Toshiba TS2050 Technical & Service Manual Download

Page: 85 / 103

MOBILE COMMUNICATIONS DIVISION

CUSTOMER SERVICES

Version 1.0 22/11/2006

Created by Konrad Szombara

Page 85 of 103

7.1.7 FAULTY BUZZER

Cause: PCB dead or Buzzer/Receiver has broken

Buzzer

Testing

Restore factory

setting

Fail

Re-Download

Refer to (Updating program is failed)

Check the SPK/Receiver

Component ?

(1) Change Component

Yes

PCBA dead

Summary of Contents for TS2050

Page 1: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 1 of 103 TS605 TS2050 Technical Service Manual ...

Page 2: ...12 2 1 5 OTHERS 13 2 1 6 PRODUCT OVERVIEW 15 2 2 INTERFACES 16 2 2 1 SIM CARD INTERFACE 16 2 2 2 MEMORY CARD INTERFACE 18 2 2 3 BATTERY INTERFACE 20 2 2 4 CHARGING THE BATTERY 21 2 2 5 CHARGING INDICATOR 22 2 3 HANDSET USER INTERFACE 23 2 3 1 HANDSET DESCRIPTION 23 2 3 2 KEY FUNCTIONS 24 2 3 3 DISPLAY CONCEPT 26 2 3 4 MAIN MENU 27 2 4 MMI TEST 29 3 0 MECHANICAL CONCEPT 30 3 1 EXPLODED VIEW 31 3 2 ...

Page 3: ...L DESCRIPTION 61 6 1 1 RF OVERVIEW 61 6 1 2 RF FUNCTION BLOCK DIAGRAM 62 6 1 3 FREQUENCY PLAN 63 6 1 4 TRANSMITTER 64 6 1 5 RECEIVER 65 6 2 BASEBAND OVERVIEW 66 6 2 1 INTRODUCTION 67 6 2 2 CPU MEMORY 68 6 2 3 REAL TIME CLOCK RTC 68 6 2 4 LCD MODULE 68 6 2 5 CAMERA BACKEND IC 68 6 3 SWITCHES 69 6 3 1 KEYPAD 69 6 3 2 POWER KEY 69 6 4 AUDIO SYSTEM 70 6 4 1 VOICE BAND CODEC 71 6 4 2 MICROPHONE 72 6 4 ...

Page 4: ...81 7 1 4 POOR SERVICE 82 7 1 5 WILL NOT CHARGE 83 7 1 6 LCD FAILURE 84 7 1 7 BUZZER FAULT 85 7 1 8 VIBRATOR FAULT 86 7 1 9 FAULTY KEYPAD 87 7 1 10 FAULTY RTC 88 7 1 11FAULTY MICROPHONE 89 7 1 12 LCD TESTING 90 7 1 13 FAULTY CAMERA 91 7 2 CONNECTIONS 92 7 2 1 CONNECTIONS ON BOARD 92 7 2 2 ACF CONNECTIONS 93 7 2 3 MAIN BASEBAND IC S 94 7 2 4 MAIN RF IC S 96 7 2 5 CONNECTORS ON KEYPAD PCB 97 7 3 ACF ...

Page 5: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 5 of 103 1 0 GENERAL ADVICE ...

Page 6: ...uipment All electronic equipment may also be subject to interference 4 All documentation within this service manual must remain confidential and should not be shared with any unknown 3rd party without written consent from Toshiba MCD UK Cautions 1 Servicing and alignment must be undertaken by qualified personnel only 2 Ensure all work is carried out at an ESD protected work station 3 Ensure that t...

Page 7: ...s and sim cards can be replaced in normal conditions Non ESD protected environment 3 A mobile handset contains many parts such as LCD s and cameras These parts along with more discreet components such as resistors and capacitors are susceptible to ESD 4 Metallised protective bags must be used during any transportation of ESD sensitive parts including the PCB 5 All repair actions other than accesso...

Page 8: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 8 of 103 2 0 HANDSET SPECIFICATION AND INTRODUCTION ...

Page 9: ...and Display 1 93 176X220 TFT Citizen Camera 1 3 Mega CMOS w o Marco Bluetooth V1 2 Vender CSR Chipset BC3 ROM Support v1 2 Power Class Class 2 or 3 Max Size of data of phone memory 350KB FM Radio with RDS Silicon Lab SI4701 IrDA N A Multimedia Chip AIT 811T Support MP3 1 3 M T flash Audio Codec Wolfson System Memory 256Mb NOR 64Mb SRAM Study Nuro bit type Built In Memory Option External Memory Car...

