LG L705i Service Manual
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LG L705i Service Manual

LG L705i Service Manual

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Internal Use Only
Service Manual
L705i
Date: October, 2008 / Issue 1.0

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Summary of Contents for LG L705i

  • Page 1 Internal Use Only Service Manual L705i Date: October, 2008 / Issue 1.0...

  • Page 2: Table Of Contents

    4.8. USB Troubleshooting......101 11.3 Accessory ......... 195 4.9 SIM Detect Troubleshooting ....103 4.10 1.3 Mega Camera Troubleshooting ...105 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

    USB 1.1, IrDA Volume Key Push Type(+, -) External Memory I/O Connect 10 Pin (ARIB Connector Type A) 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

    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

    -57dBm@f=9KHz ~ 1GHz, 100K BW -47dBm@f=1 ~ 12.5GHz, 1M BW Spurious Emissions -60dBm@f=1920MHz ~ 1980MHz, 3.84M BW -60dBm@f=2110MHz ~ 2170MHz, 3.84M BW Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 13 - Only for training and service purposes...

  • Page 13: Current Consumption

    RSCP < -113 dBm BAR 0 -110 <= RSSI < -105 dBm or Ec/Io < -17 dBm Network Notification Network Notification 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: Stand-by: 3.30 V, Talk: 3.28 V low temperature (under -10deg.): 3.00V 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 3.1 Block diagram of RF part A generic, high-level functional block diagram of L705i 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 lowband 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 L705i 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 IC and higher-level handset functions.

  • Page 18: Gsm Mode

    GSM900, DCS and PCS). The antenna switch module allows multiple operating bands and modes to share the same antenna. In L705i, a common antenna connects to one of eight paths: 1) UMTS-800 Rx/Tx, 2) UMTS-1900 Rx/Tx, 3) GSM-850 Rx, 4) GSM-900 Rx, 5) GSM-850 GSM-900 Tx, (Low Band Tx’s share the same path) 6) DCS- 1800 Rx, and 7) DCS-1800,PCS-1900...

  • 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 Fig 3.2.1 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

    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. WCDMA_800_RX Figure 3.3.1 RFR6275 IC functional block diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 23 - Only for training and service purposes...

  • Page 23: Only For Training And Service Purposes

    QUALCOMM MSM device provides status and control signaling, employing power reduction features (such as selective circuit power-down, gain control, and bias control) to extend handset standby time. 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 800 applications. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 25 -...

  • Page 25: Only For Training And Service Purposes

    3. TECHNICAL BRIEF WCDMA_2100_TX WCDMA_800_TX Figure 3.3.3 RTR6275 IC functional block diagram LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 26 - Only for training and service purposes...

  • Page 26: Lo Phase-Locked Loop

    Ultimately, the loop forces the error to approach zero and the PLL is phase- and frequency-locked. Figure 3.4.1 / Figure 3.4.2 RFR6275 PLL’s functional block diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 27 -...

  • Page 27: 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. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 28 - Only for training and service purposes...

  • Page 28: Off-Chip Rf Components

    WB850 WB1900 WB2100 GSM850 RX EGSM RX PCN RX PCS RX All Off Table 3.5.1 FEM control table Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 29 - Only for training and service purposes...

  • Page 29: Only For Training And Service Purposes

    Important performance requirements include; ■ Insertion loss: This component is also in the receive and transmit paths; In the L705i typical losses: UMTS2100_ Tx = 1.6dB, UMTS2100_ Rx = 2.1dB and UMTS800_ Tx =1.0dB, UMTS800_ Rx = 1.5dB ■...

  • Page 30: Only For Training And Service Purposes

    50Ω system. Figure 3.5.1 AWT6277R Functional block Figure 3.5.2 AWT6277R Pin description diagram 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

    3. TECHNICAL BRIEF Table 3.5.2 AWT6277R Electrical specification 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

    50Ω system. Figure 3.5.1 AWT6277R Functional block Figure 3.5.2 AWT6277R Pin description diagram Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 33 - Only for training and service purposes...

