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LG GD580 Service Manual

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Internal Use Only
Service Manual
GD580
Date: November, 2009 / Issue 1.0

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Summary of Contents for LG GD580

  • Page 1 Internal Use Only Service Manual GD580 Date: November, 2009 / Issue 1.0...

  • Page 2: Table Of Contents

    12.3 Accessory .............237 4.7 Main LCD Trouble ............92 4.8 Keypad Backlight Trouble ...........96 4.9 Audio Trouble Shooting ..........99 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: Abbreviation

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

  • Page 7: Only For Training And Service Purposes

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

  • Page 8: Performance

    Yes(SIM Block Type) : 3.0V & 1.8V Volume Key Push Type(+,-) Voice Key Push Type 18 Pin I/O Connect Copyright © 2009 LG Electronics. Inc. All right reserved. - 9 - LGE Internal Use Only Only for training and service purposes...

  • Page 9: Usable Environment

    Humidity max. 85 2) Environment (Accessory) Item Spec. Typ. Unit Power Available power * CLA : 12~24V (DC) LGE Internal Use Only - 10 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 10: Radio Performance

    Frequency Error ±0.1ppm ±0.1ppm ±0.1ppm 5° (RMS)↓ 5° (RMS)↓ 5° (RMS)↓ Phase Error 20° (PEAK)↓ 20° (PEAK)↓ 20° (PEAK)↓ 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

    ³ 600 kHz, < 1 800 kHz -51 dBm -56 dBm ³ 1 800 kHz -46 dBm -51 dBm LGE Internal Use Only - 12 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 12: Only For Training And Service Purposes

    -39-10*( ∆ f-7.5)dBc@ ∆ f=7.5~8.5MHz, 1M -49 dBc@ ∆ f=8.5~12.5MHz, 1M Adjacent Channel -33dBc@5MHz, ACP>-50dBm Leakage Ratio(ACLR) -43dBc@10MHz, ACP>-50dBm Copyright © 2009 LG Electronics. Inc. All right reserved. - 13 - LGE Internal Use Only Only for training and service purposes...

  • Page 13: Only For Training And Service Purposes

    Transmit Intermodulation -41dBc@10MHz, Interferer -40dBc Error Vector 17.5% (>-20dBm) Magnitude(EVM) (@12.2k, 1DPDCH+1DPCCH) -15dB@SF=4, 768kbps, Transmit OFF Power multi-code transmission LGE Internal Use Only - 14 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 14: Only For Training And Service Purposes

    Blocking Response Wanted Signal: -101dBm Unwanted Signal: Depend (TCH/FS Class II, RBER) Unwanted Signal: Depend on freq. on freq. Copyright © 2009 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...

  • Page 15: Only For Training And Service Purposes

    -46dBm CW@10MHz & Intermodulation -46dBm/3.84MHz@20MHz Characteristic UE@+20dBm output power(class3) -57dBm@f=9KHz~1GHz, 100k BW -47dBm@f=1~12.75GHz, 1M Spurious Emissions -60dBm@f=1920~1980MHz, 3.84MHz -60dBm@f=2110~2170MHz, 3.84MHz LGE Internal Use Only - 16 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 16: Only For Training And Service Purposes

    30MHz~1GHz -36dBm -57dBm Out of Band Spurious Emissions Above 1GHz~12.75GHz -30dBm -47dBm 1.8~1.9GHz -47dBm -47dBm 5.15~5.3GHz -47dBm -47dBm Copyright © 2009 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...

  • Page 17: Only For Training And Service Purposes

    Intermodluation Performance static sinwave signal at f1=-39dBm a BT modulated signal f2=-39dBm(payload PRBS15) Maximum Input Level BER ≤ 0.1%@-20dBm LGE Internal Use Only - 18 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 18: Current Consumption

    3.54 ± 0.05V BAR 1 (4%) -> Icon Blinking& 3.43 ± 0.05V Alerting Sound POWER OFF 3.20 ± 0.05V Copyright © 2009 LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes...

  • Page 19: Sound Pressure Level

    -.Acoustic(Max Vol.) SEND MS/HEADSET SLR:8±3dB REV. Headset MS/HEADSET RLR:-18±3dB / -15dB SEND (SLR/RLR : Mid-Value Settin g ) REV. LGE Internal Use Only - 20 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 20: Charging

    · Extend await mode: At Charging prohibited temperature(0°C under or 45°C over) (GSM: It should be kept 3.7V in all power level WCDMA: It will not be kept 3.7V in some power level Copyright © 2009 LG Electronics. Inc. All right reserved. - 21 - LGE Internal Use Only...

  • Page 21: Technical Brief

    - External Memory Interface that supports NAND, NOR, PSRAM, SDRAM, - JTAG - RTC - ETM (in Prototype Package) LGE Internal Use Only - 22 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 22: Only For Training And Service Purposes

    3. Technical brief GD580 Block Diagram Figure 3-1-1 GD580 Block Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 23 - LGE Internal Use Only Only for training and service purposes...

  • Page 23: Only For Training And Service Purposes

    KA100J00BA-AJYY Samsung Erase speed 1.5ms 1 Bl o ck = (128K+4K)Byte 8MByte/s Table 3-1-1. External Memory Interface Spec. of GD580 Figure 3-1-2. External Memory Configuration of GD580 Package - 107-ball FBGA Type – 10.5X13X1.2mmt, 0.8mm pitch LGE Internal Use Only - 24 - Copyright ©...

  • Page 24: Only For Training And Service Purposes

    3. Technical brief 3.1.3 Hardware Architecture A. Block Diagram Figure 3-1-3. Access system of Ericsson DB3150 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 Figure 3-1-4. Application system of Ericsson DB3150 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

    Camera module. The visual data could be graphics, still images, or video. The XGAM subsystem is handled and provided by Ericsson. Copyright © 2009 LG Electronics. Inc. All right reserved. - 27 - LGE Internal Use Only...

  • Page 27: Only For Training And Service Purposes

    ADC_Q_POS WTX_I_N DAC_I_NEG WTX_I_P DAC_I_POS WTX_Q_N DAC_Q_NEG WTX_Q_P DAC_Q_POS WPOW_DET TX_POW Figure 3-1-6. Schematic of WCDMA RF Interface 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

    ACC Transmit Data UART1 APP_GPIO_0 APP_GP00_UART_RX APP Receive Data APP_GPIO_1 APP_GP01_UART_TX APP Transmit Data Table 3-1-3. UART Interface 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

    ACC_GPIO_21 ACC_GP_BT_SPI_DAT1 Input ACC_GPIO_22 ACC_GP_BT_SPI_CLK Output Low ACC_GPIO_23 ACC_GP_LED_M_CTRL Output Low Table 3-1-4. DB3150 ACC GPIO Map Table 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

    APP_GPIO_12 APP_GP_FM_SCL Output Low APP_GPIO_13 ACC_GP_LED_M_SDA Input APP_GPIO_14 ACC_GP_LED_M_SCL Output Low Table 3-1-5. DB3150 APP GPIO Map Table 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

    If connected to DCON, it indicates a Full speed transceiver VBUS Power supply for AB3000 USB block Table 3-1-6. USB Signal Interface of DB3150 LGE Internal Use Only - 32 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 32: Only For Training And Service Purposes

    USB_DAT_VP USB_DAT_VM USB_SE0_VM USB_OE USB_OE Figure 3-1-8. Schematic of DB3150 USB block Figure 3-1-9. Schematic of USB Transceiver Copyright © 2009 LG Electronics. Inc. All right reserved. - 33 - LGE Internal Use Only Only for training and service purposes...