Page 10: ...1 0 JSR 75 PDA PIM FC yes JSR 120 WMA 1 1 Yes JSR 135 Yes JSR 205 WMA 2 0 Yes JSR 234 Advanced Multimedia Supplements N A JSR 248 Mobile Service Architecture for CLDC N A JSR 185 JTWI Yes JTWI Mandatory JSR 30 CLDC 1 0 JSR 120 Wireless Messaging API JSR 118 MIDP 2 0 Conditional JSR 135 MMAPI mobile multimedia API JSR 139 CLDC 1 1 Text Input T9 Input 6 1 3 TBD define by Toshiba SynML DS 1 1 2 Exten...

Page 11: ...tion 176X220 w h Dimension 1 93 LCD Technology TFT Reflective Type Transmissive type w o Micro reflective Reflective Ratio 1 0 NTSC Ratio 40 Contrast Ratio 200 1 Brightness 150 cd m2 Response Time Max 40msec View Angle Up DL Left Right 15 65 35 35 Storage Embedded SRAM 64M bit Embedded NOR Flash 32MByte External Memory Card Slot 1024MB Micro SD Flash Embedded User Storage 7480KB share W NOR Camera...

Page 12: ...lity MPEG4 AMR CIF 15fps Video Phone MPEG4 H263 N A Streaming Progressive Download N A 2 way Streaming N A 3G H 324M N A Pocket Video Player N A RealPlayer N A MS Multimedia Player N A Video Recording while Video Playback N A Dvix Support N A Audio Codec Features Audio Chip Wolfson WM8976 Audio Encode Capability AMR Audio Decode Capability AMR MP3 H W AAC FM Recording N A Melody Support Poly40 TBD...

Page 13: ...Release 98 Yes STK Release 99 Yes STK Class 3 SIM Lock Yes CPHS V 4 2 excluded IN CSP USSD Phase 1 2 Multimedia Message WAP 2 0 SMS Yes SMS Cell Broadcast Yes EMS Yes MMS Yes OMA 1 1 i Mode N A E Mail POP3 SMTP DRM DRM 1 0 IMPS Yes V1 2 Mobile QQ N A N A need to purchase PoC Push to Talk N A Data Exchange OBEX Yes SynML DS 1 1 2 SynML DM N A FOTA N A IrDA N A ...

Page 14: ...s Yes JSR 234 Advanced Multimedia Supplements N A JSR 248 Mobile Service Architecture for CLDC N A JSR 185 Yes JTWI Mandatory JSR 30 CLDC 1 0 JSR 120 Wireless Messaging API JSR 118 MIDP 2 0 Conditional JSR 135 MMAPI mobile multimedia API JSR 139 CLDC 1 1 Voice Recognition Speaker Dependent Yes Speaker Independent N A Text to Speech N A USB Features USB drive Yes Webcam Yes PC software Yes Others I...

Page 15: ...tures by downloading video clip and mp3 s that you can listen to either via the loudspeaker or the Handsfree headphone The handset only has one external connector This is used for the headset the charger and connectivity via the PC suite The PC suite allows you to connect your handset directly to the PC and transfer files to and from the memory card and user memory This enables a very quick transf...

Page 16: ... and stores your details including your PIN call history and subscription information It can also be used to store some phone book data You should only remove your SIM card when absolutely necessary If it is lost or damaged the information stored on it cannot be retrieved Inserting Removing the SIM Card Turn to the back of your phone to locate your battery room To insert or remove the SIM card Ste...

Page 17: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 17 of 103 ...

Page 18: ...2 2 2 MEMORY CARD INTERFACE Your Phones supports a microSD card up to 1GB The memory card slot is located under the battery The battery cover is located on the rear of the phone Inserting Removing the Memory slot Turn to the back of your phone to locate your battery room To insert or remove the Memory card Step 1 5 ...

Page 19: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 19 of 103 ...

Page 20: ...y Konrad Szombara Page 20 of 103 2 2 3 BATTERY INTERFACE The battery included with your phone is not charged Before you can switch on your phone for the first time you need to install the phone s battery and charge it Inserting or Changing the Battery To insert or change the battery ...