  • Page 33: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Table 3.5.3 AWT6370R Electrical specification 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

    ) function, which is insensitive to variations in temperature, power supply, process, and input power. The ENABLE input allows initial turn-on of PAM circuitry to minimize battery drain. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 35 -...

  • Page 35: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Figure 3.5.5 SKY77318 functional block diagram Table 3.5.4 SKY77318 Electrical specification 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

    - 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 37: 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. - 38 - Only for training and service purposes...

  • Page 38: 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 - 39 - Only for training and service purposes...

  • Page 39: 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. - 40 - Only for training and service purposes...

  • Page 40: 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 - 41 -...

  • Page 41: 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. - 42 - Only for training and service purposes...

  • Page 42: 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 - 43 - Only for training and service purposes...

  • Page 43: 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. - 44 - Only for training and service purposes...

  • Page 44: 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 - 45 - Only for training and service purposes...

  • Page 45: Only For Training And Service Purposes

    Through a generic single serial bus interface (SSBI) the ARM926EJ-S configures and controls the functionality of the RFR6275, RTR6275, and PM6650 devices. 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

    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 - 47 -...

  • Page 47: 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. - 48 - Only for training and service purposes...

  • Page 48: 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 - 49 - Only for training and service purposes...

  • Page 49: Only For Training And Service Purposes

    [Call]3.57V ± 0.05V [Call & Idle]3.30 ± 0.05V [Idle]3.67V ± 0.05V [Idle]3.78V ± 0.05V L705i Battery Bar Display LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 50 - Only for training and service purposes...

  • Page 50: 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 - 51 - Only for training and service purposes...

  • Page 51: 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. - 52 - Only for training and service purposes...

  • Page 52: External Memory Interface

    Toshiba 50 ns 50 ns SDRAM TYA000BC00DOGG Toshiba 15 ns 15 ns Table#1. External memory interface for L705i Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 53 - Only for training and service purposes...

  • Page 53: 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. - 54 - Only for training and service purposes...

  • Page 54: 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 - 55 -...

  • Page 55: 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. - 56 - Only for training and service purposes...

  • Page 56: 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 - 57 - Only for training and service purposes...

  • Page 57: Only For Training And Service Purposes

    3. TECHNICAL BRIEF L705i 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, L705i does not support booting from USB.

  • Page 58: 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 - 59 - Only for training and service purposes...

  • Page 59: Only For Training And Service Purposes

    SIDE KEY KEY_ROW(2) DOWN KEY_ROW(3) HOT600 HOT601 KEY_COL(0) HOT3 HOT4 KEY_ROW(4) KEY_COL(1) KEY_COL(2) KEY_COL(3) KEY_COL(4) Figure. Keypad Circuit 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

    CAM_HSYNC CAM_DATA(2) CAM_MCLK CAM_DATA(1) CAM_DATA(0) VREG_CAM_2.8V CAM_PCLK VREG_DOVDD_2.7V CAM_RESET_N VREG_CAM_1.5V CAM_P_DOWN Figure. FPCB Connector to Camera Module Connector 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

    8bits data from camera module. The camera module is controlled by I2C port from MSM6280. Table1. Interface between 1.3 Mega 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

    TK60012BM5 EUSY0268101 R504 IO_VDD VREG_MSMP_2.7V GND2 GND1 C505 0.1u FOLDER_DETECT_N C508 Figure. Schematic of FOLDER 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

    There are 2 White LEDs in MAIN PCB, which are driven by KYBD_BACKLIGHT line from PM6650. KEY_BACK_LIGHT LD600 CL-435F-WQ-SD-TS R602 +VPWR KYBD_BACKLIGHT R601 R603 LD601 CL-435F-WQ-SD-TS 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

    3.11.8. LCD Module (IM240DST2A : LG innotek LCD module) - The IM240DST2A model is a Color TFT Main LCD supplied by LG innotek. This main Module has a 2.4 inch diagonally measured active display area with 240(RGB)X320 resolution. Each pixel is divided into Red, Green and Blue sub-pixels and dots which are arranged in vertical stripes.
  • Page 65 EBI2_DATA(5) VREG_MSMP_2.7V EBI2_DATA(4) LCD_CS_SUB_N EBI2_DATA(3) EBI2_DATA(2) MLED_ANODE EBI2_DATA(1) MLED_CATHOD5 EBI2_DATA(0) MLED_CATHOD4 MLED_CATHOD1 MLED_CATHOD3 MLED_CATHOD2 VA102 EVLC14S02050 VA103 EVLC14S02050 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. 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