  • Page 33: Only For Training And Service Purposes

    If a magnet is close to the hall-effect switch(U100), the voltage at Pin 4 of U100 goes to 0V. Otherwise 1.8V. This ACC_GP_FILPSENSE signal is delivered to DB3150 ACC_GPIO13. Figure 3-1-10. Folder Open/Close Detector 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 3.1.11 Bluetooth Interface GD580 supports Bluetooth operation using ST’s STLC2593C Bluetooth module. A. General Description The Bluetooth interface utilizes the SPI interface for control signals going to and from the Bluetooth module. The SPI is also used for data transmissions.

  • Page 35: Only For Training And Service Purposes

    The clock is used in different Bluetooth modes, like sniff and park, to have a correct timing on the Bluetooth air interface without having the master clock running. LGE Internal Use Only - 36 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 36: Only For Training And Service Purposes

    – eSCO over HCI supported ■ Supports Pitch-Period Error Concealment (PPEC) ■ Efficient and flexible support for WLAN coexistence scenarios Copyright © 2009 LG Electronics. Inc. All right reserved. - 37 - LGE Internal Use Only Only for training and service purposes...

  • Page 37: Only For Training And Service Purposes

    – On chip ROM, preloaded with SW up to HCI ■ Ciphering support up to 128 bits key LGE Internal Use Only - 38 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 38: Only For Training And Service Purposes

    - HCI interface between DB3150 and STLC2593C - Audio signal interface between DB3150/AB3000 and STLC2593C - 2.4GHz, 50 ohm matching Copyright © 2009 LG Electronics. Inc. All right reserved. - 39 - LGE Internal Use Only Only for training and service purposes...

  • Page 39: Only For Training And Service Purposes

    3. Technical brief 3.1.12 MicroSD Interface card GD580 supports the MicroSD card interface as external memory card. MicroSD card has 4-data line, so GD580 uses 4-data lines. All control and data lines are connected to DB3150. Cause of the difference between DB3150 and MicroSD card, a level shifter should be added.

  • Page 40: Only For Training And Service Purposes

    Power for DB3150 Press END key PWRRSTn PWRRST RESPOW_N IRQ0_N IRQ0n ONSWAn ONSWA Figure 3-1-13. Power On Sequence 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

    Table 3-1-8. Key Matrix Mapping Table i t l i t l Figure 3-1-14. MAIN PCB Keypad Circuit 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

    - I2C Interface - LED drivers(for RGB : 3-ch, matrix LED driver : 7x7-ch) Figure 3-1-15. Matrix LED and RGB LED Copyright © 2009 LG Electronics. Inc. All right reserved. - 43 - LGE Internal Use Only Only for training and service purposes...

  • Page 43: Gam Hardware Subsystem

    GAMCON : GAM controller. GRAPHCON : graphics controller. PDI/SSI : programmable display interface for parallel/serial displays. CDI : camera data interface. 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

    8-bit data to the display. The programmable PDI block is configured at the software build stage, to support either parallel interface such as PPI or serial interface such as SSI or I2C. Copyright © 2009 LG Electronics. Inc. All right reserved. - 45 - LGE Internal Use Only...

  • Page 45: Only For Training And Service Purposes

    In this case, it must have pull-down to ground. The camera module reset signal is an output to the camera module. LGE Internal Use Only - 46 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 46: Only For Training And Service Purposes

    3.2.3 Camera & Camera Interface Figure 3-2-2. Camera Interface (in DB3150) Figure 3-2-3. 3M Camera Connector(24Pin – Main Board) 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

    3. Technical brief Figure 3-2-4. Main to LCD FPCB Connector(60Pin - Main) Figure 3-2-5. VGA Upper FPCB Connector 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

    CI_D4 IOVDD VDD_CAM_1V8 CI_D5 AVDD VDD_CAM_2V8 Table 3-2-2. Interface between VGA Camera Module and FPCB (in Upper FPCB) 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

    (3M : 2.8V for analog, 1.8V for I/O, 1.8V for digital), (VGA : 2.8V for analog, 1.8V for I/O, digital) Figure 3-2-6. 1.8V and 2.8V Camera Regulator 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

    LCD_VSYNC PDI_D7 LCD_CSN LCD_ADS LCD_RESN LCD_WEN VDDE_1V8 LCD_RDN VDDE_1V8 Table 3-2-4. Interface between LCD module and LCD FPCB 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

    Figure 3-2-7. LCD Module Block Diagram 262K TFT LCD 400 X 240 pixels Main LCD Driver IC AAT3169IFO-T1 LGE Internal Use Only - 52 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 52: Audio Part

    (PGA). The decoder has a receive volume control. The audio inputs and outputs can be switched to normal or auxiliary ports. Copyright © 2009 LG Electronics. Inc. All right reserved. - 53 - LGE Internal Use Only Only for training and service purposes...

  • Page 53: Only For Training And Service Purposes

    3. Technical brief Figure 3-3-2. Audio Interface Detailed Diagram(AB3000) Figure 3-3-3 . Audio Section scheme LGE Internal Use Only - 54 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 54: Only For Training And Service Purposes

    Loud Speaker Mode SPKRP/N Headset Mode AUXO1/2 Loud Speaker Mode SPKRP/N FM_Radio Headset Mode AUXO1/2 Table 3-3-1. Audio Mode 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

    • Loud Speaker / Video Telephony Mode : AB3000 SPK Amp SPKRP/N AUDIO AMP(MAX9877) Speaker(8Ω) • Headset Mode : Auxiliary audio amplifier AUXO1/2 AUDIO AMP(MAX9877) Head Phone 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

    AB3000 Input(MIC2P/2N) When the headset is inserted, ACC_GP_PHFSENSE(Circuit Diagram net Name) converted into low state. So, the headset icon is displayed on Main LCD. Copyright © 2009 LG Electronics. Inc. All right reserved. - 57 - LGE Internal Use Only...

  • Page 57: Only For Training And Service Purposes

    DB3150 (DSP and Audio Mixer). MIDI : DB3150 PCM Decoder Auxiliary audio amplifier SPKRP/N Port AUDIO AMP(MAX9877) Speaker(8 ) 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

    Figure 3-3-7. MP3 Scheme MP3 function supports PCM 44/48KHz sampling rate. The PCM44/48 RX-path is intended to be used as a audio amp and one speaker. Copyright © 2009 LG Electronics. Inc. All right reserved. - 59 - LGE Internal Use Only...

