1. Manuals
  2. Brands
  3. LG Manuals
  4. Cell Phone
  5. CF360
  6. Service manual

LG CF360 Service Manual

Hide thumbs Also See for CF360:
Table of Contents

Advertisement

Quick Links

Download this manual See also: User Manual
Internal Use Only
Service Manual
CF360
Date: January, 2009 / Issue 1.0

Advertisement

Table of Contents
loading

Related Manuals for LG CF360

Summary of Contents for LG CF360

  • Page 1 Internal Use Only Service Manual CF360 Date: January, 2009 / Issue 1.0...

  • Page 2: Table Of Contents

    4.16 Checking VCXO Block ..........112 4.17 Checking Front End Module Block ......116 4.18 Checking Front End Module Block input logic ..118 Copyright © 2008 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 © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 4: Introduction

    Copyright © 2008 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 © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 6: Performance

    Push Type ( + , - ) Camera Key Push Type External Memory Micro SD Socket I/O Connect 5Pin Copyright © 2008 LG Electronics. Inc. All right reserved. - 7 - LGE Internal Use Only Only for training and service purposes...

  • Page 7: Usable Environment

    1G ~ 1.71GHz -50dBm 1.71G ~ 1.785GHz -56dBm 1.71G ~ 1.785GHz -56dBm 1.785G ~ 12.75GHz -50dBm 1.785G ~ 12.75GHz -50dBm LGE Internal Use Only - 8 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 8: Only For Training And Service Purposes

    400kHz -22dB Due to 600kHz -21dB 600kHz -24dB Switching 1200kHz -21dB 1200kHz -24dB transient 1800kHz -24dB 1800kHz -27dB Copyright © 2008 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

    ±4 ±3 ±4 ±5 ±4 ±5 ±4 ±5 ±4 ±5 ±5 ±5 Burst timing Mask IN Mask IN LGE Internal Use Only - 10 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 10: Only For Training And Service Purposes

    ±3dB(after 14slots transmission gap) Occupied Bandwidth(OBW) 5MHz(99%) -35-15*(?f-2.5)dBc@?f=2.5~3.5MHz, 30k -35-1*(?f-3.5)dBc@?f=3.5~7.5MHz, 1M Spectrum emission Mask -39-10*(?f-7.5)dBc@?f=7.5~8.5MHz, 1M -49 dBc@?f=8.5~12.5MHz, 1M Copyright © 2008 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

    Wanted Signal: -101dBm Wanted Signal: -101dBm (TCH/FS Class II, RBER) Unwanted Signal: Depend on freq. Unwanted Signal: Depend on freq. LGE Internal Use Only - 12 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 12: Only For Training And Service Purposes

    -46dBm CW@10MHz & -46dBm/3.84MHz@20MHz Intermodulation Characteristic UE@+20dBm output power(class3) -57dBm@f=9KHz~1GHz, 100k BW -47dBm@f=1~12.75GHz, 1M Spurious Emissions -60dBm@f=1850~1910MHz, 3.84MHz -60dBm@f=1930~1990MHz, 3.84MHz Copyright © 2008 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

    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 LGE Internal Use Only - 14 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 14: 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 Copyright © 2008 LG Electronics. Inc. All right reserved. - 15 - LGE Internal Use Only Only for training and service purposes...

  • Page 15: Current Consumption

    3.67 ± 0.05V BAR 1 (3%) -> Icon Blinking & 3.5 ± 0.05V Alerting Sound POWER OFF 3.20 ± 0.05V LGE Internal Use Only - 16 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 16: Sound Pressure Level

    -62dBm under Acoustic(Max Vol.) SEND MS/HEADSET SLR: 8±3dB REV. MS/HEADSET RLR: -13±1dB/-15dB Headset SEND (SLR/RLR: mid-Value Setting) REV. Copyright © 2008 LG Electronics. Inc. All right reserved. - 17 - LGE Internal Use Only Only for training and service purposes...

  • Page 17: Charging

    (GSM: It should be kept 3.7V in all power level WCDMA: It will not be kept 3.7V in some power level) LGE Internal Use Only - 18 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 18: Technical Brief

    - General Purpose I/O (GPIO) Interface - External Memory Interface that supports NAND, NOR, PSRAM, SDRAM, - JTAG - RTC - ETM9 Copyright © 2008 LG Electronics. Inc. All right reserved. - 19 - LGE Internal Use Only Only for training and service purposes...

  • Page 19: Baseband Processor (Bbp) Introduction

    VDDC_2V65 / VDDK_2V75 VVGPS_1V8 VGPS_1V8 VDDH_VGA_1V5 / VDDF_2V5 VGPS_2V8 VGPS_2V8 VDDG_2V85 / VCORE / VCORE Figure 3-1-1 CF360 Block Diagram LGE Internal Use Only - 20 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 20: External Memory Interface

    Erase speed 1.5ms 1 Block = 16K Byte 8MByte/s Table 3- 1- 1. External Memory Interface Spec. of CF360 Figure 3- 1- 2. External Memory Configuration of CF360 Copyright © 2008 LG Electronics. Inc. All right reserved. - 21 -...

  • Page 21: Hardware Architecture

    3.1.3 Hardware Architecture A. Block Diagram Figure 3-1-3. Access system of Ericsson DB3200 Figure 3-1-4. Application system of Ericsson DB3200 LGE Internal Use Only - 22 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 22: 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 © 2008 LG Electronics. Inc. All right reserved. - 23 - LGE Internal Use Only...

  • Page 23: Only For Training And Service Purposes

    WRX_Q_P TX_POW WPOW_DET DAC_I_NEG WTX_I_N DAC_I_POS WTX_I_P DAC_Q_NEG WTX_Q_N DAC_Q_POS WTX_Q_P Figure 3-1-6. Schematic of WCDMA RF Interface LGE Internal Use Only - 24 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 24: Sim Interface

    ACC Transmit Data UART1 APP_GPIO_0 APP_UART_RX APP Receive Data APP_GPIO_1 APP_UART_TX APP Transmit Data Table 3-1-3. UART Interface Copyright © 2008 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

    ACC_SPI_DO Output ACC_GPIO_22 ACC_SPI_OUT_CLK Output ACC_GPIO_26 ACC_GP_SPI_BT_CSn Output ACC_GPIO_27 ACC_GP_SPI_BT_IRQ Input Table 3-1-4. DB3200 ACC GPIO Map Table LGE Internal Use Only - 26 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 26: Only For Training And Service Purposes

    Output APP_GPIO_22 APP_GP_GPS_PON Output Table 3-1-5. DB3200 APP GPIO Map Table Table 3-1-5. DB3200 APP GPIO Map Table Copyright © 2008 LG Electronics. Inc. All right reserved. - 27 - LGE Internal Use Only Only for training and service purposes...