    C501 0.1u MIC2P C503 EAR_SENSE_N R505 HPH_R R506 HPH_L STEREO_DET_N C504 VREG_MSMP_2.7V 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

    R300 MICBIAS C300 0.1u MIC1N MIC1P C301 0.1u MIC300 C302 C304 C303 C305 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: Only For Training And Service Purposes

    HSEJ-10S-05 Ear jack Receiver EMS1810TCD1P 8 ohm Speaker MIC300 SP0204LE5-PB4 -42 dB microphone Table. Audio main component list 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 - 860 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

    2. L705i Main Component LCD Connector jack & Ear Logic (Power) Logic SIM & Main board, Bottom Main board, TOP 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

    I/O Connector Crystal 48M TP12 Ear jack Connector IrDA TP13 LCD Connector SELECTION SWITCH MIC1 (SPK or RCV 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

    3. TECHNICAL BRIEF MAIN PCB TOP Main TOP Reference Description Reference Description LD1,LD2 Hall Sensor 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

    LCD Connector FPCB Module Backup Battery Camera Connector Sub Key Connector LCD Module Connector Camera Camera Module Sub Key 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

    Tx / Rx FL105 EFCH836 MTDB1 W800 Tx SAW U107 RFR6275 RF Receiver FL107 EFCH881MTDAA W800 Rx SAW LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 78 - Only for training and service purposes...

  • Page 78: Checking Vcxo Block

    TCXO_PM R127 C170 1000p RTR6275_TCXO VCONT TRK_LO_ADJ C171 1000p RFR6275_TCXO C172 0.01u VREG_TCXO_2.85V C176 C177 0.1u 1000 pF Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 79 - Only for training and service purposes...

  • Page 79: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Check C400 of PM IC ( U 400) Check C273 of M S M (U201) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 80 - Only for training and service purposes...

  • Page 80: Checking Ant. Sw Module Block

    TP1 : VREG_RF_SMPS R111 ANT_SEL0 R112 ANT_SEL1 R113 ANT_SEL2 C121 C122 C123 VREG_RF_SMPS 0603 0603 C119 C120 0.1u Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 81 - Only for training and service purposes...

  • Page 81: Only For Training And Service Purposes

    µA Control current max µS Switching Speed * L705i WB2100 band uses WB1900 path in the FEM. So the FEM logic is changed from (1,0,1) to (0,0,1). Logic Table of the Front End Module Check Soldering of ANT_SEL 0,1,2 High Level Check Vdd 1.5V<Voltage<3.0V...

  • Page 82: Checking Umts Block

    SCDY0003403 C163 L505 CP0402A1950DNTR 2.2nH C169 1.2p C103 WCDMA_2100 C135 SW100 L103 KMS-507 L112 L113 ENWY0003301 56nH 5.6nH 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

    Check the PAM FEM FL100 Block U 1 04 and so lderi ng C103 Measured value and spectrum of TP1 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 84 - Only for training and service purposes...

  • Page 84: 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 - 85 - Only for training and service purposes...

  • Page 85: Only For Training And Service Purposes

    C184 AWT6307R GND1 L504 1.5nH RFOUT VMODE L129 FL105 18nH EFCH836MTDB1 GND2 RFIN SFSY0030301 BGND VBATT C133 WCDMA_800 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

    Block U 578 Block U 574 C103 C1400 C1400 Measured value and spectrum of TP1 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

    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. - 88 - Only for training and service purposes...

  • Page 88: Only For Training And Service Purposes

    C178 100ohm 100ohm 0.1u TP2* 0603 PA_ON1 +VPWR TP3* C166 C167 C164 0.01u 120p 4.7u +VPWR C187 C186 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

    GND4 SFSY0030101 TP4* TP2* C134 C133 WCDMA_800 WCDMA_2100 C135 C136 C604 C173 5.6p FL101 C153 SAFEB2G14FA0F00 W2100_RX 6.8nH 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

    RER6275, FL101, FL107 Rx is OK Check other Parts TP*:UMTS 800 Rx PATH TP: UMTS 2100 Rx PATH Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 91 - Only for training and service purposes...