  • Page 59: Only For Training And Service Purposes

    This section provides a description of the Video Telephony functions. Figure 3-3-8. Video Telephony Scheme Video Telephony Mode has same paths with Loud Speaker Mode. 3.3.8 Audio Main Component There are 4 components in GD580 schematic Diagram. Part Number marked on GD580 Schematic Diagram. ITEM PART NUMBER...

  • Page 60: Gpadc(General Purpose Adc) And Autoadc2

    Reference voltage for PAM GPA4 WRFLOOP Lock inform GPA6 GPA6 Headset detect GPA7 VBACKUP Backup battery Table 3-4-1. GPADC channel spec Copyright © 2009 LG Electronics. Inc. All right reserved. - 61 - LGE Internal Use Only Only for training and service purposes...

  • Page 61: Charger Control

    VBAT Current sensing input positive CHSENSE- Analog VBAT Current sensing input negative Table 3-5-1. Charger Control channel spec LGE Internal Use Only - 62 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 62: Only For Training And Service Purposes

    3. Technical brief 3.5.1 Fuel Gauge AB3000 supports the measurement of the current consumption/charging current in the GD580 with a fuel gauge block. By constantly integrating the current flowing into and out of the battery, the fuel gauge block is used to determine the remaining battery capacity.

  • Page 63: Only For Training And Service Purposes

    Figure 3-5-5. Battery Temperature Measurement Name Type Unused Description BDATA Digital Input/Output Unconnected current output Table 3-5-3 BDATA channel spec LGE Internal Use Only - 64 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 64: Only For Training And Service Purposes

    3.54 ~3.44 (V) 3.43 ~3.2 (V) 100~41 (%) 40~13 (%) 12~4 (%) 3~0(%) Figure 3-5-7 Battery Block Indication Copyright © 2009 LG Electronics. Inc. All right reserved. - 65 - LGE Internal Use Only Only for training and service purposes...

  • Page 65: Only For Training And Service Purposes

    CCCV algorithm. (Figure 3-5-8) shows the charging voltage(a) and charging current change(b). (a) Charging voltage (b) Charging current Figure 3-5-8. CCCV charging method 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

    • Under 0 °C : Extended temperature • From 0 °C to 45 °C : Normal charging temperature • Over 45 °C : Extended temperature Copyright © 2009 LG Electronics. Inc. All right reserved. - 67 - LGE Internal Use Only...

  • Page 67: Voltage Regulation

    ABB_BUCK(VBAT_C) VCORE 1.2V 600mA DB3150 Core ABB_SIM LDO(VBAT_D) SIMVCC 2.85V 50mA SIM Card Table 3-6-1. LDO and Buck LGE Internal Use Only - 68 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 68: Rf Technical Description

    RF blocks can be divided into three main parts, which are a WCDMA part, a GSM, and a RF front-end. Different from other general solutions, the RF front-end of GD580 consists of an antenna switch and an EDGE power amplifier module (PAM).

  • Page 69: Only For Training And Service Purposes

    A high efficiency DC/DC converter regulates the supply voltage and the bias operation point is controlled by a D/A-converter in the W-CDMA radio circuit. These DACs are controlled through the 3-wire-bus LGE Internal Use Only - 70 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 70: Only For Training And Service Purposes

    IF I and Q signals are further amplified with provision of 31 x 1 dB steps and DC offset compensation. The zero IF output buffer provides close rail-to-rail outputs signal. Copyright © 2009 LG Electronics. Inc. All right reserved. - 71 - LGE Internal Use Only...
  • Page 71 .sources. into or .sinks. current from the loop filter capacitor, thus changing the VCO frequency such that the loop finally gets phase-locked. Figure 3-7-4. WCDMA Transceiver schematic 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

    1920–1980 MHz bandwidth into a single compact package. Figure 3-7-5. SKY77182 Functional Block Diagram Figure 3-7-6. WCDMA PAM schematic Copyright © 2009 LG Electronics. Inc. All right reserved. - 73 - LGE Internal Use Only Only for training and service purposes...

  • Page 73: Only For Training And Service Purposes

    Dual Transfer Mode (DTM) class 9 (3+2=5) Zero-IF receiver . Polar modulation transmitter Figure 3-7-7. GSM Transceiver Architecture LGE Internal Use Only - 74 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 74: Only For Training And Service Purposes

    An additional single-ended clock is generated for use in the W-CDMA circuit. This output is activated by a control signal in the digital bus. Copyright © 2009 LG Electronics. Inc. All right reserved. - 75 - LGE Internal Use Only...

  • Page 75: Only For Training And Service Purposes

    The switch is used only for selecting the W-CDMA mode of operation . the split between transmit and receive frequencies is handled by the W-CDMA duplexer. Figure 3-7-8. Front-End Module 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

    UMTS band (band 1 or band 2) antenna switch-through via a dedicated UMTS port. Figure 3-7-9. SKY77519 Functional Block Diagram Figure 3-7-10. Front End part schematic Copyright © 2009 LG Electronics. Inc. All right reserved. - 77 - LGE Internal Use Only Only for training and service purposes...

  • Page 77: Only For Training And Service Purposes

    The control flow for the RF system is shown in Figure 3-7-11. Figure 3-7-11. RF Control Flow LGE Internal Use Only - 78 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 78: Trouble Shooting

    VDDG_2V85 (TP8) 2.85V < Main Board – Bottom side > VDDK_2V75(TP9) 2.75V VCORE(TP10) 1.2V TP3 TP4 Change main board TP10 Copyright © 2009 LG Electronics. Inc. All right reserved. - 79 - LGE Internal Use Only Only for training and service purposes...

  • Page 79: Usb Trouble

    VDDE_1V8 (TP1) is same to 1.8V? ACC_USB_PUEN(TP2) is 1.8V? Change main board Finish < Main Board – Top side > LGE Internal Use Only - 80 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 80: Sim Detect Trouble

    Finish < Main Board - Bottom side > Change SIM card SIM works well? Finish Change main board Copyright © 2009 LG Electronics. Inc. All right reserved. - 81 - LGE Internal Use Only Only for training and service purposes...

  • Page 81: Microsd Card Trouble

    < Main Board - Bottom side > APP_GP_MMC_DET(TP2) Change Main board is same to 0 V? MicroSD works well? Finish Change main board LGE Internal Use Only - 82 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 82: Key And Touch Screen Trouble

    Check connector soldering. Re-solder CN100. works well? Finish Change the key FPCB. works well? Finish Change Main Board Copyright © 2009 LG Electronics. Inc. All right reserved. - 83 - LGE Internal Use Only Only for training and service purposes...

