOTING 4.1 RF Component LGE Internal Use Only - 72 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 72: Only For Training And Service Purposes

    RF component (BT/WLAN MODULE, WCDMA(I) Diversity, Antenna PAD) Reference Description U503 BT/WLAN Module FL102 WCDMA (I) Diversity RX Filter Copyright © 2009 LG Electronics. Inc. All right reserved. - 73 - LGE Internal Use Only Only for training and service purposes...

  • Page 73: Signal Path

    4. TROUBLE SHOOTING 1.TROUBLE SHOOTING 4.2 SIGNAL PATH GSM850/GSM900/DCS/PCS’s RX/TX Signal PATH A. GSM850/GSM900/DCS1800/PCS1900 RX PATH B. GSM850/GSM900/DCS1800/PCS1900 TX PATH LGE Internal Use Only - 74 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 74: Only For Training And Service Purposes

    WCDMA I,II and VIII Band RX Signal PATH C. WCDMA 1900 RX PATH D. WCDMA 900 RX PATH E. WCDMA 2100 RX PATH Copyright © 2009 LG Electronics. Inc. All right reserved. - 75 - LGE Internal Use Only Only for training and service purposes...

  • Page 75: Only For Training And Service Purposes

    WCDMA I,II and VIII Band TX Signal PATH C1. WCDMA 1900 TX PATH D1. WCDMA 900 TX PATH E1. WCDMA 2100 TX PATH LGE Internal Use Only - 76 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 76: Only For Training And Service Purposes

    4. TROUBLE SHOOTING 1.TROUBLE SHOOTING GPS Signal PATH F. GPS Rx PATH Copyright © 2009 LG Electronics. Inc. All right reserved. - 77 - LGE Internal Use Only Only for training and service purposes...

  • Page 77: Checking Tcxo Block

    C252 R208 100K 0.1u NL17SZ14DFT2 R211 C254 100p USBH_REF_CLK U201 C263 100p Schematic of the Crystal Part (19.2MHz) LGE Internal Use Only - 78 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 78: Only For Training And Service Purposes

    2.4V ≥ Voltage ≥ 0.4V Check MSM6280 Check TP3 Check soldering and 19.2 MHz Signal components TCXO is OK Copyright © 2009 LG Electronics. Inc. All right reserved. - 79 - LGE Internal Use Only Only for training and service purposes...

  • Page 79: Checking Front End Module(Fem) Block

    4. TROUBLE SHOOTING 1.TROUBLE SHOOTING 4.4 Checking Front End Module(FEM) Block LGE Internal Use Only - 80 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 80: Only For Training And Service Purposes

    GND11 R108 2.2K GND12 VAPC GND13 VBATT C137 +VPWR Rev.B C142 C146 Schematic of the Antenna Switch Block Copyright © 2009 LG Electronics. Inc. All right reserved. - 81 - LGE Internal Use Only Only for training and service purposes...

  • Page 81: Only For Training And Service Purposes

    1 .2 V < Voltage < 3 V Check TP 1 VBATT Check the Logic In each mode LGE Internal Use Only - 82 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 82: Checking Wcdma Block

    4. TROUBLE SHOOTING 1.TROUBLE SHOOTING 4.5 Checking WCDMA Block Copyright © 2009 LG Electronics. Inc. All right reserved. - 83 - LGE Internal Use Only Only for training and service purposes...

  • Page 83: Only For Training And Service Purposes

    Refer to 4.3 4.5.2. Checking ASM(FEM) Block Refer to 4.4 4.5.3. Checking RF TX Level Test Point (TX Level) LGE Internal Use Only - 84 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 84: Only For Training And Service Purposes

    GND2 GND4 SMPY0019501 100p 100p 0.75p 3.9nH GND3 GND5 C226 Rev.B RX_WCDMA_1900_M Band II 1.5nH SDMY0002401 Rev.C B7686 Copyright © 2009 LG Electronics. Inc. All right reserved. - 85 - LGE Internal Use Only Only for training and service purposes...

  • Page 85: Only For Training And Service Purposes

    RTR6285 Maximum output Power = 7 dBm RTR6285 minimum output Power = -80 dBm PAM(ACPM-7381) = Maximum input Power = 10 dBm LGE Internal Use Only - 86 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 86: Only For Training And Service Purposes

    PAM control signal PA_ON(WCDMA_900_ON(C182), WCDMA_1900_ON(C222) and WCDMA_2100_ON(C193) : PAM Enable PA_RO: PAM Gain Control PA_ON must be HIGH (over 2.6V) Copyright © 2009 LG Electronics. Inc. All right reserved. - 87 - LGE Internal Use Only Only for training and service purposes...

