LG -S310 Service Manual
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LG -S310 Service Manual

LG -S310 Service Manual

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Internal Use Only
Service Manual
LG-S310
Date: December, 2010 / Issue 1.1

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Summary of Contents for LG LG-S310

  • Page 1 Internal Use Only Service Manual LG-S310 Date: December, 2010 / Issue 1.1...

  • Page 2: Table Of Contents

    4.4 USB Trouble ..................65 4.5 SIM Detect Trouble...............68 4.6 Key Sense Trouble ................70 4.7 Keypad Backlight Trouble ............7 -  - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 3 - 4 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 4: Introduction

    A local telephone company may make changes in its communications facilities or procedure. If these changes could reasonably be expected to affect the use of the LG-S310 or compatibility with the net work, the telephone company is required to give advanced written notice to the user, allowing the user to take appropriate steps to maintain telephone service.
  • Page 5 The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly different. G. Interference and Attenuation LG-S310 may interfere with sensitive laboratory equipment, medical equipment, etc. Interference from unsuppressed engines or electric motors may cause problems.

  • Page 6: Abbreviations

    Light Emitting Diode LG Electronics OPLL Offset Phase Locked Loop Power Amplifier Module Printed Circuit Board Programmable Gain Amplifier - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 7: Only For Training And Service Purposes

    Voltage Controlled Oscillator VCTCXO Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol 8PSK 8 Phase Shift Keying - 8 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 8: Performance

    Over 3hours@GSM Tx Level 5 FEATURES Wired + Wireless(w/o india ) Facebook,Twitter,China Local Messaging SMS, MMS, E-Mail Web Brower WAP 2.0 - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 9: Rf Spec

    Intermodulation rejection – Speech ± 800kHz, ± 1600kHz : -98dBm/-96dBm (2.439%) channels Timing Advance ± 0.5T - 10 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 10: Technical Brief

    3. TECHNICAL BRIEF 3.1 General Description The LG-S310 supports GSM850, GSM-900, GSM-1800, and GSM-1900 based GSM/GPRS/EDGE. RF Transceiver(AD6546) is a fully integrated Quad band GSM Transceiver with an advanced modulator design that fully supports 8-PSK EDGE modulation format. The AD6546 contains a translation loop modulator for directly modulating baseband signals onto an integrated Tx VCO.

  • Page 11: Gsm Part

    3.2 GSM Part 3.2.1 GSM Receiver The LG-S310 receiver section fully integrates all the RF and baseband signal processing. Each block is described in the following sections. [Figure 4.2.1-1] GSM Receiver Path Low Noise Amplifiers The LNAs have differential inputs which help minimize the effect of unwanted interferers.

  • Page 12: Only For Training And Service Purposes

    EDGE and GSM modes. - 1 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes [Figure 3.2.1-2] Receiver Baseband Section...

  • Page 13: Only For Training And Service Purposes

    The one-off calibration is triggered over the serial bus upon initialization and then a fully automatic offset tracking loop is enabled to minimize residual offsets during operation. - 14 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 14: Only For Training And Service Purposes

    TX VCO The Transmit Voltage Controlled Oscillator (TX VCO) and tank components are a fully integrated subsystem. - 15 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes The subsystem includes PA drivers so the outputs are used to directly drive the external PAs. In Low band...

  • Page 15: Only For Training And Service Purposes

    GMSK mode the reference detector circuit is powered down, but the RAMP input remains active meaning no external circuitry or switching is required for PA control in ether mode. - 16 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 16: Only For Training And Service Purposes

    The SKY77336 also contains band-select switching circuitry to select GSM (logic 0) or DCS/PCS (logic 1) as determined from the Band Select (BS) signal. See Figure shown below. [Figure 3.2.3-1] PAM functional Block diagram - 17 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 17: Only For Training And Service Purposes

    GSM900RX1 RF_ANT_SW1 GSM850RX2 GSM850RX1 C124 C125 100p 100p SW101 ANT_FEED C129 100p L102 100n [Figure 3.2.4-1] FEM schematic - 18 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 18: Functional Block Diagram

    3. TECHNICAL BRIEF 3.3 Functional Block Diagram - 19 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 19: Baseband Processor Introductions

    Timing Generator: generates the control signals related to the TDMA frame timing; and, Power, Reset and Clock Subsystem: manages the power, reset, and clock distribution inside MT6235. - 20 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 20: Only For Training And Service Purposes

    3. TECHNICAL BRIEF 3.4.2 Block Description - 21 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 21: Only For Training And Service Purposes

    Auxiliary ADC input 3 External ADC Channel (internal) Auxiliary ADC_4 ISENSE(Fix) (internal) Auxiliary ADC_5 BATSENSE(Fix) (internal) Auxiliary ADC_6 CHRIN(Fix) - 22 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 22: Only For Training And Service Purposes

    UTXD2 VDD33 UART 2 transmit data URXD3 VDD33 UART 3 receive data UTXD3 VDD33 UART 3 transmit data - 2 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 23: Only For Training And Service Purposes

    LSA0 VDD33_LCD GPIO25 LSA0 IRQ1 address output GPIO26 AD12 LSDA VDD33_LCD Serial display interface LSDA CLKM1 TDTIRQ PU/P - 24 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 24: Only For Training And Service Purposes

    External TCXO enable SRCLKE PU/P AD11 VDD33 GPIO43 input KCOL7 VDD33 Keypad column 7 GPIO55 KCOL7 IRDA_P PU/P - 25 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 25: Only For Training And Service Purposes

    MC0DA PU/P MCDA3 VDD33_MC SD Serial Data IO 3 GPIO71 MCCK VDD33_MC SD Serial Clock/MS GPIO72 MC0CK PU/P - 26 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 26: Only For Training And Service Purposes