  • Page 83: Only For Training And Service Purposes

    Change the key button. Check BtoB connector(CN100) Re-assemble CN100. CN100 Check connector soldering. Re-solder CN100. LGE Internal Use Only - 84 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 84: Camera Trouble

    3M Camera’s Operation is OK? Change 3M Camera C516( )=1.8V? Change U503 C510( )=2.8V? Change Main Board 3M Camera Works 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

    < Main Board – Bottom side > < Main Board – Bottom side > TP 2 TP 1 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

    Change Main FPCB Pin 15( ) of CN702=2.8V? C101=1.8V? Change Upper FPCB C100=2.8V? Change Main Board VGA Camera Works 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

    4. Trouble Shooting Pin #1 Pin #1 < Upper FPCB – Top side > < VGA Camera, Socket Cover> 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

    4. Trouble Shooting U503 < Main Board – Bottom side > TP 4 TP 3 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

    4. Trouble Shooting TP 6 TP 5 < Main FPCB – Top side > TP 5 TP 6 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 TP 7 TP 8 < Upper FPCB – Bottom side > Copyright © 2009 LG Electronics. Inc. All right reserved. - 91 - LGE Internal Use Only Only for training and service purposes...

  • Page 91: Main Lcd Trouble

    ) =3.2V? Change Main FPCB LCD display OK? C514( ) =2.8V? Change U502 Change Main Board LCD Works 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

    4. Trouble Shooting < LCD – Bottom side > CN701 < Main FPCB – Top side > 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

    4. Trouble Shooting U101 TP 1 LGE Internal Use Only - 94 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 94: Only For Training And Service Purposes

    4. Trouble Shooting U502 TP 2 Copyright © 2009 LG Electronics. Inc. All right reserved. - 95 - LGE Internal Use Only Only for training and service purposes...

  • Page 95: Keypad Backlight Trouble

    Of LD102 or LD 103 (TP2) Check V at R401(TP3)or Change Key FPCB R410(TP4) is confirm Keypad Backlight Works LGE Internal Use Only - 96 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 96: Only For Training And Service Purposes

    4. Trouble Shooting Key FPCB(Top) 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

    4. Trouble Shooting CN503 Main board (Bottom) LGE Internal Use Only - 98 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 98: Audio Trouble Shooting

    5. Receiver ♣ Note : It is recommended that engineer should check the soldering of R, L, C along the corresponding path before every step. Copyright © 2009 LG Electronics. Inc. All right reserved. - 99 - LGE Internal Use Only...

  • Page 99: Only For Training And Service Purposes

    4. Trouble Shooting CN502 U405 Main PCB Bottom CN702 Main FPCB TOP Upper FPCB Bottom 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

    Resolder the Receiver receiver OK? Can you hear sine wave Change the Receiver out of the receiver ? Copyright © 2009 LG Electronics. Inc. All right reserved. - 101 - LGE Internal Use Only Only for training and service purposes...

  • Page 101: Only For Training And Service Purposes

    4. Trouble Shooting Measured 1khz Sine Wave Signal Measured 1khz Sine Wave Signal 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

    6. Speaker ♣ Note : It is recommanded that engineer should check the soldering of R, L, C along the corresponding path before every step. Copyright © 2009 LG Electronics. Inc. All right reserved. - 103 - LGE Internal Use Only...

  • Page 103: Only For Training And Service Purposes

    4. Trouble Shooting U405 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

    Resolder the Speaker speaker OK? Can you hear sine wave Change each Speaker out of a speaker ? 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 Measured 1khz Sine Wave Signal LGE Internal Use Only - 106 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 106: Only For Training And Service Purposes

    C705/706 on Upper FPCB – FB102/103 on Upper FPCB – CN700 on Main FPCB – FB503/505 on main board – AB3000 Copyright © 2009 LG Electronics. Inc. All right reserved. - 107 - LGE Internal Use Only Only for training and service purposes...

  • Page 107: Only For Training And Service Purposes

    4. Trouble Shooting MIC1 MIC2 LGE Internal Use Only - 108 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 108: Only For Training And Service Purposes

    4. Trouble Shooting START Does not open Tx path about Mic? Change the MIC Does it work properly ? Copyright © 2009 LG Electronics. Inc. All right reserved. - 109 - LGE Internal Use Only Only for training and service purposes...

  • Page 109: Only For Training And Service Purposes

    Headset Can you hear sine wave Change the main B,d out of the receiver ? LGE Internal Use Only - 110 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 110: Only For Training And Service Purposes

    Change the main B’d Change the main B’d Try again from the start Does it work properly ?? Copyright © 2009 LG Electronics. Inc. All right reserved. - 111 - LGE Internal Use Only Only for training and service purposes...

  • Page 111: Only For Training And Service Purposes

    4. Trouble Shooting 4.9.6 Headset U405 CN601 LGE Internal Use Only - 112 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 112: Charger Trouble Shooting

    • Trouble Shooting Procedure - Check the charger connecter - Check the Charging current Path - Check the battery Copyright © 2009 LG Electronics. Inc. All right reserved. - 113 - LGE Internal Use Only Only for training and service purposes...
  • Page 113 Is the DCIN voltage(TP3) 5.0V? Is it charging properly after changing Q402(TP4)? Change Main board Trouble Shooting - Charging LGE Internal Use Only - 114 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 114 4. Trouble Shooting Main Board ( Top side) - I/O connector and FET Copyright © 2009 LG Electronics. Inc. All right reserved. - 115 - LGE Internal Use Only Only for training and service purposes...

  • Page 115: Bluetooth Trouble

    BT IC Block TP1: 1.8V , TP2 : 2.75V Go to 4.11.2 Check AB3000 (U300) Main PCB TOP LGE Internal Use Only - 116 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 116 TP1: 26MHz Go to 4.11.3 2. Check MCLKSEC TP2: 26MHz Replace U107 Check RF3000 (U102) Main PCB TOP Copyright © 2009 LG Electronics. Inc. All right reserved. - 117 - LGE Internal Use Only Only for training and service purposes...
  • Page 117 BT IC Output (C215) Replace BT Chip (U201) 0 ~ 4dBm ? with Spectrum Analyzer Replace ANT201 LGE Internal Use Only - 118 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 118: Rf Component

    WCDMA BC 1 Rx Filter FL106 DCS Rx SAW Filter U106 WCDMA Transceiver U102 GSM Transceiver X101 X-tal Copyright © 2009 LG Electronics. Inc. All right reserved. - 119 - LGE Internal Use Only Only for training and service purposes...

  • Page 119: Procedure To Check

    Agilent 8960 : Test mode (GSM) Ch. 190, P.L. 7 level setting Ch. 190, -60dBm setting 5. Check GSM Block Redownload SW, Cal LGE Internal Use Only - 120 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 120: Checking Common Power Source Block

    DC/DC VBAT Step 2 GSM PAM Block Step 3 WCDMA PAM Block GSM PA VBAT WCDMA DC/DC VBAT Copyright © 2009 LG Electronics. Inc. All right reserved. - 121 - LGE Internal Use Only Only for training and service purposes...
  • Page 121 Main Board (Top side) Main Board (bottom side) - Step 1 : VBAT Block - Power Source Block LGE Internal Use Only - 122 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 122 Short? Change Board From TP4 to TP3 Soldering Check Component (CN300) In Power Source Block Copyright © 2009 LG Electronics. Inc. All right reserved. - 123 - LGE Internal Use Only Only for training and service purposes...
  • Page 123 GSM PAM (Bottom) Main Board (bottom side) Step 2 : GSM PAM Block - Power Source Block TP3 TP4 LGE Internal Use Only - 124 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 124 Short? to check inner line connection From TP1 to TP3,TP4,TP5 Soldering Check Component (CN300) In Power Source Block Copyright © 2009 LG Electronics. Inc. All right reserved. - 125 - LGE Internal Use Only Only for training and service purposes...
  • Page 125 Change Board to check inner line connection From TP3 to TP1 Soldering Check Component (CN300) In Power Source Block LGE Internal Use Only - 126 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 126 Check Point VDIGRAD_1V8 1.8V OK? Check the AB3000 (TP2) Common Input Power is OK See The Next Part Copyright © 2009 LG Electronics. Inc. All right reserved. - 127 - LGE Internal Use Only Only for training and service purposes...

