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LG L704I Service Manual
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LG L704I Service Manual

LG L704I Service Manual

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Internal Use Only
Service Manual
L704i
Date: September, 2007 / Issue 1.0

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Summary of Contents for LG L704I

  • Page 1 Internal Use Only Service Manual L704i Date: September, 2007 / Issue 1.0...

  • Page 2: Table Of Contents

    4.7. Charger Troubleshooting ....100 11.3 Accessory ......... 202 4.8. USB Troubleshooting......103 4.9 SIM Detect Troubleshooting ....105 4.10 Keypad Backlight Troubleshooting ..111 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 3 - Only for training and service purposes...

  • Page 3: Only For Training And Service Purposes

    LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 4 - 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 © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 5 -...

  • 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 Copyright © 2007 LG Electronics. Inc. All right reserved. - 6 - Only for training and service purposes...

  • Page 6: Performance

    Push Type Side Key(+,-) Voice Key Push Type I/O Connector ARIB Type A (10 pin + RF coaxial) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 7 - Only for training and service purposes...

  • Page 7: Usable Environment

    * In case of DCS : [A] -> 1710, [B] -> 1785 * In case of PCS : [A] -> 1850, [B] -> 1910 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 8 - Only for training and service purposes...

  • Page 8: Only For Training And Service Purposes

    * In case of DCS : [A] -> 1710, [B] -> 1785 * In case of PCS : [A] -> 1850, [B] -> 1910 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 9 -...

  • 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 Copyright © 2007 LG Electronics. Inc. All right reserved. - 10 - Only for training and service purposes...

  • Page 10: Only For Training And Service Purposes

    Power setting in uplink compressed ±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 -49dBc@∆f=8.5~12.5MHz,1M Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 11 - 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 : Depend on Frequency Unwanted : Depend on Frequency LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 12 - Only for training and service purposes...

  • Page 12: Only For Training And Service Purposes

    -60 dBm @f=1920~1980MHz, 3.84MHz 2100 -60 dBm @f=2110~2170MHz, 3.84MHz WCDMA -60 dBm @f=824~849MHz, 3.84MHz -60 dBm @f=869~894MHz, 3.84MHz Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 13 - Only for training and service purposes...

  • Page 13: Current Consumption

    -105 <= RSSI < -100dBm (Ec/Io >= -17 dBm and RSCP >=-113 dBm) Network Notification RSSI < -105dBm LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 14 - Only for training and service purposes...

  • Page 14: Battery Bar

    Power OFF during call 80s after Low battery message Power OFF at stand-by 60s after Low battery message Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 15 - Only for training and service purposes...

  • Page 15: Sound Pressure Level

    • Full charging indication current (charging icon stop current) : 140 mA • Cut-off voltage : 3.3 V LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 16 - Only for training and service purposes...

  • Page 16: Technical Brief

    GMSK-modulated or 8-PSK-modulated signal to RF. Fig 1.1 Block diagram of RF part A generic, high-level functional block diagram of L704i is shown in Figure 1-1. One antenna collects base station forward link signals and radiates handset reverse link signals. The antenna connects with receive and transmit paths through a FEM(Front End Module) (plus two duplexers for UMTS high-band and low-band operations).

  • Page 17: Only For Training And Service Purposes

    2. The amplitude-modulated (AM) component is applied to the ramping control pin of Polar power amplifier from a DAC within the MSM L704i power supply voltages are managed and regulated by the PM6650 Power Management IC. This versatile device integrates all wireless handset power management, general housekeeping, and user interface support functions into a single mixed signal IC.

  • Page 18: Gsm Mode

    DCS and PCS). The front end module allows multiple operating bands and modes to share the same antenna. In L704i, a common antenna connects to one of seven paths: 1) UMTS-800 Rx/Tx, 2) UMTS-2100 Rx/Tx, 3) GSM-900 Rx, 4) DCS-1800 Rx, 5) PCS-1900 Rx , 6) GSM-900 Tx, 7) DCS-1800 PCS-1900 Tx.

  • Page 19: Only For Training And Service Purposes

    DC offset corrections. The filter outputs are buffered and passed on to the MSM6280 IC for further processing (an interface shared with the RFR6275 UMTS receiver outputs LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 20 - Only for training and service purposes...

  • Page 20: Only For Training And Service Purposes

    3. TECHNICAL BRIEF RTR6275 RX feature Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 21 - Only for training and service purposes...

  • Page 21: Only For Training And Service Purposes

    PA and appear in the GSM Rx band LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 22 - Only for training and service purposes...

  • Page 22: Umts Mode

    LNA designs. The LNA gains are stepped via API control. The IC operating mode and LNA bias currents are automatically adjusted via software to minimize DC power consumption. Figure 1.3.1-1 RFR6275 IC functional block diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 23 -...

  • Page 23: Only For Training And Service Purposes

    RF. This requires F to equal F , and the RTR6275 IC design achieves this without allowing F to equal F LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 24 - Only for training and service purposes...

  • Page 24: Only For Training And Service Purposes

    The RTR6275 IC is able to support UMTS 2100/1900 and UMTS 800 mode transmitting. This design guideline shows only UMTS 2100/1900 and UMTS 850 applications. WCDMA_2100_TX WCDMA_800_TX RTR6275 IC functional block diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 25 - Only for training and service purposes...

  • Page 25: Lo Phase-Locked Loop

    Ultimately, the loop forces the error to approach zero and the PLL is phase- and frequency-locked. RFR6275 PLLs functional block diagram LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 26 - Only for training and service purposes...

  • Page 26: Only For Training And Service Purposes

    VCO, feedback divider, and digital logic status. The off-chip loop filter capacitors allow minimal optimization of PLL performance characteristics (stability, transitory response, settling time, and phase noise) for different applications. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 27 -...

  • Page 27: Off-Chip Rf Components

    3. TECHNICAL BRIEF 3.5 Off-chip RF Components 3.5.1 Front end module (FL34 : LMSP54MA-543) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 28 - Only for training and service purposes...