  • Page 91: Checking Gsm Block

    18nH L105 4.7nH DCS RX R607 L106 L107 4.7nH L108 4.7nH PCS RX C124 L110 0.5p L111 4.7nH 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

    EGSM_OUT EGSM_IN R119 U102 0603 RSVD_GND SKY77318 ENABLE GSM_PA_EN SMPY0014001 P_GND GSM_PA_BAND R123 0603 C161 C162 0603 0603 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 93 - Only for training and service purposes...

  • Page 93: Only For Training And Service Purposes

    18nH L105 4.7nH DCS RX R607 L106 L107 4.7nH L108 4.7nH PCS RX C124 L110 0.5p L111 4.7nH LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 94 - Only for training and service purposes...

  • Page 94: Power On Troubleshooting

    VREG_MSMA_2.6V power up? Is clock ok? R408 : 19.2M Check the TXCO & Crystal X400: 32.768Khz Change the Main board 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

    R408 : 19.2MHz VREG_MSMA X400 : 32.768Khz VREG_MSMP VREG_MSMC VREG_MSME Main board, Bottom R1125 : 19.2MHz X2 : 32.768Khz LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 96 - Only for training and service purposes...

  • Page 96: Only For Training And Service Purposes

    Artwork --> Place crystal and load caps close to PM6650 !! L402 L403 4.7uH 4.7uH VREG_TCXO(C400) 2016 2016 VREG_MSMC(C429) VREG_MSME(C434) Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 97 - Only for training and service purposes...

  • Page 97: 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. - 98 - Only for training and service purposes...

  • Page 98: Only For Training And Service Purposes

    ICHARGE R415 (1%) ERHZ0003901 smd_2125h_65_r ICHARGEOUT +VPWR Q401 Q401 FDJ129P EQFP0005101 VBATT BATT_FET_N Figure . Charging part schematic Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 99 - Only for training and service purposes...

  • Page 99: Only For Training And Service Purposes

    Change TA Is the TA voltage 5.4V? Is it charging properly After turning on Q400, Q401? Change the board LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 100 - Only for training and service purposes...

  • Page 100: Usb Troubleshooting

    4. TROUBLE SHOOTING 4.8. USB Troubleshooting USB Initial sequence of L705i is: USB connected to L705i power on → USB_VBUS(Q402 PIN4) go to 5V → USB_D+ go to → 3.3V→ USB_VP and USB_VN is triggered → USB work. Start Go to power on trouble shooting...

  • Page 101: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Q402 U401 Q402 U401 U401 PLR0504F USB_VBUS USB_VBUS_IN USB_D+ USB_D- PS_HOLD Q402 KRX102E LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 102 - Only for training and service purposes...

  • Page 102: Sim Detect Troubleshooting

    Work well? VREG_USIM_2.85V is 2.85V? Check J300 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 - 103 - Only for training and service purposes...

  • Page 103: Only For Training And Service Purposes

    < SIM - 1.8T > R313 4.7K J300 VREG_USIM_2.85V USIM_P_RST_N USIM_P_DATA USIM_P_CLK GND4 GND1 GND3 GND2 L300 USIM_P_CLK VREG_USIM_2.85V LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 104 - Only for training and service purposes...

  • Page 104: Mega Camera Troubleshooting

    VREG_CAM_2.8V is 2.8V(C441) 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 - 105 - Only for training and service purposes...

  • Page 105: Only For Training And Service Purposes

    ISL9011IRJBZ-T +VPWR VOUT1 VREG_CAM_2.8V CAM_PWR_EN VOUT2 VREG_CAM_1.5V C441 C442 R422 C439 C440 C441 C442 BGND 100K 0.1u R422 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 106 - Only for training and service purposes...

  • Page 106: Keypad Backlight Troubleshooting

    KYBD_BACKLIGHT is Low Check battery Change the Main board KEYPAD LED Lighting (on) Change the Main board KEYPAD LED position Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 107 - Only for training and service purposes...

