LG -A110 Service Manual
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LG -A110 Service Manual

LG -A110 Service Manual

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Internal Use Only
Service Manual
LG-A110
Date: September, 2010 / Issue 1.0

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Summary of Contents for LG LG-A110

  • Page 1 Internal Use Only Service Manual LG-A110 Date: September, 2010 / Issue 1.0...

  • Page 2: Table Of Contents

    4.9 Earphone Trouble .................77 4.10 Microphone Trouble ..............80 4.11 SIM Card Interface Trouble .............82 4.12 KEY backlight Trouble ..............84 -  - 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

    Therefore, note that unauthorized alternations or repair may affect the regulatory status of the system and may void any remaining warranty. - 5 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5 • When returning system boards or parts like EEPROM to the factory, use the protective package as described. - 6 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 6: Abbreviations

    International Portable User Identity Intermediate Frequency Liquid Crystal Display Low Drop Output Light Emitting Diode OPLL Offset Phase Locked Loop - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 Time Division Multiple Access UART Universal Asynchronous Receiver/Transmitter Voltage Controlled Oscillator VCTCXO Voltage Control Temperature Compensated Crystal Oscillator Wireless Application Protocol - 8 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 8: System Specification

    PC Synchronization Not Support Speech coding EFR/FR/HR Data and Fax Vibrator Loud Speaker Voice Recoding Not Support Microphone - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 Feature Comment Speaker/Receiver 18x12 Speaker/ Receiver Travel Adapter MIDI 32 poly Camera Not Support FM Radio Not supported - 10 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 10: Technical Specification

    Power Toler. 30dBm 14dBm 28dBm 12dBm 26dBm 10dBm 24dBm 8dBm 22dBm 6dBm 20dBm 4dBm 18dBm 2dBm 16dBm 0dBm - 11 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 6,000 GSM850/ EGSM Offset from Carrier (kHz). Max. dBm Output RF Spectrum (due to switching transient) 1,200 1,800 - 12 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 12 3 dB 13 4 dB Frequency (Hz) Max.(dB) Min.(dB) 1,000 Sending Response 2,000 3,000 3,400 4,000 2 3 dB - 1 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 2. Test distance set as 50 cm Fast Charge : Typ. 410 mA Charge Current Total Charging Time : < 3.5 hours - 14 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 14 Battery full charge voltage = 4.2 V Capacity: 950mAh Switching-mode charger Travel Charger Input: 100 ~ 240V, 50/60 Hz Output: 4.8 V, 400 mA - 15 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 15: Technical Brief

    3. TECHNICAL BRIEF 3. TECHNICAL BRIEF 3.1 Digital Main Processor Figure. 3.1.1 X-Gold tm 110 Hardware Block Diagram - 16 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 16 – PWM source to drive vibrator – Keypad and display backlight supported. – HASH Unit support for hashing. - 17 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 Bus Interconnections The interconnection between the X-Bus and the TEAKlite Bus uses: • Multicore Synchronization • Shared Memory. - 18 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 18 – Color conversion YUV -> RGB – 2D vector graphics (Lines, filled rectangles, Bit block transfer (e.g. sprites, scrolling, antialiased bitmap fonts) - 19 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 19: Power Management

    Unit (PMU). The PMU is designed to deliver the power for a typical standard phone. Figure. 3-2-1 Block Figure of the PMU Modules X-Gold tm 110 - 20 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 20 The RF module has implemented several LDO’s for different RF Power domain. The mixed signal module has some LDO’s for the audio driver and microphone supply. - 21 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 3. TECHNICAL BRIEF 3. TECHNICAL BRIEF Table. 3-2-1 Power supply Domains (without RF) - 22 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 22: Power On And Startup

    This is handled by an ADC control block in one of the state-machines. If the charger unit is running the ADC is controlled by the charger state-machine - 2 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 3. TECHNICAL BRIEF Figure.3.2.1 First Part of the State Machine, Running in Different Power Domains than the Second Part - 24 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 24 3. TECHNICAL BRIEF 3. TECHNICAL BRIEF Figure 3.2.2 Second (Main) Part of the Startup State Machine in the VPMU Domain - 25 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 HPBG on state and the system starts. This state change is indicated to the charger state-machine to enable the charger watchdog for safety. - 26 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 26: Power Supply Start-Up Sequence

    This allows to power up the LCORE core regulator and wait for the core to reach reset state before powering up the I/O supply regulators. - 27 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 27 3. TECHNICAL BRIEF 3. TECHNICAL BRIEF Figure 3.2.3 Start Up Sequence (triggered by First Connect Event) - 28 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 28: Undervoltage Shutdown

