LG -A120 Service Manual
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LG -A120 Service Manual

LG -A120 Service Manual

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LG-A120
Service Manual
LG Electronics
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Summary of Contents for LG LG-A120

  • Page 1 LG-A120 Service Manual LG Electronics...

  • Page 2: Table Of Contents

    Table Of Contents 1. INTRODUCTION…………………...3 4.14 Torch LED Trouble…………….75 1.1 Purpose…………………………………3 4.15 FM Radio Trouble……………..77 1.2 Regulatory Information………………..3 4.16 No Connection Trouble……….80 2. PERFORMANCE…………………..5 4.17 RX Trouble…………………..…83 2.1 H/W Features…………………………..5 4.18 DCXO Trouble…………………86 2.2 S/W Features…………………………..6 4.19 SAW Filter Trouble……………87 3.

  • Page 3: Introduction

    1. INTRODUCTION 1.1 Purpose This manual provides information necessary to repair, description and download the features of this model. 1.2 Regulatory Information A. Security Toll fraud, the unauthorized use of telecommunications system by an unauthorized part(for example ,persons other than your company’s employees, agents, subcontractors, or person working on your company’s behalf) can result in substantial additional charges for your telecommunications services.
  • Page 4 E. Notice of Radiated Emissions This model complies with rules regarding radiation and radio frequency emission as defined by local regulatory agencies. In accordance with these agencies, you may be required to provide information such as the following to the end user. F.

  • Page 5: Performance

    2. PERFORMANCE 2.1 H/W Features Solution 6223D Type Bar type Antenna Type Internal (dual-Band) Main Display 1.77” 128 x 160 , TFT/65k Battery 950mAh Li-ion inner pack 950mAh: 55x34x5.7mm Only for FM (AMR/WAV Music player file) FM Receiver Yes , US/Europe band support (87.5~108MHz) Tension contact FPC...

  • Page 6: S/W Features

    2.2 S/W Features Feature Detail Item Description Operating System Audio Speech Code FR,EFR,HR,AMR-NB AMR code GSM Full Rate 3GPP Adaptive Multi Rate (AMR-NB) FM Radio MP3 Ring MP3 decode Tone Integrated hands Speaker phone mode free speaker Key Tone 6 Level (Include Mute) Volume Ring Tone 6 Level (Include Mute)
  • Page 7 Voice Voice Function Recording Voice Command Answering machine Camera Capture Size 160x120, 320x240, 640x480 Preview Size Full Screen: 128x128 Quality Low, Normal, High +4, +3, +2, +1, 0, -1, -2, -3, -4 Auto, Daylight, Tungsten, FLUORESCENT, Cloud, INCANDESCENCE Zoom 640x480 : 1x 320x240 : 1x, 2x 160x120/128x128 : 1x, 2x, 4x Effect...
  • Page 8 Battery level 4 level (0~3 level) Date & Time Display PLMN/Servic e Indicator Quick Access Mode In Idle Dimming Clock Dual Clock Home Display Shortcut icon in Idle(Quick shortcut Access) Call History Last Dial Max : records Number Last Max : records Received Number...
  • Page 9 Multi Party Call Explicit Call Transfer Network Automatic Network Selection Manual Network Preferred (User definition) Network Network Service Status DTMF DTMF Signaling DTMF Enable & Disable Cell Broadcast Read Cell Broadcast On/Off Receive On/Off setting Alert setting CB message Language setting Channel Setting...
  • Page 10 Business Card Delete Delete, Delete All(SIM or Phone), Multi Delete Supplementary Call Forwarding Unconditional Services Call Forwarding on Mobile Subscriber Busy CFNRy Call Forwarding on No Reply CFNRc Call Forwarding on Mobile Subscriber Not Reachable BAOC Barring of All Outgoing Calls BOIC Barring of Outgoing International Calls BOICexHC...
  • Page 11 Message Status Message Unread Settable Message Center Number, Reply Path and Validity Visible and Audible Message Receive Voice Mail Settable Voice Mail Center Number Message Normal, Protocol Message Overflow Blinking Icon Indicator Message Center Number Nokia Smart Message Miscellaneous Development & Function Test Facility...
  • Page 12 Battery Charging Mode Text Input Language Selectable Auto Language Predictive word input Scheduler Calendar MAX: 100 records (35 chars) To Do MAX: 50 records (35 chars) Memo MAX: 10 records (80 chars) World Time Setting Local Time Display Two Dual Clock Number of Cities Time Daylight...
  • Page 13 Alarm Once, Daily, Mon~Fri, hourly Manager Dimming Clock Power-off Alarm On Alarm Display & Ring Event Others Mobile For India, Asia Tracking software M-DOG For China Accessory Charger Adapter Normal earmic (without hook switch) User Memory 729 KB...