  • Page 107: Folder Close / Open Troubleshooting

    TK60012BM5 EUSY0268101 R504 Change the Main board IO_VDD VREG_MSMP_2.7V GND2 GND1 C505 0.1u FOLDER_DETECT_N C508 Magnet position U500 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 108 - Only for training and service purposes...

  • Page 108: Main Lcd Troubleshooting

    The LCD connector(80pin Con) Disconnect and reconnect The LCD connector(44pin Con) LCD display OK? Change of new 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: Receiver Path

    PIN43,PIN44 of CN501 The sine wave appears at Folder FPCB re-connecting. PIN43,PIN44 of CN104 Change the Main board LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 110 - Only for training and service purposes...
  • Page 110 4. TROUBLE SHOOTING CN104 CN501 1KHz Sine wave Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 111 - Only for training and service purposes...

  • Page 111: Headset Path

    100K HSEJ-10S-05 R503 2.2K C501 0.1u MIC2P C503 EAR_SENSE_N R505 HPH_R R506 HPH_L STEREO_DET_N C504 VREG_MSMP_2.7V HOOK_SENSE_N C504 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 112 - Only for training and service purposes...
  • Page 112 4. TROUBLE SHOOTING C503 C504 1KHz Sine wave Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 113 - Only for training and service purposes...

  • Page 113: Speaker Phone Path

    R306 U300 8200p SPK_RCV+ COM2 RCV- R309 C318 SPK_RCV- RCV+ COM1 SPK_AMP_EN SPK_RCV+ TP310 LOW: SHDN RCV_EN R309 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 114 - Only for training and service purposes...
  • Page 114 4. TROUBLE SHOOTING R308 R309 Connector 1KHz Sine wave Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 115 - Only for training and service purposes...

  • Page 115: Main Microphone

    Change the Main board Work well? SP0204LE5-PB SUMY0010602 R300 MICBIAS C300 0.1u MIC1N MIC1P C301 0.1u MIC300 C302 C304 C303 C305 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 116 - Only for training and service purposes...
  • Page 116 4. TROUBLE SHOOTING C300 C301 C305 C303 MIC1 C24 OR C29 C27 OR C28 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 117 - Only for training and service purposes...

  • Page 117: Headset Microphone

    Change the headset or Sine wave appears at Main board and retry. C501 ? Change the Main PCB LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 118 - Only for training and service purposes...
  • Page 118 HSEJ-10S-05 C501 R503 2.2K C501 0.1u MIC2P C503 EAR_SENSE_N R505 HPH_R R506 HPH_L STEREO_DET_N C504 VREG_MSMP_2.7V HOOK_SENSE_N D501 Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 119 - Only for training and service purposes...

  • Page 119: Vibrator

    4V? Check the LCD FPCB Change vibrator KEY_ROW(3) KEY_ROW(4) KEY_COL(4) KEY_COL(5) L500 L500 56nH MOTOR_PWR- +VPWR <Main Board> LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 120 - Only for training and service purposes...

  • Page 120: 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 121 (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. - 122 - Only for training and service purposes...
  • Page 122 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 - 123 -...
  • Page 123 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. - 124 - Only for training and service purposes...
  • Page 124 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 - 125 -...
  • Page 125 ★ 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. - 126 - Only for training and service purposes...
  • Page 126 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 - 127 - Only for training and service purposes...
  • Page 127 Normally LGMDP will downloaded all files that need downloading. To download selected image file onlysimply select the image file that user want to process downloading. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 128 - Only for training and service purposes...
  • Page 128 Dow nload PB L and Reset QCSBL Download OEMSBL Download End Download MODEM Reset <Down load proc ess> Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 129 - Only for training and service purposes...
  • Page 129 • 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. - 130 - Only for training and service purposes...
  • Page 130 • 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 - 131 - Only for training and service purposes...
  • Page 131 • 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. - 132 - Only for training and service purposes...
  • Page 132 Device Manager allows to monitor current hardware that is installed on your PC. Device Manager is designed to monitor 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 - 133 -...
  • Page 133 Select directory to store log files by clicking on the ... button. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 134 - Only for training and service purposes...