  • Page 27: Only For Training And Service Purposes

    If connected to DCON, it indicates a Full speed transceiver VBUS Power supply for AB3100 USB block Table 3-1-6. USB Signal Interface of DB3200 LGE Internal Use Only - 28 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 28: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Figure 3-1-8. Schematic of DB3200 USB block Figure 3-1-9. Schematic of USB Transceiver Copyright © 2008 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

    If a magnet is close to the hall-effect switch(U504), the voltage at Pin 4 of U504 goes to 1.8V. Otherwise 0V. This APP_GP_FILPSENSE signal is delivered to DB3200. Figure 3-1-10. Slider On/Off Detector LGE Internal Use Only - 30 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 30: Bluetooth Interface

    3. TECHNICAL BRIEF 3.1.11 Bluetooth Interface CF360 supports Bluetooth operation using ST’s STLC2500D 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 31: 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 - 32 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 32: Only For Training And Service Purposes

    - HCI interface between DB3200 and STLC2500D - Audio signal interface between DB3200/AB3100 and STLC2500D - 2.4GHz, 50 ohm matching Copyright © 2008 LG Electronics. Inc. All right reserved. - 33 - LGE Internal Use Only Only for training and service purposes...

  • Page 33: Microsd Interface Card

    3. TECHNICAL BRIEF 3.1.12 MicroSD Interface card CF360 supports the Micro SD card interface as external memory card. Micro SD card has 4-data line, so KS500 uses 4-data lines. All control and data lines are connected to DB3200. Cause of the difference between DB3200 and Micro SD card, a level shifter should be added.

  • Page 34: Power On Sequence

    Power for DB3200 Press END key PWRRSTn PWRRST_N PWRRSTN IRQ0_N ONSWAn IRQ0n ONSWA_N Figure 3-1-13. Power On Sequence Copyright © 2008 LG Electronics. Inc. All right reserved. - 35 - LGE Internal Use Only Only for training and service purposes...

  • Page 35: Only For Training And Service Purposes

    Volume up side key Volume down side key Table 3-1-8. Key Matrix Mapping Table Figure 3-1-9. MAIN PCB Key Pad Circuit LGE Internal Use Only - 36 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 36: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Figure 3-1-10. Slide PCB Key Pad Circuit Copyright © 2008 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

    3. TECHNICAL BRIEF 3.1.16 A-GPS CF360 supports A-GPS operation using Infineon PMB2525 A-GPS module. The PMB 2525 Hammerhead II GPS IC is Infineon Technologies and Global Locate’s next generation IC solution for GPS (Global Positioning System). The Hammerhead II GPS single chip device enables the realization of a cost efficient GPS solution by integrating the complete radio frequency front-end as well as the signal processing functionality in a single die.

  • Page 38: Only For Training And Service Purposes

    3. TECHNICAL BRIEF CF360 A-GPS Schematic Figure 3-1-11. Schematic of PMB2525 Copyright © 2008 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 3.2.1 Camera & Camera Interface Figure 3-2-1. Camera Interface (in DB3200) Figure 3-2-2 1.3MCamera Connector(Main Board) LGE Internal Use Only - 40 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 40: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Figure 3-2-3. Main to LCD FPCB Connector(70Pin - Main) Figure 3-2-4.LCD FPCB Connector Copyright © 2008 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

    The camera port supply 24MHz master clock to camera module and receive 48MHzpixelclock(15fps) for 1.3M camera Table 3-2-1. Interface between Main board and 1.3M camera (in Main) LGE Internal Use Only - 42 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 42: Camera Regulator

    1.5V LDO is used for only VGA digital core. It’s derived from AB3100 and controlled by camera driver file. Figure 3-2-6 2.75V Camera LDO in AB3100 Copyright © 2008 LG Electronics. Inc. All right reserved. - 43 - LGE Internal Use Only...

  • Page 43: Only For Training And Service Purposes

    The LCD is controlled by 8-bit PDI(Parallel Data Interface) in DB3200. Table 3-2-4. Interface between LCD module and SUB PCB LGE Internal Use Only - 44 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 44: Lcd Module

    3.2.4 LCD Module 262K TFT LCD 320 X 240 pixels Main LCD Driver IC ILI9325DS Figure 3-2-8. LCD Module(Main LCD) Copyright © 2008 LG Electronics. Inc. All right reserved. - 45 - LGE Internal Use Only Only for training and service purposes...

  • Page 45: Lcd Backlight Illumination

    There are 4 top view white LEDs in Main board backlight circuit, which are driven by LED1, from AB3100. LED2 port Figure 3-2-10. Keypad Backlight LED Interface and Backlight Circuit LGE Internal Use Only - 46 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 46: Audio Part

    (PGA). The decoder has a receive volume control. The audio inputs and outputs can be switched to normal or auxiliary ports. Copyright © 2008 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 3-3-2. Audio Interface Detailed Diagram(AB3100) Figure 3-3-3 . Audio Section scheme LGE Internal Use Only - 48 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 48: Audio Mode

    Video Telephony Mode SPKRP/SPKRN MIDI Only Loud Speaker SPKRP/SPKRN Loud Speaker Mode SPKR/SPKN AUXO1/AUXO2 Headset Mode Table 3-3-1. Audio Mode Copyright © 2008 LG Electronics. Inc. All right reserved. - 49 - LGE Internal Use Only Only for training and service purposes...