    CMRST VDD33_CAM GPIO0 CMRST CLKM0 signal output CMOS sensor power CMPD DSP_G PU/P GPIO1 CMPDN VDD33_CAM down control - 27 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 27: Only For Training And Service Purposes

    1 CMOS sensor data CMDAT D2_TID PU/P CMDAT0 VDD33_CAM GPIO13 input 0 CMFLAS CMFLA D2_TID PU/P GPIO14 VDD33_CAM - 28 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 28: Only For Training And Service Purposes

    13/26MHz Reference 2.8/3.0 Memory Card of Bluetooth VUSB VCAM_A 1.5/1.8/2.5/2.8 4.7u Analog Camera Power VCAM_D 1.3/1.5/1.8/2.8 Digital Camera Power - 29 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 29: Only For Training And Service Purposes

    BATSENSE TP203 SRST SIM_CLK SCLK2 SIM_RST_N SRTS2 SIM_DATA SIO2 VSIM_PWR VSIM2 C239 RST_N RESET [Figure 3.4.6-1] Circuit Diagram - 0 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 30: Charging Control

    VA400 VBAT 0.1u CN400 ZD400 C403 C404 C405 100u [Figure 3.5-1] Circuit Diagram [Figure 3.5-2] Battery discharging voltage - 1 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 31: Only For Training And Service Purposes

    : standard charging (up to 4.2 V) c. 60 ~ : low charging voltage operation (3.6V ~ 3.8V) - 2 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 32: Power On/Off

    VMSEL TP201 GATEDRV CHRIN 3.6.2 detect Charger Power is ON when Charger with specific resistor value(130KΩ or 56KΩ) -  - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 33: Sim Interface

    C239 RST_N RESET VSIM_PWR C301 C302 C304 4.7K R306 SIM_RST_N ICVL0518050FR VA307 SIM_CLK SIM_DATA SIM+SD Combo Socket (ENSY0018601) - 4 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 34: Micro Sd Card Socket (Ensy0018601)

    The MicroSD Memory Module has eight exposed contacts on one side. The S-Gold3 is connected to the module using a dedicated eight-pin connector - 5 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 35: Only For Training And Service Purposes

    Data bit [3] Command response Power Power supply Clock Ground Power ground DAT0 Data bit [0] DAT1 Data bit [1] - 6 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 36: Memory

    NAND_LB_N VCCQ TP313 NAND_UB_N TP314 NAND_RE_N NAND_BSY_N R__B VSS5 TP315 NAND_WR_N VSS6 NAND_WP_N VSS7 [figure 3.9-1] Circuit Diagram - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 37: Only For Training And Service Purposes

    - Serial Access : 42ns(Min. TBD) • Fast Write Cycle Time - Page Program time : 250μs(Typ. TBD) - 8 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 38: Only For Training And Service Purposes

    -. Driver Strength (Full, 1/2, 1/4, 1/8, 3/4, 3/8, 5/8, 7/8) • DQM for masking. • Auto refresh. • 64ms refresh period (8K cycle). • Clock Stop capability. - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 39: Lcd Display

    3. TECHNICAL BRIEF 3.10 LCD Display [Figure 3.8-1] LCD Module Operation Block Diagram - 40 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 40: Only For Training And Service Purposes

    3. TECHNICAL BRIEF Pin Description - 41 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 41: Lcd Backlight Illumination

    LCD_LED_CA3 LCD_I2C_SDA LED3 LCD_I2C_SCL LED4 VBAT C602 R605 C603 100K 2.2u C604 C605 C606 [Figure 3.11-1] Circuit Diagram - 42 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 42: Only For Training And Service Purposes

    “1” indicates an ENABLE function. The data of third byte (C0 to C4) indicates a 32-steps setting of LDO1, LDO2 output voltage or the LED current of backlight. - 4 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 43: Only For Training And Service Purposes

    3. TECHNICAL BRIEF - 44 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 44: Keypad Switching & Scanning

    KEY_IN[4] SEND KB120 KEY_IN[5] L103 KEY_OUT[0] L104 KEY_OUT[1] L105 KEY_OUT[2] KEY_OUT[3] KEY_OUT[4] [Figure 3.12-2] Circuit Diagram (Key map) - 45 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 45: Keypad Backlight Illumination

    R105 R106 R107 C101 LD100 LD101 LD102 LD103 LD104 LD105 LD106 LD107 MAIN_KEY_BACKLIGHT VA100 [Figure 3.13-1] Circuit Diagram - 46 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 46: 14 U Usb Multimedia Interface Connector

    FM radio antenna FM_ANT FM radio antenna FM_ANT FM radio antenna FM_ANT FM radio antenna FM_ANT FM radio antenna - 47 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 47: Camera

    R609 CAM_PCLK C610 CAM_RST_N 7.5p CAM_PWDN C611 C612 C613 0.1u 0.1u 0.1u VA601 VA602 [Figure 3.15-1] Circuit Diagram - 48 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 48: Audio

    3. TECHNICAL BRIEF 3.16 Audio LG-S310 Audio Part Block diagram is below [Figure 3.16-2] Block Diagram - 49 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 49: Only For Training And Service Purposes

    1mV guarantees a pop/click-free headphone start up. [Figure 3.16.1-1] Block Diagram [Figure 3.16.1-1] Block Diagram - 50 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 50: Only For Training And Service Purposes

    C251 0.1u MIC_N AU_VINO_N HP_MIC_N AU_VIN1_N AU_VIN1_P HP_MIC_P RF_QP BDLAQP RF_QN BDLAQN AVDD28_GSMRFTX BDLAIN RF_IN BDLAIP RF_IP RF_TX_RAMP - 51 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 51: Only For Training And Service Purposes