  • Page 28: Only For Training And Service Purposes

    Important performance requirements include; ■ Insertion loss . this component is also in the receive and transmit paths ; In the L704i typical losses : UMTS2100_ Tx = 1.45 dB, UMTS2100_ Rx = 1.86 dB and UMTS800_ Tx =0.83 dB, UMTS800_ Rx = 1.23 dB...

  • Page 29: Only For Training And Service Purposes

    1.1 mm surface mount package incorporates matching networks optimized for output power, efficiency, and linearity in a 50 W system. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 30 - Only for training and service purposes...

  • Page 30: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 31 - Only for training and service purposes...

  • Page 31: Only For Training And Service Purposes

    The 3 mm x 3 mm x 1 mm surface mount package incorporates matching networks optimized for output power, efficiency and linearity in a 50 Ω system. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 32 - Only for training and service purposes...

  • Page 32: Only For Training And Service Purposes

    The GaAs die, the Silicon (Si) die, and the passive components are mounted on a multi-layer laminate substrate. The assembly is encapsulated with plastic overmold. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 33 -...

  • Page 33: Only For Training And Service Purposes

    Band Select (BS) signal. In Figure below, the BS pin selects the PA output (DCS/PCS_OUT or GSM_OUT) and the Analog Power Control (VAPC) controls the level of output power. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 34 - Only for training and service purposes...

  • Page 34: Only For Training And Service Purposes

    - all within a feedback control loop that minimizes handset frequency drift relative to the network. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only...

  • Page 35: Digital Baseband(Dbb/Msm6280)

    • Advanced 14 x 14 mm, 0.5 mm pitch, 409-pin lead-free CSP packaging technology • SD/SDIO hardware support LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 36 - Only for training and service purposes...

  • Page 36: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Figure. Simplified Block Diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 37 - Only for training and service purposes...

  • Page 37: Block Diagram(Msm6280)

    AUDIO AAC, Rx ADC EVRC, QCELP AMR, CMX Tx DAC USIM PM6650 Figure. Simplified Block Diagram of MSM6280 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 38 - Only for training and service purposes...

  • Page 38: Subsystem(Msm6280)

    ■ PS data rate - 384 kbps DL / 384 kbps UL ■ CS data rate - 64 kbps DL / 64 kbps UL ■ AMR (all rates) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 39 -...

  • Page 39: Only For Training And Service Purposes

    ■ Audio Codecs: AMR-NB, AAC, AAC Plus, Enhanced AAC Plus, Windows Audio v9, Real Audio 8 (G2) ■ Internal vocoder supporting AMR, FR, EFR, and HR LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 40 - Only for training and service purposes...

  • Page 40: Only For Training And Service Purposes

    ■ Integrated 4-bit secure digital (SD) controller for SD and Mini SD cards ■ Parallel LCD interface ■ General-purpose I/O pins ■ External keypad interface Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 41 - Only for training and service purposes...

  • Page 41: Only For Training And Service Purposes

    ■ Video Codecs supported: MPEG-4, H.263.H.264 ■ Audio Codecs supported: AMR-NB, AAC ■ Recording performance: 15 fps @ QVGA, 384 kbps LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 42 - Only for training and service purposes...

  • Page 42: Only For Training And Service Purposes

    ■ Scalable Vector Graphics (SVG- Tiny 1.1 + SVG Tiny 1.2) ■ MLZ decoder ■ Integrated PNG/SAF A.T. Table 1-1 Summary of MSM6280 device features Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 43 - Only for training and service purposes...

  • Page 43: Only For Training And Service Purposes

    ANSI/IEEE 1149.1A-1993 feature list. The JTAG interface can be used to test digital interconnects between devices within the mobile station during manufacture. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 44 - Only for training and service purposes...

  • Page 44: Only For Training And Service Purposes

    The MSM6280 device integrates a universal serial bus (USB) controller that supports both unidirectional and bidirectional transceiver interfaces. The USB controller acts as a USB peripheral communicating with the USB host. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 45 -...

  • Page 45: Power Block

    Interrupt Manager for time-critical information. Another dedicated IC Interface circuit monitors multiple trigger events and controls the power-on sequence. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 46 - Only for training and service purposes...

  • Page 46: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Figure. PM6650 Functional Block Diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 47 - Only for training and service purposes...

  • Page 47: Only For Training And Service Purposes

    [Call]3.64V 0.05V [Call]3.53V 0.05V [Call & Idle]3.30 0.05V ± ± [Idle]3.75V 0.05V [Idle]3.63V 0.05V L704i Battery Bar Display LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 48 - Only for training and service purposes...

  • Page 48: Only For Training And Service Purposes

    VDD to pin (VBAT). Trickle charging can be used for lithium-ion and nickelbased batteries, with its performance specified below (3.2V). The charging current is set to 80mA. Parameter Unit Trickle Current Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 49 - Only for training and service purposes...

  • Page 49: Only For Training And Service Purposes

    • Low battery message : 3.30 ± 0.05V • Cut-off : [Idle] 60s after Low battery message [Call] 80s after Low battery message LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 50 - Only for training and service purposes...

  • Page 50: External Memory Interface

    Toshiba 50 ns 50 ns SDRAM TYA000BC00DOGG Toshiba 15 ns 15 ns Table#1. External memory interface for L704i Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 51 - Only for training and service purposes...

  • Page 51: H/W Sub System

    Q_IP_CH0 RX_QP AB25 I_IM_CH0 RX_IM AC25 I_IP_CH0 RX_IP GP_PDM2_PA_RAN_GE1 GP_PDM1_PA_RAN_GE0 PA_R0 Figure. Schematic of RF Interface of MSM6280 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 52 - Only for training and service purposes...

  • Page 52: Only For Training And Service Purposes

    • GSM_PA_BAND : GSM/DCS-PCS Band Selection of Power Amp • GSM_PA_RAMP : Power Amp Gain Control of APC_IC • GSM_PA_EN : Power Amp Gain Control Enable of APC_IC Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 53 -...

  • Page 53: Only For Training And Service Purposes

    UART signals are connected to MSM GPIO through IO connector with 115200 bps speed. GPIO_Map Name Note GPIO_96 UART_RXM Data_Rx GPIO_95 UART_TXM Data_Tx Table. UART Interface LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 54 - Only for training and service purposes...