  • Page 14: Technical Brief

    3. TECHNICAL BRIEF 3.1 Digital Main Processor Figure.3-1-1 MT6223 FUNCTIONAL BLOCK DIAGRAM...

  • Page 15: System Overview

    3.1.1 System Overview MT6223D is an entry level chipset solution with class 12 GPRS/GSM modem. It integrates not only analog baseband but also power management blocks into one chip and can greatly reduce the component count and make smaller PCB size. Besides, MT6223D is capable of SAIC (Single Antenna Interference Cancellation) and AMR speech.
  • Page 16 Radio MT6223D integrates a mixed-signal Baseband front-end in order to provide a well-organized radio interface with flexibility for efficient customization. It contains gain and offset calibration mechanisms, and filters with programmable coefficients for comprehensive compatibility control on RF modules. This approach also allows the usage of a high resolution D/A Converter for controlling VCXO or crystal, thus reducing the need for expensive TCVCXO.
  • Page 17 Dedicated DMA bus 7 DMA channels 320K bits on-chip SRAM On-chip boot ROM for Factory Flash Programming Watchdog timer for system crash recovery 3 sets of General Purpose Timer Circuit Switch Data coprocessor Division coprocessor External Memory Interface Supports up to 2 external devices Supports 16-bit memory components with maximum size of up to 128M Bytes each Supports Flash and SRAM/PSRAM with Page Mode or Burst Mode Industry standard serial LCD Interface...
  • Page 18 Sub-systems One LDO for RF transceiver High Operation Efficiency and Low Stand-by Current Li-Ion Battery Charge function SIM Card Interface Two Open-Drain Output Switches to Control the LED and Vibrator Three NMOS switches to control RGB LEDs Thermal Overload Protection Under Voltage Lock-out Protection Over Voltage Protection Power-on Reset and Start-up Timer...
  • Page 19 Two programmable acoustic compensation filters GSM/GPRS quad vocoders for adaptive multirate (AMR), enhanced full rate (EFR), full rate (FR) and half rate (HR) GSM channel coding, equalization and A5/1, A5/2 and A5/3 ciphering GPRS GEA1, GEA2 and GEA3 ciphering Programmable GSM/GPRS Modem GSM Circuit Switch Data GPRS Class 12 Voice Interface and Voice Front End...

  • Page 20: General Description

    3.1.5 General Description Figure3-1-2 details the block diagram of MT6223D. on a dual-processor architecture, MT6223D integrates both an ARM7EJ-S core and 2 digital signal processor cores. ARM7EJ-S is the main processor that is responsible for running 2G and 2.5G protocol software. Digital signal processors handle the MODEM algorithms as well as advanced audio functions.
  • Page 21 Figure.3-1-2 MT6223 BLOCK DIAGRAM...

  • Page 22: Power Amplifier Module (Sky77542)

    Power Amplifier Module (SKY77542) Figure.3-2-1 SKY77542 FUNCTIONAL BLOCK DIAGRAM The SKY77542 is a transmit and receive front-end module (FEM) with Integrated Power Amplifier Control (iPAC.) for dual-band cellular handsets comprising GSM900 and DCS1800 operation.Designed in a low profile, compact form factor, the SKY77542 offers a complete Transmit VCO-to- Antenna and Antenna-to-Receive SAW filter solution.

  • Page 23: Transceiver Module

    Transceiver Module (AD6548) Figure.3-3-1 AD6548 FUNCTIONAL BLOCK DIAGRAM 3.3.1 General Descriptions The AD6548/9 provides a highly integrated direct conversion radio solution that combines, on a single chip, all radio and power management functions necessary to build the most compact GSM radio solution possible.
  • Page 24 integrated into the device. AD6548 incorporates a complete reference crystal calibration system. This allows the external VCTCXO to be replaced with a low cost crystal. No other external components are required. The AD6549 uses the traditional VCTCXO reference source. The AD6548/9 also contains on-chip low dropout voltage regulators (LDOs) to deliver regulated supply voltages to the functions on chip, with a battery input voltage of between 2.9V and 5.5V.
  • Page 25 3.3.3 Pin Descriptions...

  • Page 26: Memory Module (K5L6443Abm-Ad11)

    Memory Module (K5L6443ABM-AD11) Figure.3-4-1 K5L6443ABM-AD11 FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION The K5L6433ABM is a MultiChip Package Memory which combines 64Mbit NOR Flash Memory and 32M bit UtRAM2. The 64Mb NOR Flash featuring single 1.8V power supply is a 64Mbit Synchronous Burst Multi Bank Flash Memory organized as 4Mx16.
  • Page 27 internal TCSR(Temperature Compensated Self Refresh). It also supports variable and fixed latency, driver strength settings, Burst sequence (wrap or No-wrap) options and a device ID register (DIDR). The K5L6433ABM is suitable for use in data memory of mobile communication system to reduce not only mount area but also power consumption.
  • Page 28 - Using the software command sequence - Last two boot blocks are protected by WP=VIL - All blocks are protected by VPP=VIL ‧ Handshaking Feature - Provides host system with minimum latency by monitoring RDY ‧ Erase Suspend/Resume ‧ Program Suspend/Resume ‧...
  • Page 29 Pin DESCRIPTION...