  • Page 49: Voice Call

    • Loud Speaker / Video Telephony Mode : AB3100 SPK Amp SPKR/N AUDIO AMP(TPA6205) Speaker(8Ω) •Headset Mode : Auxiliary audio amplifier AUXO1/2 AUDIO AMP(MAX9724D) Head Phone LGE Internal Use Only - 50 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 50: Only For Training And Service Purposes

    AB3100 Input(SPK1N/1P) Video Telephony Mode : C-MIC(SPM0410LR5H) AB3100 Input(MIC1N/1P) Headset Mode : Headset MIC Analog Switch(FSA201) AB3100 Input(AUXI1N/1P) Copyright © 2008 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

    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. LGE Internal Use Only - 52 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 52: Video Telephony

    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 CF360 schematic Diagram. Part Number marked on CF360 Schematic Diagram. ITEM PART NUMBER...

  • Page 53: Gpadc (General Purpose Adc) And Autoadc2

    Resource Name Description GPA2 ADC_DET Micro usb type detect GPA7 VBACKUP Backup battery Table 3-4-1. GPADC channel spec LGE Internal Use Only - 54 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 54: Charger Control

    VBAT Current sensing input positive CHSENSE- Analog VBAT Current sensing input negative Table 3-5-1. Charger Control channel spec Copyright © 2008 LG Electronics. Inc. All right reserved. - 55 - LGE Internal Use Only Only for training and service purposes...

  • Page 55: Fuel Gauge

    3. TECHNICAL BRIEF 3.5.1 Fuel Gauge AB3100 supports the measurement of the current consumption/charging current in the CF360 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 56: Battery Temperature Measurement

    Fig 3-5-4. Battery Temperature Measurement Name Type Unused Description BDATA Digital Input/Output Unconnected current output Table 3-5-3 BDATA channel spec Copyright © 2008 LG Electronics. Inc. All right reserved. - 57 - LGE Internal Use Only Only for training and service purposes...

  • Page 57: Charging Part

    3.67 ~3.50 (V) 3.50 ~3.20 (V) 100~51 (%) 51~22 (%) 22~3 (%) 3~0(%) Fig. 3-5-6 Battery Block Indication LGE Internal Use Only - 58 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 58: Only For Training And Service Purposes

    CCCV algorithm. (Fig.3-5-8) shows the charging voltage and charging current change. Fig. 3-5-7. CCCV charging method Copyright © 2008 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

    • From 0 °C to 45 °C : Normal charging temperature • Over 45 °C : Extended temperature LGE Internal Use Only - 60 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 60: Voltage Regulation

    It provides power for the 32 kHz oscillator and the real-time clock (RTC). Table. 3-6-1. LDO and Buck Copyright © 2008 LG Electronics. Inc. All right reserved. - 61 - LGE Internal Use Only...

  • Page 61: 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 CF360 consists of an antenna switch and an EDGE power amplifier module (PAM).

  • Page 62: Transmitter Part

    D/A-converter in the W-CDMA radio circuit. These DACs are controlled through the 3-wire-bus Figure 3-2-1. WCDMA Transmitter Architecture Copyright © 2008 LG Electronics. Inc. All right reserved. - 63 - LGE Internal Use Only Only for training and service purposes...

  • Page 63: Receiver Part

    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. Figure 3-2-2. WCDMA Receiver Architecture LGE Internal Use Only - 64 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 64: Only For Training And Service Purposes

    Automatic trimming of the VCO center frequency and the RC constant ensures that the variation of the PLL dynamics is sufficiently low. Figure 3-2-3. WCDMA Transceiver schematic Copyright © 2008 LG Electronics. Inc. All right reserved. - 65 - LGE Internal Use Only...

  • Page 65: Power Amplifier Module

    VEN pad. No external supply side switch is needed as typical “off” leakage is 15 microamperes with full primary voltage supplied from the battery. Figure 3-2-4. SKY77175 Functional Block Diagram LGE Internal Use Only - 66 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 66: Only For Training And Service Purposes

    - 8PSK low bands: Class E2 (27 dBm) - 8PSK high bands: Class E2 (26 dBm) - WCDMA: class 3 (+24dBm) Copyright © 2008 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

    FM path. The block also outputs a low-frequency square wave to the FM paths, to enhance the speed of the auto tuning for the second FM path. LGE Internal Use Only - 68 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 68: Only For Training And Service Purposes

    3-wire control bus. The PGA has a built in second order loop for DC-offset cancellation. The output of the receiver is analog differential I, Q signals. Copyright © 2008 LG Electronics. Inc. All right reserved. - 69 - LGE Internal Use Only...

  • Page 69: Only For Training And Service Purposes

    Front End to the correct duplexer. The output from the duplexer is connected to the LNA input in the WCDMA receiver. Figure 3-4-1. Front-End Module LGE Internal Use Only - 70 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 70: Only For Training And Service Purposes

    (GPRS) multi-slot operation and EDGE Polar Modulation. WCDMA switch-through support is provided by three dedicated high-linearity ports. Figure 3-4-2. SKY77521Functional Block Diagram Figure 3-4-3. Front End part schematic Copyright © 2008 LG Electronics. Inc. All right reserved. - 71 - LGE Internal Use Only Only for training and service purposes...

  • Page 71: Only For Training And Service Purposes

    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 - 72 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 72: Trouble Shooting

    VDDC_2V65(C408) 2.65V VDDH_2V75(C409) 2.75V VDDF_2V5 (C410) 2.5V VDDG_2V85 (C411) 2.85V VDDK_2V75(C412) 2.75V VCORE(C421) 1.2V UART_TX Change main board Copyright © 2008 LG Electronics. Inc. All right reserved. - 73 - LGE Internal Use Only Only for training and service purposes...

  • Page 73: Usb Trouble

    VDDE_1V8 (C523) is same to 1.8V? ACC_USB_PUEN is 1.8V? Change main board Finish USB module C523 < Main Board – Bottom side > LGE Internal Use Only - 74 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 74: Sim Detect Trouble

    < Main Board - Bottom side > SIM works well? Finish Change SIM card Finish SIM works well? Change main board Copyright © 2008 LG Electronics. Inc. All right reserved. - 75 - LGE Internal Use Only Only for training and service purposes...

  • Page 75: Microsd Card Trouble

    (DETn pin = 1.8V) Finish MicroSD works well? Change main board < Sub Board - Bottom side > LGE Internal Use Only - 76 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 76: Keypad And Optical Joystick Key Trouble

    DOME sheet or side key or side key is working? CN505 Resolder BtoB connector(CN505) Finish Keypad works well? Change Main Board Copyright © 2008 LG Electronics. Inc. All right reserved. - 77 - LGE Internal Use Only Only for training and service purposes...