  • Page 54: Only For Training And Service Purposes

    USB_VBUS USB_DAT USB_DAT USB_D+ USB_D_P USB_SE0 USB_SE0 USB_D- USB_D_M GP1_DRV_N(MPP7) Figure. Schematic of USB block(MSM6280Side & PM6650 Side) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 55 - Only for training and service purposes...

  • Page 55: Only For Training And Service Purposes

    3. TECHNICAL BRIEF L704i has a protective circuit for non-booting from USB. When the phone is booted from USB_VBUS without Battery, booting current might be insufficient. Sometimes, this scheme can break the USB port on a computer. So, L704i does not support booting from USB.

  • Page 56: Only For Training And Service Purposes

    Battery voltage level detect HKADC2 HKADC3 HKADC4 PCB_Rev_ADC PCB Version Check HKADC5 VBATT_TEMP Battery Temperature Check Table. HKADC channel table Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 57 - Only for training and service purposes...

  • Page 57: Only For Training And Service Purposes

    SHARP STAR KEY_COL(2) KEY_COL(3) 100ohm 100ohm VA15 VA12 KEY_ROW(4) EVLC18S02015 EVLC18S02015 EVLC18S02015 KEY_COL(0) KEY_COL(1) KEY_COL(2) Figure. Keypad Circuit LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 58 - Only for training and service purposes...

  • Page 58: Only For Training And Service Purposes

    3. TECHNICAL BRIEF 3.11.5. Camera Interface L704i Installed VGA(0.3 mega Pixel) Camera and 2 Mega Pixel Auto Focus Camera. Below figure shows the camera board to board connector and camera I/F signal. CAM_VGA_PWDN VREG_VGA_CAM_2.8V HB-1M1005-600JT CAM_MCLK VREG_CAM_2.7V CAM_VGA_RESET CAM_PCLK CAM_I2C_SCL...

  • Page 59: Only For Training And Service Purposes

    Camera DVDD 2.7V VREG_VGA_CAM_2.8V Camera AVDD 2.8V Table. Interface between VGA Camera and Slide FPCB (in camera module) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 60 - Only for training and service purposes...

  • Page 60: Only For Training And Service Purposes

    VREG_CAM_2.7V AF_Driver IC_LVDD2_2.7V VREG_VGA_CAM_2.8V CAM_AVDD_2.8V Table1_1. Interface between 2 Mega Camera Module and Camera FPCB (in camera module) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 61 - Only for training and service purposes...

  • Page 61: Only For Training And Service Purposes

    CAM_IOVDD_2.8V VREG_CAM_1.8V CAM_DVDD_1.8V VREG_CAM_1.8V CAM_DVDD_1.8V Table1_2. Interface between 2 Mega Camera Module and Camera FPCB (in camera module) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 62 - Only for training and service purposes...

  • Page 62: Only For Training And Service Purposes

    IO_VDD VREG_MSMP_2.7V GND2 GND1 C410 0603 0.1u SLIDE_DET_N C489 EUSY0268101 0603 Figure. Schematic of Slide ON/OFF detection circuit Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 63 - Only for training and service purposes...

  • Page 63: Only For Training And Service Purposes

    EDLH0014201 LD902 CL-482S-TR1-CD-TS EDLH0014201 LD903 CL-482S-TR1-CD-TS EDLH0014201 LD904 CL-482S-TR1-CD-TS EDLH0014201 LD905 CL-482S-TR1-CD-TS EDLH0014201 Figure. Touch Pad lighting Circuit LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 64 - Only for training and service purposes...

  • Page 64: Only For Training And Service Purposes

    - Driving Method : A-Si TFT Active Matrix - 16 bit / 18 bit CPU interface Parallel Figure. LCD Module Block Diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 65 - Only for training and service purposes...

  • Page 65: Only For Training And Service Purposes

    EBI2_DATA(12) EBI2_DATA(13) EBI2_DATA(14) EBI2_DATA(15) LCD_RESET_N EBI2_WE_N VREG_LCD_2.8V LCD_CS_N LCD_ADS LCD_VSYNC MLED_CATHOD5 MLED_CATHOD4 MLED_CATHOD3 MLED_CATHOD2 MLED_CATHOD1 MLED_ANODE ENQY0012201 IMSA-9671S-35Y902 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 66 - Only for training and service purposes...

  • Page 66: Only For Training And Service Purposes

    The microphone interface consists of two differential microphone inputs, one differential auxiliary input and a two-stage audio amplifier. (+16.5dB) Figure. Audio Interface Detailed Diagram(MSM6280) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 67 - Only for training and service purposes...

  • Page 67: Only For Training And Service Purposes

    2.2K R1095 C760 MIC2P EAR_SENSE_N R1126 HP_R R1127 HP_L STEREO_DET_N VREG_MSMP_2.7V R1052 HOOK_SENSE_N Figure . Audio part schematics LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 68 - Only for training and service purposes...

  • Page 68: Only For Training And Service Purposes

    VREG_DAC_3.0V +VPWR C1648 C1663 0.1u SP0204LE5-PB SUMY0010602 MICBIAS 0.1u MIC1N MIC1P 0.1u MIC1 Figure . Audio part schematics Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 69 - Only for training and service purposes...
  • Page 69 8 ohm Speaker Receiver EMR0906SP 32 ohm receiver MIC1 SP0204LE5-PB4 -42 dB microphone Ear jack CN838 HSEJ-10S-05 Ear jack LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 70 - Only for training and service purposes...

  • Page 70: Main Features

    - 3gp/AAC decoder and play - MPEG4 encoder/decoder and play/save - JPEG en/decoder - Supports IrDA, USB - 1,000 mAh (Li-Ion) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 71 - Only for training and service purposes...

  • Page 71: Only For Training And Service Purposes

    Main board, Bottom Main board, TOP SUB board, Bottom SUB board, TOP Slide FPCB Slide PCB Touch FPCB LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 72 - Only for training and service purposes...

  • Page 72: Only For Training And Service Purposes

    W800 Duplexer RFR6275 SPDT W2100 Duplexer ANT. Switch W2100 PAM Front End Module W800 PAM TP10 GSM PAM Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 73 - Only for training and service purposes...