  • Page 30: Fm Radio Module (Ar1200/1210)

    3.5 FM Radio Module (AR1200/1210) AR1200/1210 Figure. 3-5-1 FM Receiver Block Diagram AR1200 /AR1210 is a highly integrated single chip stereo FM radio receiver for all kinds of applications. AR1200 /AR1210 supports worldwide FM bands from 76 to 108MHz. It integrates LNA, Mixer, Oscillator and LDO regulator to minimize the external BOM cost.

  • Page 32: Lcd Interface

    Figure.3-6-1 LCD Interface General Description The Arima 1.77” model is a Color TFT (Main) LCD supplied by LG Innotek. This main LCD has a 1.77inch diagonally measured active display area with 128(RGB)x160 resolution. Each pixel is divided into Red, Green and Blue sub-pixels and dots which are arranged in vertical stripes.
  • Page 33 Figure. 3-6-2 DM17-BSM02 Block Diagram...

  • Page 34: Sim Card Interface

    3.7 SIM Card Interface Figure.3-7-1 SIM CARD Interface The MT6223 contains a dedicated smart card interface to allow the MCU access to the SIM card. It can operate via 4terminals, using SIMVCC, SIMI/O, SIMRST, SIMCLK The SIMVCC is used to control the external voltage supply to the SIM card. SIMRST is used as the SIM card reset signal.

  • Page 35: Keypad Interface

    3.8 KEYPAD Interface Figure.3-8-1. KEYPAD Interface The keypad can be divided into two parts: one is the keypad interface including 4 columns and 5 rows; the other is the key detection block which provides key pressed, key released and de-bounce mechanisms.

  • Page 36: Battery Charging Block Interface

    3.9 Battery Charging Block Interface Figure.3-9-1 Charging IC Interface The APL3206AQBI-TRG is controlled by MT6223.

  • Page 37: Audio Interface

    3.10 Audio Interface Figure.3-10-1 Audio Interface The ETK4992 is a fully differential audio power amplifier designed for portable communication device applications. It is capable of delivering 1.25 watt of continuous average power to an 8. BTL load with less than 1% distortion (THD+N) from a 5V battery voltage. It operates from 2.2 to 5.5V. Features like 90dB PSRR at 217Hz, improved RF-rectification immunity, the space-saving 8-bump WLCSP package, the advanced pop &...

  • Page 38: Vibrator Interface

    3.11 Vibrator Interface Figure.3-11-1Vibrator Interface This handset has Vibrator operation. Control signal is controlled by MT6223.

  • Page 39: Key Led Interface

    3.12 Key LED Interface This handset has 8 LEDs that illuminates blue color. Control signal is controlled by MT6223 and handset has 3 methods, ON, OFF, Dimming...

  • Page 40: Trouble Shooting

    4. Trouble Shooting A120 Base Band Trouble shooting 4.1 Power On Trouble 4.1.1 Test Point Check Points : - Battery Voltage(Need to over 3.35V) - Power-On key detection(PWRON signal) Voltage Measure pin PART 2.8V C322 Pin1 VTCXO 2.8V C323 Pin1 VCORE 1.8V C324 Pin1...
  • Page 41 4.1.2 Circuit Diagram References voltage:...
  • Page 42 4.1.3 Checking Flow Start Check Battery Voltage > Charge or Change Battery 3.35V ? Push Power ON key and Charge or Change Battery check the level change of PWRON key Check the Voltage of Replace U201 MT6223D’s Output Voltage Measure pin PART 2.8V C332 Pin1...

  • Page 43: Sim Card Trouble

    4.2 SIM Card Trouble 4.2.1 Test Point Measure pin PART VSIM C 3 2 9 Pin2 4.2.2 Circuit Diagram...
  • Page 44 4.2.3 Checking Flow Start Change the SIM Card . Our phone Does the SIM Card supports only 1.8V or 3V SIM Card supports 1 . 8 V or 3V ? Check soldering status of J301 Re-soldering J301 or other and other components components (R313/C29/R317/R318/R319/R 320)

  • Page 45: Vibrator Trouble

    4.3 Vibrator Trouble 4.3.1 Test Point Measure pin PART VBAT D306 Pin2 D306 Pin1 4.3.2 Circuit Diagram...
  • Page 46 4.3.3 Checking Flow Start Enter the Engineer Mode and set Vibrator ON Check Voltage Level of TP1 ? Change Board TP1 = VBAT ? Check Voltage level of TP2 Change D303 = 0V ? Replace Vibrator...