  • Page 77: Camera Trouble

    1.3M Camera’s Operation is OK? CN504 Change 1.3M Camera < Main Board – Bottom side > Change Main board 1.3M Camera Works LGE Internal Use Only - 78 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 78: Main Lcd Trouble

    Change FPCB or Key PCB Change LCD Module The LCD Works LCD Display OK? Change the Main Board Copyright © 2008 LG Electronics. Inc. All right reserved. - 79 - LGE Internal Use Only Only for training and service purposes...

  • Page 79: Only For Training And Service Purposes

    Main Board 70 pin B to B Connector Key PCB 40 pin Connector (BOTTOM side) LCD FPCB 35 pin Connector (BOTTOM side) LGE Internal Use Only - 80 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 80: Main & Key Led Trouble

    Resolder or Change backlights LED ( Main : LD501~LD504, Key : LD100 ,LD101,LD104,LD105,LD106,LD109) Keypad Backlights Works? Finish Change Main Board Copyright © 2008 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

    4. TROUBLE SHOOTING < Main Board – Top side > < Key Board – Top side > LGE Internal Use Only - 82 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 82: Slider On/Off Trouble

    Place magnet on U504 Slide OK? Pin 4 of U504 = 1.8V Change U504 Slide OK? Finished Change Main board Copyright © 2008 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

    4. TROUBLE SHOOTING Pin 1 Pin 4 Pin 6 LGE Internal Use Only - 84 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 84: Audio Trouble Shooting

    Receiver Note : It is recommended that engineer should check the soldering of R, L, C along the corresponding path before every step. Copyright © 2008 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

    Resolder the Receiver receiver OK? Can you hear sine wave Change the Receiver out of the receiver ? LGE Internal Use Only - 86 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 86: Only For Training And Service Purposes

    4. TROUBLE SHOOTING C527 C526 MAIN PCB (TOP) #1,#2PIN OF CN05 C505 Main PCB Top FPCB Top Copyright © 2008 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 Measured 1khz Sine Wave Signal Measured 1khz Sine Wave Signal LGE Internal Use Only - 88 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 88 5. Speaker Note : It is recommanded that engineer should check the soldering of R, L, C along the corresponding path before every step. Copyright © 2008 LG Electronics. Inc. All right reserved. - 89 - LGE Internal Use Only...

  • Page 89: Only For Training And Service Purposes

    At C446,C447 ? Change the main board Can you hear sine wave Change each Speaker out of a speaker ? LGE Internal Use Only - 90 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 90: Only For Training And Service Purposes

    4. TROUBLE SHOOTING B SIDE C441,C442 U401 FB403(TP1) FB404(TP2) C446(TP3) C447(TP4) Copyright © 2008 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

    4. TROUBLE SHOOTING Measured 1khz Sine Wave Signal LGE Internal Use Only - 92 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 92: Only For Training And Service Purposes

    Audio signal level of the microphone – Soldering of components • Signal from the mic – – C426,C427 on main board – AB3100 Copyright © 2008 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

    Does not open Tx Change Main board path about Mic? Change the MIC Change Main board Does it work properly ? LGE Internal Use Only - 94 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 94: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Copyright © 2008 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

    Headset Can you hear sine wave Change the main Board out of the receiver ? LGE Internal Use Only - 96 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 96: Only For Training And Service Purposes

    Change the main B’d at C515(TP2) ? Change the main Board Does it work properly ?? Try again from the start Copyright © 2008 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 4.10.6. Headset B SIDE LGE Internal Use Only - 98 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 98: Charger Trouble Shooting

    • Trouble Shooting Procedure - Check the charger connecter - Check the Charging current Path - Check the battery Copyright © 2008 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

    Is it charging properly Is it charging properly after changing Q401(TP2)? Change the board Change the board Trouble Shooting - Charging LGE Internal Use Only - 100 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 100: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Main Board ( Top side) Main Board ( Bottom side) Copyright © 2008 LG Electronics. Inc. All right reserved. - 101 - LGE Internal Use Only Only for training and service purposes...

  • Page 101: Checking Bluetooth Block

    2. Check BT Chip Block TP3: 1.8V , TP4 : 2.75V Main Board ( Bottom side) - AB31000 block LGE Internal Use Only - 102 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 102: Only For Training And Service Purposes

    Main Board ( Bottom side) Chip Antenna(ANT200) - Bluetooth Chip and Antenna (BT chip Output) (BT chip Output) Copyright © 2008 LG Electronics. Inc. All right reserved. - 103 - LGE Internal Use Only Only for training and service purposes...

  • Page 103: Rf Component

    U102 X100 N100 U110 FL102 FL101 FL103 FL100 SW100 U100 Main Board : Bottom side WCDMA BC2/5 Coupler LGE Internal Use Only - 104 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 104: 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 Copyright © 2008 LG Electronics. Inc. All right reserved. - 105 - LGE Internal Use Only Only for training and service purposes...

  • Page 105: Checking Common Power Source Block

    WCDMA PAM Block GSM PA VBAT Step 2 GSM PAM Block Main Board : Bottom side - Common Source Block LGE Internal Use Only - 106 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 106: Only For Training And Service Purposes

    4. TROUBLE SHOOTING 4.15.1 Step 1 Copyright © 2008 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

    Change Board Short? From TP4 to TP3 Soldering Check Component (CN400) In Power Source Block LGE Internal Use Only - 108 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 108: Only For Training And Service Purposes

    4.15.2 Step 2 Previous Page : Power Source Block GSM PAM (Bottom) Figure 4-6. Step 2 : GSM PAM Block Copyright © 2008 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

    From TP1 to TP3, TP4, TP5 Soldering Check Component (CN400) In Power Source Block LGE Internal Use Only - 110 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 110: Only For Training And Service Purposes

    Check Point VDIGRAD_1V8 1.8V OK? Check the AB31000 (TP2) Common Input Power is OK See The Next Part Copyright © 2008 LG Electronics. Inc. All right reserved. - 111 - LGE Internal Use Only Only for training and service purposes...