  • Page 73: Only For Training And Service Purposes

    Slide FPCB Connector TP11 I/O Connector SUB PCB Connector TP12 Crystal 19.2M DAC, SPK/HP AMP TP13 Backup Battery Audio Processor LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 74 - Only for training and service purposes...

  • Page 74: Only For Training And Service Purposes

    Description Reference Description Micro SD Slot Battery Connector SIM Socket MIC1 CN1,CN2 Main Connector LD1,LD2 3 Color LED Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 75 - Only for training and service purposes...

  • Page 75: Only For Training And Service Purposes

    Slide PCB Charger Pump Touch FPCB Connector IrDA Module VGA CAM Slide FPCB Connector MOT_P, MOT_N Motor PAD LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 76 - Only for training and service purposes...

  • Page 76: Trouble Shooting

    4. TROUBLE SHOOTING 4. TROUBLE SHOOTING 4.1 RF Component Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 77 - Only for training and service purposes...

  • Page 77: Only For Training And Service Purposes

    4. TROUBLE SHOOTING LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 78 - Only for training and service purposes...

  • Page 78: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 79 - Only for training and service purposes...

  • Page 79: Checking Vcxo Block

    C1415 RFR6275_TCXO TG-5010LH_19_2M TP1: R1282 0.01u EXSK0007801 TP2: C1458 VREG_TCXO_2.85V C1458 C1387 TP3: C1388 0.1u 1000p TP4: C1423 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 80 - Only for training and service purposes...

  • Page 80: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Check C664 of PMIC (U513) Check R1121 of MSM (U507) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 81 - Only for training and service purposes...

  • Page 81: Checking Ant. Sw Module Block

    4.3. Checking Ant. SW Module Block TP3 TP4 Chip - 0603 R1302 ANT_SEL2 R1303 ANT_SEL1 R1304 ANT_SEL0 C1375 C1374 C1373 VREG_RF_SMPS 0603 C1376 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 82 - Only for training and service purposes...

  • Page 82: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 83 - Only for training and service purposes...

  • Page 83: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Logic Table of the Front End Module Checking Switch Block power source LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 84 - Only for training and service purposes...

  • Page 84: Checking Umts Block

    PWR_DET RFOUT GND1 GND3 VMODE GND2 VREF 100ohm 0603 C2001 C1377 WCDMA_2100 2.2nH 0.5p TP2: L64 C2002 5.6nH Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 85 - Only for training and service purposes...

  • Page 85: Only For Training And Service Purposes

    4. TROUBLE SHOOTING For testing, Max power of UMTS2100MHz is needed. Measured value and spectrum of TP1 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 86 - Only for training and service purposes...

  • Page 86: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Measured value and spectrum of TP2 Measured value and spectrum of TP3 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 87 - Only for training and service purposes...

  • Page 87: Only For Training And Service Purposes

    GND2 RFIN 8.2nH L2003 C1473 BGND VBATT +VPWR C1645 C1628 TP1: C1646 TP4: C1667 C1419 WCDMA_800 TP2: C1419 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 88 - Only for training and service purposes...

  • Page 88: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Measured value and spectrum of TP1 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 89 - Only for training and service purposes...

  • Page 89: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Measured value and spectrum of TP2 Measured value and spectrum of TP3 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 90 - Only for training and service purposes...

  • Page 90: Only For Training And Service Purposes

    120p TP3: C1702 AWT6277R U578 GND5 VCC2 VCC1 L2002 GND4 RFIN 2.2nH RFOUT GND1 GND3 VMODE GND2 VREF Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 91 - Only for training and service purposes...

  • Page 91: Only For Training And Service Purposes

    WCDMA_800 SDDY0004502 TP3*:C1465 FL18 EFSD835MF2S2 C1465 FL33 EFCH881MTDAA TP4*:L11 C1456 SFSY0030101 GND1 GND6 6.8nH GND2 GND5 GND3 GND4 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 92 - Only for training and service purposes...

  • Page 92: Only For Training And Service Purposes

    4. TROUBLE SHOOTING TP* :UMTS 800 Rx PATH TP: UMTS 2100 Rx PATH Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 93 - Only for training and service purposes...

  • Page 93: Checking Gsm Block

    DCS RX 15nH 4.7nH GSM Tx block Rev 1.0 3.9nH C1440 PCS RX 0.5p 3.9nH GSM Rx block LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 94 - Only for training and service purposes...

  • Page 94: Only For Training And Service Purposes

    0603 C1437 DCS_PCS_OUT DCS_PCS_IN EGSM_OUT EGSM_IN U569 R1280 RSVD_GND SKY77318 ENABLE GSM_PA_EN 0603 SMPY0014001 P_GND GSM_PA_BAND R1281 0603 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 95 - Only for training and service purposes...

  • Page 95: Only For Training And Service Purposes

    PCS RX 0.5p 3.9nH TP1: L16,L17 (EGSM Rx block) TP2: L12,L13 (PCS Rx block) TP3: L27,L28 (DCS Rx block) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 96 - Only for training and service purposes...

  • Page 96: Power On Troubleshooting

    VREG_MSMA_2.6V power up? Is clock ok? R1125 : 19.2M Check the TXCO & Crystal X2: 32.768Khz Change the Main board Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 97 - Only for training and service purposes...

  • Page 97: Only For Training And Service Purposes

    X2 : 32.768Khz VREG_MSME R1125 : 19.2MHz VREG_MSMC VREG_TCXO Main board, Bottom R1125 : 19.2MHz X2 : 32.768Khz LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 98 - Only for training and service purposes...

  • Page 98: Only For Training And Service Purposes

    MSM_USIM_DATA VREG_USIM_2.85V USIM_P_DATA 1005 1005 C709 C704 2.2u 2.2u 2520 2016 4.7uH 4.7uH ADC_BYP VCHG ISNS_P CHG_CTL_N ISNS_M Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 99 - Only for training and service purposes...

  • Page 99: Charger Troubleshooting

    - Check the charger connector - Charging current path - Check the charging current Path - Battery - Check the battery LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 100 - Only for training and service purposes...