  • Page 47: Keypad Trouble

    Keypad Trouble 4.4.1 Test Point...
  • Page 48 4.4.2 Circuit Diagram...
  • Page 49 4.4.3 Checking Flow Start Check Metal Dome ? Change Metal Dome Change PCB...

  • Page 50: Rtc Trouble

    RTC Trouble 4.5.1 Test Point Measure pin PART VRTC C330 Pin1 4.5.2 Circuit Diagram...
  • Page 51 4.5.3 Checking Flow Start Is the Frequency about Replace X200 and try again 32kHz ? Check soldering status Replace C330 of C330 Check Voltage Level Replace C330 of TP1 = 2.6V ? RTC will work properly...

  • Page 52: Key Backlight Trouble

    Key Backlight Trouble 4.6.1 Test Point Measure pin PART VBAT D400 Pin2 VBAT D401 Pin2 VBAT D402 Pin2 VBAT D403 Pin2 VBAT D404 Pin2 VBAT D405 Pin2 VBAT D406 Pin2 VBAT D407 Pin2...
  • Page 53 4.6.2 Circuit Diagram...
  • Page 54 4.6.3 Checking Flow Start Check Voltage Level of Change PCB TP1~TP8 = VBAT ? Check LED Component Replace Component (D400~D407) (D400~D407) Change PCB...

  • Page 55: Lcm Backlight Trouble

    LCM Backlight Trouble 4.7.1 Test Point Measure pin PART U400 Pin 6 U400 Pin 4...
  • Page 56 4.7.2 Circuit Diagram...
  • Page 57 4.7.3 Checking Flow Start Check Soldering status of U400 Re-soldering U400 Check U400 output current Replace U400 is 20mA (TP1 and TP3) Change PCB...

  • Page 58: Lcm Trouble

    LCM Trouble 4.8.1 Test Point Measure pin PART V400 Pin1 V400 Pin2...
  • Page 59 4.8.2 Circuit Diagram...
  • Page 60 4.8.3 Checking Flow Start Backlight (U400) is OK? Change PCB And check TP1=2.8V? Check Control Signal and power including soldering Replace Component or LCM status, as the waveform? Check soldering Replace J400 status of J400 Change PCB...

  • Page 61: Microphone Trouble

    4.9 Microphone Trouble 4.9.1 Test Point Measure pin PART VBIAS R509 Pin2...
  • Page 62 4.9.2 Circuit Diagram...
  • Page 63 4.9.3 Checking Flow Start Make a Call Check Voltage Level of R509 Replace U201 MTK6223D VMICBIAS = 2.2 V ? Re-solder or Replace Check Component Component status around Mic. Check status of MIC Re-solder or replace Microphone Replace U200(MTK6223D) or Change PCB...

  • Page 64: Receiver Trouble

    4.10 Receiver Trouble 4.10.1 Test Point Measure pin PART RECP0 R501 Pin1 RECN0 R503 Pin1 4.10.2 Circuit Diagram...
  • Page 65 4.10.3 Checking Flow Start Make a Call Check TP1 and TP2 Re-solder or Replace the waveform Component Check the Contact of Re-solder or replace Receiver Receiver Replace U201 (MTK6223D) or Change PCB...

  • Page 66: Speaker Trouble

    4.11 Speaker Trouble 4.11.1 Test Point Measure pin PART SPK- L500 Pin1 SPK+ L501 Pin1 U500.B1 R506 Pin1 VBAT C511 Pin1...
  • Page 67 4.11.2 Circuit Diagram...
  • Page 68 4.11.3 Checking Flow Start Turn On the sound Check the Battery Check the voltage level of TP4 = VBAT ? Check the signal of TP1 & Check U201 (MTK6223D Check U201 (MTK6223D) Check the Level of TP3 = Low ? Check the Audio PA U500 Re-solder U500...

  • Page 69: Headphone Trouble

    4.12 Headphone Trouble 4.12.1 Test Point Measure pin PART USB_DN_2 B600 Pin1 USB_DP_2 B601 Pin1 EAR_R1 C518 Pin2 EAR_L1 C520 Pin2...
  • Page 70 4.12.2 Circuit Diagram...
  • Page 72 4.12.3 Checking Flow Start Does the audio profile of the phone change to the earphone mode ? Earphone Acoustic Does waveform at Replace U600 or Change the TP1&TP2 fluctuate ? PCB . Does waveform at Check U201 and component status TP3&TP4 fluctuate ? around U201 Change another Ear-Mic set and...

  • Page 73: Charging Trouble

    4.13 Charging Trouble 4.13.1 Test Point Measure pin PART C309 Pin1 C300 Pin1 SENSEP R302.1 Pin1 TP3 VBAT R302.2 Pin2 TP4 4.13.2 Circuit Diagram...
  • Page 74 4.13.3 Checking Flow Start Re-solder the J600 : I/O Connector (J600) is VCHARGE well-soldered ? Is the Voltage of TP1 & The TA is out of order . TP2 between 4.8V & Change the TA 6.4V? The voltage of TP3 & Replace the U301 TP4 is over 2.5V ? The battery may have problem...