Page 21: ...ry To charge a battery During charging there will no indication on the phone screen Please keep the phone charge for a white before you disconnect the charger Disconnecting the charger To disconnect the charger grip it tightly and pull You should disconnect the charger from the power outlet before disconnecting the charger from the phone ...

Page 22: ...yed When in use and during charging the indicator shows the following icons Icon Description Icon Description Battery empty Battery nearly full Battery nearly empty Battery full Battery half When the battery is fully discharged the charging indicator is not displayed and will not appear after the phone has recharged sufficiently Note1 Always turn off the phone before removing the battery Note2 Ple...

Page 23: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 23 of 103 2 3 HANDSET UI 2 3 1 HANDSET DESCRIPTION ...

Page 24: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 24 of 103 2 3 2 KEY FUNCTIONALITY ...

Page 25: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 25 of 103 ...

Page 26: ...by Konrad Szombara Page 26 of 103 2 3 3 Display Concept Main No Icon Description 1 Signal Strength lower to high 2 Roaming 3 Keypad lock 4 Appointments 5 Bluetooth active connecting 6 Phone set to mute Vibrate 7 Alarm Set 8 Message indicator 9 Battery level empty to full 10 Headset ...

Page 27: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 27 of 103 2 3 4 MAIN MENU ...

Page 28: ...Played My Player Playlists Voice memo Background MP3 SIM card My data Memory card Call history Clear history Calls Call Settings STK SIM related functions Fast keys Shortcuts Hot keys Key Main Menu 2nd Level General Display Sounds Settings Connectivity Homepage Bookmarks Browser Settings Scheduler Alarm Appointments Tasks Notes Voice Memo Calculator Unit Converter Tools Countdown Camera View Finde...

Page 29: ...h key to eliminate the indicators on screen Long press RSK to exit RTC status enter and check the result of RTC OK OK to exit Microphone speak test talk to microphone and listen the sound from receiver OK to exit LCD Test scroll up down to sequentially display different colors Black White None Blue Green Red RGB W B Mix Any key to exit Voice memo test the voice recording function FM radio test FM ...

Page 30: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 30 of 103 3 0 MECHANICAL CONCEPT ...

Page 31: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 31 of 103 3 1 Exploded View ...

Page 32: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 32 of 103 EXPLODED VIEW CONTINUED ...

Page 33: ...BVI1008011 10 GLUE LCD SHIELD JXVI1016015 11 MAIN LCD LENS BLACK JXVI1001026 12 GLUE MAIN LCD LENS JXVI1003011 13 KEYSET VI5 BLACK ENG EEVI5001014 14 ANTENNA HOLDER VI5 EBVI5001011 15 MOTOR DC 3V 13500RPM MVMF A270J AY010314311 16 SCREW M1 6 4 0 MS16040IKQ8 17 SCREW M1 6 2 0 MS16020IVJ0 18 CARKIT RUBBER GAVI5001011 19 GASKET CMOS GBVI1003010 20 CMOS LENS JXVI5002019 21 GLUE CMOS LENS JXVI5003015 2...

Page 34: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 34 of 103 3 3 SPARE PARTS PHOTO ...

Page 35: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 35 of 103 4 0 DISASSEMBLY AND REASSEMBLY PROCEDURE ...

Page 36: ... 1 0 22 11 2006 Created by Konrad Szombara Page 36 of 103 4 1 DISASSEMBLY Purpose Change defect mechanical parts Tools Black Sticker T5 and Tweezers Tools T5 and Tweezers and Black Sticker Remove the Battery Cover Remove the Battery Black Sticker Tweezers T5 ...

Page 37: ...OMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 37 of 103 Take out Car kit rubber Release 2 screws Using Black Sticker to lift up the Top Case from the Base Case ...

Page 38: ...1 2006 Created by Konrad Szombara Page 38 of 103 Using Black Sticker to lift up the Top Case form the right side Using Black Sticker to lift up the Top Case from the left side be care do not damage the Bluetooth Antenna Let the Top Case upward And remove the Key Set ...

Page 39: ...MMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 39 of 103 The Motor vibrator can be pulled up when use tweezers Remove the receiver Release 2 screws of middle case ...

Page 40: ... 22 11 2006 Created by Konrad Szombara Page 40 of 103 Separate Key PCB from the Antenna Holder Separate the Antenna Holder from Base case Use Black Sticker to raise the PCB module from the Base Case Use Black Sticker to raise the PCB module from the Middle Case ...