    OFF mode. This is done via the SHUTDOWN state of the PMU state machine. (see chapter switch OFF) - 29 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 29 (as e.g. USIM_pad control register) are reset only by system-reset (HW-reset or power-on reset) Figure 3.2.5 PMU Reset - 0 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 30 Before switching OFF the software shall have enabled the 32 kHz oscillator and has switched the PMU clock to the 32 kHz clock to archive the target OFF current - 1 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 31: Fem With Integrated Power Amplifier Module

    One PA block supports the GSM900 band and the other PA block supports the DCS1800 band. Both PA blocks share common power supply pads to distribute current. - 2 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 32 1.5n C313 1.2pF IN CASE OF GSM850/PCS1900 CHANGE THIS MODULE TO PART_NO SMRH0005901(SKY77543) Figure 3.3.3 FEM CIRCUIT DIAGRAM -  - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 33: Crystal(26 Mhz, X102)

    Figure. 3.4.1 Crystal Oscillator External Connection 3.5 RF Subsystem of PMB8810 (U101) Figure. 3-5-1 Block DIAGRAM of RF Subsystem - 4 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 34: General Description

    The analog section of the receiver contains two LNAs, quadrature mixer, low-pass filter, and a high resolution continuous-time delta-sigma analog-to-digital converter. Figure. 3.5.2 RECEIVER CHAIN BLOCK DIAGRAM - 5 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 35 This reference signal frequency serves as the comparison frequency for the phase detector and provides the digital circuitry with a clock signal. - 6 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 36 A minor set of power amplifiers require a bias voltage to enhance power efficiency. Support of this power amplifiers is achieved by the implemented bias DAC. Figure. 3.5.4 PA AND FEM CONTROL BLOCK DIAGRAM - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 37: Memory(K5N217Ata-At80, U102 )

    66MHz, the device provides an 11ns burst access time and 70ns initial access time. At 83MHz, the device provides an 9ns burst access time and 70ns initial access time. - 8 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 38 The K5N3217ATA is suitable for use in data memory of mobile communication system to reduce not only mount area but also power consumption. This device is available in 52-ball FBGA Type. - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 39: Sim Card Interface

    This signal makes SIM card to HW default status. SIM_CLK This signal is transferred to SIM card. SIM_DATA This signal is interface datum. - 40 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 40: Lcd Interface

    LG4515 an ideal LCD driver for medium or small sized portable products supporting WWW browsers such as digital cellular phones or small PDAs, where long battery life is a major concern. - 41 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 41 • 10% LED Output Current Accuracy • 3% LED Output Current Matching • Low-Current Shutdown Mode • Built-in Thermal Protection - 42 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 42: Battery Charger Interface

    +6.9V to protect against unqualified or faulty AC adapters cables. The IC operates over the extended temperature range (-40 C to +85 C) - 4 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 43: Keypad Interface

    R280 KEY_IN1 R281 KEY_IN2 R282 KEY_IN3 R283 KEY_IN4 VA210 VA211 VA212 VA213 VA214 Figure 3.10.1 MAIN KEY STRUCTURE - 44 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 44 (or key combination) that was pressed and how long it was pressed. Figure 3.10.2 Block Diagram and System Integration of the KPD - 45 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 45: Audio Front-End

    • Analog part The following figure shows an architecture overview of the Audio section. Figure 3.11.1 Audio Section Overview - 46 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 46 100% by Firmware. • The high-pass functions of the voiceband filters have to be implemented in firmware on TEAKLite®. - 47 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 47: Digital Part

    Loudspeaker driver, b) one mono, differential Earpiece driver and c) one stereo, single-ended (with uni- or bipolar signals), Headset driver. - 48 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 48: Digital-To-Analog Converters

    The buffers are designed to be short circuit protected. Figure 3.11.3 Switching for R/L DACs onto Buffers - 49 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 49 To improve SNR the sample frequency can be doubled in dedicated modes and the modulated data stream is 4MHz instead of 2 MHz. - 50 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 50 In case of an digital microphone VMIC can be used for supplying this microphone. Figure 3.11.5 Typical Microphone Supply Generation (alternative) - 51 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 51: Key Baclklight Led Interface

    LD202 LD203 LD204 LD205 LD206 19-217_BHC-ZM1N2QY_3T R229 Q202 KEY_BACKLIGHT KTC4075E_RTK-H 10Kohms C283 2.2u Figure 3.12.1 Key Backlight Block - 52 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 52: Vibrator Interface

