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LG -P350 Service Manual

LG -P350 Service Manual

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Internal Use Only
Service Manual
LG-P350
Date: January, 2011 / Issue 1.0

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Summary of Contents for LG LG-P350

  • Page 1 Internal Use Only Service Manual LG-P350 Date: January, 2011 / Issue 1.0...

  • Page 2: Table Of Contents

    4.1 RF Component ..................71 1.3 Accessory .....................15 4. SIGNAL PATH ................... 73 4.3 Checking TCXO Block ................76 LGE Internal Use Only -  - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 3: Introduction

    LGE Internal Use Only - 3 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 4 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. LGE Internal Use Only - 4 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 5: Abbreviations

    International Portable User Identity Intermediate Frequency Liquid Crystal Display Low Drop Output Light Emitting Diode OPLL Offset Phase Locked Loop 6/140 LGE Internal Use Only - 5 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 6 UART Universal Asynchronous Receiver/Transmitter Voltage Controlled Oscillator VCTCXO Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol 7/140 LGE Internal Use Only - 6 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 7: Performance

    Part Name Comment Digital Baseband MSM7227 : Qualcomm Analog Baseband PM7540 : Qualcomm RF Chip RTR6285 : Qualcomm LGE Internal Use Only - 7 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 8: Hw Features

    E2 (DCS) GPRS compatibility GPRS Class 12 EDGE compatibility EDGE Class 12 Plug-In SIM SIM card type 3V /1.8V LGE Internal Use Only - 8 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 9 MPEG4, H.263, H.264 Voice Recording Speaker Phone mode Support Travel Adapter CDROM Stereo Headset Data Cable T-Flash (External Memory) LGE Internal Use Only - 9 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 10: Sw Features

    There is no limitation on the number Group of items. It depends on available memory amount. Fixed Dial Number LGE Internal Use Only - 10 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 11 There is no limitation on the number of items. Memo It depends on available memory amount. World Clock Unit Convert Stop Watch Wall Paper LGE Internal Use Only - 11 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 12 GPRS Class 12 EDGE Class 12 Hold / Retrieve Conference Call Max. 6 DTMF Memo pad SyncML Email LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 13: Hw Spec

    : -98dBm/-96dBm (2.439%) AM Suppression -98dBm/-96dBm (2.439%) GSM : -31dBm DCS : -29dBm Timing Advance ± 0.5T LGE Internal Use Only - 13 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 14 < 17.5 %, when Pout ≥ -20 dBm Peak Code Domain Error < -15 dB at Pout -20 dBm LGE Internal Use Only - 14 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 15 +1.5/4 Inner Loop Power Control -0.5/+0.5 -0.5/+0.5 -0.5/+0.5 In Uplink -0.5/-1.5 -1/-3 -1.5/-4 group(10equal command group) +8/+12 +16/+24 LGE Internal Use Only - 15 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 16 > 33 dB @ ±5 MHz > 43 dB @ ±10 MHz Error Vector Magnitude < 17.5 %, when Pout ≥ -20 dBm LGE Internal Use Only - 16 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 17 ≥ -10dBm(1Mbps,2Mbps,5.5Mbps,11Mbps) @ FER ≤ 8% Rx Adjacent Channel ≥ 35dB @FER ≤ 8%, Rejection interference input signal -70dBm@fc±25MHz(11Mbps) LGE Internal Use Only - 17 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 18 1574.42 MHz ~ 1576.42 MHz Minimum Sensitivity 1 satellite ≥-142dBm, 7 satellites ≥ -147dBm at coarse time aiding LGE Internal Use Only - 18 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 19: Technical Brief

    3. TECHNICAL BRIEF 3.1 GENERAL DESCRIPTION The LG-P350 supports UMTS-900, UMTS-2100, GSM-850, GSM-850, GSM-900, GSM-1800, and GSM-1900 based GSM/GPRS/EDGE/UMTS. All receivers and the UMTS transmitter use the radioOne1Zero-IF architecture to eliminate intermediate frequencies, directly converting signals between RF and baseband. The quad-band GSM transmitters use a baseband-to-IF upconversion followed by an offset phase-locked loop that translates the GMSK-modulated or 8-PSK-modulated signal to RF.
  • Page 20 3. TECHNICAL BRIEF A generic, high-level functional block diagram of LG-P350 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 ASM(Antenna-Switch-Module).

  • Page 21: Gsm Mode

    The filter outputs are buffered and passed on to the MSM7227 IC for further processing asshown in Figure 1-2. LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 22 GSM application. Both high-band and low band outputs are followed by resistive pads to ensure that the load presented to the outputs remains close to 50ohm. LGE Internal Use Only -  - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 23: Umts Mode

    GSM Rx to the MSM IC. The UMTS baseband outputs are turned off when the RTR6285 is downconverting GSM signals and on when the UMTS is operating. [Figure 1-4] UMTS Receiver Inputs Topologies LGE Internal Use Only - 3 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 24: Umts Transmitter

    FVCO to equal FRF. The RTR6285 IC is able to support UMTS 2100/1900/1800/1700 and 850 mode transmitting. This design guideline shows only UMTS 2100 applications. LGE Internal Use Only - 4 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 25 3. TECHNICAL BRIEF [Figure 1-5] RTR6285 IC Functional Block Diagram LGE Internal Use Only - 5 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 26: Gps Receiver

    PLL synthesizers, the RTR6285 ICs have the advantage of more flexible loop bandwidth control, fast lock time, and low-integrated phase error. LGE Internal Use Only - 6 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 27: Off-Chip Rf Components

    The Module is housed in a cost effective, small and thin 4x5mm package. ACPM-5281 (W2100,W900) LGE Internal Use Only - 7 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 28 0.1 μF low frequency filter near to MSM side, and isolate from digital logic and clock traces with ground on both sides, plus ground above and below if routed on internal layers. LGE Internal Use Only - 8 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 29 The integrated power amplifier control (PAC) function provides envelope amplitude control by reducing sensitivity to input drive, temperature, power supply, and process variation. LGE Internal Use Only - 9 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 30 3. TECHNICAL BRIEF [Figure 1.9] SKY77544 Block Diagram [Figure 1.10] SKY77544 Control Logic LGE Internal Use Only - 30 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 31 The RF2185 is packaged in a compact 3.3 mm x 2.1 mm x 1.0 mm package with low external component count required to achieve the best-in-class performance. LGE Internal Use Only - 31 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 32: Digital Baseband(Dbb/Msm77)