  • Page 100: Only For Training And Service Purposes

    EQBP0009901 CHG_CNT_N ICHARGE (1%) ICHARGEOUT +VPWR C1661 C1618 FDJ129P EQFP0005101 2012 VBATT BATT_FET_N Figure . Charging part schematic Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 101 - Only for training and service purposes...

  • Page 101: Only For Training And Service Purposes

    Change TA Is the TA voltage 5.4V? Is it charging properly After turning on Q1, Q8? Change the board LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 102 - Only for training and service purposes...

  • Page 102: Usb Troubleshooting

    4. TROUBLE SHOOTING 4.8. USB Troubleshooting USB Initial sequence of L704i is : USB connected to L704i power on → USB_VBUS(Q7 PIN4) go to 5V → USB_D+ go to 3.3V → USB_VP and USB_VN is triggered → USB work. Start...

  • Page 103: Only For Training And Service Purposes

    4. TROUBLE SHOOTING USB_VBUS USB_VBUS_IN USB_D+ USB_D- PS_HOLD EQBA0000602 KRX102E PLR0504F LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 104 - Only for training and service purposes...

  • Page 104: Sim Detect Troubleshooting

    Work well? VREG_USIM_2.85V is 2.85V? Check J1 USIM_P_CLK is run? Change SIM card Work well? Change the Main board Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 105 - Only for training and service purposes...

  • Page 105: Only For Training And Service Purposes

    < SIM - 1.8T > < SIM - 1.8T > 4.7K VREG_USIM_2.85V USIM_P_RST_N USIM_P_DATA USIM_P_CLK GND4 GND1 GND3 GND2 USIM_P_CLK VREG_USIM_2.85V LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 106 - Only for training and service purposes...

  • Page 106: Only For Training And Service Purposes

    VREG_CAM_2.7V is 2.7V(FB1) Check the CAM_MCLK Change the Main board Change the camera Camera is OK Change the Main board Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 107 - Only for training and service purposes...

  • Page 107: Only For Training And Service Purposes

    CAM_VGA_RESET CAM_PCLK CAM_I2C_SCL CAM_DATA(0) CAM_I2C_SDA CAM_DATA(1) CAM_DATA(2) CAM_HSYNC CAM_DATA(3) CAM_VSYNC CAM_DATA(4) CAM_DATA(7) CAM_DATA(5) CAM_DATA(6) ENBY0019501 AXK720147G PRSB6.8C CAM_MCLK LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 108 - Only for training and service purposes...

  • Page 108: Only For Training And Service Purposes

    VREG_2M_CAM_2.8V is 2.8V(C1566) Check the CAM_MCLK Change the Main board Change the camera Camera is OK Change the Main board Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 109 - Only for training and service purposes...

  • Page 109: Only For Training And Service Purposes

    CAM_I2C_SCL CAM_DATA(3) CAM_DATA(2) CAM_DATA(1) CAM_DATA(0) CAM_2M_PWDN VREG_CAM_2.7V CAM_MAINCLK HB-1M1005-600JT VREG_2M_CAM_2.8V CAM_VSYNC CAM_HSYNC SPK_P CAM_INDI_LED SPK_N +VPWR ENBY0028501 AXT340164 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 110 - Only for training and service purposes...

  • Page 110: Keypad Backlight Troubleshooting

    KEYPAD LED Lighting (on) Change the Main board KEYPAD LIGHTING +VPWR CL-435F-WQ-SD-TS CL-435F-WQ-SD-TS EDLH0014302 SUB_LED_DRV_N KEYPAD LED position Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 111 - Only for training and service purposes...

  • Page 111: Slide Close / Open Troubleshooting

    TK60012BM5 U504 R402 IO_VDD VREG_MSMP_2.7V GND2 GND1 C410 0603 0.1u SLIDE_DET_N C489 EUSY0268101 Magnet position 0603 U504 U504 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 112 - Only for training and service purposes...

  • Page 112: Main Lcd Troubleshooting

    The LCD connector(40pin Con) Disconnect and reconnect The LCD connector (LCD zip Con.) LCD display OK? Change the Main board Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 113 - Only for training and service purposes...

  • Page 113: Receiver Path

    PIN3,PIN4 of Slide FPCB CON4 The sine wave appears at Slide FPCB re-connecting. PIN3,PIN4 of CN833? Change the Main board LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 114 - Only for training and service purposes...
  • Page 114 4. TROUBLE SHOOTING Receiver CON833 CON4 1KHz Sine wave Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 115 - Only for training and service purposes...

  • Page 115: Headset Path

    Can you hear the tone? Sine wave appears Change the headset at C1660/C1666 ? Re-solder C1660/C1666 Change the Main board LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 116 - Only for training and service purposes...
  • Page 116 4. TROUBLE SHOOTING C1660 C1666 1KHz Sine wave Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 117 - Only for training and service purposes...

  • Page 117: Speaker Phone Path

    Change the Main board D18 and D19? Re-connect speaker Connecting speaker OK? Can you hear the tone? Change the speaker LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 118 - Only for training and service purposes...
  • Page 118 4. TROUBLE SHOOTING Connector for Speaker & CAMERA 1KHz Sine wave Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 119 - Only for training and service purposes...

  • Page 119: Main Microphone

    Change the MIC C27,C28 ? Change the Main board Work well? SP0204LE5-PB SUMY0010602 MICBIAS 0.1u MIC1N MIC1P 0.1u MIC1 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 120 - Only for training and service purposes...
  • Page 120 4. TROUBLE SHOOTING MIC1 C24 OR C29 C27 OR C28 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 121 - Only for training and service purposes...

  • Page 121: Headset Microphone

    Change the headset or Sine wave appears at Main board and retry. C760 ? Change the Main PCB LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 122 - Only for training and service purposes...
  • Page 122 <Ear Jack Connector> VREG_MSMP_2.7V HSEJ-10S-05 ENJE0004401 CN838 2.2K R1095 C760 MIC2P EAR_SENSE_N R1126 HP_R R1127 HP_L STEREO_DET_N VREG_MSMP_2.7V R1052 HOOK_SENSE_N Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 123 - Only for training and service purposes...