    Figure 3.13.1 Vibrator Driver Block Diagram VB201 R285 VIB_P VIB_N C249 C282 DM-YK407-6F2 R260 SJMY0007905 Figure 3.13.2 Vibrator Driver Block - 5 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 53: Trouble Shooting

    Figure 4.1 U101 Main Chip (EGV3) U102 Memory U301 FEM (Tx Module) FL301 SAW Filter X101 Crystal, 26MHz Clock - 54 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 54: Rx Trouble

    Crystal Circuit (2) Check Mobile SW &TX module (3) Check PLL Control Re-download SW or Do calibration again - 55 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 55 Figure 4.2.1 CIRCUIT WAVEFORM X102 NX3225SA FMRIN FM_ANT FMRINX HOT2 GND2 GND1 HOT1 26MHZ EXXY0018404 Figure 4.2.2 Figure 4.2.3 - 56 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 56 GND2 PGND14 GND1 PGND15 L304 1.5n C313 1.2pF IN CASE OF GSM850/PCS1900 CHANGE THIS MODULE TO PART_NO SMRH0005901(SKY77543) - 57 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 57 Replace FL 301 or U301 Signal is OK ? EGSM Rx Mobile SW & TX Module and Saw Filter is OK. - 58 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 58: Tx Trouble

    (1)Check Crystal Circuit (2) Check Mobile SW &FEM (3) Check PLL Control Redownload SW or Do calibration again - 59 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 59 Figure 4.2.1 CIRCUIT WAVEFORM X102 NX3225SA FMRIN FM_ANT FMRINX HOT2 GND2 GND1 HOT1 26MHZ EXXY0018404 Figure 4.2.2 Figure 4.2.3 - 60 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 60 GND2 PGND14 GND1 PGND15 L304 1.5n C313 1.2pF IN CASE OF GSM850/PCS1900 CHANGE THIS MODULE TO PART_NO SMRH0005901(SKY77543) - 61 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 61 TP8 Signal is OK? ReplaceFEM (U301) TP8 signal same Replace SW301 as TP1? EGSM Tx Mobile SW & FEM is OK. - 62 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 62: Power On Trouble

    VPMU Figure 4.4.1 TP12 R116 TP12 RPWRON END_KEY R106 100Kohms TP12 Figure 4.4.2 Figure 4.4.3 Remote power on - 6 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 63 VCORE VAUX 1V8_VDD1V8_VDD VAUX C131 0.22uF CLEAN_GND CLEAN_GND VDDP_DIG1 DIRTY_GND DIRTY_GND DIRTY_GND Figure 4.4.4 Power block of LG-A110 - 64 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 64 Is the phone power on? Re-download software Does it work properly? The phone will Replace the main board Properly operating. - 65 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 65: Charging Trouble

    GND1 CHGSB GND2 _CHG_EN1 IEOC EN_SET EUSY0410801 R265 C247 C248 C286 R233 R231 4.7K 1.2K 5.1K Figure 4.5.2 - 66 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 66 Is the voltage U205 at TP2 = 4.9V ? Battery is charged? Replace the main board Charging is properly operating - 67 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 67: Vibrator Trouble

    Figure 4.6.1 CIRCUIT VB201 R285 VIB_P VIB_N C131 C249 C282 0.22uF DM-YK407-6F2 R260 STAR_GND SJMY0007905 DIRTY_GND Figure 4.6.2 - 68 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 68 ? Is the voltage at TP1 Replace the U101 (+) high? Replace vibrator Vibrator Working well ! - 69 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 69: Lcd Trouble

    4. TROUBLE SHOOTING 4. TROUBLE SHOOTING 4.7 LCD Trouble TEST POINT CN401 U402 TP11 TP10 Figure 4.7.1 - 70 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 70 AAT3192-1 MLED1 MLED MLED2 RSET C407 EN_SET W_LED_DRV1 R402 R448 C408 C406 EUSY0238704 4.7K (15K ohm,1/16W,F,1005) Figure 4.7.2 - 71 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 71 4. TROUBLE SHOOTING Waveform Graph 4.7.1. LCD Backlight Dimming Control Signal Waveform TP 4~TP11 Graph 4.7.2. LCD Data Waveform - 72 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 72 Replace U101 Data pins(TP4~TP11) on CN401 ? Does LCD work Replace LCD module properly ? LCD working well ! - 7 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 73: Speaker Trouble