  • Page 111: Checking Vcxo Block

    Transceiver Main board : bottom side Notebook to send TP command Oscilloscope Phone Connection for Checking VCXO Block LGE Internal Use Only - 112 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 112: Only For Training And Service Purposes

    If you already check this crystal part, you can skip check 1 Test Point (Crystal Part) RF3300 RF3300 Schematic (Crystal Part) Figure 4-15. 26MHz at TP1 Copyright © 2008 LG Electronics. Inc. All right reserved. - 113 - LGE Internal Use Only Only for training and service purposes...

  • Page 113: Only For Training And Service Purposes

    DB3200 RF3300 RF3300 Schematic (Crystal Part) Figure 4-19. Schematic (26MHz at BB Part) Figure 4-20. 26MHz at TP1 LGE Internal Use Only - 114 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 114: Only For Training And Service Purposes

    Changing XTAL or U107 26MHz at VCXO Refer to Figure 4-15 VCXO part is O.K. Check next stage Copyright © 2008 LG Electronics. Inc. All right reserved. - 115 - LGE Internal Use Only Only for training and service purposes...

  • Page 115: Checking Front End Module Block

    4.17 Checking Front End Module Block <Bottom> Antenna Switch Module (+ GSM/EDGE PA) Figure 4-21. Front End Module Block (Bottom and Top) LGE Internal Use Only - 116 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 116: Only For Training And Service Purposes

    (+ GSM/EDGE PA) Figure 4-21. Front End Module Block (Bottom and Top) Antenna Switch Module (+ GSM/EDGE PA) Copyright © 2008 LG Electronics. Inc. All right reserved. - 117 - LGE Internal Use Only Only for training and service purposes...

  • Page 117: Checking Front End Module Block Input Logic

    DCS/PCS Tx ANTSW0/1 ANTSW2 ANTSW3 GSM850 Rx EGSM Rx ANTSW0 ANTSW2 ANTSW3 PCS Rx DCS Rx ANTSW0 ANTSW2 ANTSW3 LGE Internal Use Only - 118 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 118: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Table 4-1. Front End module Logic Copyright © 2008 LG Electronics. Inc. All right reserved. - 119 - LGE Internal Use Only Only for training and service purposes...

  • Page 119: Only For Training And Service Purposes

    Resoldering Check ANTSW0(C128) To check Switch input power source Check each mode Change the Board By TP command LGE Internal Use Only - 120 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 120: Only For Training And Service Purposes

    4.17 part Check Try 4.17 part Logic OK? See the Next mode Change the Board (EGSM Rx Mode) Copyright © 2008 LG Electronics. Inc. All right reserved. - 121 - LGE Internal Use Only Only for training and service purposes...

  • Page 121: Only For Training And Service Purposes

    4.17 part Check Try 4.17 part Logic OK? See the Next mode Change the Board (GSM850/EGSM Tx Mode) LGE Internal Use Only - 122 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 122: Only For Training And Service Purposes

    See the Next mode ANTSW0/1:Low (DCS Rx Mode) ANTSW2:Low Change the Board ANTSW3:High WON : Low Change U100 Copyright © 2008 LG Electronics. Inc. All right reserved. - 123 - LGE Internal Use Only Only for training and service purposes...

  • Page 123: Only For Training And Service Purposes

    4.17 part Check Try 4.17 part Logic OK? See the Next mode Change the Board (DCS Tx Mode) LGE Internal Use Only - 124 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 124: Only For Training And Service Purposes

    4.17 part Check Try 4.17 part Logic OK? See the Next mode Change the Board (PCS Tx Mode) Copyright © 2008 LG Electronics. Inc. All right reserved. - 125 - LGE Internal Use Only Only for training and service purposes...

  • Page 125: Only For Training And Service Purposes

    Figure 4-26. 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 - 126 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 126: Only For Training And Service Purposes

    Figure 4-27-1. WCDMA1900 Mode WCDMA1900 4.17 part Check Try 4.17 part Logic OK? Change the Board WCDMA850 Mode Copyright © 2008 LG Electronics. Inc. All right reserved. - 127 - LGE Internal Use Only Only for training and service purposes...

  • Page 127: Only For Training And Service Purposes

    Input Signal and Power to Change the Board Front End Module block is OK. See the Next Page LGE Internal Use Only - 128 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 128: Checking Wcdma Block

    4. Check RF TX Level ④ 5. Check PAM Block ② 6. Check RF RX Level Re-download SW, Cal Copyright © 2008 LG Electronics. Inc. All right reserved. - 129 - LGE Internal Use Only Only for training and service purposes...

  • Page 129: Checking Control Signal

    First of all, control signal should be checked. (data, clk, strobe) TP3 [RF_CTRL_CLK] TP2 [RF_CTRL_DATA] TP1 [RF_CTRL_STR1] Figure 4-28-1. Test points (Control Signal) Bottom View LGE Internal Use Only - 130 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 130 Figure 4-28-2. Schematic (Control Signal) Notebook to send TP command Oscilloscope Phone Figure 4-29. Connection for Checking Control Signal Copyright © 2008 LG Electronics. Inc. All right reserved. - 131 - LGE Internal Use Only Only for training and service purposes...
  • Page 131 If signal is not OK even after downloading, Change the U301 Control Signal is O.K. Check next stage LGE Internal Use Only - 132 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 132: Checking Rf Tx Level

    [WBAND 2 PAM Input] PAM Input] FEM Output Ant. SW Ant. Figure 4-31. Test point (RF TX Level) Copyright © 2008 LG Electronics. Inc. All right reserved. - 133 - LGE Internal Use Only Only for training and service purposes...
  • Page 133 [WBAND 5 BAND 5] PAM Input] [RF3300 Output [WBAND 2 BAND 2] PAM Input] Ant. SW Ant. FEM Output LGE Internal Use Only - 134 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 134 Fig. 4-33-1 Output Level at PAM Input Fig. 4-33-2 Output Level at RF3300 Output ( TP1&TP2) ( TP3&TP4) Copyright © 2008 LG Electronics. Inc. All right reserved. - 135 - LGE Internal Use Only Only for training and service purposes...
  • Page 135 Fig. 4-33-4 Output Level at RF test connector Fig. 4-33-3 Output Level at FEM Output ( TP6) (TP5) Fig. 4-33-5 Output Level at TP7 .Ant LGE Internal Use Only - 136 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 136 Refer to Figure 4-33-1 You have to check PAM block. The U107 will be not operated. Change the board Copyright © 2008 LG Electronics. Inc. All right reserved. - 137 - LGE Internal Use Only Only for training and service purposes...