  • Page 134: 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 - 135 - Only for training and service purposes...
  • Page 135 5. DOWNLOAD → Connect to the phone. LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 136 - Only for training and service purposes...
  • Page 136 5. DOWNLOAD → Click on ‘Cancel’. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 137 - Only for training and service purposes...
  • Page 137 ★ 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. - 138 - Only for training and service purposes...
  • Page 138 5. DOWNLOAD → Select the proper file and click on ‘Restore’. Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 139 - Only for training and service purposes...
  • Page 139 → If you want image download and NV backup file restore at once, use the NV Default function. → → Must do Calibration after NV Restore LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 140 - Only for training and service purposes...

  • Page 140: Caution

    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 141: Block Diagram

    6. BLOCK DIAGRAM 6. BLOCK DIAGRAM 6.1 GSM & UMTS RF Block Fig 6.1.1 UMTS-800,1900+GSM-850/GSM-900/DCS-1800/PCS-1900 RF Functional Block Diagram (L705i doesn’t use U1900, G850, GPS paths) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 142 -...
  • Page 142 UMTS 800 TX FL105 EFCH836MTDB1 SAW Filter U102 SKY77318 GSM TX Dual PAM Table 6.1.1. RF Block Component Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 143 - Only for training and service purposes...

  • Page 143: Interface Diagram

    6. BLOCK DIAGRAM 6.2 Interface Diagram Fig 6.1.2 L705i Interface Diagram ( L705i doesn’t use U1900, G850, GPS paths ) LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 144 - Only for training and service purposes...
  • Page 144 GSM_PA_RAMP: DCS or PCS /GSM Power Amp Gain Control UMTS PA_CTL signal PA_ON0, 1: UMTS Tx Power Amp Enable Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 145 - Only for training and service purposes...

  • Page 145: Top Side

    6. BLOCK DIAGRAM *Top Side LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 146 - Only for training and service purposes...

  • Page 146: Bottom Side

    6. BLOCK DIAGRAM *Bottom Side Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 147 - Only for training and service purposes...
  • Page 147 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 148 - Only for training and service purposes...

  • Page 148: Circuit Diagram

    VDDA11 100p 100p Chip - 0603 VREG_MSMP_2.7V VDDM1 VDDA12 0603 C210 VDDM2 VDDA13 C211 C212 100p VDDA14 0603 - 149 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 149 A2_2 MDDIC_STBP A2_1 MDDIC_STBN C274 Place near 0.1u MSM pin AD26 R211 R212 2.2K VREG_DOVDD_2.7V 0603 R213 2.2K - 150 - LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 150 USIM_P_DATA USIM_P_CLK JTAG_RTCK GND4 GND1 GND3 GND2 L300 for FACTORY Line TP312 UART_TXM TP313 UART_RXM TP314 AUTO_BOOT_N R314 - 151 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 151 U404 Q402 ISL9011IRJBZ-T KRX102E +VPWR VOUT1 VREG_CAM_2.8V CAM_PWR_EN VOUT2 VREG_CAM_1.5V R422 C439 C440 BGND C441 C442 100K 0.1u - 152 - LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 152 CAM_DATA(5) INOUT_A2 INOUT_B2 KEY_COL(5) VREG_CAM_2.8V CAM_DATA(4) INOUT_A1 INOUT_B1 L500 56nH MOTOR_PWR- FL508 ICVE10184E070R100FR +VPWR VREG_CAM_1.5V V_BACK_UP C518 0.1u - 153 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 153 UART_TXM TX-RC LEDA R606 OJ600 OJ601 OJ602 OJ603 SIR TRANCEIVER SD(L:ACTIVE, H:SHUTDOWN) LOW POWER MODE : LEDA VCC - 154 - LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 154 R103 LD100 R_LED KEY_ROW(3) KEY_COL(4) G_LED R_LED_EN G_LED_EN KEY_ROW(4) KEY_COL(5) R104 G_LED R_LED GREEN TP107 TP104 TP102 TP103 - 155 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 155 7. CIRCUIT DIAGRAM SIDE KEY - 156 - LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 156 7. CIRCUIT DIAGRAM MULTI KEY CONN Rev.1.0 KB100 KB101 KEY_ROW(3) CN100 KB102 KB103 KEY_ROW(3) KEY_COL(4) KEY_ROW(4) KEY_COL(5) KEY_ROW(4) KEY_COL(4) KEY_COL(5) - 157 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 157 - 158 - LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 158: 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 - 159 - Only for training and service purposes...
  • Page 159 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 160 - Only for training and service purposes...