  • Page 123: Vibrator

    Change vibrator <Main Board> < MOTOR > U573 SUY98005LT1G EDSY0011901 RB521S-30 AP_MOTOR_EN MOTOR_N VOUT C1642 100p MOT_N MOT_P MOTOR_N LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 124 - Only for training and service purposes...

  • Page 124: Download

    LGMDP supports Windows 2000/XP where the LG USB modem driver is installed. Additionally, LGMDP allows multi downloading up to 8 handsets at the same time.
  • Page 125 (The port number(COM9) and model name shall be different from that of the port number in the snapshot.) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 126 - Only for training and service purposes...
  • Page 126 The status Ready is displayed when the application is ready for downloading. While the images are transmitted from PC to the handset, a progressive bar (Red box) indicating the degree of transmission of data is displayed. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 127 -...
  • Page 127 The following slide describes how to use or set options in detail. (The model name shall be different from that of the model name in the snapshot.) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 128 - Only for training and service purposes...
  • Page 128 7) Override Partition Table: If memory map was changed, you must select this option. (Defaultly selected option) 8) Start: Starting downloading the selected individual image. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 129 -...
  • Page 129 ★ if you select the image folder, the program will automatically load images accordingly. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 130 - Only for training and service purposes...
  • Page 130 5. DOWNLOAD ★ if you select the image folder, the program will automatically load images accordingly. Automatically load images Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 131 - Only for training and service purposes...
  • Page 131 Normally LGMDP will downloaded all files that need downloading. To download selected image file only simply select the image file that user want to process downloading. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 132 - Only for training and service purposes...
  • Page 132 The following flow chart is whole process for downloading images to the handset. You will see snapshots for each step in the succeeding slides. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 133 -...
  • Page 133 • Erasing the existing directories and files before the Module image is downloaded. • Downloading the AMSS modem image LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 134 - Only for training and service purposes...
  • Page 134 • Rebooting the handset and re-establishing the connection • Erasing the existing directories and files before downloading the selected Media image Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 135 - Only for training and service purposes...
  • Page 135 • Downloading Media image in progress • Downloading Module image in progress • Downloading process has completed successfully LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 136 - Only for training and service purposes...
  • Page 136 USB connectivity and check where the COM has been installed . Select Device Manager from the Tools of the file menu. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 137 -...
  • Page 137 If they are exist, then appropriate check boxes are checked accordingly. Select directory to store log files by clicking on the ... button. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 138 - Only for training and service purposes...

  • Page 138: Troubleshooting Download Errors

    5. DOWNLOAD 5.3 Troubleshooting Download Errors 1) NV Restore error When you meet the “NV Restore error”, Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 139 - Only for training and service purposes...
  • Page 139 5. DOWNLOAD → Connect to the phone. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 140 - Only for training and service purposes...
  • Page 140 5. DOWNLOAD → Click on ‘Cancel’. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 141 - Only for training and service purposes...
  • Page 141 ★ The files are saved every NV Backup. The name is based on the time when NV Backup is done.) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 142 - Only for training and service purposes...

  • Page 142: Caution

    1) Not recommended that multi-downloading using the USB hub. 2) Recommendsed that the Module and Media Image have to be downloaded at the same time. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 143 -...
  • Page 143 → If you want image download and NV backup file restore at once, use the NV Default function. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 144 - Only for training and service purposes...
  • Page 144 5) Recommended that the Module and Media Image have to be downloaded at the same time. 6) Erase EFS option will erase everything (media, module, nv items, and user data) in the EFS area. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only...

  • Page 145: Block Diagram

    6. BLOCK DIAGRAM 6. BLOCK DIAGRAM 6.1 GSM & UMTS RF Block Fig 2.1-1.UMTS-800,2100+GSM-900/DCS-1800/PCS-1900 RF Functional Block Diagram LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 146 - Only for training and service purposes...
  • Page 146 6. BLOCK DIAGRAM Table 6.1-1. RF Block Component Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 147 - Only for training and service purposes...

  • Page 147: Interface Diagram

    6. BLOCK DIAGRAM 6.2 Interface Diagram L704i Interface Diagram LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 148 - Only for training and service purposes...
  • Page 148 GSM_PA_EN : Power Amp Gain Control Enable GSM_PA_RAMP : Power Amp Gain Control UMTS PA_CTL signal PA_ON1,2 : UMTS Tx Power Amp Enable Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 149 - Only for training and service purposes...

  • Page 149: Top Side

    6. BLOCK DIAGRAM *Top Side LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 150 - Only for training and service purposes...

  • Page 150: Bottom Side

    6. BLOCK DIAGRAM *Bottom Side Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 151 - Only for training and service purposes...
  • Page 151 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 152 - Only for training and service purposes...