    -Vocoder support (GSM-HR, FR, EFR, AMR, and AMR-WB/+) -Advanced 12 × 12 ×1.05 mm, 0.4 mm pitch, 560 NSP LGE Internal Use Only - 3 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 33: Hardware Architecture

    PON_RESET_N (TS5USBA) JTAG_PS_HOLD USBH DM & DP REMOTE_PWR_ON nJTAG_RESOUT Array TP JTAG CONN. JTAG(TCK,TDI,TDO…) UART3_TX/RX Figure. Block Diagram LGE Internal Use Only - 33 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 34 3. TECHNICAL BRIEF <Power Block> Figure. Simplified Block Diagram LGE Internal Use Only - 34 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 35: Subsystem (Msm77)

    GSM support includes: -GSM release ‘99 (circuit switching) -GPRS (packet switching) -EDGE E2 power class for 8 PSK LGE Internal Use Only - 35 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 36: Vocoder Subsystem

    The MSM7227 device’s integrated ARM9TDMI processor downloads the firmware into the QDSP4000 and configures QDSP4000 to support the desired functionality. LGE Internal Use Only - 36 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 37 USB operations at low-speed and full-speed. -The secondary controller is the FS USB-UICC port, which only supports host mode functionality. LGE Internal Use Only - 37 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 38: Power Block

    Manager for time-critical information. Another dedicated IC Interface circuit monitors multiple trigger events and controls the power-on sequence. LGE Internal Use Only - 38 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 39 3. TECHNICAL BRIEF Figure. PM7540 functional block diagram LGE Internal Use Only - 39 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 40 (3.2V). The charging current is set to 80mA. Parameter Unit Trickle Current Figure. PM7540 Charging Flow (TC Charging) LGE Internal Use Only - 40 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 41 The constant current charging continues until the battery reaches its target voltage, 4.2V. Figure. PM7540 Charging Flow (CC Charging) LGE Internal Use Only - 41 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 42 Critical Low Battery Pop-up 0% ~ 3% : Level change popup (No call) POWER OFF Table. LG-P350 battery bar specification LGE Internal Use Only - 4 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 43: External Memory Interface

    Interface Spec Part Name Product Gr Maker Operation Voltage Speed H8BCS0UN0MCR- NAND HINIX 1.8V 42ns SDRAM 1.8V 200MHz LGE Internal Use Only - 43 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 44: H/W Sub System

    GSM_PA_RAMP : Power Amp Gain Control of APC_IC 3.12.1.3. RF2815 (GPS LNA) * GPS_LNA_EN : GPS LNA Enable Signal (GPS LNA Shutdown) LGE Internal Use Only - 44 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 45 * FM_R : Right audio line output – digital input data. * FM_L : Left audio line output – digital frame synchronization. LGE Internal Use Only - 45 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 46 38 4MHz 38.4MHz BT HOST WAKEUP BT_HOST_WAKEUP CLK IN CLK_IN GPIO83 BT_GPIO_1 OSCIN TCXO Figure. Wifi/BT/FM Interface Block Diagram LGE Internal Use Only - 46 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 47: Msm Sub System

    UART signals are connected to MSM GPIO through IO connector with 115200 bps speed. GPIO_Map Name Note GPIO_86 UART3_RX Data_Rx GPIO_87 UART3_TX Data_Tx Table. UART Interface LGE Internal Use Only - 47 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 48 (USBPHY_REXT) and a USB system clock pin which the USB PHY uses to lock its internal PLL (SYS_CLK) Figure. HS-USB connections and architecture LGE Internal Use Only - 48 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 49 R814 PM_ON_SW 100K VA801 Figure. End key SEND KB801 R812 KEY_ROW[0] R816 KEY_COL[1] ZD803 ZD805 Figure. Send key LGE Internal Use Only - 49 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 50 +VPWR +VPWR 1608 TOP VIEW LED LD800 R808 KEY_LED_DRV_N R809 LD801 EDLH0005901 C805 LEWW-S14 VA800 Figure. KEY Backlight LGE Internal Use Only - 50 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 51: Audio And Sound

    BT_PCM_CLK FM_R FM_L MICBIAS MSM7227 FM ANT AUDIO SUBSYSTEM TPA2055D3 Figure. Block diagram of Audio & Sound path LGE Internal Use Only - 51 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 52 The DSP audio processing is configured through the QDSP5000 command types and is not directly controlled by the microprocessor. LGE Internal Use Only - 5 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 53 3. TECHNICAL BRIEF Figure. Detailed diagram of MSM7227 audio interface LGE Internal Use Only - 53 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 54 The TPM2055D3 is available in a 0.5 mm pitch 20-bump WCSP with less than 0.8 mm height. Figure. Detailed diagram of TPA2055D3 audio interface LGE Internal Use Only - 54 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 55 TP602 ENJE0008001 R629 HOOK_ADC C617 C618 C637 C615 C616 L600 C619 270n EAR_SENSE STATE LOW(DEFAULT) UNMATING HIGH MATING LGE Internal Use Only - 55 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 56 HPH_R U600 IN1- C612 LINE_OP EAR_L IN2+ C613 LINE_ON EAR_R IN2- AUDIO_I2C_SDA C614 AUDIO_I2C_SCL 2.2u R609 R610 VREG_MSMP_2.6V LGE Internal Use Only - 56 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 57: Display

    INOUT_B2 EBI2_DATA[15] INOUT_A1 INOUT_B1 C710 FL704 ICVE10184E150R101FR Maker Maker ID TOVIS Figure. Schematic of LCD connector (Main Board) LGE Internal Use Only - 57 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 58 3. TECHNICAL BRIEF Table. Interface between LCD Module and MAIN Board LGE Internal Use Only - 58 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 59: Vibrators (Q-Coin Motor)

    LIN_PWM_FREQ R627 100K R626 C635 C633 C634 0.1u 0.1u Figure. Q-Coin Moter IC Schematic Figure. Vibrator Block Diagram LGE Internal Use Only - 59 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 60: Compass Sensor