  • Page 127: Checking Vcxo Block

    Main board : Top side Digital Base Band Crystal Notebook to send TP command Oscilloscope Phone Connection for Checking VCXO Block LGE Internal Use Only - 128 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 128 If you already check this crystal part, you can skip check 1 Test Point (Crystal Part) Schematic (Crystal Part) Schematic (Crystal Part) Figure 4-15. 26MHz at TP1 Copyright © 2009 LG Electronics. Inc. All right reserved. - 129 - LGE Internal Use Only Only for training and service purposes...
  • Page 129 Figure 4-15-1. Test point (26MHz at BB part) Figure 4-15-2. Schematic (26MHz at BB Part) Figure 4-15-3. 26MHz at TP1 LGE Internal Use Only - 130 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 130 Changing XTAL or U111 Refer to Figure 4-15 26MHz at VCXO VCXO part is O.K. Check next stage Copyright © 2009 LG Electronics. Inc. All right reserved. - 131 - LGE Internal Use Only Only for training and service purposes...

  • Page 131: Checking Front End Module Block

    4.16 Checking Front End Module Block <Top> Antenna Switch Module (+ GSM/EDGE PA) Figure 4-16. Front End Module Block LGE Internal Use Only - 132 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 132: Checking Front End Module Block Input Logic

    ANTSW2 ANTSW3 ANTSW3 EGSM Rx ANTSW1 ANTSW2 ANTSW3 PCS Rx DCS Rx ANTSW1 ANTSW1 ANTSW2 ANTSW2 ANTSW3 ANTSW3 Copyright © 2009 LG Electronics. Inc. All right reserved. - 133 - LGE Internal Use Only Only for training and service purposes...
  • Page 133 4. Trouble Shooting Table 4-1. Front End module Logic LGE Internal Use Only - 134 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 134 Resoldering Check ANTSW0(TP1) To check Switch input power source Check each mode Change the Board By TP command Copyright © 2009 LG Electronics. Inc. All right reserved. - 135 - LGE Internal Use Only Only for training and service purposes...
  • Page 135 4.17 part Check Try 4.17 part Logic OK? See the Next mode Change the Board (EGSM Tx Mode) LGE Internal Use Only - 136 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 136 Try 4.17 part Logic OK? See the Next mode ANTSW1:High (DCS Rx Mode) ANTSW2:Low Change the Board ANTSW3:High Change U101 Copyright © 2009 LG Electronics. Inc. All right reserved. - 137 - LGE Internal Use Only Only for training and service purposes...
  • Page 137 4.17 part Check Try 4.17 part Logic OK? See the Next mode Change the Board (DCS Tx Mode) LGE Internal Use Only - 138 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 138 4.17 part Check Try 4.17 part Logic OK? See the Next mode Change the Board (PCS Tx Mode) Copyright © 2009 LG Electronics. Inc. All right reserved. - 139 - LGE Internal Use Only Only for training and service purposes...
  • Page 139 Figure 4-17-4. DCS / PCS Tx Mode DCS Tx 4.17 part Check Try 4.17 part Logic OK? WCDMA1900 Mode Change the Board LGE Internal Use Only - 140 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 140 Input Signal and Power to Change the Board Front End Module block is OK. See the Next Page Copyright © 2009 LG Electronics. Inc. All right reserved. - 141 - LGE Internal Use Only Only for training and service purposes...

  • Page 141: Checking Wcdma Block

    ⑥ 5. Check PAM Block ③ 6. Check RF RX Level Figure 4-18. RF BLOCK Re-download SW, Cal LGE Internal Use Only - 142 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 142: Checking Control Signal

    First of all, control signal should be checked. (data, clk, strobe) Pin 14 [RF_CTRL_STR1] Pin 12 Pin 13 [RF_CTRL_DATA] [RF_CTRL_CLK] Figure 4-18-1. Test points (Control Signal) Copyright © 2009 LG Electronics. Inc. All right reserved. - 143 - LGE Internal Use Only Only for training and service purposes...
  • Page 143 Figure 4-18-2. Schematic (Control Signal) Notebook to send TP command Oscilloscope Phone Figure 4-18-3. Connection for Checking Control Signal LGE Internal Use Only - 144 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 144 If signal is not OK even after downloading, Change the U201 Control Signal is O.K. Check next stage Copyright © 2009 LG Electronics. Inc. All right reserved. - 145 - LGE Internal Use Only Only for training and service purposes...

  • Page 145: Checking Rf Tx Level

    4.18.4 Checking RF TX Level <Top side> [WBAND 1 PAM Input] [RF3100 Output BAND 1] <Bottom side> Ant. SW FEM Output Ant. LGE Internal Use Only - 146 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 146 4. Trouble Shooting [[WBAND 1 PAM Input] [RF3100 Output BAND 1] Ant. SW Ant. FEM Output Copyright © 2009 LG Electronics. Inc. All right reserved. - 147 - LGE Internal Use Only Only for training and service purposes...
  • Page 147 Figure 4-18-7 Output Level at PAM Input Figure 4-18-8 Output Level at RF3100 Output ( TP1) ( TP2) LGE Internal Use Only - 148 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 148 Figure 4-18-10 Output Level at RF test connector Figure 4-18-9 Output Level at FEM Output ( TP4) (TP3) Figure 4-18-11 Output Level at TP5 .Ant Copyright © 2009 LG Electronics. Inc. All right reserved. - 149 - LGE Internal Use Only Only for training and service purposes...
  • Page 149 Refer to Figure 4-18-7 You have to check PAM block. The U101 will be not operated. Change the board LGE Internal Use Only - 150 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 150: Checking Pam Block

    (C133, C110) from DC/DC Bias_CTRL (C143, C106) WPAM input (C149) Figure 4-18-12. Test points of WCDMA TX PAM block Copyright © 2009 LG Electronics. Inc. All right reserved. - 151 - LGE Internal Use Only Only for training and service purposes...
  • Page 151 Check C133, C110 To Check PAM VCC BIAS Change 3.4V ? from DC/DC converter the DC/DC (VCC_WPA) Change The PAM LGE Internal Use Only - 152 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 152 WRX_Q_P (PIN 2) WRX_Q_N (PIN 1) WRX_I_P (PIN 4) WRX_I_N (PIN 3) Figure 4-18-15. RX I, Q signal Copyright © 2009 LG Electronics. Inc. All right reserved. - 153 - LGE Internal Use Only Only for training and service purposes...
  • Page 153 Verify whether the signal was similar as Figure Change RF3100 (U106) Similar? 4-18-15 with Oscilloscope. Check Next Stage LGE Internal Use Only - 154 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 154: Checking Gsm Block

    5. Check RF TX Path Figure 4-19. GSM Block (Bottom) 6. Check RF RX Path Re-download SW, Cal Copyright © 2009 LG Electronics. Inc. All right reserved. - 155 - LGE Internal Use Only Only for training and service purposes...