  • Page 75: Torch Led Trouble

    4.14 Torch LED Trouble 4.14.1 Test point Measure pin PART VBAT D301 Pin2,3,4 R309 Pin1 4.14.2 Circuit Diagram -75-...
  • Page 76 4.14.3 Checking Flow Start Check Voltage Level of Change PCB TP1 = VBAT ? Check LED Component D301 Replace Component and Resistor R309 (TP2=low?) (D301, R309,) Change PCB -76-...

  • Page 77: Fm Radio Trouble

    4.15 FM Radio Trouble 4.15.1 Test point 4.15.2 FM Radio circuit: -77-...
  • Page 78 4.15.3 Checking Flow Start Choose earphone for FM antenna Change hand Check hand free free is ok? Check AVDD Check C608 of voltage is ok? Replace Check I2C signal U201 is ok? Re-download FM will work property -78-...

  • Page 79: Rf Trouble Shooting

    RF TROUBLE SHOOTING RF Module REFERENCE PART Description U100 PAM (Power Amp. Module+ASM) X100 DCXO (26MHz) JRF100 Mobile Switch U101 RX SAW Filter U102 Transceiver -79-...

  • Page 80: No Connection Trouble

    4.16 No Connection Trouble TEST POINT PAM Matching Component Antenna Matching Component JRF101 Antenna contact point -80-...
  • Page 81 CIRCUIT Mobile SW JRF101 PAM Matching Antenna Antenna component contact point Matching component -81-...
  • Page 82 CHECKING FLOW START Check Antenna PAD& Change antenna Intenna Contact Check Antenna Resolder components Matching component Change JRF100 Check Mobile SW Check PAM Resolder components Matching component Download and Calibration Change PCBA -82-...

  • Page 83: Rx Trouble

    4.17 RX Trouble TEST POINT -83-...
  • Page 84 CHECKING FLOW START Setup Test Equipment Cell Power: -74dBm GSM900 ， 3 8 DCS1800 6 98 ： ， ： Check point. DCXO(X100) Check point. Mobile SW & SAW Filter (JRF100,U101) Re-Download Software & Calibration -84-...
  • Page 85 RX1900B REFINB 0402 X100 26.0MHZ SMD-3.2*2.5mm-4Pin VCC_REF R124 C129 0.00Ohm 100nF 0402 0402 R125 C130 10.0Ohm 100nF 0402 0402 LG Electronics C131 C132 C133 C134 100nF 33.0nF 220nF 100nF 0402 0402 0402 C135 C136 0402 39.0pF 39.0pF 0402 0402 U101...

  • Page 86: Dcxo Trouble

    4.18 DCXO Trouble TEST POINT CHECKING FLOW Is the waveform of TP2 similar to Replace X100 DCXO(X100 waveform DCXO Circuit is OK. See next page to check PLL Circuit. CIRCUIT TP2 WAVE FORM -86-...

  • Page 87: Saw Filter Trouble

    4.19 SAW Filter Trouble TEST POINT CHECKING FLOW Check JRF100 With RF cable Replace Mobile Signal SW (JRF100) is OK? Replace Check TP3,4 and 5,6 of Filter (U101) U101 Mobile SW & ASM is See next page -87-...

  • Page 88: Tx Trouble

    4.20 TX Trouble TEST POINT -88-...
  • Page 89 CHECKING FLOW Setup Test Equipment Cell Power: -74dBm GSM900 CH38 DCS CH698 CHECK POINT (U102) CHECK POINT PAM CONTROL POINT CHECK ASM & MOBILE SW & SAW (JRF100,U101) Re-Download S/W & Calibration -89-...

  • Page 90: Transceiver Trouble

    4.21 Transceiver trouble TP7, there is 26MHz signal, check it. Following is the waveform. -90-...

  • Page 91: Pam Trouble

    4.22 PAM Trouble TP10 Signal configuration M ode GSM900 TX DCS 1800 TX GSM900 RX DCS 1800 RX BS (TP8) TXON_PA (TP9) VLOGIC (TP10) Wave form GSM900 TX -91-...
  • Page 92 TP10 DCS1800 TX -92-...
  • Page 93 TP10 GSM900 RX -93-...
  • Page 94 TP10 DCS1800 RX -94-...
  • Page 95 TP10 CHECKING FLOW Check control signal (TP8,9,10) Check Signals are U100 normal? PAM Control Signal is OK? See next page to check Mobile switch (sw) Circuit. -95-...