    C627 C628 470n R617 R618 2.2K 2.2K U604 COMPASS_I2C_SCL COMPASS_I2C_SDA TP601 DRDY COMPASS_DRDY ADDR Figure. Compass Sensor Schematic LGE Internal Use Only - 60 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 61 3. TECHNICAL BRIEF Figure. Compass Sensor Block Diagram LGE Internal Use Only - 61 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 62: Motion Sensor

    TP600 INT1 MOTION_INT RESERVED1 SCL_SPC MOTION_I2C_SCL INT2 GND1 MOTION_I2C_SDA Figure. Motion Sensor Schematic Figure. Motion Sensor Block Diagram LGE Internal Use Only - 6 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 63: Main Features

    - JPEG en/decoder - Supports Bluetooth and HS-USB - Supports WLAN(802.11b, 802.11g) - Supports FM Radio - 1280 mAh (Li-Ion) LGE Internal Use Only - 63 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 64: Main Component

    3. TECHNICAL BRIEF 3.19 Main component 3.19.1. LG-P350 Main component (bottom) WLAN Logic PMIC SD memory soket Main Board Bottom LGE Internal Use Only - 64 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 65 3. TECHNICAL BRIEF 3.19.2. LG-P350 Main component (bottom & Sub carrier) Vibrator Camera Main Board Bottom & Sub carrier LGE Internal Use Only - 65 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 66 3. TECHNICAL BRIEF 3.19.3. LG-P350 Main component (Top) Back-up Battery Dome key Main Board Top LGE Internal Use Only - 66 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 67 WCDMA (VIII) TX SAW Filter FL1002 WCDMA (I) RX SAW Filter FL1007 WCDMA (I) Duplexer FL1004 WCDMA (VIII) Duplexer LGE Internal Use Only - 67 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 68 Crystal U504 MUIC U501 PMIC U503 OVP IC CN701 Touch Connector Q500 Charging IC U700 Charge Pump IC LGE Internal Use Only - 68 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 69 U1003 U200 U201 Reference Description Reference Description U201 WiFi(11bg)+BT+FM(Rx) Chip U1003 GPS LNA U200 SP3T+LNA FL1006 SAW Filter LGE Internal Use Only - 69 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 70 3.19.7. Audio of LG-P350 U600 CN702 CN701 Reference Description Reference Description U600 TPA2055D3 CN701 Touch Connector CN702 Camera Connector LGE Internal Use Only - 70 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 71: Trouble Shooting

    FL1001 DCS/PCS U1001 Rx saw FL1000 GSM PAM+ASM EGSM/850 Rx saw FL1006 GPS Rx saw U1003 GPS LNA LGE Internal Use Only - 71 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 72 GPS LNA FL1007 WCDMA (I) Duplexer FL1006 GPS RX SAW Filter FL1004 WCDMA (VIII) Duplexer SW1000 RF Antenna Connector LGE Internal Use Only - 7 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 73: Signal Path

    WCDMA I and VIII Band TX Signal PATH D2. WCDMA 2100 TX PATH E2. WCDMA 900 TX PATH F1. COMMON TX/RX PATH LGE Internal Use Only - 73 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 74 WCDMA BAND I and VIII RX Signal PATH D1. WCDMA 2100 RX PATH E1. WCDMA 900 RX PATH F1. COMMON TX/RX PATH LGE Internal Use Only - 74 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 75 4. TROUBLE SHOOTING GSM850/GSM900/DCS/PCS’s RX/TX Signal PATH A. GSM850/GSM900/DCS1800/PCS1900 RX PATH B. GSM850/GSM900/DCS1800/PCS1900 TX PATH C. COMMON TX/RX PATH LGE Internal Use Only - 75 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 76: Checking Tcxo Block

    R319 VREG_MSMA_2.6V C310 0.1u TCXO_EN R310 U301 USBH_SYSCLK C320 330p R311 100K Schematic of the Crystal Part (19.2MHz) LGE Internal Use Only - 76 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 77: Lge Internal Use Only

    .4V ≥ Voltage ≥ 0.4V Check the MSM77 Check TP3 Check soldering and 19. MHz Signal components TCXO is OK LGE Internal Use Only - 77 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 78: Checking Gsm Tx Module(Gsm Pam + Fem) Block

    4. TROUBLE SHOOTING 4.4 Checking GSM TX Module(GSM PAM + ASM) Block ANT_SEL1 ANT_SEL0 ANT_SEL2 ANT_SEL3 VBATT(TP1) LGE Internal Use Only - 78 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 79 0603 C1043 PGND10 C1106 C1042 C1045 C1046 C1049 ANT_SEL3 ANT_SEL2 ANT_SEL0 ANT_SEL1 Schematic of the Antenna Switch Block LGE Internal Use Only - 79 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 80 Check ANT_SEL 0, 1, , 3 High Level 1.V < Voltage < 3V Check the TP1(VBATT) Check the Logic in each mode LGE Internal Use Only - 80 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 81: Checking Wcdma Block

    3. Check RF Tx Level 4. Check PAM Block Refer to 1.5.4 5. Check RF Level 6. Ro-download SW & Cal. LGE Internal Use Only - 81 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 82 Refer to 1.3 4.5.2. Checking Tx Module Block Refer to 1.4 4.5.3. Checking RF TX Level Test Point (TX Level) LGE Internal Use Only - 8 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 83 GND3 GND6 C1105 2.2n RX_WCDMA_2100 SDMY0001901 L1039 C1104 Band 1 BAND 1/2 BAND1(2520):SAYP1G95AA0B00 1950MHz, 2140MHz BAND2(2520) : ACMD-7407 LGE Internal Use Only - 83 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 84 RTR685 Maximum output Power = 7 dBm RTR685 minimum output Power = -80 dBm PAM(ACPM-581) = Maximum input Power = 10 dBm LGE Internal Use Only - 84 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 85: Checking Pam Block