  • Page 137: Checking Pam Block

    VCC_PA (C108, C109) from DC/DC Duplexer Output (C111, C133) Figure 4-34. Test points of WCDMA TX PAM block LGE Internal Use Only - 138 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 138 Check C108, C109 Change 3.4V ? To Check PAM VCC BIAS the DC/DC from DC/DC converter (VCC_WPA) Change The PAM Copyright © 2008 LG Electronics. Inc. All right reserved. - 139 - LGE Internal Use Only Only for training and service purposes...
  • Page 139 WRX_Q_P (PIN 2) WRX_Q_N (PIN 1) WRX_I_P (PIN 4) WRX_I_N (PIN 3) Figure 4-36-2. RX I, Q signal LGE Internal Use Only - 140 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 140 Verify whether the signal was similar as Figure Change RF3300 (U107) Similar? 4-36-2 with Oscilloscope. Check Next Stage Copyright © 2008 LG Electronics. Inc. All right reserved. - 141 - LGE Internal Use Only Only for training and service purposes...

  • Page 141: Checking Gsm Block

    5. Check RF TX Path ③ 6. Check RF RX Path Figure 4-37-1. GSM Block (Bottom) Re-download SW, Cal LGE Internal Use Only - 142 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 142: Checking Regulator Circuit

    Refer to 4.19.2 Checking Ant. SW Module IF you already check this point while checking Ant. SW module (4.19.2), You can skip this test. Copyright © 2008 LG Electronics. Inc. All right reserved. - 143 - LGE Internal Use Only...
  • Page 143 Figure 4-38. Test points of RF control signals RF_CTRL_STRB RF_CTRL_DATA RF_CTRL_CLK (PIN11) (PIN10) (PIN12) RF3300 STRB STRB DATA DATA Figure 4-39. GSM RF Control signal LGE Internal Use Only - 144 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 144 Refer to Figure 4-39 Short? Similar? Re-download SW Change the board Control signal is OK. See next page to check Copyright © 2008 LG Electronics. Inc. All right reserved. - 145 - LGE Internal Use Only Only for training and service purposes...
  • Page 145 4. TROUBLE SHOOTING 4.20.5 Checking RF Tx Path A. GSM Tx path Level ② ③ ③′ ① LGE Internal Use Only - 146 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 146 4. TROUBLE SHOOTING ② PIN 6,7,8,9 ③ ① ③′ (Bottom) Figure 4-41. Test Points of GSM850/EGSM/DCS/PCS Tx Path Copyright © 2008 LG Electronics. Inc. All right reserved. - 147 - LGE Internal Use Only Only for training and service purposes...
  • Page 147 Refer to Figure 4-42. GSM850>32dBm EGSM>32dBm DCS>29dBm PCS>29dBm GSM850/EGSM/DCS/PCS Tx path OK. See Chapter 4.8.6 to check Rx path LGE Internal Use Only - 148 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 148 Check GSM RF Transceiver GSM850/EGSM/DCS/PCS Redownload SW Output power at ①. >5dBm See Next page to check Tx path Copyright © 2008 LG Electronics. Inc. All right reserved. - 149 - LGE Internal Use Only Only for training and service purposes...
  • Page 149 DCS/PCS: 30.0dBm GSM850/EGSM/DCS/PCS (U100) PAM output power at C111. GSM Tx path OK. See Next page to check LGE Internal Use Only - 150 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 150 GSM : - 50dBm DCS : - ① 50dBm PCS : -50dBM Figure 4-45. GSM/DCS/PCS Rx Path Level Copyright © 2008 LG Electronics. Inc. All right reserved. - 151 - LGE Internal Use Only Only for training and service purposes...
  • Page 151 Agilent 8960 Setting CW Mode GSM850 : -50dBm@Ch190(881.6MHz) EGSM : -50dBm@Ch65(948MHz) DCS : -50dBm@Ch700(1842.8MHz) PCS : -50dBm@ch700(1967.8MHz) v Oscilloscope Setting LGE Internal Use Only - 152 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 152 Check Change Ant. SW module GSM850/EGSM:-51.5dBm GSM850/EGSM/DCS/PCS (U100) DCS/PCS:-51.7dBm Rx signal level at ②. GSM Rx path OK. Copyright © 2008 LG Electronics. Inc. All right reserved. - 153 - LGE Internal Use Only Only for training and service purposes...

  • Page 153: Checking A-Gps Block

    4. Change the LNA ⑤ ① 5. Change the Module (Top) Change the main board Figure 4-48. GPS BLOCK LGE Internal Use Only - 154 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 154 VGPS_1V8(C202) Figure 4-49. GPS power line CH1. VGPS_1V8 CH3. VGPS_2V8 CH4. VGPS_CORE(1.5V) 200u Figure 4-50. GPS power signal Copyright © 2008 LG Electronics. Inc. All right reserved. - 155 - LGE Internal Use Only Only for training and service purposes...
  • Page 155 GPS_Power on Figure 4-51. CLK line CH2. GPS_PON CH3. CNTIN (MCLK) CH4. CLK (TCXO) 250us Figure 4-52. CLK signal LGE Internal Use Only - 156 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 156: Download

    Select Model DLL. • Download Configuration Setup DLL configuration. • DLL Information Show DLL configuration information what is selected. Copyright © 2008 LG Electronics. Inc. All right reserved. - 157 - LGE Internal Use Only Only for training and service purposes...
  • Page 157 Unchcked, use fixed USB port. You should assign port number with USB Address. • Image Files Select Image binary files. • GDFS File Select GDFS files. LGE Internal Use Only - 158 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 158: Download

    • Close all preference dialog and select Start Button on main page. • Connect phone and wait until download finished. * Usage fixed USB port Copyright © 2008 LG Electronics. Inc. All right reserved. - 159 - LGE Internal Use Only...
  • Page 159 • Check USB Address which is loaded. • Do 2 again. • After assign all ports, press save dialog. LGE Internal Use Only - 160 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 160: Block Diagram

    DB_I2S0 Head Stereo Headset A-GPS Bluetooth A-GPS Bluetooth Figure 6-1 CF360 Block Diagram Figure 6-1 CF360 Block Diagram Copyright © 2008 LG Electronics. Inc. All right reserved. - 161 - LGE Internal Use Only Only for training and service purposes...
  • Page 161 LGE Internal Use Only - 162 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 162: Circuit Diagram