  • Page 96: Mobile Switch Trouble

    4.23 Mobile Switch Trouble TEST POINT TP11 CHECKING FLOW Check RF signal (TP11) RF Signal is Re-download S/W and normal? calibration or change PCB Replace JRF100 -96-...
  • Page 97 The full CHECKING FLOW of TX Trouble Check JRF100 with RF cable Signal is OK? Replace mobile SW (JRF100) Check TP8,9,10 Control Signal Check U100 is OK? Check U101 Replace U101 Signal is OK? Mobile SW & SAW filter is OK. Check Antenna Replace U101 Signal is OK?

  • Page 98: Download

    5.DOWNLOAD 5.1 Download setup -98-...

  • Page 99: Download Process

    5.2 Download Process LEO Download Tool Tools 1. Download cable(Prolific USB-to-Serial) 2. PC 3. Battery (3.8 V Li-ion Battery) How to install Leo download tool 1. You must install “Prolific USB-to-Serial Comm Port” driver firs t before installing this program, and then double click the “Setup.msi”...
  • Page 100 3.You can see the below picture, and then click the “Next” button. 4. You can see the below picture, and then click the “Next” button. -100-...
  • Page 101 5. You can see the below Installing picture, and then click the “Close” button installation complete. -101-...
  • Page 102 How to use Leo download tool For example: A120-00-V10a-404-XX-JUN-10-2010 1.Connect Download cable with computer, and then double click the” LEO Download Tool”. 2.you can see the below picture. -102-...
  • Page 103 3.Select COM port (LEO will auto detect COM port) 4.Select Download mode. Note: ① If you select “Download ROM”, it will download software only. ② If you select “Download ROM and Format”, it will download software and delete NVRAM all data except calibration data and IMEI number, and delete user disk data include contact information 、message etc, also it still will reset META_NVRAM to factory default.
  • Page 104 5.Click the “Setting” button and select a valid file. The file always be end of“.PCS”, reference below picture. 6.Select the“. PCS “file and press open, you can see following picture. -104-...
  • Page 105 7.After you see the pink cycle, connect download cable with handset, and then press the power key , you will see below picture. 8.After reach to 100%, SW download finish. -105-...
  • Page 106 9.If download failed, you will see the below picture. Attention: If appear failed image, Please try close LEO and try open again. -106-...

  • Page 107: Block Diagram

    6. BLOCK DIAGRAM -107-...

  • Page 108: Circuit Diagrma

    7. CIRCUIT DIAGRMA -108-...
  • Page 109 -109-...
  • Page 110 -110-...
  • Page 111 -111-...
  • Page 112 -112-...
  • Page 113 -113-...

  • Page 114: Bga Ic Pin Check

    8. BGA IC PIN Check 8.1 BGA PIN Check of main chip (MT6223) BB_MT6223 (U201) BGA use BGA non-us -114-...
  • Page 115 8.2 BGA PIN Check of Memory (K5L6443ABM-AD11) (U200) K5L6443ABM-AD11 BGA use BGA non-use -115-...

  • Page 116: Pcb Layout

    9. PCB LAYOUT -116-...
  • Page 117 J300 Battery Connector J602 No Charging I/O connecter No Power On No charging e tc U200 Memory No Booting U201 BB chipset J400 LCM connector (MT6223) No display No power on No service etc U100 (SKY77542) No TX & No RX U102 Transceiver (AD6548) No network...

  • Page 118: Engineering Mode

    10.Engineering Mode 1. Test purpose a) To verify Appearance by visual check b) To verify recognition of SIM card c) To verify Function Test in the table shown as below d) To verify power down phone 2. Test System 1. Power Supply Unit (PSU)+Dummy Battery or Battery 2.
  • Page 119 4 MMI Tests Auto test SHOW, IMEI, SW Version Echo Loop Keypad Antenna Test Version Resource BIN Vibrator Loud Spk 10. Ringtone 11. LED 12. LCD 13. Receiver 14. ADC 15. Charger 16. Headset 17. RTC 18. MTBF 19. UART 20.
  • Page 120 Work Flow -120-...

  • Page 121: All Auto Test

    All Auto Test Charger Test, LCD+Melody+Torch, BackLight+Vib+Flashlight, MIC, Headset, KeyPad, FM-Radio, RTC, ADC, Antenna 1. Charger Test Check the charger fucntoin is correct or not and charging current. 2 .LCD+Melody+Torch LCD Backlight, LCD pattern and MIDI melody playing. 3 .LCM Backlight The LCD backlight and keypad backlight with Vibrator on/off on every 0.5sec.

  • Page 122: Calibration

    11.CALIBRATION 11.1 Test Equipment set up -122-...