  • Page 87: Only For Training And Service Purposes

    When PAM is under the operation of high power mode (PA_R0(C194,C223):Low), PAM OUT power must be over 21 dBm PAM IN power must be under 10 dBm LGE Internal Use Only - 88 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 88: Only For Training And Service Purposes

    VMODE1 WCDMA_PA_R0 C220 C221 GND1 VENABLE WCDMA_1900_ON 1.5p C222 C223 30 - 1990) MHz SMPY0019501 100p 100p Rev.B Copyright © 2009 LG Electronics. Inc. All right reserved. - 89 - LGE Internal Use Only Only for training and service purposes...

  • Page 89: Only For Training And Service Purposes

    Check TP2 Check MSM6280 PA_R0 ≥ 2.6 V Check TP1 Check RTR6285 Over 10 dBm? Change the board LGE Internal Use Only - 90 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 90: Only For Training And Service Purposes

    4. TROUBLE SHOOTING 1.TROUBLE SHOOTING 4.5.5. Checking RF Rx Level Test Point (RF Rx Level) Copyright © 2009 LG Electronics. Inc. All right reserved. - 91 - LGE Internal Use Only Only for training and service purposes...

  • Page 91: Only For Training And Service Purposes

    WCDMA1 WCDMA_2100_RTX GND9 WCDMA2 WCDMA_900_RTX GND10 WCDMA3 WCDMA_1900_RTX GND11 R108 2.2K GND12 VAPC GSM_PA_RAMP GND13 VBATT C137 VPWR LGE Internal Use Only - 92 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 92: Only For Training And Service Purposes

    C174 2.2nH 1.5nH FL106 B9411 C176 C177 C179 RX_WCDMA_2100_LNA_OUT W2100 RX(21 _OUT 0.5p C180 L115 C181 SFSY0035001 1.5nH Copyright © 2009 LG Electronics. Inc. All right reserved. - 93 - LGE Internal Use Only Only for training and service purposes...

  • Page 93: Only For Training And Service Purposes

    Check Duplexer Signal exist ? Check TP4 Check RTR6285 and Signal exist ? Rx SAW filter Change the board LGE Internal Use Only - 94 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 94: Checking Gsm Block

    1. Check TCXO Block 2. Check ANT.SW Module 3. Check RF TRX Level 4. Re-download SW & Cal. Copyright © 2009 LG Electronics. Inc. All right reserved. - 95 - LGE Internal Use Only Only for training and service purposes...

  • Page 95: Only For Training And Service Purposes

    4.6.1. Checking TCXO Block Refer to 4.3 4.6.2. Checking FEM Block Refer to 4.4 4.6.3.1. Checking RF TX level LGE Internal Use Only - 96 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 96: Only For Training And Service Purposes

    R106 R107 GSM900(880-915 MHz) GND9 WCDMA2 GND10 WCDMA3 GND11 GND12 VAPC GND13 VBATT Schematic of GSM/DCS/PCS Tx Block Copyright © 2009 LG Electronics. Inc. All right reserved. - 97 - LGE Internal Use Only Only for training and service purposes...

  • Page 97: Only For Training And Service Purposes

    If DCS/PCS(TP3) under 6 dBm ? No Problem Check soldering and Check RTR & PAD components Still exist Problem Change the board LGE Internal Use Only - 98 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 98: Only For Training And Service Purposes

    4. TROUBLE SHOOTING 1.TROUBLE SHOOTING 4.6.3.2. Checking RF Rx Block Copyright © 2009 LG Electronics. Inc. All right reserved. - 99 - LGE Internal Use Only Only for training and service purposes...

  • Page 99: Only For Training And Service Purposes

    PCS(1930-1990 MHz) 4.7nH L109 Rev.C C148 2.7p RX_PCS_P Rev.C L103, L106, L109, L112 Removed Schematic of GSM/DCS/PCS Rx Block LGE Internal Use Only - 100 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 100: Only For Training And Service Purposes

    4. TROUBLE SHOOTING 1.TROUBLE SHOOTING Check FEM Block Refer 1.4 Copyright © 2009 LG Electronics. Inc. All right reserved. - 101 - LGE Internal Use Only Only for training and service purposes...

  • Page 101: Power On Troubleshooting

    X401 : 32.768Khz Check an U203 SMT status by X-ray Exchange U203 or Change the Main board And Retest LGE Internal Use Only - 102 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 102: Only For Training And Service Purposes

    C446 : VMSME_1.8V R423 : 19.2Mhz X401 : 32.768Khz C461 : VTCXO_2.85V C457: VMSMA_2.6V [ GM730/GM735 Main PCB Bottom ] Copyright © 2009 LG Electronics. Inc. All right reserved. - 103 - LGE Internal Use Only Only for training and service purposes...