Page 41: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 41 of 103 tear off mylar of Speaker Remove the speaker Carefully not to damage the SPK s pin ...

Page 42: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 42 of 103 Detach the Key PCB coaxial cable head from the Key PCB M B ...

Page 43: ...NS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 43 of 103 4 2 REASSEMBLY Assemble Middle Case on Base Case Make sure hook on the position as shown Assemble Antenna Holder on Base Case ...

Page 44: ...R SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 44 of 103 Tear off paper of speaker Place the Speaker on the Base Case remind be care the pins of speaker don t damage Stick Mylar on Speaker Stick Mylar on USB Conn as shown ...

Page 45: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 45 of 103 Mount the Key PCB coaxial cable head on the Key PCB M B Tear off protect film of CMOS ...

Page 46: ...on 1 0 22 11 2006 Created by Konrad Szombara Page 46 of 103 Assemble USB into Base Case then assemble M B to base case as shown Tear off tape paper of base case as shown then assemble K B on base case Pls push the coaxial antenna cable to the bottom of M B ...

Page 47: ...ICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 47 of 103 Tighten 2 screws on middle case Torque 0 5 0 1kgsf cm2 Tear off tape paper of Receiver then assemble on Top Case Tear off tape paper of Motor then assemble on Top Case as shown ...

Page 48: ...ON CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 48 of 103 Place Keyset on Top Case Assemble the Top Case with the Base Case as shown Be care the Motor line Take care and do not damage Bluetooth Antenna ...

Page 49: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 49 of 103 Position Top Case hook as shown Tighten 2 screws Torque 0 5 0 1kgsf cm2 ...

Page 50: ...USTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 50 of 103 Tear off tape paper of Main Lens Glue Clean the LCD and Main Lens Then assemble LCD Main Lens Tear Cmos lens tape paper Stick on the main Lens shielding ...

Page 51: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 51 of 103 Stick CMOS Lens Assemble Carkit Rubber as shown Install the Battery ...

Page 52: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 52 of 103 Position the Battery Cover ...

Page 53: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 53 of 103 5 0 SOFTWARE DOWNLOAD ...

Page 54: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 54 of 103 5 1 SOFTWARE DOWNLOAD 5 1 1 DOWNLOAD CABLES ...

Page 55: ... Version 1 0 22 11 2006 Created by Konrad Szombara Page 55 of 103 5 1 2 DOWNLOAD TOOL Mapping Language Pack Download Header encrypted Download Setting Mem address FFS PMC code Agent Encrypted Raw Data Target Encrypted Raw Data MBF file Core Software ...

Page 56: ... SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 56 of 103 5 1 3 EQUIPMENT SETTING Keep handset off before downloading software Endure that battery capacity is suitable for duration of download procedure D L Cable Handset PC ...

Page 57: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 57 of 103 5 1 4 MAIN PROGRAM INTERFACE ...

Page 58: ...the cable to the handset switch it on and the USB connection will detect automatically 1 Load the specific configuration file and check the configuration 2 Wait until Press Power is showing 3 Long press mobile power key and follow the indication on screen 4 Click Reset when finished 5 Disconnect the download cable from the mobile 1 4 3 2 ...

Page 59: ...py the user data to PC The data is saved as an encrypted file with a mot extension under the tool installed directory Restore restore user data to handset Backup Tool Procedure 1 Insert download cable and keep mobile power off 2 Execute the Backup Tool Program from the Start menu 3 Select your required function clear backup restore 4 Press power key of the handset to start the process ...

Page 60: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 60 of 103 6 0 SYSTEM MODULE AND USER INTERFACE ...

Page 61: ...ent technical features are as follows E GSM 900 GSM 1800 PCS 1900 RX Bandwidth 35 MHz 75 MHz 60 MHz TX Bandwidth 35 MHz 75 MHz 60 MHz Number of Channels 174 374 299 AFRCN Channel Numbers 124 975 1023 512 885 512 810 1st TX Channel 880 2 MHz Ch 975 1710 2 MHz Ch 512 1850 2 MHz Ch 512 Last TX Channel 914 8 MHz Ch 124 1784 8 MHz Ch 885 1909 8 MHz Ch 810 1st RX Channel 925 2 MHz Ch 975 1805 2 MHz Ch 8...