    When PAM is under the operation of high power mode (WCDMA_PA_R0(C1929):Low), PAM OUT power must be over 21 dBm PAM IN power must be under 10 dBm LGE Internal Use Only - 85 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 86 4. TROUBLE SHOOTING LGE Internal Use Only - 86 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 87 RF Tx Level is OK Check TP PA_RO ≥ .6V Check MSM77 Check TP1 Over 10 dBm? Check RTR685 Change the board LGE Internal Use Only - 87 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 88 4. TROUBLE SHOOTING 4.5.5. Checking RF Rx Level Bias Test Point (RF Rx Level) LGE Internal Use Only - 88 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 89 GND3 GND6 C1105 2.2n RX_WCDMA_2100 SDMY0001901 C1104 L1039 Band 1 BAND 1/2 BAND1(2520):SAYP1G95AA0B00 1950MHz, 2140MHz BAND2(2520) : ACMD-7407 LGE Internal Use Only - 89 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 90 Check TP3 Signal exist? Check Duplexer Check TP4 Signal exist? Check RTR685 and Rx SAW filter Change the board LGE Internal Use Only - 90 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 91: Checking Gsm Block

    1. Check TCXO Block . Check Tx Module 3. Check RF TRX Level 4. Ro-download SW & Cal. LGE Internal Use Only - 91 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 92 4. TROUBLE SHOOTING LGE Internal Use Only - 9 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 93 4.6.1 Checking TCXO Block Refer to 1.3 4.6.2 Checking Tx module Block Refer to 1.4 4.6.3 Checking RF TX level LGE Internal Use Only - 93 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 94 PGND11 0603 C1043 PGND10 C1106 C1042 C1045 C1046 C1049 ANT_SEL3 ANT_SEL2 ANT_SEL0 ANT_SEL1 Schematic of GSM/DCS/PCS Tx Block LGE Internal Use Only - 94 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 95 If DCS/PCS(TP3) over 6 dBm? No Problem Check RTR & PAD Check soldering and components Still exist Problem Change the board LGE Internal Use Only - 95 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 96: Checking Rf Rx Block

    4. TROUBLE SHOOTING 4.6.4 Checking RF Rx Block LGE Internal Use Only - 96 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 97 GND2 GND4 RX_PCS_M PGND10 6.8n 1842.5MHz,1960MHz PCS(1930-1990 MHz) L1013 L1012 C1052 RX_PCS_P 6.8n Schematic of GSM/DCS/PCS Rx Block LGE Internal Use Only - 97 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 98 Check TP1 Signal exist? Check RF Switch (M/S) Check TP Signal exist? Check FEM Block Refer 1.4 Change the board LGE Internal Use Only - 98 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 99: Gps/Wifi/Bt Rf Component

    ANTENNA PAD ANT1003 connected to Carrier type antenna ANT1002 GND PAD FL1006 GPS SAW FILTER U1003 GPS LNA LGE Internal Use Only - 99 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 100 FL200 WiFi / BT Filter U200 SP3T + LNA for WiFi / BT U500 WiFi / BT chip LGE Internal Use Only - 100 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 101: Gps/Wifi/Bt Signal Path

    4. TROUBLE SHOOTING 4.8 GPS/WIFI/BT SIGNAL PATH GPS Signal PATH (main board bottom) GPS Rx PATH LGE Internal Use Only - 101 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 102 4. TROUBLE SHOOTING BT Tx WiFi Tx WiFi / BT Signal PATH WiFi / BT Tx and Rx PATH LGE Internal Use Only - 10 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 103: Gps/Wifi/Bt Trouble Shooting

    Check TP1 About .7V? Check power LRC filter soldering Check TP About .6V? Check SW and NV item Change the board LGE Internal Use Only - 103 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 104 1. Check the Power . Check the Clock 3. Check the SP3T+LNA 4. Check the WiFi/BT chip Component Change LGE Internal Use Only - 104 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 105 C_BT TX_IN U200 TX_BT GND1 GND3 GND2 C222 L205 2.2n C225 C227 0.1u 0.1u [Figure] Schematic of WiFi/BT/FM LGE Internal Use Only - 105 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 106 WiFi/BT chip check UART OK? SDIO OK? WiFi / BT chip check UART OK? Board change Board change LGE Internal Use Only - 106 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 107 LDO for TCXO VDD_TCXO +VPWR X200 38.4MHz KT3225L38400UCW28TA0 U202 GND1 C246 100p VDD_TCXO VOUT CLK_IN GND2 CLK_REQ STBY C247 C248 LGE Internal Use Only - 107 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 108 6. You can select wanted test cases after getting an optimized power 7. Blue tooth On/Off - Menu Key settings Wireless controls Bluetooth Turn on/Turn off LGE Internal Use Only - 108 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 109: Power On Troubleshooting

    Change the Main board TP6, TP7 power up? is clock OK? Change the Main board TP8: 19.M/TP10:3.768kHz Redownload SW image LGE Internal Use Only - 109 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 110 4. TROUBLE SHOOTING KB800 R814 PM_ON_SW 100K VA801 TP1 : KPD_PWR_N go to low TP1: KPD_PWR_N go to low LGE Internal Use Only - 110 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 111 Clesed to TCXO 19.2MHz KT3225L19200DCW28RA0 FFA Rev.C(220Ohm@100MHz) 1.0T R319 VREG_MSMA_2.6V C310 0.1u TCXO_EN R310 U301 USBH_SYSCLK C320 330p R311 100K LGE Internal Use Only - 111 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 112 4. TROUBLE SHOOTING TP10 LGE Internal Use Only - 11 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 113: Charging Trouble Shooting

    - Charging current path(NUS5530MIN) - Check the OVP Circuit - Battery - Check the charging current Path - Check the battery LGE Internal Use Only - 113 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 114 After turning on TP Check PMIC SMT status by X-ray Exchange TP1 or Change the main board and Retest LGE Internal Use Only - 114 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 115 SC500 OVLO U503 MAX14528 OUT2 GND1 GND2 CN501 OUT1 EUSY0374601 FL500 C561 C562 USB_DM USB_DP USB_ID ZD502 C564 LGE Internal Use Only - 115 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 116 4. TROUBLE SHOOTING LGE Internal Use Only - 116 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 117: Ff Camera Trouble