    4. TROUBLE SHOOTING 2. TROUBLE SHOOTING 4.8 Speaker Trouble TEST POINT Figure 4.8.1 - 74 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 74 4.7ohms R_S_N C211 39pF R_S_P C210 C228 VA203 VA204 39pF 39pF L201 R271 R215 REC_P 4.7ohms R254 SPK_P - 75 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 75 Check the Audio signal Replace the Working well!! TP3(R215),TP4( R216), R215, R216, L201, L203 TP5(L201),TP6( L203) Speaker Working well!! - 76 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 76: Earphone Trouble

    4. TROUBLE SHOOTING 2. TROUBLE SHOOTING 4.9 Earphone Trouble TEST POINT C220 C219 U203 C212 C256 CN201 Figure 4.9.1 - 77 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 77 27pF I2C_SCL ECCH0000155 C254 C209 (10nF,16V,X7R,1005) C205 C207 R241 R204 VAUX CN201 GU073-5P-SD-E1500 VBUS_USB MUIC_DM MUIC_DP MUIC_ID ENRY0008801 - 78 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 78 Change the and try again the earphone? the earphone? U203,U101 Earphone will work properly - 79 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 79: Microphone Trouble

    MIC_P OBE-415L42-RC10-LGB10 100ohms 0.033uF C206 39pF C215 R212 MIC_N MIC201 100ohms 0.033uF R214 C229 C222 2.2Kohms 39pF 39pF - 80 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 80 Is it a few tens mV AC? Check the soldering of Resolder component R243, R244, C230, C215 Microphone will work properly. - 81 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 81: Sim Card Interface Trouble

    4.7Kohms J201 GCA26D-6S-H18-E1500 SIM_RST SIM_DATA SIM_CLK GND4 GND1 C216 GND3 GND2 C250 C225 C218 22pF 0.1uF 68pF ENSY0025101 - 82 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 82 Does it work Does it work Properly? Properly? SIM card is SIM card is properly working properly working. - 8 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 83: Key Backlight Trouble

    R230 R222 R227 C246 LD201 LD202 LD203 LD204 LD205 LD206 19-217_BHC-ZM1N2QY_3T R229 Q202 KEY_BACKLIGHT KTC4075E_RTK-H 10Kohms C283 2.2u - 84 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 84 Are all LEDs Check the soldering Working? each R and LED Replace or resolder Backlight will work properly. component - 85 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 85: Download

    5. DOWNLOAD 5. DOWNLOAD LG-A110 LG-A110 - 86 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 86 5. DOWNLOAD LG-A110 LG-A110 LG-A110 - 87 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 87 5. DOWNLOAD LG-A110 LG-A110 LG-A110 LGE Internal Use Only - 88 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 88 5. DOWNLOAD LG-A110 Copyright © 2010 LG Electronics. Inc. All right reserved. - 89 - LGE Internal Use Only Only for training and service purposes...
  • Page 89 5. DOWNLOAD - 90 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 90 5. DOWNLOAD - 91 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 91 5. DOWNLOAD ‘LG-A110’ - 92 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 92 5. DOWNLOAD - 9 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 93 5. DOWNLOAD - 94 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 94 5. DOWNLOAD LG-A110 ‘LG-A110’ LG-A110 LG-A110 LG-A110 LG-A110 LG-A110 ‘LG-A110’ LG-A110 - 95 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 95 5. DOWNLOAD LG-A110 LG-A110 LG-A110 LG-A110 LG-A110 LG-A110 - 96 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 96 5. DOWNLOAD LG-A110 LG-A110 - 97 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 97 5. DOWNLOAD LG-A110 LG-A110 - 98 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 98: Block Diagram

    6. BLOCK DIAGRAM 6. BLOCK DIAGRAM - 99 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 99 LGE Internal Use Only - 100 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 100: Circuit Diagram

    CS3_N NLCD_MAIN_CS (NOT MOUNTED) (FOR SW DEBUGGING / NOT MOUNTED) ON BOARD ARM9 JTAG & ETM INTERFACE VMIC Copyright © 2010 LG Electronics. Inc. All right reserved. - 101 - LGE Internal Use Only Only for training and service purposes...
  • Page 101 KEY_IN4 Q202 R270 Q204 KEY_BACKLIGHT KTC4075E_RTK-H VCORE KTC4075E_RTK-H 10Kohms 10Kohms VA210 VA211 VA212 VA213 VA214 C283 C284 2.2u LGE Internal Use Only - 102 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 102 Non FM 100K No Torch 100K 64*32 100K Waterproof 100K 100K With Torch 32*16 With Torch Wireless FM R303 Copyright © 2010 LG Electronics. Inc. All right reserved. - 103 - LGE Internal Use Only Only for training and service purposes...
  • Page 103 VBAT U402 AAT3192-1 MLED1 MLED MLED2 RSET C407 EN_SET W_LED_DRV1 C408 C406 EUSY0238704 R402 R448 4.7K (15K ohm,1/16W,F,1005) LGE Internal Use Only - 104 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 104: Bga Pin Map (Top View)