Page 62: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 62 of 103 6 1 2 RF FUNCTION BLOCK DIAGRAM 26MHz XTAL SKY77328 SKY74117 ...

Page 63: ...379 112 341MHz 1460 684 1516 606MHz Figure Receiver block frequency plan General RF circuit design is built based on SKYWORKS 74117 direction conversion transceiver IC integrated by SAW filters power amplifier with control circuit and Transmitter receiver switch RF LO always requires 26MHz for reference provided with external XTAL and internal oscillator circuits And LO frequency is periodically r...

Page 64: ...ulator integrated high power VCO offset mixer programmable divider PFD charge pump and power amplifier with its control circuit The device consists of an In phase and Quadrate I Q modulator within a frequency translation loop designed to perform frequency up conversion with high output spectral purity Clock source is an external 26MHz XTAL with internal oscillator circuits instead of VCTCXO functi...

Page 65: ... three bands integrated LNAS a quadrate demodulator baseband amplifier circuit with I Q outputs and three stages of DC offset correction The DCOC correction loop ensures DC offsets generated in SKY74117 do not overload baseband chain The receiver can be calibrated to optimize IP2 performance which ensures limited baseband interfering signal amplitude The SKY74117 also features an integrated fully ...

Page 66: ...SIM Interface and Management Audio and Tone Generation Power supply and battery management RF power control Synchronization Real time clock The baseband block is built from a GSM solution platform developed by Advanced Devices Inc The solution platform contains two main chips One chip AD6527B carries out signal processing functionality with integrated DSP and CPU the other chip AD6537B contains an...

Page 67: ...bsystems 1 Control processor subsystem including 32 bit MCU ARM7TDMI control processor 58 5 MHz operations at 1 8V 1Mb on chip System SRAM Memory 2 DSP subsystem including 16 bit Fixed out DSP Processor 91 MIPS at 1 8V Data and Program SRAM Program Instruction Cache Enhanced full rate and Half Rate Speech Encoding Decoding Capable of Supporting PDC AMR Speech Algorithms 3 Peripheral Subsystem incl...

Page 68: ...interrupt is routed through the IRQ controller to the MCU or the DSP as defined by software in interrupt configuration registers 6 2 4 LCD MODULE The LCD module panel 176 220 TFT white LED backlight module and driver chip Driver chip is connected to the main PCB via a flexible PCB strip The LCD driver is controlled by setting the command register from the AD6527 u wire interface signals then bypas...

Page 69: ...mine which key is pressed Because of key bounce the key press is confirmed twice at approximately 40 60 ms intervals Figure Keypad Connections 6 3 2 POWER KEY The two terminals of POWER key are connected to ground and POWER_KEY pin of AD6537B POWER_KEY pin is connected to high voltage through internal resistor of AD6537B When user presses the POWER key POWER_KEY pin is pulled low and a key interru...

Page 70: ... 850 DCS 1800 PCS 1900 mobile on a single device including HSCSD and GPRS The AD6537B auxiliary section provides a voltage reference an automatic frequency controller an auxiliary ADC and light controllers It also provides three differential Voiceband input and output ports Voiceband output1 is used in normal receiver mode while output3 is used as earpiece receiver mode or loud speaker mode by ana...

Page 71: ...ers Power Ramping DAC Baseband Receive Section channel and Q channel Receive ADCs and Filters Auxiliary Section Voltage Reference Automatic Frequency Control DAC Auxiliary ADC Light Controllers Audio Section 8 kHz 16 kHz Voiceband Codec 48 kHz Monophonic DAC Power Amplifiers Power Management Section Voltage Regulators Battery Charger Battery Protection Digital Processor Interface Control Baseband ...

Page 72: ...d power supply when system is booted up The following is the detailed description 6 4 2 MICROPHONE This handset uses SMD type microphone for better mechanical flexibility Their noise canceling mechanisms also provide improved speech pick up noise immunity and reduced echo The GSM standard requires the transmitter audio frequency response must fit within a mask as shown in Figure 5 11 there is no n...

Page 73: ...back case for melodies and ring tones 6 5 POWER MANAGEMENT The block diagram of power management sub system is shown below Power Management part of AD6537 AD6527 LCD Memory 26MHz VCORE VABB VMEM VRTC SIMVCC Power on detection and latching SIM Circuit RTC Circuit Charging Circuit VMEM VMEM VCORE VBAT Battery NReset Figure Power Management Subsystem Block Diagram ...