  • Page 103: Charger Troubleshooting

    - Charging current path - Check the OVP Circuit - Battery - Check the charging current Path - Check the battery LGE Internal Use Only - 104 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 104: Only For Training And Service Purposes

    Check an U203 SMT status by X-ray Exchange U203 or Change the Main board And Retest [ Charger Troubleshooting Flow ] Copyright © 2009 LG Electronics. Inc. All right reserved. - 105 - LGE Internal Use Only Only for training and service purposes...

  • Page 105: Only For Training And Service Purposes

    4. TROUBLE SHOOTING R421 U404 U401 CN401 : u-USB FL401 [ Charging part ] LGE Internal Use Only - 106 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 106: Usb Trouble

    Is signal out ? VREG_USB_1.8V is about Check U405 to 1.8(R462)V? Check U402 USB_DM/DP signal is out? Change the Main board Copyright © 2009 LG Electronics. Inc. All right reserved. - 107 - LGE Internal Use Only Only for training and service purposes...

  • Page 107: Only For Training And Service Purposes

    AUD2 Rev.D VREG_MSMP_2.6V C407 ISET Rev.C Rev.A ENRY0007801(Cut-off Type) Rev.B ENRY0008701(Normal Type) MAX14526_I2C_SCL ATOS ENRY0008501(Reverse Type) MAX14526_I2C_SDA MAX14526_INT LGE Internal Use Only - 108 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 108: Audio Trouble

    Check the U503 at Speaker Solder pads? CN202 L203 68nH Can you hear the tone? SPKR_P SPKR_N L204 68nH Copyright © 2009 LG Electronics. Inc. All right reserved. - 109 - LGE Internal Use Only Only for training and service purposes...
  • Page 109 4. TROUBLE SHOOTING U501 (Analog S/W R501, R502 Speaker Solder Pads R501,R502 LGE Internal Use Only - 110 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 110 Main b’d IC401 MAX14526EEWP_TCC6 COM1 USBH_DM COM2 USBH_DP UART3_RX UART3_TX Rev.D FB402 SFSB0007103 HS_MIC AUD1 AUD2 VREG_MSMP_2.6V ISET Rev.C Copyright © 2009 LG Electronics. Inc. All right reserved. - 111 - LGE Internal Use Only Only for training and service purposes...
  • Page 111 4. TROUBLE SHOOTING C409, C410 CN401 U503 (audio subsystem) C513, C514 output C513, C514 C409, C410 output LGE Internal Use Only - 112 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 112 Can you hear the tone? Change the speaker CN202 L203 68nH SPKR_P SPKR_N L204 68nH Copyright © 2009 LG Electronics. Inc. All right reserved. - 113 - LGE Internal Use Only Only for training and service purposes...
  • Page 113 4. TROUBLE SHOOTING U501 U503 C511 C512 Speaker Solder Pads C511, C512 output LGE Internal Use Only - 114 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 114 MIC Can you scoping some Change the MIC sound signal at C255,C256? Work well? Copyright © 2009 LG Electronics. Inc. All right reserved. - 115 - LGE Internal Use Only Only for training and service purposes...
  • Page 115 4. TROUBLE SHOOTING FB202 Main MIC (MIC201) C246 C255, C256 MIC- 1kHz tone- C255, C256 LGE Internal Use Only - 116 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 116 Check the IC401 or Can you scoping some Change the Main B’d sound signal at FB402,C258? Work well? Copyright © 2009 LG Electronics. Inc. All right reserved. - 117 - LGE Internal Use Only Only for training and service purposes...
  • Page 117 4. TROUBLE SHOOTING MUIC(MAX14526) R402(MIC BIAS) FB402(MIC SIGNAL) C258(HS_MIC) MIC- 1kHz tone- C258 LGE Internal Use Only - 118 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 118: Camera Trouble

    Check the EMI/ESD filter (FL101) Change the camera Change the Filter (FL101) Camera is OK Change the Sub board Copyright © 2009 LG Electronics. Inc. All right reserved. - 119 - LGE Internal Use Only Only for training and service purposes...
  • Page 119 CAMERA EMI/ESD Filter (FL101) 24MHz Master Clock from ISP 48MHz Pixel Clock from ISP (R105) (R101) CAM_IOVDD_2.8V 5MCAM_RESET_N (C226) (D101) LGE Internal Use Only - 120 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 120 FB105 C116 C115 0.1u CAM_IOVDD_2.8V Rev.B 24MHz Master Clock from ISP 48MHz Pixel Clock from ISP (R105) (R101) Copyright © 2009 LG Electronics. Inc. All right reserved. - 121 - LGE Internal Use Only Only for training and service purposes...