  • Page 123: Calibration Steps

    11.2 Calibration Steps Environment Requirement:  MS Windows 2000 or XP Hardware:  Generic Pentium III or above PC (256M RAM or above)  GPIB Card ○ National Instruments GPIB device and driver ○ Agilent GPIB card and driver ○ KEITHLEY GPIB card and driver ...
  • Page 124 The following diagrams depict the system setups when using the Agilent test platform. Connect 8960, power supply , computer ,phone -124-...
  • Page 125 When install the MTK ATE tool, first install driver. In turn execute CF06PP_INST_DRIVERS_663XXA.exe, winnt_8960_e1960.exe, 230x-850a01.exe. -125-...
  • Page 126 -126-...
  • Page 127 Second , to install the MTK ATE tool, execute the Old model \ Volume1 \setup.exe file. The Installation Wizard guides the user through the installation process step by step, up to Installation finish. Third , to install the MTK ATE tool, execute the ATE_For_New_Version_Setup \ Volume1 \setup.exe file.
  • Page 128 Execute Measurement & Automation to check equipment address Choose Devices and Interfaces -128-...
  • Page 129 You can see your equipment address Choose V30 EU setup.ini and open the file to setup from data files . （ （ （ （ For example: A120） ） ） ） -129-...
  • Page 130 Setup your CMU Base GPIB address and power supply address -130-...
  • Page 131 ATE Tool system setting Execute MTK _ ate demo Press Report & System button -131-...
  • Page 132 Setting your equipment Setting your power supply type Choose your Power Supply Type -132-...
  • Page 133 Setting your GSM/EDGE Tester Choose your Tester Choose your download com port Choose your download cable connect COM port -133-...
  • Page 134 Choose “select test setup file” To select the setup file in this icon (For example: V30 EU setup.ini) Execute MTK _ ate demo again -134-...
  • Page 135 Choose Calibration INI To select the ini file in this icon (For example: V30eu ramping EP0.1_100329.ini) Choose Con fig File To select the CFG file in this icon (For example: EU.CFG) -135-...
  • Page 136 Choose NVRAM Database file To select the SW database in this icon. Choose AP database file (Caution: ONLY Smart phone need choose To select the AP database in this icon. -136-...
  • Page 137 (Caution: ONLY Smart battery need choose Choose Battery DFI file To select the DFI file in this icon. -137-...
  • Page 138 How to setup your test report location Choose my computer Choose “C” disk -138-...
  • Page 139 Choose “program files” Choose “Program Files \ATE Tools KP199_KP320_KM330_KM335_KC530”file -139-...
  • Page 140 Setup new file and leave the window Execute MTK _ ate demo -140-...
  • Page 141 Press Report & System button Press “select test report location” -141-...
  • Page 142 Choose your setup report Press “Done” -142-...
  • Page 143 Setup finish When you finish the setup then you press save change icon. -143-...
  • Page 144 Press Configuration choose Cal Setting Setting your cable loss -144-...
  • Page 145 Press Done to save Press Configuration choose Final setting -145-...
  • Page 146 Choose “MT Call” from Establish Call Type Key in your test SIM card number form IMSI NUMBER Press “Done” and save your setting -146-...
  • Page 147 If you want calibration , you can press “initial calibration” Press Calibration Test -147-...
  • Page 148 Key-in your phone bar Code Press your phone of power on key and Start calibration -148-...
  • Page 149 Calibration is ok and will show “PASS” You can see the test report -149-...
  • Page 150 If you want final test , you can press “initial final test “ Press “RF Final test” -150-...
  • Page 151 Handset to insert SIM card Key-in bar code or IMEI number Power on handset -151-...
  • Page 152 ATE start final test -152-...
  • Page 153 If ATE test finish , ATE will show pass -153-...
  • Page 154 You can see the test report -154-...
  • Page 155 If you want initial cal and final test , you can press “initial cal and final test” Press “Cal & Final” -155-...
  • Page 156 1.Handset to insert SIM card 2.Key-in bar code or IMEI number 3.Power on handset -156-...
  • Page 157 Start calibration -157-...
  • Page 158 Calibration finish and power on handset again -158-...
  • Page 159 Start final test -159-...
  • Page 160 Finish “Cal & Final test” -160-...
  • Page 161 Ate show the test report -161-...

  • Page 162: Stand Alone Test

    12. STAND ALONE TEST 12.1 RF TX & RX Test : Test Configuration & Expected Outcome Test Configuration : Expected Outcome : TX power : 32.5 +/- 1.5 dBm for GSM900 TX power : 29.5 +/- 1.5 dBm for DCS1800 RX power : -85 4 dBm for GSM900, DCS1800...

  • Page 163: Meta Tool Install Process

    12.2 META Install & RF TX & RX Check META Tool Install process : (1) Double click “setup.exe” (2) Install Process (3) Install Process – press “Next” -163-...
  • Page 164 (4) Install Process – press “Next” (5) Install Process – press “Install” (6) Install Process -164-...
  • Page 165 (7) Install Process – press “Finish” -165-...

