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LG -A100 Service Manual

LG -A100 Service Manual

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Internal Use Only
Service Manual
LG-A100
Date: March, 2011 / Issue 1.0

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Summary of Contents for LG LG-A100

  • Page 1 Internal Use Only Service Manual LG-A100 Date: March, 2011 / Issue 1.0...

  • Page 2: Table Of Contents

    4.7 LCD Trouble ..................... 69 4.8 Speaker Trouble ..................7 4.9 Earphone Trouble .................. 75 4.10 Microphone Trouble ................78 LGE Internal Use Only -  - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 3: Introduction

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

  • Page 5: Abbreviations

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

  • Page 7: Performance

    PC Synchronization Not Support Speech coding EFR/FR/HR Data and Fax Vibrator Loud Speaker Voice Recoding Not Support Microphone LGE Internal Use Only - 7 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 8 2. PERFORMANCE Item Feature Comment Speaker/Receiver 18x12 Speaker/ Receiver Travel Adapter MIDI 32 poly Camera Not Support FM Radio LGE Internal Use Only - 8 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 9: Technical Specification

    Power Toler. 30dBm 14dBm 28dBm 12dBm 26dBm 10dBm 24dBm 8dBm 22dBm 6dBm 20dBm 4dBm 18dBm 2dBm 16dBm 0dBm LGE Internal Use Only - 9 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 10 6,000 GSM850/ EGSM Offset from Carrier (kHz). Max. dBm Output RF Spectrum (due to switching transient) 1,200 1,800 LGE Internal Use Only - 10 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 11 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 LGE Internal Use Only - 11 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 12 2. Test distance set as 50 cm Fast Charge : Typ. 400 mA Charge Current Total Charging Time : < 3.5 hours LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 13 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 LGE Internal Use Only - 13 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 14: Technical Brief

    3. TECHNICAL BRIEF 3. TECHNICAL BRIEF 3.1 Digital Main Processor Figure. 3.1.1 X-Gold tm 110 Hardware Block Diagram LGE Internal Use Only - 14 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 15 – PWM source to drive vibrator – Keypad and display backlight supported. – HASH Unit support for hashing. LGE Internal Use Only - 15 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 16 Bus Interconnections The interconnection between the X-Bus and the TEAKlite Bus uses: • Multicore Synchronization • Shared Memory. LGE Internal Use Only - 16 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 17 – Color conversion YUV -> RGB – 2D vector graphics (Lines, filled rectangles, Bit block transfer (e.g. sprites, scrolling, antialiased bitmap fonts) LGE Internal Use Only - 17 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 18: Power Management

    (via LDO LCORE), parts of the mixed signal macro, parts of the RF macro and the external memory if a 1.8V memory is used. LGE Internal Use Only - 18 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 19 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. LGE Internal Use Only - 19 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 20 3. TECHNICAL BRIEF Table. 3-2-1 Power supply Domains (without RF) LGE Internal Use Only - 0 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 21 VCXO_enable signal. The reason for the startup is stored in the ResetSourceRead register. Battery Measurement LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 22 If the charger unit is running the ADC is controlled by the charger state-machine Figure.3.2.1 First Part of the State Machine, Running in Different Power Domains than the Second Part LGE Internal Use Only -  - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 23 3. TECHNICAL BRIEF Figure 3.2.2 Second (Main) Part of the Startup State Machine in the VPMU Domain LGE Internal Use Only - 3 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 24 This is important, especially in half/full-wave charging where the charger detection is switching between charger detected/not detected according the AC supply frequency. reasons LGE Internal Use Only - 4 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 25 LCORE core regulator and wait for the core to reach reset state before powering up the I/O supply regulators. LGE Internal Use Only - 5 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 26 3. TECHNICAL BRIEF Figure 3.2.3 Start Up Sequence (triggered by First Connect Event) LGE Internal Use Only - 6 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 27 OFF mode. This is done via the SHUTDOWN state of the PMU state machine. (see chapter switch OFF) LGE Internal Use Only - 7 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 28 10 MHz. This oscillator is running during charging and during battery measurements triggered by the PMU. It is off otherwise. LGE Internal Use Only - 8 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 29 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 LGE Internal Use Only - 9 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 30: Fem With Integrated Power Amplifier Module