    VMIC_BIAS_P L100 MIC_P L101 MIC_N SUMY0010610 UNIT,-42dB,4.72*3.76*1.25 SPM0410LR5H-QB MIC100 VMIC_BIAS_P KEY_OUT[0] KEY_OUT[1] KEY_OUT[2] KEY_OUT[3] KEY_OUT[4] MIC_P MIC_N VMIC_BIAS_N - 52 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 52: Only For Training And Service Purposes

    RCV_N RCV_SPK_OUT_N SPK501 AVDD_2V8 U500 C522 0.1u SPK_N DG2735DN-T1-E3 SPK_P RCV_SPK_P COM2 RCV_SPK_N COM1 AUD_RCV_SPK_SEL RCV_P EUSY0347001 RCV_N - 5 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 53: Only For Training And Service Purposes

    C524 120p GND2 GND1 C410 C411 0.1u CN401 ZD701 MUIC_IO_M MUIC_IO_P MUIC_ACC_ID C417 FM_ANT ZD401 L400 C418 270n - 54 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 54: Bluetooth/Fm (Wysbnbgx6)

    - Support for 802®.11 coexistence - Green (RoHS and no antimony or halogenated flame retardants) - On-chip balun - 55 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 55: Only For Training And Service Purposes

    PCM1_IN/SPI_MOSI BT_PCM_OUT PCM1_OUT/SPI_MISO BT_PCM_IN PCM1_SYNC/SPI_CS# BT_PCM_SYNC PCM1_CLK/SIP_CLK BT_PCM_CLK SPI_PCM#_SEL DSX321G-26M X700 26MHz C724 C723 [Figure 3.17-2] Circuit Diagram - 56 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 56: Only For Training And Service Purposes

    RSSI value, keeping the mixer input signal within a limited range. This improves the dynamic range of the receiver, so improving performance in interference limited environments. - 57 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 57: Only For Training And Service Purposes

    FM_LNA_EN turn on it while FM function is working without plugging Ear jack. - 58 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 58: Trouble Shooting

    - Connect mobile switch cable between Communication test set and DUT when you need to make a phone call. - Follow trouble shooting procedure - 59 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 59: Power On Trouble

    VUSB_3V3 VBT_2V8 VCAM_1V8 VCAM_2V8 R205 PWRKEY END_KEY TP206 ISENSE VMSEL TP201 GATEDRV CHRIN Figure 4.2.1 Power on trouble - 60 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 60 4. TROUBLE SHOOTING Checking Points and Flow - 61 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 61: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Figure 4.2.2 END KEY(TP2) High (before booting) & Low (booting) Figure 4.2.3 X-tal (TP7) Wave Form (32.768kHz) - 62 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 62: Charging Trouble

    EUSY0388501 BQ25040 PGND CN401 U402 ISET VSS1 VSS2 IFULL EN_SET MUIC_IO_M MUIC_IO_P MUIC_ACC_ID C417 Figure 4.3.1 Charging circuit - 6 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 63: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Checking Points and Flow CN401 FL400 U402 No. 10 pin VBAT(TP2) - 64 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 64: Usb Trouble

    GND1 U402 ISET VSS1 C410 VSS2 IFULL EN_SET 0.1u CN401 MUIC_IO_M MUIC_IO_P MUIC_ACC_ID C417 Figure 4.4.1 USB Circuit - 65 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 65: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Checking Point and Flow TP TP4 - 66 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 66: Only For Training And Service Purposes

    Change the U402 Output is about 5V? Is CN401 Output Is TP3(MUIC_IO_M), TP4(MUIC_IO_P) signal OK? Change the main board - 67 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 67: Sim Detect Trouble

    -SIM_RST_N (TP2), SIM_CLK (TP3), SIM_DATA (TP4) VSIM_PWR C301 C302 C304 4.7K R306 SIM_RST_N ICVL0518050FR VA307 SIM_CLK SIM_DATA Figure 4.5.1 SIM Circuit Checking Point - 68 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 68: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Checking Flow - 69 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 69: Key Sense Trouble

    SEND KB120 KEY_IN[5] L103 KEY_OUT[0] L104 TP11 KEY_OUT[1] L105 TP10 KEY_OUT[2] KEY_OUT[3] KEY_OUT[4] Figure 4.6.1 Key Sense Circuit - 70 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 70: Only For Training And Service Purposes

    KEY_IN and KEY_OUT of pressed Change the Main Board key are Pulse waveform? Change the Main Key FPCB and retest - 71 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 71: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Waveform KEY_IN KEY_OUT Figure 4.6.2 Before Key press Figure 4.6.3 While Key press, KEY_IN & KEY_OUT waveform - 72 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 72: Keypad Backlight Trouble

    R107 C101 LD100 LD101 LD102 LD103 LD104 LD105 LD106 LD107 MAIN_KEY_BACKLIGHT VA100 Figure 4.7.1 Keypad Backlight Trouble Circuit - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 73: Only For Training And Service Purposes

    4. TROUBLE SHOOTING Checking Point Checking Flow - 74 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 74: Micro Sd Trouble

    MSD_D[1] VSIM_PWR C300 C301 C302 C304 4.7K R306 SIM_RST_N ICVL0518050FR VA307 SIM_CLK SIM_DATA Figure 4.8.1 Micro SD Circuit - 75 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 75 4. TROUBLE SHOOTING Checking Point Checking Flow - 76 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 76 4. TROUBLE SHOOTING Waveform Figure 4.8.2 MSD_CLK Signal Waveform - 77 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 77: Audio Trouble

    AU_VIN1_P HP_MIC_P RF_QP BDLAQP BDLAQN RF_QN RF_IN AVDD28_GSMRFTX BDLAIN BDLAIP RF_IP RF_TX_RAMP Figure 4.9.1.3 Receiver circuit MTK Side - 78 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 78 4. TROUBLE SHOOTING Checking Flow Waveform Figure 5.9.1.5 sine waveform - 79 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 79: Speaker Trouble