  • Page 166: Rx Test

    12.3 RF RX Check: (1) Open “ Meta_RF_Tool ” (2) Pull in UART cable (3) Inset RF-Cable (AG8960) -166-...
  • Page 167 (4) Select proper com port and press “Reconnect” . Step1 Step2 (5)Press handset’s power key and it will show LG logo. Than appear the following picture. Select RF Tool. -167-...
  • Page 168 (6)Loading database Make sure the same to handset. -168-...
  • Page 169 (7) Press “PM” to RX check. Select proper Band, ARFCN and PM Count. (8) Setup AG8960: Press CALL SETUP, than press “F1”, and select “GSM BCH+TCH”. -169-...
  • Page 170 (9) RX Test (AG8960)--- Set “BCH Parms” , -170-...
  • Page 171 (10) RX Test --- Press Start Select Band (GSM/DCS) Set channel number Press “Start” -171-...

  • Page 172: Tx Test

    12.4 RF TX Check : (1) Open “ Meta_RF_Tool ”. (2) Pull in UART cable. (3) Inset RF-Cable (AG8960). -172-...
  • Page 173 (4) Select proper com port and press “Reconnect” and then press handset’s power key. Step2 Step1 (5) Loading database Make sure the same to handset. -173-...
  • Page 174 (6) AG8960 need to set TCH Parms. -174-...
  • Page 175 (7)Press “TX level and profile” to TX Test， ， ， ， and click “GMSK Level and Ramp settings”. (8)Select “Change NVRAM DB” to choose the right database of the mobile. -175-...
  • Page 176 Then press “Upload from flash” to get the parameters, and press “Start” 1. Select Band (GSM/DCS) 2. Set channel number 3. Press “Start” -176-...
  • Page 177 (9) TX Test (AG8960) --- Need set “Band”, “Channel” & “Power Level” TX Output power -177-...
  • Page 178 13. #EV# Location No Description ACGA00 COVER ASSY,BATTERY GMZZ00 SBPL00 ACGM00 SAFY00 ACKA002 ACGK00 SBPL00 BATTERY PACK,LI-ION ACGA00 ACGK00 COVER ASSY,FRONT SVLM00 J602 SURY00 SUSY00 MWAC00 MWAC00 WINDOW,LCD J300 SURY00 RECEIVER ACGM00 COVER ASSY,REAR SJMY00 VIBRATOR,MOTOR SUSY00 SPEAKER AKAC00 KEYPAD ASSY,MAIN J400 GMZZ00 SCREW MACHINE...
  • Page 179 Arima part LG part Level Part Name Description number Number Headset 333-0000-00077 SGEY0003218 Headset Stereo Channel Type_EMB-LGE011STKC_16 Ohm_Mic.S/N'58 'dB_- 42 'dB_PT.CRESYN_Micro USB 5 pin, 750 + 250 mm Battery Cover 405-72650-0002 ACGA0049701 Cover_7265_BLACK_PC+ABS_N/A_Battery cover Ass'y_SKYCROSS_N/A Battery 306-0000-00071 SBPL0090501 Li-ion Battery Cell Packing_3.7V_950mAh_BLACK_LGIP-531A-SBPL0090501_LG INNOTEK_Bar code:SBPL0090501 Adapter 331-0000-00134 SSAD0032601 Travel Charger_100~240V_5.10V_700mA_CE;FCC;UL_STA-U34IS_EN50075_JEWOO_SALCOMP_MICRO USB 5PIN,SSAD0032603...
  • Page 180 ..5 X200 305-0000-00026 EXSY0024801 Crystal Oscillator_Q13MC1461000200_32.768KHZ_±20ppm_SMD-7*1.5mm-4Pin_EPSON TOYOCOM_MC-146 type ..5 X100 305-0000-00092 EXSY0025201 Crystal Oscillator_TZ1387A_26.0 MHZ_±10.0ppm_SMD-3.2*2.5mm-4Pin_TAI-SAW_N/A D400,D407,D406,D405,D ..5 309-0000-00021 EDLH0015001 LED Single Color_LTST-C193TBKT-5A_BLUE_2pin_0603_5mA/18~28mcd_LITEON_Luminous Bin Code=M1/M2 404,D403,D402,D401 ..5 D301 309-0000-00165 EDLL0009201 LED Single Color_99-216UTC/TR8-1_WHITE_4pin_SMD4_20mA/<1720mcd_EVERLIGHT_2.8*0.86**0.6mm,SIDE VIEW ..5 U600 311-0000-00881 EUSY0431201 I.C ANALOG SWITCH_ET5223_QFN_10 PINS_NoMemory_ETEK_SPDT SWITCH ..5 U602 311-0000-00980 EUSY0431301 I.C FM MODULE_AR1210-S85QEGK0_QFN_20 PINS_NoMemory_AIROHA_N/A...

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