    RF switch. The GaAs die, Switch die and passive components are mounted on a multi-layer laminate substrate. The assembly is encapsulated with plastic overmold. LGE Internal Use Only - 30 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 31 R316 VBAT C319 (10V,1608) C347 C321 C322 C323 C329 4.7u 4.7u 3.9p 4.7p Figure 3.3.3 FEM CIRCUIT DIAGRAM LGE Internal Use Only - 31 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 32: Crystal(6 Mhz, X10)

    Figure. 3.4.1 Crystal Oscillator External Connection 3.5 RF Subsystem of PMB8810 (U101) Figure. 3-5-1 Block DIAGRAM of RF Subsystem LGE Internal Use Only - 3 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 33: Functional 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 LGE Internal Use Only - 33 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 34 LGE Internal Use Only - 34 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 35 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 LGE Internal Use Only - 35 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 36: Memory(Fm5Q3, U10)

    1,024 erasable sectors and 64 erasable blocks respectively. The small 4KB sectors allow for greater flexibility in applications that require data and parameter storage. LGE Internal Use Only - 36 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 37 Additionally, the device supports JEDEC standard manufacturer and device identification with a 4K-bit Secured OTP. LGE Internal Use Only - 37 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 38: 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. LGE Internal Use Only - 38 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 39: Display Interface

    MP3 and PMP where long battery life is a major concern. LGE Internal Use Only - 39 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 40 LEDs is 3.3V, the input voltage should be higher than 3.4V to provide enough voltage headroom for maintaining constant brightness. LGE Internal Use Only - 40 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 41: Battery Charger Interface

    The RT8966 is capable of being powered up from AC adapter and USB (Universal Serial Bus) port inputs. Moreover, the RT8966 includes a linear regulator (LDO 4.9V, 50mA) for supplying low power external circuitry. LGE Internal Use Only - 41 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 42: Keypad Interface

    KEY_IN3 R273 KEY_IN4 VA210 VA213 VA214 VA211 VA212 C269 C262 C270 C263 C264 Figure 3.10.1 MAIN KEY STRUCTURE LGE Internal Use Only - 4 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 43 (or key combination) that was pressed and how long it was pressed. Figure 3.10.2 Block Diagram and System Integration of the KPD LGE Internal Use Only - 43 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 44: Audio Front-End

    • Analog part The following figure shows an architecture overview of the Audio section. Figure 3.11.1 Audio Section Overview LGE Internal Use Only - 44 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 45 100% by Firmware. • The high-pass functions of the voiceband filters have to be implemented in firmware on TEAKLite®. LGE Internal Use Only - 45 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 46 Loudspeaker driver, b) one mono, differential Earpiece driver and c) one stereo, single-ended (with uni- or bipolar signals), Headset driver. LGE Internal Use Only - 46 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 47 The buffers are designed to be short circuit protected. Figure 3.11.3 Switching for R/L DACs onto Buffers LGE Internal Use Only - 47 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 48 To improve SNR the sample frequency can be doubled in dedicated modes and the modulated data stream is 4MHz instead of 2 MHz. LGE Internal Use Only - 48 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 49 In case of an digital microphone VMIC can be used for supplying this microphone. Figure 3.11.5 Typical Microphone Supply Generation (alternative) LGE Internal Use Only - 49 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 50: Key Baclklight Led Interface

    R247 R248 C251 LD201 LD202 LD203 LD204 LD205 LD206 R262 KEY_LED R263 VA215 Figure 3.12.1 Key Backlight Block LGE Internal Use Only - 50 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 51: Vibrator Interface