    -Analog SW (U500) -RCP_SPK_P/N (TP5, TP6) SPK/RCV Dualmode Circuit SPK500 RCV_SPK_OUT_P RCV_SPK_OUT_N SPK501 Figure 4.9.2.1 Speaker pad contact check - 80 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 80 IN3- IN3+ CPVDD CPVSS C514 2.2u Figure 4.9.2.1 Speaker circuit check Sine Waveform Figure 4.9.2.2 speaker check point - 81 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 81 4. TROUBLE SHOOTING Flow chart - 82 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 82: Mic Trouble

    L101 MIC_N SUMY0010610 UNIT,-42dB,4.72*3.76*1.25 SPM0410LR5H-QB MIC100 Figure 4.9.3.1 FPCB MIC Check point Figure 4.9.3.2 FPCB MIC Check point - 8 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 83 VMIC_BIAS_P at TP1 2.8V? Change main BD Can you see a mic signal at TP2? Replace MIC100 Change the FPCB - 84 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 84 CPVDD CPVSS C514 2.2u C515 C516 AUD_I2C_SCL AUD_I2C_SDA 2.2u 2.2u 1V8_AMP Figure 4.9.4.1 Headset Circuit for sound Check - 85 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 85 4. TROUBLE SHOOTING Checking Points MUIC Waveform Sine Waveform - 86 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 86 4. TROUBLE SHOOTING Flow chart - 87 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 87 AU_VIN1_N AU_VIN1_P HP_MIC_P RF_QP BDLAQP RF_QN BDLAQN AVDD28_GSMRFTX BDLAIN RF_IN BDLAIP RF_IP RF_TX_RAMP Figure 4.9.5.2 MT6235 check point - 88 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 88 4. TROUBLE SHOOTING Figure 4.9.5.3 MUIC check point Figure 4.9.5.4 WM9093 check point - 89 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 89 4. TROUBLE SHOOTING Flow chart - 90 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 90 C524 120p MUIC_I2C_SDA MUIC_I2C_SCL C406 C407 C408 Figure 4.9.6.1 WM9093 check point Figure 5.9.6.2 Headset MIC check point - 91 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 91 4. TROUBLE SHOOTING Flow chart - 92 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 92: Camera Trouble

    C610 CAM_RST_N 7.5p CAM_PWDN C611 C612 C613 0.1u 0.1u 0.1u VA601 VA602 Figure 4.10.1 Camera Circuit Checking Point - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 93 4. TROUBLE SHOOTING Checking Flow - 94 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 94 4. TROUBLE SHOOTING Waveform Figure 4.10.2 Camera 24MHz MCLK Waveform Figure 4.10.3 Camera 48MHz PCLK Waveform - 95 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 95: Main Lcd Trouble

    LCD_F_DATA[3] LCD_F_DATA[0] LNAND_D_[00] OUT1 LCD_F_DATA[2] LCD_F_DATA[1] LCD_F_DATA[0] LCD_MAKER_ID VA805 C607 C608 Figure 4.11.1 Main LCD Circuit Checking Point - 96 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 96 4. TROUBLE SHOOTING Checking Flow - 97 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 97 Dummy Read “data” 2nd Read “data” 3rd Read “data” Read Nth pixel Index register (N+1)th pixel (N+2)th pixel - 98 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 98: Vibrator Trouble

    Vibrator is operate when DC motor driver is enabled Check Point difference of TP1 (Mot+) & TP2 (Mot-) VBAT VB500 VIBRATOR Figure 4.12.1 Vibrator Trouble Circuit - 99 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 99 Operate the Vibrator TP1(Mot+)&TP2(Mot-) Voltage gap is 2.4~3.6V Change the Motor Working? Change Vibrator or main Board - 100 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 100: Bt Trouble

    4.13.1 BT Component & Signal Path TABLE 4.13.1 Reference Description U700 BT/FM MAIN CHIP X700 BT XO(26MHZ) FL700 BT FILTER ANT701 BT ANTENNA - 101 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 101 1. Check the BT Power Regulation and Supply voltage 2. Check the Clock 3. Check the signal path Checking Flow - 102 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 102 Board Picture Circuit Diagram VBT_2V8 VBAT C712 C713 2.2u 0.1u UART_RX UART_TX UART_RTS UART_CTS BT_RF PCM2_IN U700 PCM2_OUT - 10 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 103 4. TROUBLE SHOOTING Check flow - 104 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 104 - BT Chip consists of two kinds of clock. One is sys clock(26M), the other sleep clock (32khz) Board Picture Circuit Diagram DSX321G-26M X700 26MHz C724 C723 C726 R705 SLEEP_CLK BT_32K - 105 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 105 4. TROUBLE SHOOTING Check flow BT&FM CLOCK-Waveform <SYSTEM CLOCK 26Mhz> <SLEEP CLOCK 32.795Khz> - 106 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 106 TP10 6.8p C714 100p C716 C715 FEEDING GND1 GND2 TP11 C718 2450MHz C717 ALA321C3 100n L704 BT_RF 1.8n - 107 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 107 4. TROUBLE SHOOTING Check flow - 108 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 108: Fm Trouble