  • Page 155: Checking Regulator Circuit

    Refer to 4.16 Checking Ant. SW Module IF you already check this point while checking Ant. SW module (4.16), You can skip this test. LGE Internal Use Only - 156 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 156 Figure 4-19-1. Test points of RF control signals STRB STRB DATA DATA Figure 4-19-2. GSM RF Control signal Copyright © 2009 LG Electronics. Inc. All right reserved. - 157 - LGE Internal Use Only Only for training and service purposes...
  • Page 157 Refer to Figure 4-19-2 Short? Similar? Re-download SW Change the board Control signal is OK. See next page to check LGE Internal Use Only - 158 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 158 A. GSM Tx path Level ② ② ③ ③ ③′ ③′ ① ① Figure 4-19-3. GSM/DCS/PCS Tx Path Level Copyright © 2009 LG Electronics. Inc. All right reserved. - 159 - LGE Internal Use Only Only for training and service purposes...
  • Page 159 4. Trouble Shooting (Top) ③′ ③ ② PIN 6,7,8,9 (Bottom) ① Figure 4-19-4. Test Points of GSM850/EGSM/DCS/PCS Tx Path LGE Internal Use Only - 160 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 160 Tx path EGSM>32dBm DCS>29dBm PCS>29dBm EGSM/DCS/PCS Tx path OK. See Chapter 4.19 to check Rx path Copyright © 2009 LG Electronics. Inc. All right reserved. - 161 - LGE Internal Use Only Only for training and service purposes...
  • Page 161 Check GSM RF Transceiver EGSM/DCS/PCS Redownload SW Output power at >5dBm See Next page to check Tx path LGE Internal Use Only - 162 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 162 EGSM/DCS/PCS PAM DCS/PCS: 29.5dBm (U105) output power at SW101. GSM Tx path OK. See Next page to check Copyright © 2009 LG Electronics. Inc. All right reserved. - 163 - LGE Internal Use Only Only for training and service purposes...

  • Page 163: Checking Rf Rx Path

    -51.5dBm ① ① EGSM : -50dBm DCS : -50dBm PCS : -50dBM Figure 4-19-8. GSM/DCS/PCS Rx Path Level LGE Internal Use Only - 164 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 164 Agilent 8960 Setting CW Mode EGSM : -50dBm@Ch65(948MHz) DCS : -50dBm@Ch700(1842.8MHz) PCS : -50dBm@ch700(1967.8MHz) v Oscilloscope Setting Copyright © 2009 LG Electronics. Inc. All right reserved. - 165 - LGE Internal Use Only Only for training and service purposes...
  • Page 165 Check Change Ant. SW module EGSM:-51.5dBm EGSM/DCS/PCS Rx (U105) DCS/PCS:-51.7dBm signal level at ②. GSM Rx path OK. LGE Internal Use Only - 166 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 166: Download

    Select Model DLL. ③ Download Configuration Setup DLL configuration. ④ DLL Information Show DLL configuration information what is selected. Copyright © 2009 LG Electronics. Inc. All right reserved. - 167 - LGE Internal Use Only Only for training and service purposes...

  • Page 167: Gd580 Download

    Select Image binary files. ③ GDFS File Select GDFS files. GD580 GD580 GD580 GD580 GD580 GD580 GD580 GD580 LGE Internal Use Only - 168 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 168 ④ Check USB Address which is loaded. ⑤ Do 2 again. ⑥ After assign all ports, press save dialog. Copyright © 2009 LG Electronics. Inc. All right reserved. - 169 - LGE Internal Use Only Only for training and service purposes...

  • Page 169: Block Diagram

    6. Block Diagram 6. Block diagram 6.1 System Block Diagram Figure 6-1 GD580 Block Diagram Figure 6-1 GD580 Block Diagram LGE Internal Use Only - 170 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 170: Rf Block Diagram

    6. Block Diagram 6.2 RF Block Diagram Figure 6-2 RF Block Diagram Figure 6-2 RF Block Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 171 - LGE Internal Use Only Only for training and service purposes...

  • Page 171: Power Block Diagram

    6. Block Diagram 6.3 Power Block Diagram Figure 6-3 Power Block Diagram Figure 6-3 Power Block Diagram LGE Internal Use Only - 172 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 172 6.4 Control Signals and Clocks Block Diagram Figure 6-4 Control Signals and Clocks Block Diagram Figure 6-4 Control Signals and Clocks Block Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 173 - LGE Internal Use Only Only for training and service purposes...
  • Page 173 6. Block Diagram 6.5 Bluetooth Block Diagram Figure 6-5 Bluetooth Block Diagram Figure 6-5 Bluetooth Block Diagram LGE Internal Use Only - 174 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 174 6. Block Diagram 6.6 Camera Block Diagram Figure 6-6 Camera Block Diagram Figure 6-6 Camera Block Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 175 - LGE Internal Use Only Only for training and service purposes...
  • Page 175 6. Block Diagram 6.7 LCD Block Diagram Figure 6-7 LCD Block Diagram Figure 6-7 LCD Block Diagram LGE Internal Use Only - 176 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 176 6. Block Diagram 6.8 Audio part Block Diagram Figure 6-8 Audio part Block Diagram Figure 6-8 Audio part Block Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 177 - LGE Internal Use Only Only for training and service purposes...
  • Page 177 6.9 Memory, Micro-SD, USIM Block Diagram Figure 6-9 Memory, Micro-SD, USIM Block Diagram Figure 6-9 Memory, Micro-SD, USIM Block Diagram LGE Internal Use Only - 178 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 178 6. Block Diagram 6.10 USB Transceiver for Full Speed Block Diagram Figure 6-10 USB Transceiver for Full Speed Block Diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 179 - LGE Internal Use Only Only for training and service purposes...
  • Page 179 LGE Internal Use Only - 180 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 180: Circuit Diagram