  • Page 160: Pcb Layout

    9. PCB LAYOUT U500 HALL EFFECT IC(TK60012BM5G0L) LD600 Key pad LED(TK60012BM5G0L) LD601 Key pad LED(TK60012BM5G0L) - 161 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 161 MIC300 Microphone (RPM840-H11/RPM841-H11) (SP0204LE5-PB4) Q402 USB VBUS switch U402 I/O connector (KRX102E) (RA1R011HA1) Q401 Battery charging control FET(FDJ129P) - 162 - LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 162 (PLR0504F-P) CN400 Battery connector (HSBC-3PT25-19) Q400 TA Charging control switch (QST4) FL400 EMI filter for TA charging (NFM18PC104R1C3) - 163 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 163 9. PCB LAYOUT CN100 Board to board connector (AXK7L10227G) - 164 - LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 164 9. PCB LAYOUT - 165 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 165 9. PCB LAYOUT LD100 Camera / charging indicator LED (EDLA0000201) - 166 - LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 166 CN105 Camera connector (AXT314164) U100 Charging LED switching Tr (UMH9NTN) CN104 LCD connector (AXK8L44125) CN102 Main LCD connector (AXK7L80227G) - 167 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 167 - 168 - LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 168: Calibration & Rf Auto Test Program (Hot Kimchi)

    Model 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_L705i_302.xml LG_UI_Qu6275_004.dll script_100.xml : Directory Multi HK.reg Spec_L705i_113.xml : File Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 169 - Only for training and service purposes...

  • Page 169: 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. - 170 - Only for training and service purposes...
  • Page 170 10. Calibration & RF Auto Test Program (Hot Kimchi) L705i Click "Start" Select "L705i" * Procedure 4. Select the model name “L705i” 5. Click “Start” button Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 171 - Only for training and service purposes...
  • Page 171 AG AGC value C value & enter enter ñ W WCDM CDMA : : 344 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 172 - Only for training and service purposes...
  • Page 172 1500 9. C 9. C lic lick P PA D A DAC in input butto put butto n Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 173 - Only for training and service purposes...
  • Page 173 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 174 - Only for training and service purposes...

  • Page 174: Exploded View & Replacement Part List

    11. EXPLODED VIEW & REPLACEMENT PART LIST 11.1 EXPLODED VIEW 18 19 21 22 23 24 26 27 42 44 62 63 47 48 - 175 - Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 175 ASS’Y EXPLODED VIEW - 176 - LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 176: Replacement Parts

    COVER,FRONT MCJK0076201 MOLD, PC LUPOY SC-1004A, , , , , Black MICA00 INSERT,FRONT MICA0019901 M1.4 D2.2 L1.5 Gold Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 177 - Only for training and service purposes...
  • Page 177 COMPLEX, (empty), 0.15, , , , Without Color MLAB00 LABEL,A/S MLAB0003601 COMPLEX, (empty), , , , , Without Color LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 178 - Only for training and service purposes...
  • Page 178 MLAC0006801 COMPLEX, (empty), 0.15, , , , Without Color MLAZ00 LABEL MLAZ0038301 PID Label 4 Array Without Color Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 179 - Only for training and service purposes...