    - FM INTENNA PATH TABLE 4.14.1 Reference Description U700 BT/FM MAIN CHIP X700 BT XO(26MHZ) Q700 FM LNA ANT700 FM ANTENNA - 109 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 109 1. Check the FM Power Regulation and Supply voltage 2. Check the Clock 3. Check the signal path Checking flow - 110 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 110 4.14.2.1 Check the FM Power Regulation and Supply voltage - FM(BT) Chip has two supply voltage and Power regulator Board Picture - 111 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 111 Circuit Diagram VBT_2V8 VBAT C712 C713 2.2u 0.1u UART_RX UART_TX UART_RTS UART_CTS BT_RF PCM2_IN U700 PCM2_OUT Check flow - 112 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 112 MTK chip Board Picture TP TP8 Circuit Diagram DSX321G-26M X700 26MHz C724 C723 C726 R705 SLEEP_CLK BT_32K - 11 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 113 4. TROUBLE SHOOTING Check flow - 114 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 114 - FM has two signal path. One is for Earjack. The last is for FM intenna. On the section, We deal with Earjack path. Board Picture TP10 TP11 - 115 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 115 CN401 ZD701 TP10 FM_ANT ZD401 L400 C418 270n TP11 C721 L705 100n FM_RX FM_ANT C722 L706 100n VSS_FM_AUDIO - 116 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 116 4. TROUBLE SHOOTING Check flow - 117 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 117 - FM has two signal path. One is for Earjack. The last is for FM intenna. On the section, We deal with FM Intenna path. Board Picture TP14 TP11 TP1 TP12 TP10 - 118 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 118 R700 R701 R702 TP1 C702 TP14 TP12 FM_ANT C725 Q700 FM_ANT_1 470n 330p C703 C704 R703 4.7K 470n - 119 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 119 4. TROUBLE SHOOTING Check flow - 120 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 120: Rf Trouble Shooting

    GSM RF Transceiver U101 GSM Quad EDGE PAM FL101 Front End Module X100 26MHz Crystal SW101 Mobile Switch - 121 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 121 GSM850 DCS/PCS GSM850/EGSM Figure 4.15.2 GSM850/EGSM/DCS/PCS Signal Path A. Quad Band Rx Path B. Quad Band Tx Path - 122 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 122 4. TROUBLE SHOOTING 4.15.3 RF Trouble Check Flow Figure 4.15.3 Checking Block - 12 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 123 26MHz VBAT C122 C123 220n 0.1u C 126 C127 C128 0.1u 220n Figure 4.15.4 RF Power Block Circuit - 124 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 124 TP1(VBAT) is OK? Check VBAT line TP2(VPM_RF:2.8V), Check MT6235 TP3(AVDD : 2.8V) are OK? RF Power Block is OK !! - 125 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 125 DSX321G-26M REFINB VSUP_REF C113 L101 26MHz Checking Point and Flow X100 TP4 (S_EN) TP3 (S_DATA) TP2 (S_CLK) TP1(L101) - 126 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 126 4. TROUBLE SHOOTING Checking Flow Signal Waveform RF_S_CLK CLK_26M RF_S_DATA RF_S_EN - 127 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 127 REF_SEL SDATA AD6546 RF_S_EN SEL_26M VLDO3_DRV C108 Checking Points and Flow IQ Signal Waveform No network Call connection - 128 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 128 L103 L104 L105 L106 SW101 6.8n 4.7n ANT_FEED C129 100p L102 100n Checking Points TP2 ~ TP5 SW101 - 129 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 129 4. TROUBLE SHOOTING Checking Flow - 10 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 130 R115 PGND7 PGND6 SW101 ANT_FEED C129 100p R117 R118 L102 100n R116 Checking Points and Flow TP1(DCS/PCS) TP2(GSM850/900) - 11 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 131 Check FEM (refer to 5.15.9) GSM850/900, 32dBm over And then Replace FEM(FL101) DCS/PCS, 29dBm over? RF TX Path OK - 12 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 132 GSM1900RX1 GND2 GSM1800RX2 GND1 GSM1800RX1 GSM900RX2 RF_ANT_SW2 GSM900RX1 RF_ANT_SW1 GSM850RX2 GSM850RX1 C124 C125 100p 100p FEM Control Logic - 1 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 133 2.4V < High Level < 2.8V Check the Logic Re-download SW & CAL Is it OK? FEM control logic OK - 14 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 134 4. TROUBLE SHOOTING Signal Waveform (TP1, TP2 at LB call) - 15 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 135 PGND11 PGND2 VBAT 220p PGND10 PGND3 PGND9 PGND4 PGND8 PGND5 PGND7 PGND6 C126 C127 0.1u PAM(U101) control Logic - 16 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 136 4. TROUBLE SHOOTING Checking points and Flow TP1(BS) TP2(TX_EN) TP3(VAPC) Checking Flow - 17 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 137 TP1(BS) signal for HB call TP2, TP3 for LB call(PCL5) TP2, TP3 for HB call(PCL0) TP3(VAPC) TP3(VAPC) TP2(TX_EN) TP2(TX_EN) - 18 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 138: Download

    5. DOWNLOAD 5. DOWNLOAD - 19 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 139 5. DOWNLOAD LGS10 LGS10 - 140 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 140 5. DOWNLOAD LGS10 LGS10 - 141 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 141 5. DOWNLOAD LGS10 LGS10 - 142 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 142 5. DOWNLOAD LGS10 LGS10 LGS10 LGS10 LGS10 - 14 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 143 5. DOWNLOAD LGS10 - 144 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 144 5. DOWNLOAD LGS10 - 145 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 145 5. DOWNLOAD - 146 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 146 5. DOWNLOAD - 147 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 147 5. DOWNLOAD - 148 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 148 5. DOWNLOAD - 149 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 149 5. DOWNLOAD LGS10 ‘LGS10’ LGS10 LGS10 - 150 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 150 5. DOWNLOAD LGS10 LGS10 LGS10 LGS10 LGS10 LGS10 LGS10 LGS10 - 151 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 151 5. DOWNLOAD LGS10 LGS10 LGS10 LGS10 - 152 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 152 5. DOWNLOAD LGS10 LGS10 - 15 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 153 5. DOWNLOAD LGS10 LGS10 - 154 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 154: Block Diagram