    8. BGA PIN MAP 8.1 BGA IC pin check (U101) Ball Diagram (Top View), PMB7900(E-GOLDVoice 3) : Not use - 105 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 105 8. BGA PIN MAP 8.2 BGA IC pin check (U102) Ball Diagram (Top View), K5N3217ATA : Not use - 106 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 106: Pcb Layout

    R211 C224 KB206 KB207 KB208 C231 C206 KB211 KB212 KB213 C241 C236 R230 C239 LD206 LD204 KB215 LG-A110-MAIN-SPFY0229601-1.3-TOP Copyright © 2010 LG Electronics. Inc. All right reserved. - 107 - LGE Internal Use Only Only for training and service purposes...
  • Page 107 - no Service J201 : SIM Conn. - No SIM - RF Sensitivity & TX Power ANT303 ANT305 ANT306 LG-A110-MAIN-SPFY0229601-1.3-BOT LGE Internal Use Only - 108 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 108: Engineering Mode

    ‘select’ key to progress the test. Pressing ‘back key will switch back to the original test menu. - 109 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 109: Auto Calibration

    KF300d LG-A110 Spec_GU230_001 LG-A110 Setup_Cal_Parameter_001 script_001 PwrSupply_Cmd Procedure_GU230_001 LG-A110 Ezlooks AutoSetup_GU230_001 LG-A110 xmm2130_eep008.cfg LG_RfTest_E5515C_122.dll LG_RfCal_InfiKE000Ag_177.dll dwdio.dll LG_UI_Ad6500_004.dll Multi_HK - 110 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 110: Description Of Basic File

    -. Setup_Cal_Parameter_001.xml : Calibration Definition Module. 6. UI -. LG_UI_Ad6500_002.dll : ADI Model UI Dll. 7. Multi_HK -. Registration File For System Setting. - 111 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 111: Procedure

    Connect as Fig 11-2 (RS232 serial cable is connected between COM port of PC, in general.) . Run HK_40exe to start calibration. Click “ Logic Operation” of “SETTING” menu bar - 112 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 112 10. Select “ LOGIC MODE” that you want Logic mode: 1-> Calibration only 2-> Auto test only 3-> Cal & Auto - 11 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 113: Start Button

    11. AUTO CALIBRATION 11. Select the model name “LG-A110” LG-A110 Model name Start button 12. Click “start” button - 114 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 114: Agc

    Channel PCS 1900 Frequency 1850.2 MHz 1880 MHz 1909.8 MHz Max power 29.5 dBm 29.5 dBm 29.5 dBm - 115 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 115 - 116 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 116: Part List

    DOM E ASSY,M ETAL M CBA00 CAN,SHIELD SUM Y00 M ICROPHONE SVLM 00 LCD M ODULE SC201 CAN, SHIELD Copyright © 2010 LG Electronics. Inc. All right reserved. - 117 - LGE Internal Use Only Only for training and service purposes...
  • Page 117 LGE Internal Use Only - 118 - Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 118: Exploded View & Replacement Part List