    Check the EMI Filter(FL601, FL60) Change the camera Change the Filter(FL601, FL60) Camera is OK Change the Main board LGE Internal Use Only - 117 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 118 7.5pF FL707 SFEY0011401 CAM_PCLK CAM_PCLK_F INOUT_A1 INOUT_B1 INOUT_A2 INOUT_B2 CAM_VSYNC CAM_VSYNC_F INOUT_A3 INOUT_B3 CAM_HSYNC CAM_HSYNC_F INOUT_A4 INOUT_B4 7.5pF LGE Internal Use Only - 118 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 119 CAM_DATA[3]_F CAM_HSYNC_F CAM_DATA[2]_F CAM_MCLK CAM_DATA[1]_F CAM_DATA[0]_F R706 CAM_PCLK_F CAM_RESET_N CAM_PWDN C712 C713 C714 2.2u 2.2u 4.7u C715 ENBY0034201 LGE Internal Use Only - 119 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 120: Audio Trouble

    TP1(R607) and TP(R608)? or Change the Main board The Sine wave appear at Change the U600 TP3(FB601), TP4(FB60)? LGE Internal Use Only - 10 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 121 LINE_OP EAR_L IN2+ C613 LINE_ON EAR_R IN2- AUDIO_I2C_SDA C614 AUDIO_I2C_SCL 2.2u R609 R610 VREG_MSMP_2.6V TP1, TP2 TP3, TP4 LGE Internal Use Only - 11 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 122 Re-solder at TP3 and TP4 TP3(FB603) and TP4(FB604)? or Change U600 Can you hear the tone Check the 3.5pi Earjack or sound? LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 123 TP602 ENJE0008001 R629 HOOK_ADC C617 C618 C637 C615 C616 L600 C619 270n EAR_SENSE STATE LOW(DEFAULT) UNMATING HIGH MATING LGE Internal Use Only - 13 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 124 4. TROUBLE SHOOTING TP1, TP2 J600 TP3, TP4 LGE Internal Use Only - 14 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 125 TP1(C61) and TP(C613)? or Change the Main board The Sine wave appear at Change the U600 TP3(FB601), TP4(FB60)? LGE Internal Use Only - 15 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 126 EAR_L IN2+ C613 LINE_ON EAR_R IN2- TP1,2 AUDIO_I2C_SDA C614 AUDIO_I2C_SCL 2.2u R609 R610 VREG_MSMP_2.6V TP3, TP4 TP1, TP2 LGE Internal Use Only - 16 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 127 Re-solder at TP1 TP1(FB600)? or Change the Main MIC The signal appear at Change the Main B’d TP(C315)? ’ LGE Internal Use Only - 17 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 128 4. TROUBLE SHOOTING MIC600 MIC_BIAS MIC_1N FB600 1800 MIC_1P C601 GND|MIC_1N (MIC_1N) D301 LGE Internal Use Only - 18 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 129 4. TROUBLE SHOOTING MIC60 LGE Internal Use Only - 19 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 130 Check the J600 The signal appear at Check the TP TP(C317)? or Change the Main B’d ’ LGE Internal Use Only - 130 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 131 4. TROUBLE SHOOTING Q600 LGE Internal Use Only - 131 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 132: Main Lcd Trouble

    LCD display OK? Check Power Change the LCD module VREG_LCD_1.8V(TP1) VREG_LCD_.8V(TP) Change the Main board The LCD works LGE Internal Use Only - 13 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 133 EBI2_DATA[13] INOUT_A3 INOUT_B3 EBI2_DATA[14] INOUT_A2 INOUT_B2 EBI2_DATA[15] INOUT_A1 INOUT_B1 C710 FL704 ICVE10184E150R101FR Maker Maker ID TOVIS TP1(LCD_2.8V) TP2(LCD_1.8V) LGE Internal Use Only - 133 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 134: Motion Sensor On/Off Trouble

    TP3, TP4 check Change the Motion senser U603 Work well? Change the Main Board Measurement VREG_MOTION_3.0V(TP1) MOTION_INT(TP2) MOTION_I2C_SDA(TP3) MOTION_I2C_ SCL(TP4) LGE Internal Use Only - 134 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 135 0.1u U603 R619 R620 GND3 VDD_IO GND2 TP600 INT1 MOTION_INT RESERVED1 SCL_SPC MOTION_I2C_SCL INT2 GND1 MOTION_I2C_SDA TP2 (TP600) LGE Internal Use Only - 135 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 136: Compass Sensor On/Off Trouble

    TP3, TP4 check Change the Motion senser U604 Work well? Change the Main Board Measurement VREG_MOTION_3.0V(TP1) COMPASS_DRDY(TP2) PROX_COMPASS_I2C_SCL(TP3) PROX_COMPASS_I2C_SDA(TP4) LGE Internal Use Only - 136 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 137 VREG_MOTION_3.0V VREG_MSMP_2.6V C627 C628 470n R617 R618 2.2K 2.2K U604 COMPASS_I2C_SCL COMPASS_I2C_SDA TP601 DRDY COMPASS_DRDY ADDR TP2 (TP601) LGE Internal Use Only - 137 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 138: Q Coin Motor

    Check an U60 SMT status by X-ray, Exchange it TP4 is working? Check SW Measurement VREG_MOTOR_3.3V(TP1) MOTOR_P(TP) / MOTOR_N(TP3) LIN_PWM_FREQ(TP4) Measurement VREG_MOTOR_3.3V(TP1) MOTOR_P(TP2) / MOTOR_N(TP3) LIN_PWM_FREQ(TP4) LGE Internal Use Only - 138 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 139 MOTOR_N 4.7K L602 MOTOR_N R625 1.2n Q601 VA604 VA605 LIN_PWM_FREQ R627 100K R626 C635 C633 C634 0.1u 0.1u LGE Internal Use Only - 139 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 140: Download