    7. CIRCUIT DIAGRAM Copyright © 2008 LG Electronics. Inc. All right reserved. - 163 - LGE Internal Use Only Only for training and service purposes...
  • Page 163 7. CIRCUIT DIAGRAM LGE Internal Use Only - 164 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 164 7. CIRCUIT DIAGRAM Copyright © 2008 LG Electronics. Inc. All right reserved. - 165 - LGE Internal Use Only Only for training and service purposes...
  • Page 165 7. CIRCUIT DIAGRAM LGE Internal Use Only - 166 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 166 7. CIRCUIT DIAGRAM Copyright © 2008 LG Electronics. Inc. All right reserved. - 167 - LGE Internal Use Only Only for training and service purposes...
  • Page 167 7. CIRCUIT DIAGRAM LGE Internal Use Only - 168 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 168 7. CIRCUIT DIAGRAM t l i & Copyright © 2008 LG Electronics. Inc. All right reserved. - 169 - LGE Internal Use Only Only for training and service purposes...
  • Page 169 LGE Internal Use Only - 170 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 170: Bga Pin Map

    8. BGA Pin Map 8. BGA Pin Map 8. BGA Pin Map DB3200 ( Digital BB) : NC pin Copyright © 2008 LG Electronics. Inc. All right reserved. - 171 - LGE Internal Use Only Only for training and service purposes...
  • Page 171 8. BGA Pin Map AB3100 (Analog Baseband) : NC pin LGE Internal Use Only - 172 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 172 8. BGA Pin Map MCP (2G NAND / 1G SDRAM) Copyright © 2008 LG Electronics. Inc. All right reserved. - 173 - LGE Internal Use Only Only for training and service purposes...
  • Page 173 8. BGA Pin Map RF3300 LGE Internal Use Only - 174 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 174 8. BGA Pin Map Bluetooth STLC2500D Copyright © 2008 LG Electronics. Inc. All right reserved. - 175 - LGE Internal Use Only Only for training and service purposes...
  • Page 175 8. BGA Pin Map PMB2525 LGE Internal Use Only - 176 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 176: Pcb Layout

    CN503 Camera Key Conn U200 GPS LDO No 1.3M Camera Access No GPS connection LD50~1504 Key Backlight No Key LED Copyright © 2008 LG Electronics. Inc. All right reserved. - 177 - LGE Internal Use Only Only for training and service purposes...
  • Page 177 No Service Filter GSM Rx Sensitivity U100 FEM No Service WCDMA/GSM Rx Sensitivity & Tx Power No Service LGE Internal Use Only - 178 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 178 9. PCB LAYOUT CN102 Slide conn No LCD No Power On Copyright © 2008 LG Electronics. Inc. All right reserved. - 179 - LGE Internal Use Only Only for training and service purposes...
  • Page 179 9. PCB LAYOUT CN101 FPCB Conn No Vibration No Speaker No LCD No Power On LGE Internal Use Only - 180 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 180 9. PCB LAYOUT Copyright © 2008 LG Electronics. Inc. All right reserved. - 181 - LGE Internal Use Only Only for training and service purposes...
  • Page 181 CN100 Slide Conn No LCD CN101 LCD Conn No Power On No LCD BAT100 Backup battery No backup battery input LGE Internal Use Only - 182 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 182: 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 Environment 10.2.1 H/W Environment...

  • Page 183: Calibration Environment

    Target Power 23.0 23.0 23.0 Channel 4132 4183 4233 WCDMA850 Frequency 826.4Mhz 836.6Mhz 846.6Mhz Target Power 23.0 23.0 23.0 LGE Internal Use Only - 184 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 184: Program Operation

    WCDMA 850 - Instrument (Agilent8960, Tektronix PS2521G) control - UART communication with mobile phone Figure 10-2. HotKimchi Window Copyright © 2008 LG Electronics. Inc. All right reserved. - 185 - LGE Internal Use Only Only for training and service purposes...
  • Page 185 - Setup “Ezlooks” menu such as the following figure. - Setup “Line System” menu such as the following figure. Adjust the number of times LGE Internal Use Only - 186 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 186 (By-Pass : not control by GPIB) Setup UART port 10.5.3 Calibration Start and End - Select “MODEL” - Click “Start” RF Calibration Copyright © 2008 LG Electronics. Inc. All right reserved. - 187 - LGE Internal Use Only Only for training and service purposes...
  • Page 187 LGE Internal Use Only - 188 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 188: Exploded View & Replacement Part List

    11. EXPLODED VIEW & REPLACEMENT PART LIST 11.1 EXPLODED VIEW Copyright © 2008 LG Electronics. Inc. All right reserved. - 189 - LGE Internal Use Only Only for training and service purposes...
  • Page 189 ASS’Y EXPLODED VIEW LGE Internal Use Only - 190 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 190: Replacement Parts

    MOLD, POM LUCEL HI-510, , , , , Black WITHOUT MFBD00 FILTER,MIKE MFBD0032201 COMPLEX, (empty), , , , , COLOR Copyright © 2008 LG Electronics. Inc. All right reserved. - 191 - LGE Internal Use Only Only for training and service purposes...
  • Page 191 COMPLEX, (empty), , , , , COLOR WITHOUT MTAD00 TAPE,WINDOW MTAD0090801 COMPLEX, (empty), , , , , COLOR LGE Internal Use Only - 192 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 192 CAN,SHIELD MCBA0034001 PRESS, STS, , , , , SILVER WITHOUT MLAZ00 LABEL MLAZ0038301 PID Label 4 Array COLOR Copyright © 2008 LG Electronics. Inc. All right reserved. - 193 - LGE Internal Use Only Only for training and service purposes...