    Figure 3.13.1 Vibrator Driver Block Diagram R253 VB201 L203 R251 VIB_P 100n C256 C255 R278 100n Figure 3.13.2 Vibrator Driver Block LGE Internal Use Only - 51 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 52: Torch Led Interface

    R220 HS_MIC C218 R221 300Kohms VDD_IO_1V8 VAUX_2V85 I2C_SDA I2C_SCL R223 R224 R225 ABB_INT_N Figure 3.14.1 Torch LED Block LGE Internal Use Only - 5 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 53: Trouble Shooting

    Figure 4.1 U102 Main Chip (EGV3) U101 Memory U301 FEM (Tx Module) FL301 SAW Filter X101 Crystal, 26MHz Clock LGE Internal Use Only - 53 - Copyright © 011 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 LGE Internal Use Only - 54 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 55 HOT2 GND2 GND1 HOT1 26MHz RX12 RF_LB_RXP RX12X RF_LB_RXN RX34 RF_HB_RXP RX34X RF_HB_RXN RF_LB_TX RF_HB_TX RF_VLOGIC RF_2G_BS PABS LGE Internal Use Only - 55 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 56 GND9 C318 RF_LB_TX PGND Tx_LB_IN R316 VBAT C319 (10V,1608) C347 C321 C322 C323 C329 4.7u 4.7u 3.9p 4.7p LGE Internal Use Only - 56 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 57 Replace FL 301 or U301 Signal is OK ? Mobile SW & TX Module and Saw Filter is OK. EGSM Rx LGE Internal Use Only - 57 - Copyright © 011 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 LGE Internal Use Only - 58 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 59 HOT2 GND2 GND1 HOT1 26MHz RX12 RF_LB_RXP RX12X RF_LB_RXN RX34 RF_HB_RXP RX34X RF_HB_RXN RF_LB_TX RF_HB_TX RF_VLOGIC RF_2G_BS PABS LGE Internal Use Only - 59 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 60 GND9 C318 RF_LB_TX PGND Tx_LB_IN R316 VBAT C319 (10V,1608) C321 C347 C322 C323 C329 4.7u 4.7u 3.9p 4.7p LGE Internal Use Only - 60 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 61 TP8 Signal is OK? ReplaceFEM (U301) TP8 signal same Replace SW301 as TP1? Mobile SW & FEM is OK. EGSM Tx LGE Internal Use Only - 61 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 62: Power On Trouble

    4. TROUBLE SHOOTING 4.4 Power On Trouble VRTC VAUX VPMU VCORE 1V8_VDD U102 VDDXO VREF END_KEY LGE Internal Use Only - 6 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 63 D201 VDDP_MEM2 VDDP_MEM1 RDY_N BFCLKO VDDP_MEM2 MEM_CLK BC0_N VDDP_MEM1 BC1_N VDDP_MEM2 CS0_N ROM_CS_N TP104 CS1_N VDDP_MEM1 CS3_N LCD_CS_N LGE Internal Use Only - 63 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 64 Is the phone power on? Does it work properly? The phone will Replace the main board Properly operating. LGE Internal Use Only - 64 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 65: Charging Trouble

    EAR_L AUD1 R219 EAR_R AUD2 R220 HS_MIC C218 R221 300Kohms VDD_IO_1V8 VAUX_2V85 I2C_SDA I2C_SCL R223 R224 R225 ABB_INT_N LGE Internal Use Only - 65 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 66 Is the voltage Replace U205 at TP2 = 4.9V ? Battery is charged? Replace U102 Charging is properly operating LGE Internal Use Only - 66 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 67: Vibrator Trouble

    4.6 Vibrator Trouble TEST POINT R251 R253 Vibrator PAD CIRCUIT R253 VB201 L203 R251 VIB_P 100n C256 C255 R278 100n LGE Internal Use Only - 67 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 68 (+) high? Does the vibrator Replace the Vibrator or vibrate well? Clean the vibrator pad Vibrator Working well ! LGE Internal Use Only - 68 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 69: Lcd Trouble