    LGE Internal Use Only - 164 - - 140 - Copyright © 2010 LG Electronics. Inc. All right reserved. Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes Only for training and service purposes...
  • Page 141 5. DOWNLOAD 5. DOWNLOAD LG-P350 LG-P350 LG-P350 Copyright © 2010 LG Electronics. Inc. All right reserved. - 165 - LGE Internal Use Only LGE Internal Use Only - 141 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 142 LGE Internal Use Only - 166 - - 14 - Copyright © 2010 LG Electronics. Inc. All right reserved. Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes Only for training and service purposes...
  • Page 143 5. DOWNLOAD 5. DOWNLOAD LG-P350 LG-P350 LG-P350 Copyright © 2010 LG Electronics. Inc. All right reserved. - 167 - LGE Internal Use Only LGE Internal Use Only - 143 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 144 LGE Internal Use Only - 168 - - 144 - Copyright © 2010 LG Electronics. Inc. All right reserved. Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes Only for training and service purposes...
  • Page 145 5. DOWNLOAD 5. DOWNLOAD Copyright © 2010 LG Electronics. Inc. All right reserved. - 169 - LGE Internal Use Only LGE Internal Use Only - 145 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 146 LGE Internal Use Only - 170 - - 146 - Copyright © 2010 LG Electronics. Inc. All right reserved. Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes Only for training and service purposes...
  • Page 147 5. DOWNLOAD 5. DOWNLOAD Copyright © 2010 LG Electronics. Inc. All right reserved. - 171 - LGE Internal Use Only LGE Internal Use Only - 147 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 148 LGE Internal Use Only - 172 - - 148 - Copyright © 2010 LG Electronics. Inc. All right reserved. Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes Only for training and service purposes...
  • Page 149 5. DOWNLOAD 5. DOWNLOAD Copyright © 2010 LG Electronics. Inc. All right reserved. - 173 - LGE Internal Use Only LGE Internal Use Only - 149 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 150 LGE Internal Use Only - 174 - - 150 - Copyright © 2010 LG Electronics. Inc. All right reserved. Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes Only for training and service purposes...
  • Page 151 LG-P350 LG-P350 LG-P350 LG-P350 LG-P350 LG-P350 LG-P350 Copyright © 2010 LG Electronics. Inc. All right reserved. - 175 - LGE Internal Use Only LGE Internal Use Only - 151 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 152 LGE Internal Use Only - 176 - - 15 - Copyright © 2010 LG Electronics. Inc. All right reserved. Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes Only for training and service purposes...

  • Page 153: Block Diagram

    MPP3,4 USBPHY MUIC PON_RESET_N (TS5USBA) JTAG_PS_HOLD USBH DM & DP REMOTE_PWR_ON nJTAG_RESOUT JTAG CONN. Array TP JTAG(TCK,TDI,TDO…) UART3_TX/RX LGE Internal Use Only - 153 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 154 6. BLOCK DIAGRAM P350 RF Block Diagram LGE Internal Use Only - 154 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 155 6. BLOCK DIAGRAM LGE Internal Use Only - 155 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 156 BT_PCM_CLK BT_WAKEUP GPIO42 BT_GPIO_0 38 4MHz 38.4MHz BT HOST WAKEUP BT_HOST_WAKEUP CLK IN CLK_IN GPIO83 BT_GPIO_1 OSCIN TCXO LGE Internal Use Only - 156 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 157 6. BLOCK DIAGRAM WIFI&FM&BT BT_PCM_IN BT_PCM_OUT BT_PCM_SYNC BCM43291 FM_ANT BT_PCM_CLK FM_R FM_L MICBIAS MSM7227 FM ANT AUDIO SUBSYSTEM TPA2055D3 LGE Internal Use Only - 157 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 158: Circuit Diagram

    U1003 L1038 RX_WCDMA_2100 0603 8.2n SDMY0001901 C1104 L1039 Band 1 BAND 1/2 1950MHz, 2140MHz BAND1(2520):SAYP1G95AA0B00 BAND2(2520) : ACMD-7407 LGE Internal Use Only - 158 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 159 GND1 WL_RST_N WLAN_RESET_N OSCIN VOUT VDD_TCXO C246 100p CLK_IN CLK_IN GND2 OSCOUT CLK_REQ STBY XTAL_PU CLK_REQ C247 C248 LGE Internal Use Only - 159 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 160 BT_HOST_WAKEUP VCHAR EBI2_DATA[15] GPIO_84 REMOTE_PWR_ON EBI2_DATA_15 TP302 ON_SW ON_SW UART_TX VBAT VBAT TP303 REMOTE_PWR_ON URXD UTXD C327 C328 LGE Internal Use Only - 160 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 161 + clk1 Should be NC 4G/4G Cap for MSM7227 Power R404 SDRAM_CKE1 SDRAM_CKE1_4G R405 nSDRAM_CS1 SDRAM_CS1_N_4G VREG_MSMC1_1.25V VREG_MSMC2_1.25V VREG_MSME_1.8V VREG_MSMA_2.6V VREG_MSMP_2.6V LGE Internal Use Only - 161 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 162 AUDIO_L 2.2K AUDIO_R EUSY0372001 4.7K TS5USBA33402YZPR R531 MUIC_INT _INT MUIC_I2C_SDA CLDO MUIC_I2C_SCL C569 4.7K 2.2K 2.2K VREG_MSMP_2.6V TP503 LGE Internal Use Only - 162 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 163 COMPASS_DRDY R626 R627 100K RESERVED1 SCL_SPC MOTION_I2C_SCL ADDR INT2 GND1 C633 C635 C634 0.1u 0.1u MOTION_I2C_SDA OJ600 OJ601 LGE Internal Use Only - 163 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 164 4.7u CAM_PCLK INOUT_A1 INOUT_B1 CAM_PCLK_F C715 ENBY0034201 INOUT_A2 INOUT_B2 CAM_VSYNC INOUT_A3 INOUT_B3 CAM_VSYNC_F CAM_HSYNC CAM_HSYNC_F INOUT_A4 INOUT_B4 7.5pF LGE Internal Use Only - 164 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 165 PM_ON_SW VOL_DOWN 100K ZD800 ZD801 ZD802 R816 KEY_COL[1] ZD803 ZD805 VA801 COL[0] COL[1] ROW[0] SEND ROW[1] VOL_UP VOL_DOWN LGE Internal Use Only - 165 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 166: Bga Pin Map

    8. BGA PIN MAP 8. BGA PIN MAP 8. BGA PIN MAP LGE Internal Use Only - 166 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 167 8. BGA PIN MAP MSM7227 LGE Internal Use Only - 167 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 168 8. BGA PIN MAP RTR6285(Top View) LGE Internal Use Only - 168 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 169 8. BGA PIN MAP PM7540(PMIC) LGE Internal Use Only - 169 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 170: Pcb Layout

    LD800 KB801 KB800 MIC600 : Microphone - no far-end voice FB600 C601 - no voice recording MIC600 LG-P350_MAIN_SPFY0246001_1.1_TOP LGE Internal Use Only - 170 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 171 U604 : Compass Sensor CN500 : Battery Conn. -Can not detect direction CN500 - no power On SW1000 U604 LG-P350_MAIN_SPFY0246001_1.1_BOT LGE Internal Use Only - 171 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 172: Calibration

    10. CALIBRATION 1. CALIBRATION 10.1 General Description This document describes how to install and use the RF calibration software(Tachyon) of LG 3G mobile phone with Qualcomm Chipsets. 10.2 Requirement Requirements for RF calibration of LGE mobile phone are outlined in the following sections.