    6. BLOCK DIAGRAM 6. BLOCK DIAGRAM - 155 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 155 6. BLOCK DIAGRAM - 156 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 156 6. BLOCK DIAGRAM - 157 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 157 6. BLOCK DIAGRAM - 158 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 158 IN2+ RCV_SPK_N OUT+ Analog SW AU_OUT0_N (DG2735DN) SPK_N RCV_SPK_OUT_N OUT- IN2- AUD_RCV_SPK_SEL GPIO74 Speaker RCV_P MT6235 RCV_N Receiver - 159 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 159 6. BLOCK DIAGRAM - 160 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 160: Circuit Diagram

    C134 C135 C137 C129 100p 3.9p 3.9p L102 100n R117 R118 L103 L104 L105 L106 R116 6.8n 4.7n Copyright © 2010 LG Electronics. Inc. All right reserved. - 161 - LGE Internal Use Only Only for training and service purposes...
  • Page 161 Enable Burn mode mode Security EFUSE TESTMODE XBOOT SECU_EN FSOURCE VBAT VCCQ VBAT R233 4.7K R234 4.7K VMEM_1V8 LGE Internal Use Only - 162 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 162 VCC2 TP311 NAND_CS_N NAND_LB_N TP312 VCCQ TP313 NAND_UB_N TP314 NAND_RE_N NAND_BSY_N R__B VSS5 TP315 NAND_WR_N VSS6 NAND_WP_N VSS7 Copyright © 2010 LG Electronics. Inc. All right reserved. - 163 - LGE Internal Use Only Only for training and service purposes...
  • Page 163 ISET : Charging current set ISET : 530/R(K) IEOC : End of Charging current set IEOC : R/200 LGE Internal Use Only - 164 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 164 SPK_N C523 C524 DG2735DN-T1-E3 120p SPK_P Vibrator COM2 RCV_SPK_P RCV_SPK_N COM1 AUD_RCV_SPK_SEL RCV_P EUSY0347001 VBAT RCV_N VB500 VIBRATOR Copyright © 2010 LG Electronics. Inc. All right reserved. - 165 - LGE Internal Use Only Only for training and service purposes...
  • Page 165 CAM_DATA[6] INOUT_A3 INOUT_B3 CAM_F_DATA[6] CAM_PWDN C611 C612 C613 CAM_DATA[7] INOUT_A4 INOUT_B4 CAM_F_DATA[7] 0.1u 0.1u 0.1u VA601 VA602 7.5pF LGE Internal Use Only - 166 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 166 FM_TX_P PIO_1 PIO_4 FM_TX_N PCM1_IN/SPI_MOSI BT_PCM_OUT PCM1_OUT/SPI_MISO BT_PCM_IN PCM1_SYNC/SPI_CS# BT_PCM_SYNC PCM1_CLK/SIP_CLK BT_PCM_CLK SPI_PCM#_SEL DSX321G-26M X700 26MHz C724 C723 Copyright © 2010 LG Electronics. Inc. All right reserved. - 167 - LGE Internal Use Only Only for training and service purposes...
  • Page 167 VOL-UP KEY_OUT[1] VOL-DOWN KEY_IN[3] KEY_OUT[3] KEY_IN[0] KEY_IN[4] KEY_OUT[4] KEY_IN[5] MIC_P END_KEY MIC_N MAIN_KEY_BACKLIGHT VA800 VA801 VA802 AXT624124 VMIC_BIAS_N LGE Internal Use Only - 168 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 168: Keypad Interface

    VMIC_BIAS_P CN100 KEY_IN[0] KEY_OUT[0] KEY_IN[1] KEY_OUT[1] KEY_IN[2] KEY_OUT[2] KEY_IN[3] KEY_OUT[3] KEY_IN[4] KEY_OUT[4] KEY_IN[5] MIC_P END_KEY MIC_N MAIN_KEY_BACKLIGHT AXT524124 Copyright © 2010 LG Electronics. Inc. All right reserved. - 169 - LGE Internal Use Only Only for training and service purposes...
  • Page 169 Main to Volume Key FPCB VOL-UP KB100 KEY_OUT[0] KEY_OUT[0] VOL-UP VOL-DOWN KEY_OUT[1] VOL-DOWN KEY_IN[0] KB101 CN100 KEY_OUT[1] KEY_IN[0] LGE Internal Use Only - 170 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 170: Bga Pin Map

    8. BGA PIN MAP 1. BGA PIN MAP 8. BGA PIN MAP MT6235 (Baseband Chipset) - U200 (bottom view) - 171 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 171 8. BGA PIN MAP K511H12ACM-B075 (MCP,NAND) – U300 (EUSY03489002) - 172 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 172 8. BGA PIN MAP TS5USBA33402YZPR (MUIC)– U400 (EUSY0372001) - 17 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 173 8. BGA PIN MAP WM9093 (Ultra Low Power Audio Subsystem)– IC500 (EUSY0403901) 20-bump CSP package; Top View - 174 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 174 8. BGA PIN MAP BlueCore BC7820 WLCSP 0.4MM pitch Orientation from Top of Device - 175 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 175 - 176 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 176: Pcb Layout