    IS101 CEG231G95DCB000 C149 WTXMOD_BAND_1 RFIN RFOUT WTX_BAND_1 GND1 GND2 VBIAS C104 L109 C143 C106 0.1u WPOW_SENSE R108 0603 Copyright © 2009 LG Electronics. Inc. All right reserved. - 181 - LGE Internal Use Only Only for training and service purposes...
  • Page 181 FM_GND5 FM_FMIP FM_GND6 TP202 RESOUT1_N FM_RSTB FM_GND7 FM_RCLK FM_GND8 FM_SENB APP_GP_FM_SCL FM_SCLK FM_RFGND RTCCLK C204 C203 C208 FM_ANT LGE Internal Use Only - 182 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 182 3.3K R320 3.3K VDD_CAM_1V8 R321 3.3K R312 3.3K R304 3.3K R303 3.3K R318 3.3K OJ301 OJ302 HOLE HOLE Copyright © 2009 LG Electronics. Inc. All right reserved. - 183 - LGE Internal Use Only Only for training and service purposes...
  • Page 183 DB3150 l e l DB3150 l a i l a i & LGE Internal Use Only - 184 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 184 VOUT1 VDD_MIC_BIAS_2V5 VOUT APP_GP_CAM_LDO_EN VOUT2 VOUT ACC_GP_HF_MIC_BIAS_EN C509 C510 C516 C519 C506 C514 C515 DUAL LDO for Camera Copyright © 2009 LG Electronics. Inc. All right reserved. - 185 - LGE Internal Use Only Only for training and service purposes...
  • Page 185 USB_DM 100n 100K 100K USB_DAT_VM VDDE_1V8 R625 R623 ARRAY TP POINT Three-axis-accelerometer (Motion Sensor_EUSY0345201) C607 ACC_USB_SUSPND 0.1U ACC_USB_VBDET LGE Internal Use Only - 186 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 186 7. Circuit diagram Copyright © 2009 LG Electronics. Inc. All right reserved. - 187 - LGE Internal Use Only Only for training and service purposes...

  • Page 187: Lcd Backlight

    VDD_CAM_2V8 TRICKLE PGND CI_RESN APP_GP_LED_M_CTRL C700 C703 CI_HSYNC ACC_GP_VGA_SDN APP_I2C_SCL CI_VSYNC APP_I2C_SDA MIC4N CCO2 MIC4P AXT640124 LCD BACKLIGHT LGE Internal Use Only - 188 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 188 CI_HSYNC ACC_GP_VGA_SDN APP_I2C_SCL CI_VSYNC FB103 BLM15HD182SN1 APP_I2C_SDA FB102 BLM15HD182SN1 FB101 BLM15HD182SN1 MIC4N CCO2 1800 MIC4P 1800 1800 AXT540124 Copyright © 2009 LG Electronics. Inc. All right reserved. - 189 - LGE Internal Use Only Only for training and service purposes...
  • Page 189 LGE Internal Use Only - 190 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 190: Bga Pin Map

    8. BGA Pin Map 8. BGA Pin Map 8.1 DB3150 (Digital BB) : NC pin Copyright © 2009 LG Electronics. Inc. All right reserved. - 191 - LGE Internal Use Only Only for training and service purposes...
  • Page 191 8. BGA Pin Map 8.2 AB3000 (Analog Baseband) NC pin LGE Internal Use Only - 192 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 192 8. BGA Pin Map 8.3 MCP(2G NAND/1G SDRAM) Copyright © 2009 LG Electronics. Inc. All right reserved. - 193 - LGE Internal Use Only Only for training and service purposes...
  • Page 193 8. BGA Pin Map 8.4 RF3000 (GSM Transceiver) NC pin LGE Internal Use Only - 194 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 194 8. BGA Pin Map 8.5 RF3100 (WCDMA Transceiver) NC pin Copyright © 2009 LG Electronics. Inc. All right reserved. - 195 - LGE Internal Use Only Only for training and service purposes...
  • Page 195 8. BGA Pin Map 8.6 STLC2593(Bluetooth) NC pin LGE Internal Use Only - 196 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 196: Pcb Layout

    U301 : KA100J00BA-AJYY 2G NAND/ 1G SDRAM No Service No Booting U105 : SKY77519 GSM PAM with FEM No Service Copyright © 2009 LG Electronics. Inc. All right reserved. - 197 - LGE Internal Use Only Only for training and service purposes...
  • Page 197 FL101 :SAYZY1G95EB0B00 Duplexer U104 : LM3208TL No Service DCDC Converter IS101 : CEG231G95DCB000 Isolator No Service Q402 : SIA911DJ LGE Internal Use Only - 198 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 198 No Sound SIM/Micro SD card Socket No SIM/Micro SD U602 : BMA150 3 Axis Sensor No motion sensor Copyright © 2009 LG Electronics. Inc. All right reserved. - 199 - LGE Internal Use Only Only for training and service purposes...
  • Page 199 CONN,RF SWITCH 32.768 KHz Clock No Service SW101 : MM8430-2600RB3 CONN,RF SWITCH BAT401 : DSK- 3R3G703T414- GRR, 3.3V, Cap(0.07F) LGE Internal Use Only - 200 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 200 No LED No VGA Camera No Receiver No Display U101 : AAT3169IFO-T1 LCD Charge Pump No Display GD580_F_MAIN_SPCY0196401-1.0 Copyright © 2009 LG Electronics. Inc. All right reserved. - 201 - LGE Internal Use Only Only for training and service purposes...
  • Page 201 RED LED CN101 : 04-6293-021-001-829 Matrix LED ZIP connector CN100 : AXT540124 Main FPCB to Upper FPCB connector GD580_F_UPPER_SPCY0196601-1.0 LGE Internal Use Only - 202 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 202 ANT100 : PAD Intenna PAD VB100 : PAD SW100 : UFL-R-SMT10 Speaker PAD CONN,RF SWITCH No Sound No Service GD580_F_KEY_SPCY0196501_1.1 Copyright © 2009 LG Electronics. Inc. All right reserved. - 203 - LGE Internal Use Only Only for training and service purposes...
  • Page 203 LGE Internal Use Only - 204 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 204: Calibration

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

  • Page 205: Calibration Environment

    Parameter Unit Temperature Relative Humidity Vbatt Supply current Table 10-1. Nominal Environmental Test Conditions LGE Internal Use Only - 206 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 206: Program Operation

    - Instrument (Agilent8960, Tektronix PS2521G) control - UART communication with mobile phone Figure 9-2. Hot Kimchi Window Figure 10-2. HotKimchi Window Copyright © 2009 LG Electronics. Inc. All right reserved. - 207 - LGE Internal Use Only Only for training and service purposes...
  • Page 207 10. Calibration 10.4.2 Setting Select a ezlooks Select Off-line in the EZLOOKS MODE. LGE Internal Use Only - 208 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 208 10. Calibration Select a Line System Select Manual in the RUN MODE. Select your com port appropriately. Copyright © 2009 LG Electronics. Inc. All right reserved. - 209 - LGE Internal Use Only Only for training and service purposes...
  • Page 209 3. CAL + AUTO Select your com port appropriately. Monitor Port is to communicate with 2.5G mobile phone LGE Internal Use Only - 210 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 210: Calibration Procedure

    10. Calibration 10.4.3 Calibration Procedure Select a model name – GD580. Click the START button. GD580 Copyright © 2009 LG Electronics. Inc. All right reserved. - 211 - LGE Internal Use Only Only for training and service purposes...
  • Page 211 LGE Internal Use Only - 212 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 212: Exploded View & Replacement Part List