  • Page 173: Setup For Rf Calibration

    2) Unzip Tachyon_Release_20101101.zip, and overwrite all files to the same path. 3) Install OCX_Registration.bat for registering Tachyon Components in C:/LGE/Tachyon/OCX/ directory. LGE Internal Use Only - 173 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 174: Tachyon Start

    RF calibration or Auto Test can be start in the following procedure. 1) Execute Tachyon.exe in C:/LGE/Tachyon directory. 2) Click login button in the following login dialog window. LGE Internal Use Only - 174 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 175 3)Click “model selection” button in toolbar for selecting the appropriate model. 4) double click P350/ORF in model tree, and then click ”select” button. LGE Internal Use Only - 175 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 176 10. CALIBRATION 5) Click “system option” button in toolbar to connect the mobile phone to the Tachyon. LGE Internal Use Only - 176 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 177 6) Click “run option” button in toolbar for passing over LGE factory setting. 7) Check “PID write” and “Skip previously Phone PID check” LGE Internal Use Only - 177 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 178 9) Click “Calibration+Auto Test” button in Toolbar. Now RF calibration and autotest will start. For more information, refer to the manual in C:/LGE/Tachyon/Manual folder. LGE Internal Use Only - 178 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 179: Overview Of Rf Calibration

    Rx Gain Range Calibration 8 or 16 channel Rx Gain measurements For more information, refer to RTR6285-RTR6280-RTR6237-RGR1100-MXU6219_NV_ITEMS RevD.pdf (80-VD861-12 Rev. D) LGE Internal Use Only - 179 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 180 LNA Calibration Power(dBm) Range 0-1 -66.0 -68.0 Range 1-2 -42.0 -50.0 Range 2-3 -26.0 -38.0 Range 3-4 -26.0 LGE Internal Use Only - 180 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 181 1100/1700 Tx External Polar 13025,1900,1950,2000,2050,2100,2150,2200,2250,2300,2350,2400,2450,2500,2550,2 calibration 600,2650,2700,2750,2800,2850,2900,2950,3000,3075,3150,3225,3300,3375,3450,352 5,3600,3675,3750,3825,3900,3975,4050,4125,4200,4275,4350,4425,4500,4575,4650, PDM table 4725,4800,4875,4950,5025,5100,5175,5250,5325,5400,5475,5550,5625,5700,5775,58 50,5925,6025,6125,6225,6325,6425,6525,6625,6725,6825,6925,7025,7125,7225,7325 ,7425,7525,7625,7725,7825,7925,8025,8125,8225,8325,8425,8525,8625,8725,8825,8 925,9025,9125,9225,9325,9425,9525,9625,9725,9825,9925,10025,10125,10225,1032 5,10425,10525,10625,10725,10825,10925,11025,11125,11225,11375,11525,11675,11 825,11975,12125,12275,12425,12575,12725,12875,13025,13175,13325,13475,13625, 13775,13925,14075,14225,14375,14525,14675,14825,14975,15125,15275,15425,155 75,15725,15875,16025,16175,16300 LGE Internal Use Only - 181 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 182 23 3 GSM900 12 4 97 5 10 00 10 23 Table 1-7 Channel of GSM/1800/GSM1900 GSM1800 GSM1900 LGE Internal Use Only - 18 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 183: Stand Alone Test

    Start shortcut keys: 3845#*350# Hidden Menu List Start the desired menu: Menu, click Version Info Classified Information representation LGE Internal Use Only - 183 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 184 Auto All Test Result Auto All Test Result -> From the factory with the ability to view the results screen LGE Internal Use Only - 184 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 185 - Black Display - Red,Green, Blue, White Display - Red,Green, Blue, White Display  Vibrator test A case-by-state vibration tests LGE Internal Use Only - 185 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 186 Loop Back test : Mic & Speak loop Back test Audio CAL Tool : Setting -> Ring menyujung Enabled RTC test Date & time : setting LGE Internal Use Only - 186 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 187 External Memory Test SD Card test -> Write a test check of the SD Card memory LGE Internal Use Only - 187 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 188 Search key : Check Recognition Compass test GPS Test GPS test : GPS check recognition ELT Test Automatic Mode Manual Mode LGE Internal Use Only - 188 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 189 LCD Backlight Ringtone Vibrator Camera Audio Loopback -> test on the device is working (The ability to use plant) LGE Internal Use Only - 189 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 190: Exploded View & Replacement Part List

    Can Assembly,Shield ADB00 Dome Assembly,Metal MAZ00 Bracket MAZ01 Bracket SUMY00 Microphone,Condenser ACQ02 Cover Assembly,Battery SBPL01 Rechargeable Battery,Lithium Ion LGE Internal Use Only - 190 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 191: Replacement Parts