Page 74: ...KEYROW4 pin of AD6527B by KEYOUT pin and system monitors this pin for 2 seconds to make sure the key event is not a key mis pressing After 2 seconds PWRON pin of AD6527B will trigger DBBON pin of AD6537B and system is booted up successfully AD6527B also turns RF block key LEDs LCD backlight on at the same time then boot procedure is completed User Press Power Key KEYON KEYOUT KEYROW4 PWRON DBBON C...

Page 75: ... signal enables the VCXO regulator for system clock power supply The analog regulator VABB can be enabled or disabled by writing registers 6 5 4 VOLTAGE REGULATION Following is the description of each power sources Digital Core Regulator VCORE 1 8 V The digital core regulator supplies the baseband digital circuitry in the handset baseband processor and baseband converter The regulator has been opt...

Page 76: ...gh rejection to power source noise around 217Hz frequency which is easily generated by RF power amplifier SIM Regulator VSIM 2 8 V The SIM regulator generates the voltage needed by 1 8V or 3V SIM card It is rated to 20 mA of supply current and can be controlled independently from the other regulators Applying a low to SIMEN shuts down the SIM regulator A discharge circuit is active when SIMEN is l...

Page 77: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 77 of 103 7 0 TROUBLESHOOTING ...

Page 78: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 78 of 103 7 1 MAIN TROUBLESHOOTING DIAGRAM ...

Page 79: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 79 of 103 7 1 1 NO POWER UP Cause PCB dead or Part jammed Phone ...

Page 80: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 80 of 103 7 1 2 FLASH FAILED Cause PCB dead or Min USB has broken ...

Page 81: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 81 of 103 7 1 3 WILL NOT READ SIMCARD Cause PCB dead or SIM card holder has broken ...

Page 82: ... read SIM card Check Antenna touching correct 1 Modify antenna location 2 Change AN1101 antenna of PCBA 3 Change or Clean the antenna of Base rear case Check Car kit being OK 1 Clean Car Kit J1101 of PCBA 2 Change Car Kit J1101 of PCBA Re Download RF calibration again Refer to Updating program is failed 1 Check RF cable being right 2 Check Calibration setting being correct 1 Change or Clean RF cab...

Page 83: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 83 of 103 7 1 5 WILL NOT CHARGE Cause PCB dead or Mini USB has broken ...

Page 84: ...a Page 84 of 103 7 1 6 FAULTY LCD Cause PCB dead or LCD module has broken Illumination Testing Restore factory setting Re Download Fail Refer to Updating program is failed NO NO Yes Yes Check LCD FPC ACF 1 Repair LCD FPC 2 Change LCD Check LCD FPC with U403 Connecting 1 Repair U403 NO PCBA dead Yes ...

Page 85: ...Created by Konrad Szombara Page 85 of 103 7 1 7 FAULTY BUZZER Cause PCB dead or Buzzer Receiver has broken Buzzer Testing Restore factory setting Fail Re Download Refer to Updating program is failed NO Check the SPK Receiver Component 1 Change Component Yes Yes NO PCBA dead ...

Page 86: ...MOBILE COMMUNICATIONS DIVISION CUSTOMER SERVICES Version 1 0 22 11 2006 Created by Konrad Szombara Page 86 of 103 7 1 8 FAULTY VIBRA MOTOR Cause PCB dead or Vibrator has broken ...

Page 87: ...Cause PCB dead or Keypads has broken Keypads Testing Restore factory setting Re Download Fail Yes NO Refer to Updating program is failed Check keyset being OK 1 Clean and Re assemble Keyset 2 Change Keyset Check key metal dome being OK Change Key metal dome Check B2B FPC connecting OK repair ACF B2B FPC PCBA dead Yes Yes Yes NO NO NO ...

Page 88: ...6 Created by Konrad Szombara Page 88 of 103 7 1 10 RTC FAULTY Cause PCB dead or RTC battery has broken RTC status Testing Restore factory setting Fail Re Download Refer to Updating program is failed Yes NO Check BAT101 of PCBA 0 8 v Change BAT101 of PCBA NO PCBA dead Yes ...

Page 89: ...ne Speaker has broken Microphone Speaker Testing Restore factory setting Re Download Refer to Updating program is failed Check B2B FPC connecting OK repair ACF B2B FPC Check receiver assembling Re assemble receiver component Check receiver being OK Change Receiver PCBA dead Fail Yes NO NO Yes Yes Yes NO NO Earphone Fail check Mini USB port Refer to Charging can not work ...