    R206 CN800 BtB Connector R800 - No key input CN800 D801 D800 C802 - No MIC input LG-S310_MAIN_SPFY0234701-1.0-TOP Copyright © 2010 LG Electronics. Inc. All right reserved. - 177 - LGE Internal Use Only Only for training and service purposes...
  • Page 177 - No service & TX power SW100 RF Coaxial connector - No service CN400 Battery connector - No power on LG-S310_MAIN_SPFY0234701-1.0-BOT LGE Internal Use Only - 178 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 178 KB114 Dome Key KB112 KB114 - No Button Input KB113 LD100 LD105 R100 R105 KB117 KB119 KB118 LG-S310_F_KEY_SPCY0245001_1.0_TOP Copyright © 2010 LG Electronics. Inc. All right reserved. - 179 - LGE Internal Use Only Only for training and service purposes...
  • Page 179 SW100 RF Cable Connector MIC100 MEMS MIC Bottom Type - No Antenna Bar - No MIC input - No Network LG-S310_F_KEY_SPCY0245001_1.0_BOT LGE Internal Use Only - 180 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 180 KB101 Volume Key - No volume up button input CN10 Side Key FPCB Pad - No volume key input LG-S310_F_SK_VOL_SPKY0092901_TOP Copyright © 2010 LG Electronics. Inc. All right reserved. - 181 - LGE Internal Use Only Only for training and service purposes...
  • Page 181 LGE Internal Use Only - 182 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 182: Calibration

    2. After selecting “Select File” button, select right RF cable loss file corresponding to RF cable that you use. - 18 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 183 3. Click “User Model Selection” icon in the menu to set model configuration. Do double-click model/buyer name that you want to calibrate and test. Click the “Select” button. - 184 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 184 - “C:\LGE\Tachyon\Report\CalData\” : the file of RF calibration result - “C:\LGE\Tachyon\Report\TestData\” : the file of RF test result - 185 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 185: Test Mode

    - Right key - Left key ……….. ……. …. Press “OK” button (Center Key) Move to next step - 186 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 186 1.Vibrator On (Auto) Press “OK” button (Center Key) 2. Test Finished, OK Move to next step next step. - 187 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 187 Move to next step` Item Order Description (1) Key Press Test 1.Key Test Key Test 2. Test Finished, OK next step. - 188 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 188 (6) Loopback Test 1.Loopback On (Auto) Press “OK” button (Center Key) TEST END 2. Press “OK” Button. And TEST END - 189 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 189 - 190 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 190: Exploded View & Replacement Part List

    12. EXPLODED VIEW & REPLACEMENT PART LIST 12.1 EXPLODED VIEW Copyright © 2010 LG Electronics. Inc. All right reserved. - 191 - LGE Internal Use Only Only for training and service purposes...
  • Page 191 LGE Internal Use Only - 192 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 192: Replacementparts