  • Page 152: Circuit Diagram

    100p 100p R1287 VDDA12 VREG_MSMP_2.7V VDDM1 0603 VDDA13 C1692 C1691 Chip - 0603 VDDM2 C1426 VDDA14 100p EUSY0300401 - 153 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 153 MDDIC_STBP EBI2_ADDR(1) A2_1 MDDIC_STBN C548 Place near 0.1u MSM pin AD26 2.2K R1091 VREG_CAM_2.7V 2.2K R1092 LG(42)-A-5505-10:01 LG(42)-A-5505-10:01 - 154 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 154 C1647 C1664 HP_R VREG_MSMP_2.7V R1052 0.1u HOOK_SENSE_N ECTH0005501 VREG_DAC_2.7V VREG_DAC_1.8V R1406 VREG_DAC_3.0V +VPWR C1648 C1663 0.1u LG(42)-A-5505-10:01 LG(42)-A-5505-10:01 - 155 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 155 STBY BGND +VPWR VOUT VREG_CAM_2.7V C1707 U580 BH18PB1WHFV CAM_CVDD_1.8V_EN STBY BGND R1449 +VPWR VOUT VREG_CAM_1.8V EUSY0297101 C1709 LG(42)-A-5505-10:01 - 156 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 156 INOUT_B1 INOUT_A1 KEY_COL(1) ICVE10184E070R100FR FL29 KEY_COL(0) LCD_BL_CTRL IrDA_EN_N OJ503 OJ504 U573 SUY98005LT1G AP_MOTOR_EN MOTOR_N VOUT C1642 100p LG(42)-A-5505-10:01 - 157 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 157 KEY_ROW(3) ZERO SHARP STAR KEY_COL(2) KEY_COL(3) 100ohm 100ohm VA15 KEY_ROW(4) VA12 EVLC18S02015 EVLC18S02015 EVLC18S02015 KEY_COL(0) KEY_COL(1) KEY_COL(2) LG(42)-A-5505-10:01 - 158 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 158 CAM_2M_PWDN VREG_CAM_2.7V CAM_MCLK VREG_2M_CAM_2.8V CAM_VSYNC CAM_HSYNC ENBY0015601 VISION MARK AXK7L34227G FPCB to MEGA CAMERA MODULE - FPCB Side - 159 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 159 TOUCH_ATTN_N ATTN SENSE7 GPIO4 AVDD SENSE2 SENSE0 SENSE6 SO1G20010 GPIO3 SEND DOWN GPIO2 EUSY0316201 GPIO1 GPIO0 SENSE4 LGIC(42)-A-5505-10:01 - 160 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 160 ENQY0012201 IMSA-9671S-35Y902 < TOUCH > VREG_TOUCH_OUT VREG_TOUCH SFBH0000909 HB-1M1005-600JT VREG_TOUCH_OUT +VPWR KEY_LED_DRV_N TOUCH_ATTN_N TOUCH_I2C_SCL VREG_TOUCH TOUCH_I2C_SDA ENBY0018601 AXK7L10227G - 161 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 161 STBY BGND BGND +VPWR VOUT VREG_VGA_CAM_2.8V +VPWR VOUT VREG_TOUCH_OUT EUSY0290701 BH28PB1WHFV LCD_2.8V_EN STBY BGND +VPWR VOUT VREG_LCD_2.8V LGIC(42)-A-5505-10:01 - 162 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 162: Bgm Pin Map

    8. BGM Pin Map 1. MSM6280 (409 CSP land pattern drawing) NOT IN USE 2. Memory (Bottom view) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 163 - Only for training and service purposes...
  • Page 163 8. BGM Pin Map 3. DAC NOT IN USE <39 balls WLCSP-Bottom View> 4. Audio Process LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 164 - Only for training and service purposes...

  • Page 164: Pcb Layout

    9. PCB LAYOUT SO1G20010 Touch Sensing - 165 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 165 9. PCB LAYOUT IMSA-9671S-35Y902 LCD Connector (34pin) AXK7L10227G Touch FPCB Connector (10pin) AXK7L40227G LCD & Touch Connector (40Pin) - 166 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 166 9. PCB LAYOUT RPM840-H11 IrDA , IrRC Module AXK720147G VGA Camera Connector (24pin) - 167 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 167 Can't Rx HP AMP CN833 AXK880145WG Slide Interface Connector U545 (LCD,VGA CAM, Touch) AP131 Audio Processor with SD Interface - 168 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 168 ARIB RF Can't T/Rx U513 PM6650-2M Power Management CN804 RA1R011H11 I/O Connector CN837 AXT340164 2M Camera Interface Connector (40pin) - 169 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 169 - Battery Power, SD Interface 49225-0821 USIM Connector Micro SD Connector (8pin) (6pin) HSBC-3P-21 MIC1 Battery Connector SP0204LE5-PB (3Pin) - 170 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 170 9. PCB LAYOUT AXK7L34227G 2M Camera Interface Connector (34pin) AXT440124 (40pin) 2M Camera , Speaker Interface Connector (40pin) LGMC - 171 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 171 - 172 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 172: Calibration & Rf Auto Test Program (Hot Kimchi)

    L704i AutoSetup_100.xml Cal_Setup_Test.xml LG_RfTest_E5515C_107.dll LG_NsTest_E5515C_239.dll Ezlooks.xml QMSL_MSVC6R.dll LG_RfCal_Q3G6280N_Polar_003.dll NstProcedure_U310_101.xml LG_UI_Qu6275_004.dll script_100.xml : Directory Multi HK.reg Spec_KU800_110.xml : File Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 173 - Only for training and service purposes...

  • Page 173: How To Use Hot Kimchi

    3. Select “LOGIC MODE” that you want - Logic Mode -> 1: Calibration Only 2: Auto Test Only 3: Calibration + Auto LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 174 - Only for training and service purposes...
  • Page 174 ➄ Click "Start" ➃ Select "L704i" * Procedure 4. Select the model name “L704i” 5. Click “Start” button Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 175 - Only for training and service purposes...
  • Page 175 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 176 - Only for training and service purposes...

  • Page 176: Exploded View & Replacement Part List

    11. EXPLODED VIEW & REPLACEMENT PART LIST 11.1 EXPLODED VIEW - 177 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 177 33 34 24 25 26 60 6263 86 48 44 49 46 - 178 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 178: Replacement Parts

    COMPLEX, (empty), , , , , Without Color MTAB01 TAPE,PROTECTION MTAB0159601 COMPLEX, (empty), , , , , Without Color Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 179 - Only for training and service purposes...
  • Page 179 MPBF0018401 COMPLEX, (empty), , , , , Black MPBT00 PAD,CAMERA MPBT0035201 COMPLEX, (empty), , , , , Black LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 180 - Only for training and service purposes...
  • Page 180 COMPLEX, (empty), , , , , Black MLAA00 LABEL,APPROVAL MLAA0042202 COMPLEX, (empty), , , , , Without Color Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 181 - Only for training and service purposes...