    4. TROUBLE SHOOTING 4.7 LCD Trouble TEST POINT CN401 R413 R412 R410 R431 R432 R419 R421 R434 R422 R420 R411 LGE Internal Use Only - 69 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 70 EAR_L AUD1 R219 EAR_R AUD2 R220 HS_MIC C218 R221 300Kohms VDD_IO_1V8 VAUX_2V85 I2C_SDA I2C_SCL R223 R224 R225 ABB_INT_N LGE Internal Use Only - 70 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 71 TP3 changes (R410~R413,R419~R422,R429,R431,R432,R434) low to high? Does LCD Work Replace LCD Module Properly? LCD working well ! LGE Internal Use Only - 71 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 72: Speaker Trouble

    4. TROUBLE SHOOTING 4.8 Speaker Trouble TEST POINT CN204 Speaker contact pad FB202 FB201 R209 R208 LGE Internal Use Only - 7 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 73 ( Contact Type ) C211 C212 VA201 VA202 39pF 39pF RCV_IN_N SPK_N SPK_P R209 R208 RCV_IN_P RCV_IN_N VMIC_BIAS_P LGE Internal Use Only - 73 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 74 TP2 is same as TP1? Clean CN204 or Does Speaker Work Change the Speaker Properly? Speaker working well ! LGE Internal Use Only - 74 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 75: Earphone Trouble

    4. TROUBLE SHOOTING 4.9 Earphone Trouble TEST POINT CN202 U205 LGE Internal Use Only - 75 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 76 EAR_L AUD1 R219 EAR_R AUD2 R220 HS_MIC C218 R221 300Kohms VDD_IO_1V8 VAUX_2V85 I2C_SDA I2C_SCL R223 R224 R225 ABB_INT_N LGE Internal Use Only - 76 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 77 Try again or Re-solder Level at TP3 Is a few CN202 tens mV AC? Earphone working well ! LGE Internal Use Only - 77 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 78: Microphone Trouble

    MAIN_MIC_P MIC201 100ohms 0.033uF C222 39pF C223 R228 MAIN_MIC_N 100ohms 0.033uF R229 C224 C225 VA203 VA204 39pF 39pF LGE Internal Use Only - 78 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 79: Lge Internal Use Only

    Level at TP2 Is around 1V? Can hear your voice Go to speaker trouble. through the earpiece? Microphone will work properly. LGE Internal Use Only - 79 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 80: Sim Card Interface Trouble

    VSIM_PWR R232 4.7Kohms J201 GND1 SIM_RST_1 SIM_DATA_1 SIM_CLK_1 C227 C228 C229 C230 GND5 GND2 22pF 0.1uF GND4 GND3 LGE Internal Use Only - 80 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 81 TP1? Check the voltage Re-solder J201 level at TP3 changes low to high? SIM Card will work properly. LGE Internal Use Only - 81 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 82: Key Backlight Trouble

    4. TROUBLE SHOOTING 4.12 KEY backlight Trouble TEST POINT U205 LGE Internal Use Only - 8 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 83 EAR_L AUD1 R219 EAR_R AUD2 R220 HS_MIC C218 R221 300Kohms VDD_IO_1V8 VAUX_2V85 I2C_SDA I2C_SCL R223 R224 R225 ABB_INT_N LGE Internal Use Only - 83 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 84 Or Replace U205 backlight on? Check the soldering Are all LEDs each Register and LED Working? Backlight will work properly. LGE Internal Use Only - 84 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 85: Download