    MPBU0090001 COMPLEXGS100CHNBKZZ:WithoutColor- MTAA00 Tape,Decor MTAA0230101 COMPLEXLG-A110GBRBAZZ:WithoutColorCOMPLEX,(empty),,,,, MTAB00 Tape,Protect MTAB0430501 COMPLEXLG-A110GBRBAZZ:WithoutColorCOMPLEX,(empty),,,,, MTAD00 Tape,Window MTAD0135301 COMPLEXLG-A110GBRBAZZ:WithoutColorCOMPLEX,(empty),,,,, MWAC00 Window,LCD MWAC0154001 COMPLEXLG-A110GBRBABK:BlackCUTTING,PMMAMR200,0.8,,,, - 119 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 119 MSAZ0068701 COMPLEXGS117INDKVZZ:WithoutColor- MTAZ00 Tape MTAZ0268101 COMPLEXGS100CHNBKZZ:WithoutColor- MLAZ00 Label MLAZ0038301 COMPLEXLG-VX6000ZZ:WithoutColorPIDLabel4ArrayPRINTING, SC201 Can,Shield MCBA0059901 COMPLEXGS100CHNBKZZ:WithoutColor- MLAA00 Label,Approval MLAA0062303 COMPLEXKB770DEUBKZZ:WithoutColor- - 120 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 120 55TO+125C1005R/TP0.5SAMSUNGELECTRO- C254,C261, MECHANICSCO.,LTD. C285 C210,C211, MCH155A390J39pF5%50VNP0-55TO+125C1005R/TP- C213,C214, Capacitor,Ceramic,Chip ECCH0000120 ROHMSemiconductorKOREACORPORATION C228,C303 C205,C207, MCH155CN102KK1nF10%50VX7R-55TO+125C1005R/TP- C301,C304, Capacitor,Ceramic,Chip ECCH0000143 ROHMSemiconductorKOREACORPORATION C309 - 121 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 121 TDKKOREACOOPERATION C109,C248, C1005X5R1A105KT000F1uF10%10VX5R-55TO+85C1005R/TP- C406,C407, Capacitor,Ceramic,Chip ECZH0001215 TDKKOREACOOPERATION C408,C443 C1005X5R1A224KT000E220nF10%10VX5R-55TO+85C1005R/TP- C101,C119 Capacitor,Ceramic,Chip ECZH0001216 TDKKOREACOOPERATION GRM155R60J474K470nF10%6.3VX5R-25TO+70C1005BK-DUP- C105,C115 Capacitor,Ceramic,Chip ECZH0001217 MURATAMANUFACTURINGCO.,LTD. - 122 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 122 J201 Socket,Card *S*ENSY0018701 5000-6P-1.8SLUSIM6PSTRAIGHTSMDR/TP-HYUPJINI&CCO.,LTD. SW301 connector,RF ENWY0007601 NMS-306NMS-306,SMD,dBNAMAEELECTRONICSINC Q101,Q202, KTC4075ENPN5V60V50V150mA100NA700100mWESMR/TP3PKEC TR,Bipolar EQBN0020501 Q204 CORPORAITION Q201,Q203 TR,Bipolar EQBP0006301 KTA2014EKTA2014E,,W,R/TP,KECCORPORAITION - 12 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 123 MCR01MZP5J471470OHM5%1/16W1005R/TP- R109 Resistor,Chip ERHZ0000484 ROHMSemiconductorKOREACORPORATION R206,R265, MCR01MZP5J4724.7KOHM5%1/16W1005R/TP- Resistor,Chip ERHZ0000485 R404,R448 ROHMSemiconductorKOREACORPORATION R266,R267, MCR01MZP5J47347KOHM5%1/16W1005R/TP- R268,R269, Resistor,Chip ERHZ0000486 ROHMSemiconductorKOREACORPORATION R405 - 124 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 124 VA208, VA209, VA210, EVL5M022005.5V0%480F1.0*0.5*0.6NONESMDR/TPAMOTECHCO. Varistor SEVY0003901 VA211, ,LTD. VA212, VA213, VA214, VA215 VA203, ICVN0505X150FR5.6V0%360F1.0*0.5*0.55NONESMDR/TPINNOCH Varistor SEVY0004101 VA204 IPSTECHNOLOGY - 125 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 125 MCR01MZP5J561560OHM5%1/16W1005R/TP- R224,R227, Resistor,Chip ERHZ0000496 ROHMSemiconductorKOREACORPORATION R228,R230 VA201, EVL5M022005.5V0%480F1.0*0.5*0.6NONESMDR/TPAMOTECHCO. Varistor SEVY0003901 VA202 ,LTD. KR015131FR-4Build-UpBUILD- SPFY PCB,Main SPFY0229601 UP40.8GS105GOO2DWA,MAIN,1.3,FR-4,0.8mm,BUILD- UP4LGInnotek.com - 126 - LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 126: Accessory

    SSAD00 Adapters SSAD0034501 SUNLINELECTRONICSCO.,LTD SSAD00 Adapters *S*SSAD0034502 90Vac~264Vac4.8V400mA5060CENONENONE- STA-U35ES90Vac~264Vac4.8V400mA5060CENONENONE- SSAD00 Adapters *S*SSAD0034504 SALCOMPOY STA-U35ED90Vac~264Vac4.8V400mA5060CENONENONE- SSAD00 Adapters *S*SSAD0034503 DONGDOELECTRONICSCO.,LTD - 127 - Copyright © 2010 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

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