  • Page 121: Vga Camera Trouble

    (FL201, FL202, FL203) Change the camera Change the Filter (FL201, FL202, FL203) Camera is OK Change the Sub board LGE Internal Use Only - 122 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 122 4. TROUBLE SHOOTING VGA_DVDD_1.8V (C132) VGA_AVDD_2.8V, VGA_IOVDD_2.8V (C135) VGA_RESET_N (D201) 19.2MHz Pixel Clock (FL203) Copyright © 2009 LG Electronics. Inc. All right reserved. - 123 - LGE Internal Use Only Only for training and service purposes...

  • Page 123: Vga Camera

    INOUT_A2 INOUT_B2 FLT_CAM_HSYNC CAM_VSYNC FLT_CAM_VSYNC INOUT_A3 INOUT_B3 0.1u INOUT_A4 INOUT_B4 FL203 1608 VGA_RESET_N 19.2MHz Pixel Clock (D201) (FL203) LGE Internal Use Only - 124 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 124: Main Lcd Trouble

    Check VREG_LCD_2.8V, VREG_MSME_1.8V LCD_RESET_N in Sub BD Change the Main BD Display OK? Change the LCD module The LCD works Copyright © 2009 LG Electronics. Inc. All right reserved. - 125 - LGE Internal Use Only Only for training and service purposes...
  • Page 125 MDDI_P_DATA_P Delete LCD_VSYNC REV C MDDI_P_STB_M MDDI_P_STB_P LCD_RESET_N WLED4 WLED5 WLED2 WLED3 WLED_PWR WLED1 D105 C128 2.2u VSMF05LCC LGE Internal Use Only - 126 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 126: Sim Detect Troubleshooting

    Work well? VRUIM_3.0V is 2.85V? Check J101 SIM_CLK is run? Change SIM card Work well? Change the Sub board Copyright © 2009 LG Electronics. Inc. All right reserved. - 127 - LGE Internal Use Only Only for training and service purposes...
  • Page 127 SIM_IO SIM_RST C2_RST C6_VPP C1_VCC C5_GND C125 C137 VREG_RUIM_3.0V VSMF05LCC SIM_CLK SIM_IO SIM_RST D106 Figure .USIM part schematics LGE Internal Use Only - 128 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 128: Keypad Backlight Troubleshooting

    Check an U203 SMT status by X-ray Exchange U203 or Change the Main board And Retest VPWR KPD_DRV_N Copyright © 2009 LG Electronics. Inc. All right reserved. - 129 - LGE Internal Use Only Only for training and service purposes...

  • Page 129: Linear Motor

    L201 U202 SM100 82nH VB201 LIN_MOTOR_EN LIN_MOT_PWM L202 82nH TYPE Linear Motor Conn. R208 C206 C205 240K 3900p LGE Internal Use Only - 130 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 130: Proximity Sensor On/Off Trouble

    Change the SUB Board Change the IrDA sensor PROX_ADC signal output U201 Change the Main Board Work well? Copyright © 2009 LG Electronics. Inc. All right reserved. - 131 - LGE Internal Use Only Only for training and service purposes...
  • Page 131 0.2 ~ 2.6 V PROX_LEDON signal output 17.5 kHz VREG_PROXI_2.6V PROX_ADC DOUT disable Figure. Engineer Mode Proximity Test LGE Internal Use Only - 132 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 132: Luminance Sensor On/Off Trouble

    Change the Sub Board Change the Luminance sensor U104 GC1 / 2 signal output U104 Work well? Change the Sub Board Copyright © 2009 LG Electronics. Inc. All right reserved. - 133 - LGE Internal Use Only Only for training and service purposes...
  • Page 133 C132 C133 C135 REV C C131 R118 Luminance Sensor EUSY0343701 +VPWR (C122) VREG_MSMP_2.6V (C124) BL_I2C_SDA (R113) BL_I2C_SCL (R112) LGE Internal Use Only - 134 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 134: Motion Sensor On/Off Trouble

    Change the Sub Board Change the Motion sensor MOTION_I2C_SDA / SCL U200 output Work well? Change the Sub Board Copyright © 2009 LG Electronics. Inc. All right reserved. - 135 - LGE Internal Use Only Only for training and service purposes...
  • Page 135 MMA7660FC AVSS1 DVDD AVDD DVSS AVSS2 MOTION_I2C_SDA TP202 MOTION_INT MOTION_I2C_SCL MOTION_INT (TP202) MOTION_I2C_SCL (R204) MOTION_I2C_SDA (R205) VREG_MSMP_2.6V (C204) LGE Internal Use Only - 136 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 136: Downloading

    MDP allows multi downloading up to 16 handsets at the same time. • GM730/GM735 does NOT use LG USB driver but LG SP USB driver. LG SP USB driver is used for only smart phone which is based on Windows Mobile OS.