  • Page 181: Main Component

    100 Kohm,1/16W ,J ,1005 ,R/TP RES,CHIP,MAKER ERHZ0000402 10 ohm,1/16W ,J ,1005 ,R/TP RES,CHIP ERHY0000179 39 ohm,1/16W ,F ,1005 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 182 - Only for training and service purposes...
  • Page 182 22 ohm,1/16W ,J ,1005 ,R/TP Capacitive sensing IC 32QFN ,32 PIN,R/TP ,Cap touch EUSY0316201 controller IC SPCY00 PCB,FLEXIBLE SPCY0093601 POLYI ,0.3 mm,Multi- 4 ,L704i TOUCH ,; , , , , , , , , , SAEY00 PCB ASSY,KEYPAD SAEY0052501 SAEE00 PCB ASSY,KEYPAD,SMT SAEE0020301 Copyright ©...
  • Page 183 FR-4 ,0.5 mm,MULTI-4 ,L704i NAVIKEY PCB SAJY00 PCB ASSY,SUB SAJY0020701 SAJB00 PCB ASSY,SUB,INSERT SAJB0013301 ADCA00 DOME ASSY,METAL ADCA0060001 Without Color LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 184 - Only for training and service purposes...
  • Page 184 ,125mW ,[empty] ,[empty] ,6P R/G/B ,ETC ,R/TP ,4.6*1.35*0.8t ,; ,[empty] , ,20mA , , DIODE,LED,CHIP EDLH0014101 ,125mW ,[empty] ,[empty] ,6P Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 185 - Only for training and service purposes...
  • Page 185 SEVY0000702 14 V,10% ,SMD , VA15 VARISTOR SEVY0003801 18 V, ,SMD , VARISTOR SEVY0003801 18 V, ,SMD , LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 186 - Only for training and service purposes...
  • Page 186 SEVY0001001 14 V, ,SMD ,50pF, 1005 SPCY00 PCB,FLEXIBLE SPCY0093701 POLYI ,0.4 mm,MULTI-4 ,L704i CAMERA ,; , , , , , , , , , ASSY ,8 ohm,90 dB,16 mm,3.4T, Wire15mm ,; , , , , , , SUSY00 SPEAKER SUSY0025601...
  • Page 187 33 uF,10V ,M ,L_ESR ,2012 ,R/TP ,; , ,[empty] ,[empty] , C1666 CAP,TANTAL,CHIP ECTH0005501 ,-55TO+125C , ,[empty] ,[empty] ,[empty] ,[empty] LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 188 - Only for training and service purposes...
  • Page 188 ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP C709 CAP,CERAMIC,CHIP ECCH0000198 2.2 uF,6.3V ,M ,X5R ,TC ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 189 - Only for training and service purposes...
  • Page 189 TESV ,200 mW,R/TP ,EPITAXIAL PLANAR NPN/PNP TR,BJT,ARRAY EQBA0000602 TRANSISTOR TR,FET,P-CHANNEL EQFP0005101 SC75-6 ,1.6 W,-20 V,-4.2 A,R/TP ,P- CHANNEL FET LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 190 - Only for training and service purposes...
  • Page 190 ,SMD ,0.4 dB, U513 EUSY0306302 BCCS ,84 PIN,R/TP ,7x7, MSMC(1.2V), pbfree U552 EUSY0207001 MINI MOLD ,6 PIN,R/TP ,SPDT SWITCH Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 191 - Only for training and service purposes...
  • Page 191 33 pF,50V ,J ,X7R ,TC ,0603 ,R/TP C1377 CAP,CERAMIC,CHIP ECCH0000120 39 pF,50V,J,NP0,TC,1005,R/TP C1380 CAP,CHIP,MAKER ECZH0000844 68 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 192 - Only for training and service purposes...
  • Page 192 ECCH0009104 33 pF,50V ,J ,X7R ,TC ,0603 ,R/TP C1574 CAP,CERAMIC,CHIP ECCH0009104 33 pF,50V ,J ,X7R ,TC ,0603 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 193 - Only for training and service purposes...
  • Page 193 ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP C1654 CAP,CERAMIC,CHIP ECCH0009101 0.1 uF,6.3V ,K ,X5R ,TC ,0603 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 194 - Only for training and service purposes...
  • Page 194 5.6 pF,50V ,C ,NP0 ,TC ,1005 ,R/TP C2005 CAP,CERAMIC,CHIP ECCH0000108 7 pF,50V,D,NP0,TC,1005,R/TP C2006 CAP,CERAMIC,CHIP ECCH0009104 33 pF,50V ,J ,X7R ,TC ,0603 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 195 - Only for training and service purposes...
  • Page 195 ECZH0025920 1000 pF,16V ,K ,X7R ,HD ,0603 ,R/TP C605 CAP,CHIP,MAKER ECZH0025920 1000 pF,16V ,K ,X7R ,HD ,0603 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 196 - Only for training and service purposes...
  • Page 196 SMD ,SMD ,18 V,4ch. EMI_ESD Filter (10 Ohm,7.5pF) FL31 FILTER,SAW SFSY0030301 836.5 MHz,1.4*1.1*0.6 ,SMD ,Pb-free_DCN_Tx_SAW 881.5 MHz,1.4*1.1*0.6 ,SMD ,Pb- FL33 FILTER,SAW SFSY0030101 free_WCDMA850_Rx_SAW Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 197 - Only for training and service purposes...
  • Page 197 EQBA0000602 TRANSISTOR R1047 RES,CHIP ERHY0009547 200 Kohm,1/20W(0.05W) ,F ,0603 ,R/TP R1048 RES,CHIP ERHY0009558 68 Kohm,1/20W(0.05W) ,F ,0603 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 198 - Only for training and service purposes...
  • Page 198 10 ohm,1/16W ,F ,1005 ,R/TP R1382 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP R1383 RES,CHIP ERHY0009506 100 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 199 - Only for training and service purposes...
  • Page 199 EUSY0227203 SOT23 ,5 PIN,R/TP ,DC/DC, 600mA, 1.2V, SB120 dBm,43 %, A,-40 dBc,26 dB,4x4x1.1 ,SMD ,2.1GHz, U578 SMPY0013301 HSDPA LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 200 - Only for training and service purposes...
  • Page 200 48 MHz,50 PPM,12 pF,40 ohm,SMD ,3.2*2.5*0.7 , VMN2 ,5 V,10 W,R/TP ,1.0*0.6*0.4 ,; , ,7.82V , , ,100mW DIODE,TVS EDTY0009401 ,[empty] ,[empty] ,2P ,1 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 201 - Only for training and service purposes...

  • Page 201: Accessory

    COMPLEX, (empty), , , , , Black MCCG00 CAP,MULTIMEDIA CARD MCCG0007101 COMPLEX, (empty), , , , , Black LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 202 - Only for training and service purposes...
  • Page 202 Note Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 203 Note LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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