  • Page 179: Main Component

    SAJB0012201 ADCA00 DOME ASSY,METAL ADCA0070901 Without Color MIDZ00 INSULATOR MIDZ0155701 COMPLEX, (empty), , , , , Without Color LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 180 - Only for training and service purposes...
  • Page 180 ECCH0000149 3.3 nF,50V,K,X7R,HD,1005,R/TP C115 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C117 CAP,CHIP,MAKER ECZH0000816 12 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 181 - Only for training and service purposes...
  • Page 181 6.8 nH,J ,1005 ,R/TP ,Pb Free C154 CAP,CHIP,MAKER ECZH0000813 100 pF,50V ,J ,NP0 ,TC ,1005 ,R/TP C155 CAP,CERAMIC,CHIP ECCH0000107 6 pF,50V,D,NP0,TC,1005,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 182 - Only for training and service purposes...
  • Page 182 ECCH0009103 100 pF,50V ,J ,X7R ,TC ,0603 ,R/TP C197 CAP,CERAMIC,CHIP ECCH0009106 10 nF,16V ,K ,X7R ,TC ,0603 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 183 - Only for training and service purposes...
  • Page 183 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C249 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP C250 CAP,CERAMIC,CHIP ECCH0000143 1 nF,50V,K,X7R,HD,1005,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 184 - Only for training and service purposes...
  • Page 184 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C311 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 185 - Only for training and service purposes...
  • Page 185 ECCH0006201 4.7 uF,6.3V ,K ,X5R ,TC ,1608 ,R/TP C425 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP C426 CAP,CERAMIC,CHIP ECCH0000115 22 pF,50V,J,NP0,TC,1005,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 186 - Only for training and service purposes...
  • Page 186 ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP C521 CAP,CHIP,MAKER ECZH0003103 0.1 uF,10V ,K ,X7R ,HD ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 187 - Only for training and service purposes...
  • Page 187 ,1.8 ,3.0x2.5x1.1 ,DUAL ,SMD ,P/TP FL104 FILTER,SAW SFSY0028101 1950 MHz,1.4*1.4 ,SMD ,Pb-free_DCS1900_Rx FL105 FILTER,SAW SFSY0030301 836.5 MHz,1.4*1.1*0.6 ,SMD ,Pb-free_DCN_Tx_SAW LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 188 - Only for training and service purposes...
  • Page 188 33 nH,J ,1005 ,R/TP , L133 INDUCTOR,CHIP ELCH0004720 1.2 nH,S ,1005 ,R/TP , L134 INDUCTOR,CHIP ELCH0001401 15 nH,J ,1005 ,R/TP ,Pb Free Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 189 - Only for training and service purposes...
  • Page 189 1 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP R113 RES,CHIP ERHY0009504 1 Kohm,1/20W(0.05W) ,J ,0603 ,R/TP R114 RES,CHIP ERHY0013101 2.7 ohm,1/16W ,J ,1005 ,R/TP LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 190 - Only for training and service purposes...
  • Page 190 47 Kohm,1/16W ,J ,1005 ,R/TP R302 RES,CHIP,MAKER ERHZ0000486 47 Kohm,1/16W ,J ,1005 ,R/TP R303 RES,CHIP,MAKER ERHZ0000443 2200 ohm,1/16W ,J ,1005 ,R/TP Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 191 - Only for training and service purposes...
  • Page 191 10000 ohm, ohm,8 PIN,J ,1/32 W ,SMD ,R/TP SW100 CONN,RF SWITCH ENWY0003301 ,SMD ,0.4 dB, U100 EUSY0207001 MINI MOLD ,6 PIN,R/TP ,SPDT SWITCH LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 192 - Only for training and service purposes...
  • Page 192 14 V, ,SMD ,50pF, 1005 VA505 VARISTOR SEVY0001001 14 V, ,SMD ,50pF, 1005 VA506 VARISTOR SEVY0003801 18 V, ,SMD , Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 193 - Only for training and service purposes...
  • Page 193 SPFY0155401 U500 EUSY0268101 SON2017-6 ,6 PIN,R/TP ,HALL SWITCH, Pb Free VA600 VARISTOR SEVY0004201 14 V, ,SMD ,120pF, 1005 LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. - 194 - Only for training and service purposes...

  • Page 194: Accessory

    MPBZ01 MPBZ0036824 BOX, TW, , , , , Without Color STONE MPCY00 PALLET MPCY0017601 PALLET(for L600i NTT_1100x1100mm) BLACK Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only - 195 - Only for training and service purposes...
  • Page 195 Note LGE Internal Use Only Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 196 Note Copyright © 2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

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