  • Page 137: Downloading Procedure

    • Now, the phone is ready to communicate with LGMDP to download images. LED is green USB Cable Both of the ‘Emergency download’ Volume keys image displayed LGE Internal Use Only - 138 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 138 Check the LED is green. ‘Emergency download’ image displayed Volume up & down Copyright © 2009 LG Electronics. Inc. All right reserved. - 139 - LGE Internal Use Only Only for training and service purposes...

  • Page 139: Connecting To Pc

    Enable for the port to be connected for downloading images. Then click on the Connect button. (The port number(COM4) might be different ) GM730/GM735 GM730/GM735 LGE Internal Use Only - 140 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 140 • The status Ready is displayed and the window from which user can choose the image fi les to be down- loaded to the phone is showed up. GM730/GM735 GM730/GM735 Copyright © 2009 LG Electronics. Inc. All right reserved. - 141 - LGE Internal Use Only Only for training and service purposes...
  • Page 141 5. Downloading 5.2.3 Choosing image fi les • Select the image folder, where all the image fi les are located, by clicking on the Browse…. , then LG- MDP automatically loads images of the folder accordingly. (The folder name shall be different from that of the folder name in the snapshot. The folder name indi- cates the path where the image fi...
  • Page 142 PC. This method, however, is not recommended since user can make mistake to choose wrong image fi le. The phone in which wrong image fi le is downloaded might not be working. Copyright © 2009 LG Electronics. Inc. All right reserved. - 143 -...
  • Page 143 It is recommended that you never choose this option menu. Just leave it as default value(Reset Database & Contents). Don’t choose Erase EFS! LGE Internal Use Only - 144 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 144 Start button to start downloading. Once you click it, a summary of the selected image fi les and option information window will be displayed. Just click Yes button, then downloading process is started. Copyright © 2009 LG Electronics. Inc. All right reserved. - 145 - LGE Internal Use Only...
  • Page 145 5. Downloading 5.2.4 Downloading Downloading all the image files. GM730/GM735 Downloading process completed successfully GM730/GM735 LGE Internal Use Only - 146 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 146: Block Diagram

    6. BLOCK DIAGRAM 6. BLOCK DIAGRAM System HW Block Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 147 - LGE Internal Use Only Only for training and service purposes...
  • Page 147 6. BLOCK DIAGRAM System HW Block Diagram LGE Internal Use Only - 148 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 148 6. BLOCK DIAGRAM System HW Block Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 149 - LGE Internal Use Only Only for training and service purposes...
  • Page 149 6. BLOCK DIAGRAM System HW Block Diagram LGE Internal Use Only - 150 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 150 6. BLOCK DIAGRAM System HW Block Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 151 - LGE Internal Use Only Only for training and service purposes...
  • Page 151 6. BLOCK DIAGRAM System HW Block Diagram LGE Internal Use Only - 152 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 152 6. BLOCK DIAGRAM System HW Block Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 153 - LGE Internal Use Only Only for training and service purposes...
  • Page 153 6. BLOCK DIAGRAM System HW Block Diagram LGE Internal Use Only - 154 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 154 6. BLOCK DIAGRAM System HW Block Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 155 - LGE Internal Use Only Only for training and service purposes...
  • Page 155 6. BLOCK DIAGRAM System HW Block Diagram LGE Internal Use Only - 156 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 156: Circuit Diagram