Page 90: ... 103 7 1 12 LCD ERROR Cause PCB dead or LCD module has broken LCD Testing Restore factory setting Re Download Refer to Updating program is failed Fail No Check LCD FPC and PCBA being connected OK 1 repair ACF LCD FPC No Check LCD module being OK Yes 1 repair ACF LCD FPC 2 Change LCD module No PCBA dead Yes Yes ...

Page 91: ...1 13 CAMERA FAULTY Cause PCB dead or CMOS has broken Camera Testing Restore factory setting Re Download Refer to Updating program is failed Fail No Yes Check CMOS FPC and J401 PCBA being connected OK Repair ACF CMOS FPC Check Camera module being OK 1 Repair ACF CMOS FPC 2 change Camera module PCBA dead Yes Yes No No ...

Page 92: ...le Communications Division Customer Services Version 1 0 14 08 2006 Created by Konrad Szombara Page 92 of 103 7 2 CONNECTORS 7 2 1 Connectors on Board I Battery Connector J201 USB Connector J500 RTC BAT 101 ...

Page 93: ...Mobile Communications Division Customer Services Version 1 0 14 08 2006 Created by Konrad Szombara Page 93 of 103 7 2 2 ACF CONNECTIONS CMOS Connector J401 LCD Connector J402 KEY FPC Conn J302 ...

Page 94: ...Division Customer Services Version 1 0 14 08 2006 Created by Konrad Szombara Page 94 of 103 7 2 3 MAIN BASEBAND IC ON PCB Power Controller ADI6538B U201 Backend IC AIT811 U403 Memory 256 64mb U102 GSM Processor ADI 6527 U101 ...

Page 95: ...Mobile Communications Division Customer Services Version 1 0 14 08 2006 Created by Konrad Szombara Page 95 of 103 MAIN BASEBAND IC s continued Melody IC U503 ...

Page 96: ...obile Communications Division Customer Services Version 1 0 14 08 2006 Created by Konrad Szombara Page 96 of 103 7 2 4 MAIN RF IC s ON PCB BlueTooth IC U1002 Transceiver SKY74117 U1201 PA SKY77328 U1101 ...

Page 97: ...Mobile Communications Division Customer Services Version 1 0 14 08 2006 Created by Konrad Szombara Page 97 of 103 7 2 5 CONNECTORS ON KEYPAD MODULE SIM HOLDER J600 FLASH CARD HOLDER J1 ...

Page 98: ...required Due to the high reliability accompanied by ACF technology it should be a rare occurrence that means a replacement Consider the following diagrams to understand the actual bond As you can see there are many particles spread across the PCB and FPC some are bonded and some are not Because of the many particles an open circuit dry joint is unlikely as if one particle goes open there are many ...

Page 99: ...very much set process when it come to replacing ACF Parts There is a cheap way which is highly unreliable and not authorised and there is the correct way You must consider the type of environment that is required for ACF replacement ESD Dust Ionized Atmosphere Correct Tape or paste Temperature controlled spot Heater ESD Tools ACF Hot Bar Machine Handset Specific Jig All of these Items are essentia...

Page 100: ... Division Customer Services Version 1 0 14 08 2006 Created by Konrad Szombara Page 100 of 103 Handset Specific Jig Paste This equipment along with the correct materials and procedures MUST be used for ACF parts replacement ...

Page 101: ...such would invalidate any such warranty with Toshiba This is not acceptable as it is open to human error along with the fact that it is non ESD compliant and susceptible to dust Removing an ACF components requires some instruction although a simple Spot Heater is sufficient for this Consider the process for ACF removal and preparation Step 1 Dismount ACF by spot heater at a temperature of 130 140 ...

Page 102: ...6 Created by Konrad Szombara Page 102 of 103 Step 2 Smear ACF rework dissolvent around the ACF with a cotton swab Step 3 Wait for the underfill to get hard This will take approximately 30 40 minutes Use black stick to clean the underfill away Then clean with grain alcohol ...

Page 103: ...Communications Division Customer Services Version 1 0 14 08 2006 Created by Konrad Szombara Page 103 of 103 7 4 LABEL SPECIFICATION Please note that the label design can be different dependant on the customer ...

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