    COMPLEXLG-S310INDSVZZ:WithoutColorLCD MTAZ01 Tape MTAZ0334801 COMPLEXLG-S310INDSVZZ:WithoutColorDecoFront MTAZ00 Tape MTAZ0334901 COMPLEXLG-S310INDSVZZ:WithoutColorKeyVolume COMPLEXLG- MWAC00 Window,LCD MWAC0149901 S310INDSVZZ:WithoutColorCUTTING,PMMAMR200, ACGM0166701 ACGM00 CoverAssembly,Rear LG-S310INDSVZZ:WithoutColor- - 19 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 193 MPBN01 Damper,Speaker MPBN0092801 COMPLEXLG-S310INDSVZZ:WithoutColorPadSpeakerBack COMPLEXLG- MPBN02 Damper,Speaker MPBN0092901 S310INDSVZZ:WithoutColorPadSpeakerBlock1 COMPLEXLG- MPBN00 Damper,Speaker MPBN0093001 S310INDSVZZ:WithoutColorPadSpeakerBlock2 MPBZ00 Damper MPBZ0358001 COMPLEXLG-S310INDSVZZ:WithoutColorPadFinger - 194 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 194 MLAJ00 Label,MasterBox MLAJ0004402 (forCGRTDR2VER.mbox_label) COMPLEXLG- MLAP00 Label,Unit MLAP0001124 W810BUMSVZZ:WithoutColorBOX,DW,PBOPBODW COMPLEXKF690CHNSVZZ:WithoutColorPRINTING,ChinaG MLAQ00 Label,UnitBox MLAQ0018018 SM+CDMAUBLabel(90*40) MLAZ00 Label MLAZ0050901 COMPLEXKU990GBRBKZZ:WithoutColor- - 195 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 195 PCBAssembly, SACD00 SACD0096301 2 LG-S310INDSVFLEXIBLE1.0 Flexible,SMTTop LD100, LD101, LD102, LD103, WHITE2.85~3.1520mA45~60mcd(X:Y=0.273/0.295~0.332/0. LED,Chip EDLH0005901 LD104, 358)75mW1608R/TP2P- LD105, LD106, LD107 - 196 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 196 ECCH0000185 55TO+125C1005R/TP- Chip MURATAMANUFACTURINGCO.,LTD. GRM1555C1H3R9C3.9pF0.25PF50VNP0- Capacitor,Ceramic, C132,C133 ECCH0000195 55TO+125C1005R/TP- Chip MURATAMANUFACTURINGCO.,LTD. C611,C612, Capacitor,Ceramic, C1005JB0J104KT000F0.1uF10%6.3VY5P- ECCH0002001 C613 Chip 30TO+85C1005R/TP-TDKCORPORATION - 197 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 197 ELCH0003835 300mA0.18OHM6KHZ8SHIELD11.0X0.5X0.55MMR/TPMUR Chip ATAMANUFACTURINGCO.,LTD. LQG15HS22NJ02220NH5%- Inductor,Multilayer, C112 ELCH0003839 300mA0.42OHM1.9KHZ8SHIELD11.0X0.5X0.55MMR/TPMU Chip RATAMANUFACTURINGCO.,LTD. LQG15HSR10J02100NH5%- Inductor,Multilayer, C718,L102 ELCH0003842 150mA1.25OHM600HZ8SHIELD11.0X0.5X0.55MMR/TPMU Chip RATAMANUFACTURINGCO.,LTD. - 198 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 198 Resistor,Chip ERHZ0000405 ROHMSemiconductorKOREACORPORATION MCR01MZP5J104100KOHM5%1/16W1005R/TP- R309 Resistor,Chip ERHZ0000406 ROHMSemiconductorKOREACORPORATION MCR01MZP5J12012OHM5%1/16W1005R/TP- R106 Resistor,Chip ERHZ0000410 ROHMSemiconductorKOREACORPORATION MCR01MZP5J20020OHM5%1/16W1005R/TP- R109 Resistor,Chip ERHZ0000435 ROHMSemiconductorKOREACORPORATION - 199 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 199 Varistor SEVY0005201 SMDR/TPAMOTECHCO.,LTD. VA800, VA801, VA802 LMSP4DNA- FL101 Filter,Separator SFAY0013301 8831.353535836.5,1880,1.5dB,1.6dB,27dB,25dB,ETC,4.5x2. 5x1.2size,FEMMURATAMANUFACTURINGCO.,LTD. FB500, BLM15HD182SN118001.0x0.5x0.5MMSMDR/TP2PMURATA Filter,Bead SFBH0008102 FB501 MANUFACTURINGCO.,LTD. - 200 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 200 Capacitor,Ceramic, C1005X7R1H331KT000F0.33nF10%50VX7R- C725 ECCH0000137 Chip 55TO+125C1005R/TP-TDKKOREACOOPERATION Capacitor,Ceramic, MCH155CN102KK1nF10%50VX7R-55TO+125C1005R/TP- C721 ECCH0000143 Chip ROHMSemiconductorKOREACORPORATION Capacitor,Ceramic, MCH153CN103KK10nF10%16VX7R-55TO+125C1005R/TP- C409,C706 ECCH0000155 Chip ROHMSemiconductorKOREACORPORATION - 201 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 201 ECZH0001210 Chip 30TO+85C1005R/TP-TDKKOREACOOPERATION C402,C414, C416,C506, Capacitor,Ceramic, C1005X5R1A105KT000F1uF10%10VX5R- ECZH0001215 C507,C508, Chip 55TO+85C1005R/TP-TDKKOREACOOPERATION C509 Capacitor,Ceramic, GRM155R60J474K470nF10%6.3VX5R-25TO+70C1005BK- C704 ECZH0001217 Chip DUP-MURATAMANUFACTURINGCO.,LTD. - 202 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 202 LQG15HSR22J02D220NH5%0V0A3.77OHM450MHZ8SHIE Inductor,Multilayer, L700 ELCH0003848 LD01.0X0.5X0.5MMR/TPMURATAMANUFACTURINGCO.,L Chip Inductor,Multilayer, 1005GC2TR10J00100NH5%0V100mA2.3OHM600MHZ8NO L706 ELCH0004727 Chip NSHIELD11.0X0.5X0.5MMR/TPPILKORELECTRONICSLTD. Inductor,Multilayer, HK100522NJ22NH5%0V8A2.8GOHM420mHZ300mNONSHI L703 ELCH0005004 Chip ELD11.0X0.5X0.5MMR/TPTAIYOYUDENCO.,LTD - 20 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 203 Resistor,Chip ERHZ0000485 ROHMSemiconductorKOREACORPORATION MCR01MZP5J47347KOHM5%1/16W1005R/TP- R400 Resistor,Chip ERHZ0000486 ROHMSemiconductorKOREACORPORATION R221,R222, R223,R224, R225,R226, MCR01MZP5J681680OHM5%1/16W1005R/TP- Resistor,Chip ERHZ0000505 R227,R228, ROHMSemiconductorKOREACORPORATION R229,R230, R231 - 204 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 204 SFBH0008101 MANUFACTURINGCO.,LTD. BLM15HG102SN1600at100MHz,1000at1GHz1.0x0.5x0.5SM FB504,FB505 Filter,Bead SFBH0008106 DR/TP2PMURATAMANUFACTURINGCO.,LTD. BLM15BD221SN1D220at100MHz1.0x0.5x0.5SMDR/TP2PM FB502,FB503 Filter,Bead SFBH0008107 URATAMANUFACTURINGCO.,LTD. DEA202450BT-1275A1DEA202450BT- FL700 Filter,Dielectric SFDY0003001 1275A1,2450MHz,2.0*1.25*1.05,SMD,2400M~2500M,IL1.6,4 pin,U-U,50-50,BTBPFTDKCORPORATION - 205 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 205 AMANUFACTURINGCO.,LTD. SPFY0234701FR-4StaggeredviaSTAGGERED-100.8LG- SPFY PCB,Main SPFY0234701 S310INDSV,MAIN,D,FR-40.8mm,STAGGERED- 10UNITECHPRINTEDCIRCUITBOARDCORP. LM36SSFFHSIS- SVCY00 CameraModule SVCY0024501 LM36SSFF3MFF,Samsung(1/5"),7x7x4.1,FPCB,90degreeHA NSUNGELCOMTECCO.,LTD. GPM1031A0Main,2.2",176*220,39.848*52.95*1.9t,262K,TFT, EAJ020200 LCD,Module-TFT SVLM0036102 TM,ILI9225B,GIANTPLUSTECHNOLOGYCO.,LTD. - 206 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 206: Accessory

    TOPRISMATIC3.7V900mAH180mAH36X50X5.339.5X41.6X ithiumIon 5.75BLACKFrameType-TOCADDONGHWA LG0033,1.2M,MicroUSB5PIN,BLACK,ID180K,ningbobroadtel EBX000000 Accessory,DataCable SGDY0018701 ecommunicationco.,ltd STA- EAY060000 Adapters SSAD0036201 U12CD90Vac~264Vac5.1V700mA5060CCCNONENONE- DONGDOELECTRONICSCO.,LTD EAY060000 Adapters *S*SSAD0036202 90Vac~264Vac5.1V700mA5060CCCNONENONE- - 207 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

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