    GPS_LNA_EN Rev.B C224 C225 6.8K FIL_OUT GPS_IN RX_WCDMA_1900_M Band II 1.5nH RTR6285 SDMY0002401 C227 ALM-1412 SMZY0016501 Rev.C B7686 Copyright © 2009 LG Electronics. Inc. All right reserved. - 157 - LGE Internal Use Only Only for training and service purposes...
  • Page 157 UTXD Workaround for Reset from USB Suspend : MPP15 MSM7200A&JTAG R221 USBH_DATA[0] USB_SUSPEND C270 OJ203 OJ204 1000p LGMC LGE Internal Use Only - 158 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 158 All VREG_MSMA related decoupling caps should attach to inner GND plane SDRAM_ADDR13 deleted @ Rev.D Route together VREG_MSMC2_1.2V VREG_MSMP_2.6V Near to U201 R307 VSNS_MSMC2_1.2V 0603 Copyright © 2009 LG Electronics. Inc. All right reserved. - 159 - LGE Internal Use Only Only for training and service purposes...
  • Page 159 KPD_PWR_N KPD_DRV_N KPD_DRV_N PON_RESET_N nPON_RST D402 LCD_DRV_N PS_HOLD PS_HOLD FLSH_DRV_N KDS114E PM7540&HS-USB C467 JTAG_PS_HOLD R424 200K PRSB6.8C D403 LGE Internal Use Only - 160 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 160 DAT1 MMC_DATA[1] MMC_DATA[3] DAT3 DAT0 MMC_DATA[0] 1.1T MMC_CMD MMC_CLK GND1 GND3 GND2 GND4 MMC_CD Close HIGH (detect) Open Copyright © 2009 LG Electronics. Inc. All right reserved. - 161 - LGE Internal Use Only Only for training and service purposes...
  • Page 161 SIM_CLK TOUCH_X1XR EUSY0343701 SIM_IO SIM_RST D106 GM730 Sub-PCB TP306 TP307 TP308 TP309 PCB mark for mfg Rev C LGE Internal Use Only - 162 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 162 MIC_1N KPD_DRV_N LEDR L204 68nH FB202 MIC_1P SPU0410HR5H-PB SUMY0010609 KTK5132E SMD, TOP Q202 LEDG KTK5132E Q203 LEDB AUDIO&SENSORs Copyright © 2009 LG Electronics. Inc. All right reserved. - 163 - LGE Internal Use Only Only for training and service purposes...
  • Page 163 SIM_CLK CAM_I2C_SDA SIM_IO CAM_I2C_SCL ENBY0042801 S : 18.5 X 3.6 AXT680124 H : 17.8 X 2.6 (Header, 1.0T) LGE Internal Use Only - 164 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 164: Bga Pin Map

    9. BGA Pin Map 8. BGA Pin Map 1. U203 (EUSY0344203) 1. U203 (EUSY0344203) 1. U203 (EUSY0344203) BOTTOM VIEW Don’t use Copyright © 2009 LG Electronics. Inc. All right reserved. - 165 - LGE Internal Use Only Only for training and service purposes...
  • Page 165 8. BGA Pin Map . U305 (EUSY0344203) 2. U305 (EUSY0344203) 2. U305 (EUSY0344203) Don’t use LGE Internal Use Only - 166 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 166 8. BGA Pin Map 3. IC401 (EUSY0371201) 3. IC401 (EUSY0371201) Don’t use Copyright © 2009 LG Electronics. Inc. All right reserved. - 167 - LGE Internal Use Only Only for training and service purposes...
  • Page 167 8. BGA Pin Map 4. U402 (EUSY0320201) 4. U402 (EUSY0320201) Don’t use LGE Internal Use Only - 168 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 168 8. BGA Pin Map 5. U405 (EUSY0342201) 5. U405 (EUSY0342201) Don’t use BOTTOM VIEW Copyright © 2009 LG Electronics. Inc. All right reserved. - 169 - LGE Internal Use Only Only for training and service purposes...
  • Page 169 8. BGA Pin Map 6. U502 (EUSY0365301) 6. U502 (EUSY0365301) LGE Internal Use Only - 170 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 170 8. BGA Pin Map 7. U101 (Sub/EUSY0321201) 7. U101 (Sub/EUSY0321201) Don’t use Copyright © 2009 LG Electronics. Inc. All right reserved. - 171 - LGE Internal Use Only Only for training and service purposes...
  • Page 171 8. BGA Pin Map 8. U103 (Sub/EUSY0383101) 8. U103 (Sub/EUSY0383101) Don’t use LGE Internal Use Only - 172 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 172: Pcb Layout

    U405 PM7540 (PMIC) Can not power on Can not chargeNo Service CN402 Battery Conn. Can not power onCan not detect battery GM730/GM735 Copyright © 2009 LG Electronics. Inc. All right reserved. - 173 - LGE Internal Use Only Only for training and service purposes...
  • Page 173 Charge U403 Fuel Gauge IC.Can not FL105(VIII)/FL109(I)/FL112(II) check Battery Level DuplexerWCDMA TX Power & RX SensitivityNo Service GM730/GM735 LGE Internal Use Only - 174 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 174 SW201 Camera KeyCan not operate camera. MIC201 MIC.Can not record or send user voice. GM730/GM735 Copyright © 2009 LG Electronics. Inc. All right reserved. - 175 - LGE Internal Use Only Only for training and service purposes...
  • Page 175 J101 USIM Socket Can not detect USIM. CN302 Optical Joystick Conn. Can not operate Optical Joystick. GM730/GM735 LGE Internal Use Only - 176 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 176: Calibration & Rf Auto Test Program (Tachyon)

    10. Calibration & RF Auto Test Program (Tachyon) 10.1 Confi guration of Tachyon 10.1.1 Confi guration of directory Copyright © 2009 LG Electronics. Inc. All right reserved. - 177 - LGE Internal Use Only Only for training and service purposes...
  • Page 177 It consists of default values. ‘MODEL NAME’_NV.INI It is written when ‘cal&auto’ is begun. ‘MODEL NAME’_Sequence.XML It is described a testing procedures. LGE Internal Use Only - 178 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 178: How To Use Tachyon