    5. DOWNLOAD 5. DOWNLOAD LG-A100 LG-A100 LGE Internal Use Only - 85 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 86 5. DOWNLOAD LG-A100 LG-A100 LG-A100 LGE Internal Use Only - 86 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 87 5. DOWNLOAD LG-A100 LG-A100 LG-A100 LGE Internal Use Only - 87 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 88 5. DOWNLOAD LG-A100 LGE Internal Use Only - 88 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 89 5. DOWNLOAD LGE Internal Use Only - 89 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 90 5. DOWNLOAD LGE Internal Use Only - 90 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 91 5. DOWNLOAD ‘LG-A100’ LGE Internal Use Only - 91 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 92 5. DOWNLOAD LGE Internal Use Only - 9 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 93 5. DOWNLOAD LGE Internal Use Only - 93 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 94 5. DOWNLOAD LG-A100 ‘LG-A100’ LG-A100 LG-A100 LG-A100 LG-A100 LG-A100 ‘LG-A100’ LG-A100 LGE Internal Use Only - 94 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 95 5. DOWNLOAD LG-A100 LG-A100 LG-A100 LG-A100 LG-A100 LG-A100 LGE Internal Use Only - 95 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 96 5. DOWNLOAD LG-A100 LG-A100 LGE Internal Use Only - 96 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 97 5. DOWNLOAD LG-A100 LG-A100 LGE Internal Use Only - 97 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 98: Block Diagram

    HS_R/L Headset SPK_P SPK_N MAIN_MIC_P Speaker/Receiver MAIN_MIC_N Microphone KEY_IN[0:4] KEY_OUT[1:4] SIM_CLK / SIM_DATA / SIM_RST Card VIB_P Motor LGE Internal Use Only - 98 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 99: Circuit Diagram

    CS3_N LCD_CS_N (NOT MOUNTED) (FOR SW DEBUGGING / NOT MOUNTED) ON BOARD ARM9 JTAG & ETM INTERFACE VMIC_BIAS_P LGE Internal Use Only - 99 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 100 R278 R262 KEY_BACKLIGHT KEY_LED VA210 VA213 VA214 C262 VA211 VA212 C269 C270 VA215 R263 100n C263 C264 R256 LGE Internal Use Only - 100 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 101 C318 RF_LB_TX PGND Tx_LB_IN R316 VBAT C319 (10V,1608) C321 C347 C322 C323 C329 3.9p 4.7p 4.7u 4.7u R312 LGE Internal Use Only - 101 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 102 100ohms HS_MIC HS_MIC_N R459 2.2Kohms C437 1.5n LD401 C438 HS_MIC_P MUIC_ACC_ID R463 100ohms R460 C440 39pF C439 2.2u LGE Internal Use Only - 102 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 103: Bga Pin Map

    BGA IC pin check (U102) Ball Diagram (Top View), PMB7900(E-GOLDVoice 3) • Ball Diagram (Top View), PMB7900(E-GOLDVoice 3) Not use LGE Internal Use Only - 103 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 104: Pcb Layout

    - no sound or no/low incoming voice CN401 : LCD Conn. - no Display MIC201 : Microphone - no/low outgoing voice A100_MAIN_EAX63969001_1.0_TOP LGE Internal Use Only - 104 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 105 - low Tx power J201 : SIM conn. - SIM Card trouble VB201 : Motor - motor trouble A100_MAIN_EAX63969001_1.0_BOT LGE Internal Use Only - 105 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 106: Engineering Mode

    Use Up and Down key to select a menu and press ‘select’ key to progress the test. Pressing ‘back key will switch back to the original test menu. LGE Internal Use Only - 106 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 107: Auto Calibration

    Auto-cal generates calibration data by communicating with phone and measuring equipment then write it into calibration data block of flash memory in GSM phone. 11.2 Directory structure of Tachyon “C LGE Tachyon” LGE Internal Use Only - 107 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 108: Description Of Folder & File

    -. Model_CallSetuo.xml : stored equipment setting data for auto test. -. Model_NV.ini : default NV data. -. Model_Sequence.xml : stored calibration and auto test procedure. LGE Internal Use Only - 108 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 109: Procedure

    11.AUTO CALIBRATION 11.4 Procedure 1. Execute “/LGE/Tachyon/Tachyon.Exe” and Click Login button. 2. Tachyon execute ready display LGE Internal Use Only - 109 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 110: Tachyon Main Ui