    Front COMPLEX LGP350.APRTZY ZZ:Without Color MDJ000001 Filter MDJ63008601 FILTER_SPEAKER [SK4350 + PSR0.3T + SK4350 + 250MESH + SK4350] LGE Internal Use Only - 191 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 192 MCQ009400 Damper, Camera MCQ66498201 COMPLEX LGP350.APRTZY ZZ:Without Color - MCQ049800 Damper, Motor MCQ66498301 COMPLEX LGP350.APRTZY ZZ:Without Color - LGE Internal Use Only - 19 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 193 COMPLEX C2000 CGRSV WA:White C2000 USASV MEZ000900 Label, After Service MLAB0001102 DIA 4.0 PRINTING, COMPLEX LGP350.APRTZY ZZ:Without Color MEV000000 Insulator MEV63756401 insulator_can_shield LGE Internal Use Only - 193 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 194 Bag, Vinyl MBAD0005204 COMPLEX LG-LX260 SPRAG ZZ:Without Color - MBEE00 Box, Master MBEE0061001 COMPLEX GD510 CZESV ZZ:Without Color - LGE Internal Use Only - 194 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 195 COMPLEX LG-P350 PRT SV:Silver MOLD, PC LUPOY MCK000000 Cover MCJZ0066801 SC-1004A, COMPLEX LGP350.APRTZY ZZ:Without Color MJN061100 Tape, Protect MJN67753701 battery_cover LGE Internal Use Only - 195 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 196 1005GC2T2N7SLF 2.7NH 0.3NH - 300mA 0.17OHM Inductor, Multilayer, C1001 ELCH0004708 5.5GHZ 8 SHIELD NONE 1.0X0.5X0.5MM R/TP Chip PILKOR ELECTRONICS LTD. LGE Internal Use Only - 196 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 197 0603 R/TP - MURATA MANUFACTURING CO., LTD. C502, C517, C518, C521, C522, C523, C524, C529, C608, C609, C615, C616, C618 LGE Internal Use Only - 197 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 198 55TO+85C 0603 R/TP - TDK CORPORATION C225, C227, C241, C301, C304, C310, C312, C314, C315, C316, C317, C318, C319, C324, C400, C401 LGE Internal Use Only - 198 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 199 R303, R317, MCR006YZPJ101 100OHM 5% 1/20W 0603 R/TP - R318, Resistor, Chip ERHY0009503 ROHM. R702, R810, R811, R813 LGE Internal Use Only - 199 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 200 C707, C708, C709, C711, C712, C713 MCR006YZPJ224 220KOHM 5% 1/20W 0603 R/TP - R800 Resistor, Chip ERHY0009518 ROHM. LGE Internal Use Only - 00 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 201 CL05A475MQ5NRNC 4.7uF 20% 6.3V X5R -55TO+85C Capacitor, C203, ECCH0017601 1005 R/TP 0.5MM SAMSUNG ELECTRO- Ceramic, Chip C229, MECHANICS CO., LTD. C230, C714 LGE Internal Use Only - 01 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 202 Capacitor, C0603X7R1H331KT00NN 330pF 10% 50V X7R - ECCH0009109 C309, Ceramic, Chip 55TO+125C 0603 R/TP - TDK CORPORATION C320 LGE Internal Use Only - 0 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 203 1005GC2T2N2SLF 2.2NH 0.3NH - 300mA 0.16OHM Inductor, Multilayer, C1105 ELCH0004721 6GHZ 8 SHIELD NONE 1.0X0.5X0.5MM R/TP PILKOR Chip ELECTRONICS LTD. LGE Internal Use Only - 03 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 204 Dual PAM B1+8. Coupler Integrated, LGA, R/TP, U1002 IC, Power Amplifier SMPY0020101 AVAGO TECHNOLOGIES INTERNATIONAL SALES PTE. LIMITED LGE Internal Use Only - 04 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 205 1005GC2T18NJLF 18NH 5% - 200mA 0.65OHM Inductor, Multilayer, L1004, ELCH0004714 1.6GHZ 8 SHIELD NONE 1.0X0.5X0.5MM R/TP Chip L1007 PILKOR ELECTRONICS LTD. LGE Internal Use Only - 05 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 206 LQG15HSR10J02D 100NH 5% - 150mA 1.25OHM Inductor, Multilayer, L207 ELCH0003842 600MHZ 8 SHIELD NONE 1.0X0.5X0.5MM R/TP Chip MURATA MANUFACTURING CO., LTD. LGE Internal Use Only - 06 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 207 C1608X5R0J475KT000N 4.7uF 10% 6.3V X5R - C528, ECCH0006201 Ceramic, Chip 55TO+85C 1608 R/TP - TDK CORPORATION C541, C542 LGE Internal Use Only - 07 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 208 EMT3 R/TP 3P ROHM Semiconductor KOREA CORPORATION AAT2862 AAT2862, TQFN34, 24, R/TP, 3x4x0.8 U700 IC, Sub PMIC EUSY0378001 Advanced Analogic Technologies HK Limited LGE Internal Use Only - 08 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 209 Resistor, Chip ERHY0009505 ROHM. R611, R612 MCR01MZP5J5R1 5.1OHM 5% 1/16W 1005 R/TP - R1011, R1012 Resistor, Chip ERHZ0003801 ROHM. LGE Internal Use Only - 09 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 210 8 SHIELD NONE 1.0X0.5X0.5MM R/TP PILKOR Chip ELECTRONICS LTD. MCR01MZP5J4R7 4.7OHM 5% 1/16W 1005 R/TP - R500 Resistor, Chip ERHZ0000488 ROHM. LGE Internal Use Only - 10 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 211 Inductor, Multilayer, LL1005-FHL6N8J 6.8NH 5% - 300mA 0.23OHM 5.6GHZ L1015 ELCH0001408 Chip 9 SHIELD NONE 1.0X0.5X0.5MM R/TP TOKO, INC. LGE Internal Use Only - 11 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 212 IC, Flip Flop EUSY0408201 6P - STC CORP. MCR006YZPJ470 47OHM 5% 1/20W 0603 R/TP - R630 Resistor, Chip ERHY0009524 ROHM. LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 213 ERHZ0000439 ROHM. GB042-24S-H10-E3000 24P 0.40MM STRAIGHT CN702 Connector, BtoB ENBY0034201 SOCKET SMD R/TP 1M - LS Mtron Ltd. LGE Internal Use Only - 13 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 214 C1005X5R1A105KT000F 1uF 10% 10V X5R - C313, ECZH0001215 Ceramic, Chip 55TO+85C 1005 R/TP - TDK KOREA COOPERATION C545, C546, C548, C566, C571, C805 LGE Internal Use Only - 14 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 215 EMB-LGE004MSKB 3mW 16OHM 115DB EAB010200 Earphone, Stereo SGEY0003744 85HZTO126HZ 1M BLACK 3.5 L TYPE STEREO 4POLE PLUG - CRESYN CO., LTD LGE Internal Use Only - 15 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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