    Click the icon, in tool bar. Then, you can see the below screen b. Select the chipset “Qualcomm” Copyright © 2009 LG Electronics. Inc. All right reserved. - 179 - LGE Internal Use Only Only for training and service purposes...
  • Page 179 Select the model You should select “GM730/GM735” d. Select the buyer (must be double clicked) e. Click select button LGE Internal Use Only - 180 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 180 - Test command send. 2) Calibration 3) Auto test 4) After action - Phone reset - Change UE to AMSS Copyright © 2009 LG Electronics. Inc. All right reserved. - 181 - LGE Internal Use Only Only for training and service purposes...

  • Page 181: Test Mode

    11. Test Mode 11. Test Mode LGE Internal Use Only - 182 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 182 11. Test Mode Smart Phone GM730/GM735 (1) Copyright © 2009 LG Electronics. Inc. All right reserved. - 183 - LGE Internal Use Only Only for training and service purposes...
  • Page 183 11. Test Mode Smart Phone GM730/GM735 (2) LGE Internal Use Only - 184 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 184 11. Test Mode Smart Phone GM730/GM735 (3) Copyright © 2009 LG Electronics. Inc. All right reserved. - 185 - LGE Internal Use Only Only for training and service purposes...
  • Page 185 11. Test Mode Smart Phone GM730/GM735 (4) LGE Internal Use Only - 186 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 186 11. Test Mode Smart Phone GM730/GM735 (5) Copyright © 2009 LG Electronics. Inc. All right reserved. - 187 - LGE Internal Use Only Only for training and service purposes...
  • Page 187 11. Test Mode Smart Phone GM730/GM735 (6) LGE Internal Use Only - 188 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 188 11. Test Mode Smart Phone GM730/GM735 (7) Copyright © 2009 LG Electronics. Inc. All right reserved. - 189 - LGE Internal Use Only Only for training and service purposes...
  • Page 189 11. Test Mode Smart Phone GM730/GM735 (8) LGE Internal Use Only - 190 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 190: Exploded View & Replacement Part List

    12. EXPLODED VIEW & REPLACEMENT PART LIST 12.1 EXPLODED VIEW Copyright © 2009 LG Electronics. Inc. All right reserved. - 191 - LGE Internal Use Only Only for training and service purposes...
  • Page 191 ASS’Y EXPLODED VIEW LGE Internal Use Only - 192 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 192: Replacement Parts

    MIAA0025601 COMPLEX, (empty), , , , , COLOR MPBH00 PAD,MIKE MPBH0047601 COMPLEX, (empty), , , , , BLACK Copyright © 2009 LG Electronics. Inc. All right reserved. - 193 - LGE Internal Use Only Only for training and service purposes...
  • Page 193 MPBF0046901 COMPLEX, (empty), , , , , BLACK MPBG00 PAD,LCD MPBG0092601 COMPLEX, (empty), , , , , BLACK LGE Internal Use Only - 194 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 194 PRESS, STS, , , , , COLOR WITHOUT MFEA00 FRAME,SHIELD MFEA0027001 PRESS, STS, , , , , COLOR Copyright © 2009 LG Electronics. Inc. All right reserved. - 195 - LGE Internal Use Only Only for training and service purposes...