    11. Voltage / Current Setting 12. Show Result 11.5.2. Command button Only support Calibration Test and Stop button. LGE Internal Use Only - 110 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 111: Agc

    Channel PCS 1900 Frequency 1850.2 MHz 1880 MHz 1909.8 MHz Max power 29.5 dBm 29.5 dBm 29.5 dBm LGE Internal Use Only - 111 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 112: Exploded View & Replacement Part List

    Dome Assembly,Metal EAJ00 LCD,Module-TFT SJMY00 MBK00 Can,Shield EAA00 SUMY00 Microphone,Condenser EAC00 MBK01 Can,Shield MCK00 Cover,Battery EAC00 Rechargeable Battery,Lithium Ion LGE Internal Use Only - 112 - Copyright © 2011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 113: Replacement Parts

    EAA62406601 LS01-I-10077-A0 DUAL -2DB 5 - - LS Mtron Ltd. Label, COMPLEX C2000 CGRSV WA:White C2000 USASV DIA MEZ000900 MLAB0001102 After Service 4.0 PRINTING, LGE Internal Use Only - 113 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 114 MBK62834101 FRAME AAD000000 Addition Assembly AAD85771701 LGA100.ACISDG ZY:Color Unfixed - MEZ000000 Label MEZ63828501 COMPLEX LGP520.ACISBK ZZ:Without Color - LGE Internal Use Only - 114 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 115 Cap, Box MCCL0002501 COMPLEX GD510 CZESV ZZ:Without Color - MPCY00 Pallet MPCY0012403 COMPLEX KG800 FRABK DB:DARK BLUE - LGE Internal Use Only - 115 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 116: Main Component

    R/TP - ROHM Semiconductor KOREA CORPORATION C225 R262, Resistor, Chip ERHZ0000401 MCR01MZSJ000 0OHM 5% 1/16W 1005 R/TP - ROHM. R263 LGE Internal Use Only - 116 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 117 Capacitor, C1005X7R1H471KT000F 470pF 10% 50V X7R - ECZH0001121 C428 Ceramic, Chip 55TO+125C 1005 R/TP - TDK KOREA COOPERATION LGE Internal Use Only - 117 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 118 SAFP0000401 LG-LU3000 LGTBK, MAIN, A, PAD SHORT MCR01MZP5J103 10KOHM 5% 1/16W 1005 R/TP - R109 Resistor, Chip ERHZ0000405 ROHM. LGE Internal Use Only - 118 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 119 R/TP - ROHM Semiconductor KOREA CORPORATION C302 MCR01MZP5J222 2.2KOHM 5% 1/16W 1005 R/TP - R226 Resistor, Chip ERHZ0000443 ROHM. LGE Internal Use Only - 119 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 120 LL1005-FHLR10J 100NH 5% - 150mA 2.2OHM 1.03GHZ ELCH0001430 R278 Multilayer, Chip 10 SHIELD NONE 1.0X0.5X0.5MM R/TP TOKO, INC. LGE Internal Use Only - 10 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 121 ENSY0022102 LS Mtron Ltd. L201, MCR01MZP5J100 10OHM 5% 1/16W 1005 R/TP - R251, Resistor, Chip ERHZ0000402 ROHM. R253 LGE Internal Use Only - 11 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 122 04-5151-005-100-883 5P 0.65MM ANGLE RECEPTACLE CN202 Connector, I/O ENRY0010801 DIP R/TP - KYOCERA ELCO KOREA SALES CO., LTD. LGE Internal Use Only - 1 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 123 LGIP-531A-LI-EU PRISMATIC 3.7V 950AH 950mAH EAC00 Battery, EAC61578801 5.5X34X50 5.7*34.15*53.55 BLACK INNERPACK - Tianjin Lithium Ion Lishen Battery Joint-Stock Co., Ltd LGE Internal Use Only - 13 - Copyright © 011 LG Electronics. Inc. All right reserved. Only for training and service purposes...

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