    11. Exploded view & Replacement part list 11.1 Exploded view Copyright © 2009 LG Electronics. Inc. All right reserved. - 213 - LGE Internal Use Only Only for training and service purposes...
  • Page 213 ASS’Y Exploded view LGE Internal Use Only - 214 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 214: Replacement Parts

    CUTTING, NS, , , , , COLOR Without MMAA00 MAGNET,SWITCH MMAA0005401 Color WITHOUT MPBT00 PAD,CAMERA MPBT0084501 CUTTING, NS, , , , , COLOR Copyright © 2009 LG Electronics. Inc. All right reserved. - 215 - LGE Internal Use Only Only for training and service purposes...
  • Page 215 MOLD, ABS MP-211, , , , , BLUE AQUA MDAC01 DECO,SIDE MDAC0029001 MOLD, ABS MP-211, , , , , BLUE LGE Internal Use Only - 216 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 216 BLUE WITHOUT MTAB00 TAPE,PROTECTION MTAB0347901 CUTTING, NS, , , , , COLOR WITHOUT ADCA DOME ASSY,METAL ADCA0103201 COLOR Copyright © 2009 LG Electronics. Inc. All right reserved. - 217 - LGE Internal Use Only Only for training and service purposes...
  • Page 217 CUTTING, NS, , , , , COLOR WITHOUT MTAZ01 TAPE MTAZ0260101 CUTTING, NS, , , , , COLOR LGE Internal Use Only - 218 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 218 LABEL MLAZ0038301 PID Label 4 Array COLOR WITHOUT CN602 BRACKET MBFZ0036901 COMPLEX, (empty), , , , , COLOR Copyright © 2009 LG Electronics. Inc. All right reserved. - 219 - LGE Internal Use Only Only for training and service purposes...

  • Page 219: Main Component

    ,20mA , , ,110mW ,[empty] ,[empty] ,2P BLUE ,ETC ,R/TP ,3.8x1.2x0.6T ,; ,BLUE ,2.9~3.3V LD101 DIODE,LED,CHIP EDLH0013406 ,20mA , , ,110mW ,[empty] ,[empty] ,2P LGE Internal Use Only - 220 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 220 ,R(2.2V), G(3.3V), B(3.3V) ,R(25mA), G(30mA), B(25mA) LD101 DIODE,LED,7-SEG EDLS0002001 ,R(112mcd), G(360mcd), B(112mcd) ,R(60mW), G(110mW), B(95mW) ,COMMON ANODE ,[empty] ,4P Copyright © 2009 LG Electronics. Inc. All right reserved. - 221 - LGE Internal Use Only Only for training and service purposes...
  • Page 221 CMOS ,VGA ,hynix 1/10" socket 5x5x2.5 Main ,2.8" ,240*400 ,41.7*50.7 ,262K ,TFT ,TM SVLM00 LCD MODULE SVLM0031601 F, 20 ,uPD161710 , LGE Internal Use Only - 222 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 222 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C421 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 223 - LGE Internal Use Only Only for training and service purposes...
  • Page 223 ECCH0009504 18 pF,25V ,J ,NP0 ,TC ,0603 ,R/TP C505 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP LGE Internal Use Only - 224 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 224 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C619 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP C620 CAP,CERAMIC,CHIP ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 225 - LGE Internal Use Only Only for training and service purposes...
  • Page 225 FB601 FILTER,BEAD,CHIP SFBH0008102 1800 ohm,1005 ,Bead FB602 FILTER,BEAD,CHIP SFBH0008102 1800 ohm,1005 ,Bead FB603 FILTER,BEAD,CHIP SFBH0008102 1800 ohm,1005 ,Bead LGE Internal Use Only - 226 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 226 39 Kohm,1/16W ,J ,1005 ,R/TP R443 RES,CHIP,MAKER ERHZ0000422 15 Kohm,1/16W ,J ,1005 ,R/TP R449 RES,CHIP,MAKER ERHZ0000204 100 Kohm,1/16W ,F ,1005 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 227 - LGE Internal Use Only Only for training and service purposes...
  • Page 227 ENSY0018601 16 PIN,ETC , ,2.54 mm,UIM 8P, Micro SD Dupli-Socket SW101 CONN,RF SWITCH ENWY0001801 STRAIGHT ,SMD ,2 dB,3000PCS/REEL LGE Internal Use Only - 228 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 228 ECCH0009216 22 pF,25V ,J ,X7R ,TC ,0603 ,R/TP C120 CAP,CERAMIC,CHIP ECCH0007802 4.7 uF,10V ,M ,X5R ,TC ,1608 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 229 - LGE Internal Use Only Only for training and service purposes...
  • Page 229 ECZH0000816 12 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C157 CAP,CHIP,MAKER ECZH0000841 56 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only - 230 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 230 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C318 CAP,CERAMIC,CHIP ECCH0009203 33 nF,6.3V ,K ,X5R ,TC ,0603 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 231 - LGE Internal Use Only Only for training and service purposes...
  • Page 231 EMD2 ,30 V,1 A,R/TP ,VF=1.5V(IF=200mA) , D404 DIODE,SWITCHING EDSY0011901 IR=30uA(VR=10V) FB201 FILTER,BEAD,CHIP SFBH0000909 60 ohm,1005 , FB605 FILTER,BEAD,CHIP SFBH0009201 220 ohm,1608 , LGE Internal Use Only - 232 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 232 220 ohm,1/20W(0.05W) ,J ,0603 ,R/TP R104 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP R105 RES,CHIP ERHY0009504 1 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP Copyright © 2009 LG Electronics. Inc. All right reserved. - 233 - LGE Internal Use Only Only for training and service purposes...
  • Page 233 120 Kohm,1/16W ,J ,1005 ,R/TP R317 RES,CHIP ERHY0009522 3.3 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP R318 RES,CHIP ERHY0009522 3.3 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP LGE Internal Use Only - 234 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 234 BGA ,344 PIN,R/TP ,3.6Mbps HSDPA Digital Baseband U601 EUSY0374601 TDFN ,8 ,R/TP ,Programmable OVP ,; ,IC,Charger U603 EUSY0257901 SOT773-1 ,14 PIN,R/TP ,USB Transceiver Copyright © 2009 LG Electronics. Inc. All right reserved. - 235 - LGE Internal Use Only Only for training and service purposes...
  • Page 235 , ,SMD ,R/TP EMD2 ,5.6 V,150 mW,R/TP , ,; ,5.6V ,[empty] , , ,[empty] ZD401 DIODE,ZENER EDNY0013601 ,[empty] ,2P ,1 LGE Internal Use Only - 236 - Copyright © 2009 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 236: Accessory

    100-240V ,5060 Hz,5.0 V,0.5 A,CCC ,China Standard TA ADAPTOR,AC-DC SSAD0026502 ,; , , , , , ,WALL 2P ,USB , Copyright © 2009 LG Electronics. Inc. All right reserved. - 237 - LGE Internal Use Only Only for training and service purposes...

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