  • Page 195: Main Component

    ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP C121 CAP,CHIP,MAKER ECZH0001215 1 uF,10V ,K ,X5R ,TC ,1005 ,R/TP LGE Internal Use Only - 196 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 196 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C227 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 197 - LGE Internal Use Only Only for training and service purposes...
  • Page 197 SMD ,ESD Common mode Filter ,; ,Filter,LCR FL201 FILTER,EMI/POWER SFEY0013701 SMD ,18 V,4ch. EMI_ESD Filter (100 Ohm, 7.5pF) LGE Internal Use Only - 198 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 198 100 Kohm,1/16W ,J ,1005 ,R/TP R203 RES,CHIP,MAKER ERHZ0000405 10 Kohm,1/16W ,J ,1005 ,R/TP R204 RES,CHIP ERHY0000254 4.7K ohm,1/16W,J,1005,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 199 - LGE Internal Use Only Only for training and service purposes...
  • Page 199 300mA/300mA ,; ,IC,LDO Voltage Regulator VA201 DIODE,TVS EDTY0008606 DFN-2 ,7.82 V,150 mW,R/TP ,PB-FREE VA202 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005 LGE Internal Use Only - 200 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 200 ,-2.0 ,50 ,3.0 SPKY PCB,SIDEKEY SPKY0073501 POLYI ,0.2 mm,DOUBLE ,GM730 SIDEKEY ,; , , , , , , , , , Copyright © 2009 LG Electronics. Inc. All right reserved. - 201 - LGE Internal Use Only Only for training and service purposes...
  • Page 201 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C260 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP LGE Internal Use Only - 202 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 202 ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C319 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C320 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 203 - LGE Internal Use Only Only for training and service purposes...
  • Page 203 4.7 uF,10V ,M ,X5R ,TC ,1608 ,R/TP C406 CAP,CERAMIC,CHIP ECCH0000138 390 pF,50V,K,X7R,HD,1005,R/TP C407 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP LGE Internal Use Only - 204 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 204 ,[empty] , ,[empty] ,[empty] ,[empty] ,[empty] C439 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C440 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 205 - LGE Internal Use Only Only for training and service purposes...
  • Page 205 ECCH0005603 2.2 uF,10V ,K ,X5R ,TC ,1608 ,R/TP C510 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP LGE Internal Use Only - 206 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 206 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP 5 , mm,ETC , , ,; , ,0.60MM ,[empty] ,RECEPTACLE CN401 CONNECTOR,I/O ENRY0008701 ,[empty] ,[empty] , Copyright © 2009 LG Electronics. Inc. All right reserved. - 207 - LGE Internal Use Only Only for training and service purposes...
  • Page 207 ,Inductor,Wire Wound,Chip L503 INDUCTOR,SMD,POWER ELCP0008001 4.7 uH,M ,2.5*2.0*1.0 ,R/TP , R201 RES,CHIP,MAKER ERHZ0000222 150 Kohm,1/16W ,F ,1005 ,R/TP LGE Internal Use Only - 208 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 208 80.6 Kohm,1/16W ,F ,1005 ,R/TP R417 RES,CHIP,MAKER ERHZ0000405 10 Kohm,1/16W ,J ,1005 ,R/TP R419 RES,CHIP,MAKER ERHZ0000404 1 Kohm,1/16W ,J ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 209 - LGE Internal Use Only Only for training and service purposes...
  • Page 209 19.2 MHz,1.5 PPM,10 pF,SMD ,3.3*2.5*1.0 , ,; , ,2PPM X201 VCTCXO EXSK0007802 ,2.8V , , , , ,SMD ,P/TP LGE Internal Use Only - 210 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 210 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C124 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 211 - LGE Internal Use Only Only for training and service purposes...
  • Page 211 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C158 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP LGE Internal Use Only - 212 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 212 C191 CAP,CERAMIC,CHIP ECCH0000701 1.2 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP C192 INDUCTOR,CHIP ELCH0001056 2.7 nH,S ,1005 ,R/TP ,PBFREE Copyright © 2009 LG Electronics. Inc. All right reserved. - 213 - LGE Internal Use Only Only for training and service purposes...
  • Page 213 100000 pF,16V ,Z ,X7R ,TC ,1005 ,R/TP , , ,[empty] C269 CAP,CHIP,MAKER ECZH0004402 ,[empty] ,[empty] ,[empty] ,[empty] ,[empty] C434 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP LGE Internal Use Only - 214 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 214 DUPLEXER,IMT SDMY0002401 solution ,; ,1960 ,1932.4 to 1987.6 ,1880 ,1852.4 to 1907.6 ,3.7 ,3.2 ,3.0x2.5x1.0 ,DUAL ,SMD ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 215 - LGE Internal Use Only Only for training and service purposes...
  • Page 215 91 ohm,1/16W ,J ,1005 ,R/TP R107 RES,CHIP,MAKER ERHZ0000517 91 ohm,1/16W ,J ,1005 ,R/TP R108 RES,CHIP,MAKER ERHZ0000443 2200 ohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only - 216 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 216 H, 33 ,SMD , dB,H=1.85 ,; ,3.00MM ,STRAIGHT ,RF ADAPTER SW100 CONN,RF SWITCH ENWY0005301 ,SMD ,R/TP ,AU , , Copyright © 2009 LG Electronics. Inc. All right reserved. - 217 - LGE Internal Use Only Only for training and service purposes...
  • Page 217 DFN ,8 ,R/TP ,Fuel gauge ,; ,IC,CMOS DFN8 ,1.3 W,-20 V,-3.9 A,R/TP ,Intergrated power U404 TR,FET,P-CHANNEL EQFP0008601 MOSFET with PNP Transistor LGE Internal Use Only - 218 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 218: Accessory

    MHBY0007901 COMPLEX, (empty), , , , , SILVER MHBY00 HANDSTRAP MHBY0008701 CUTTING, STS, , , , , SILVER Copyright © 2009 LG Electronics. Inc. All right reserved. - 219 - LGE Internal Use Only Only for training and service purposes...

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