  • Page 193: Main Component

    D100 DIODE,TVS EDTY0009101 SOD-923 ,5 V,150 mW,R/TP ,1.0*0.6*0.4 EMD2 ,30 V,1 A,R/TP ,VF=1.5V(IF=200mA) , D101 DIODE,SWITCHING EDSY0011901 IR=30uA(VR=10V) LGE Internal Use Only - 194 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 194 POLYI ,0.18 mm,DOUBLE , ,; , , , , , , , , , SPKY02 PCB,SIDEKEY SPKY0061801 POLYI ,0.2 mm,DOUBLE , ,; , , , , , , , , , Copyright © 2008 LG Electronics. Inc. All right reserved. - 195 - LGE Internal Use Only Only for training and service purposes...
  • Page 195 ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP C129 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP C130 CAP,CHIP,MAKER ECZH0000813 100 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only - 196 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 196 ECCH0000182 0.1 uF,10V ,K ,X5R ,HD ,1005 ,R/TP C238 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. - 197 - LGE Internal Use Only Only for training and service purposes...
  • Page 197 ECCH0004904 1 uF,6.3V ,K ,X5R ,TC ,1005 ,R/TP C331 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP LGE Internal Use Only - 198 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 198 10000000 pF,6.3V ,M ,X5R ,TC ,1608 ,R/TP , , ,[empty] C417 CAP,CERAMIC,CHIP ECCH0005604 ,[empty] ,[empty] ,[empty] ,[empty] ,[empty] ,0.8 mm Copyright © 2008 LG Electronics. Inc. All right reserved. - 199 - LGE Internal Use Only Only for training and service purposes...
  • Page 199 220 nF,10V ,K ,X5R ,TC ,1005 ,R/TP C446 CAP,CERAMIC,CHIP ECCH0000129 120 pF,50V,J,NP0,TC,1005,R/TP C447 CAP,CERAMIC,CHIP ECCH0000129 120 pF,50V,J,NP0,TC,1005,R/TP C504 CAP,CERAMIC,CHIP ECCH0000155 10 nF,16V,K,X7R,HD,1005,R/TP LGE Internal Use Only - 200 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 200 USF ,30 V,1 A,R/TP , ,; , , ,22A , , ,667mW ,[empty] D401 DIODE,SWITCHING EDSY0017601 ,[empty] ,[empty] ,1 Copyright © 2008 LG Electronics. Inc. All right reserved. - 201 - LGE Internal Use Only Only for training and service purposes...
  • Page 201 3.3 uH,M ,2.5*2.0*1.0 ,R/TP ,Chip power L104 INDUCTOR,CHIP ELCH0003826 3.3 nH,S ,1005 ,R/TP ,chip L106 INDUCTOR,CHIP ELCH0004721 2.2 nH,S ,1005 ,R/TP , LGE Internal Use Only - 202 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 202 4700 ohm,1/16W ,F ,1005 ,R/TP R116 THERMISTOR SETY0007101 NTC ,4700 ohm,SMD ,1005 J B:3500K R117 RES,CHIP ERHY0003501 220 ohm,1/16W ,J ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. - 203 - LGE Internal Use Only Only for training and service purposes...
  • Page 203 100 Kohm,1/16W ,F ,1005 ,R/TP PCB ASSY,MAIN,PAD R149 SAFP0000401 SHORT PCB ASSY,MAIN,PAD R152 SAFP0000401 SHORT PCB ASSY,MAIN,PAD R153 SAFP0000401 SHORT LGE Internal Use Only - 204 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 204 0.025 ohm,1/4W ,F ,2012 ,R/TP R411 RES,CHIP,MAKER ERHZ0000203 10 Kohm,1/16W ,F ,1005 ,R/TP R412 RES,CHIP,MAKER ERHZ0000203 10 Kohm,1/16W ,F ,1005 ,R/TP Copyright © 2008 LG Electronics. Inc. All right reserved. - 205 - LGE Internal Use Only Only for training and service purposes...
  • Page 205 100 Kohm,1/16W ,J ,1005 ,R/TP R561 RES,CHIP,MAKER ERHZ0000406 100 Kohm,1/16W ,J ,1005 ,R/TP S500 CONN,SOCKET ENSY0021001 8 PIN,ANGLE ,Reverse , mm, LGE Internal Use Only - 206 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 206 SEVY0003601 5.6 V, ,SMD ,100pF, 1005 26 MHz,10 PPM,14 pF,25 ohm,SMD ,32*25*0.6 ,EMP X100 X-TAL EXXY0026101 Reference X-Tal, CF360, Pb-Free ,; ,26MHz ,10PPM ,14 , , ,SMD ,R/TP 32.768 KHz,20 PPM,12.5 pF,70 Kohm,SMD ,3.2*1.5*0.9 X400 X-TAL EXXY0024301 ,-40'C ~ +85'C, C0 1.05pF, C1 fF ,; ,32.768 ,20PPM ,12.5...
  • Page 207 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C500 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP LGE Internal Use Only - 208 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 208 FILTER,EMI/POWER SFEY0011601 SMD ,SMD ,18 V,4ch. EMI_ESD Filter (50 Ohm,15pF) L200 INDUCTOR,CHIP ELCH0004713 6.8 nH,J ,1005 ,R/TP , Copyright © 2008 LG Electronics. Inc. All right reserved. - 209 - LGE Internal Use Only Only for training and service purposes...
  • Page 209 100 ohm,1/16W ,J ,1005 ,R/TP R529 RES,CHIP ERHY0003301 100 ohm,1/16W ,J ,1005 ,R/TP R533 RES,CHIP,MAKER ERHZ0000493 51 Kohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only - 210 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 210 14 V, ,SMD ,50pF, 1005 VA505 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005 VA506 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005 Copyright © 2008 LG Electronics. Inc. All right reserved. - 211 - LGE Internal Use Only Only for training and service purposes...
  • Page 211 19.2 MHz,1.5 PPM,10 pF,SMD ,33*25*0.96 ,EMP330 A- X200 TCXO EXST0002101 GPS TCXO, Pb-Free ,; ,19.2MHz ,1.5PPM ,2.8V ,33 ,25 ,0.96 , ,SMD ,R/TP LGE Internal Use Only - 212 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 212: Accessory

    100-240V ,5060 Hz,5.1 V,0.7 A,UL ,Micro USB B type, ADAPTOR,AC-DC SSAD0027606 ID(180Kohm, F) ,; , ,5.1 ,0.7 , , ,WALL 2P ,USB , Copyright © 2008 LG Electronics. Inc. All right reserved. - 213 - LGE Internal Use Only Only for training and service purposes...
  • Page 213 Note LGE Internal Use Only - 214 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

Table of Contents