CSL BB9300 Service Manual
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CSL BB9300 Service Manual

CSL BB9300 Service Manual

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SERVICE MANUAL
1. Main Functions:
-Audio Play/Video Recording
-Master /SLAVE GSM 900/1800MHz
-MMS/WAP
-Bluetooth 1.2
2. Main Selling Points
-BT communication
-FM supporting
-GPRS Class 12
-Support MP3, MP4
3. Other Functions
-Slide-Rotating
4. Spec
-SIZE 75X70X15mm
2.4" TFT 26K
- 1 -

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  • Page 1 SERVICE MANUAL 1. Main Functions: -Audio Play/Video Recording -Master /SLAVE GSM 900/1800MHz -MMS/WAP -Bluetooth 1.2 2. Main Selling Points -BT communication -FM supporting -GPRS Class 12 -Support MP3, MP4 3. Other Functions -Slide-Rotating 4. Spec -SIZE 75X70X15mm 2.4" TFT 26K - 1 -...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION………………………………………………………………………………..3 Chapter 1 EXPLODED VIEW AND COMPONENT DISPOSAL………………………….4 EXPLODED DIAGRAM………………………………………………………………………….……...4 DISASSEMBLY AND ASSEMBLY …………………………………………………………….………5 SERVICE TOOLS………………………………………………………………………………...5 DISASSEMBLE…………………………………………………………………………………...7 ASSEMBLY………………………………………………………………………………………..9 Chapter 2 SYSTEM BLOCK DIAGRAM……………………………………………………..11 Chapter 3 INSTRUCTION OF THE UNIT CIRCUIT………………………………………...12 Chapter 4 ACTUALL BOARD…………………………………………………………….….21 SIDE A (MASTER)…………………………………………..……………………………………….….21 SIDE B (SLAVE)……………………………………………………………………………………...….21 Chapter 5 TROUBLESHOOTING……………………………………………………………22 Chapter 6 SOFTWARE INSTRUCTION OF SW UPDATE………………………………..28...
  • Page 3 manual must be used only by authorized service suppliers. The content of it is confidential. Please note that provides other guidance documents for service suppliers. Follow these regularly and comply with the given instructions. While every effort has been made to ensure the accuracy of this document, some errors may exist.

  • Page 4: Chapter 1 Exploded View And Component Disposal

    Chapter 1 EXPLODED VIEW AND COMPONENT DISPOSAL EXPLODED DIAGRAM - 4 -...

  • Page 5: Disassembly And Assembly

    DISASSEMBLY AND ASSEMBLY SERVICE TOOLS Iron 850 heater Oscillograph Voltage regulator Multimeter Constant temperature heater - 5 -...
  • Page 6 Software download cable Computer and software download cable Microscope Solder wire Wrist grounding strap soldering paste Antistatic gloves Solder wire, soldering paste Wrist grounding strap, Antistatic gloves Plate Screw driver Metal tweezers MTK series CPU plate SRT-6 Metal tweezers, Screw driver, SRT-6 Plates - 6 -...

  • Page 7: Disassemble

    DISASSEMBLY Remove 4 screws with screw driver. Take out the battery cover. Prize up the antenna by pick Prize up SIM buckle Prize up D cover with pick Remove 2 screws with tweezer - 7 -...
  • Page 8 ⑺ Take down FPC connector with pick ⑻ Take off PCBA by tweezer ⑽ Take off 4 screws by tweezer ⑼Take out C cover with hands ⑾ Prize up B cover with tweezer ⑿ Stick LCD film - 8 -...
  • Page 9 ⒀ stick lens protection film ⒁ Take off receiver by tweezer ⒂ Separate LCD with pick ⒃ Take off the screw with tweezer ⒄ separate LCD PCBA with tweezer ⒅ Take off FPC Finish - 9 -...

  • Page 10: Assembly

    ASSEMBLY ⑴ Place LCD PCBA in A cover ⑵ Lock the screw ⑶ Install LCD ⑷Install receiver with tweezer ⑸ install B cover ⑹ Lock the screws with tweezer - 10 -...
  • Page 11 ⑺ Install cover C ⑻ Place main PCBA in C cover ⑼ Tighten the FPC connector ⑽ Lock 3 screws with tweezer ⑾Connect FPC with PCBA board ⑿ Install the antenna - 11 -...
  • Page 12 ⒀ Lock 4 screws ⒁ Button the battery cover Finish - 12 -...

  • Page 13: Chapter 2 System Block Diagram

    Chapter 2 SYSTEM BLOCK DIAGRAM CPU (MT6235) - 13 -...

  • Page 14: Chapter 3 Instruction Of The Unit Circuit

    Chapter 3 INSTRUCTION OF THE UNIT CIRCUIT 1. Instruction of the important ICs : CPU is MT6235 which is the kernel IC of whole main circuit. It also integrates subsystems of channel coder and decoder, cross and de-cross, encryption and decryption. It takes charge of process of voice and every parts of mobile, such as charge, liberation, LED etc.
  • Page 15 FM circuit U204 is FM receiving module. FM_ANT is used to receive the radio signal from the antenna, FM_VCC is the 2.8Vpower supply, FM32KHz is the reference clock, GPIO26 and GPIO31 is control signal from the baseband CPU. FM ANT FM output - 15 -...
  • Page 16 RF circuit RF part generally means the analog RF and IF process system ,including Antenna system、TX path、RX path、Analog modem and Frequency Synthesizer . RF Circuit deals with the RX and TX of wireless signal, with responsibility for the bidirectional transmission of speech and data between the MS and BS through the air interface.
  • Page 17 BT circuit Bluetooth IC processor is MT6612BN/A.. MT6612 is 5mm x 5mm 40-lead (0.5mm pitch) QFN, a high-integrated Bluetooth IC, including rich function and strong disposal capability, and high performance transceiver. 32MHz clock BT ANT - 17 -...

  • Page 18: Chapter 4 Actuall Board

    Chapter4 ACTUALL BOARD SIDE A J202 T-flash connector J303 Earphone U301 Flash U702 FM IC U101 CPU J302 I/O connector J703 SIM slot U501 RF IC J201Battery U503 antenna switch module connectorn J501 RF connector J702 SIM slot U502 RF PA IC SIDE B Camera U801 BT IC...

  • Page 19: Chapter 5 Troubleshooting

    Chapter5 TROUBLE SHOOTING Test flowchart of SIM card Could not read SIM card If points of Clean or replace SIM are OK SIM socket If SIM card is Replace SIM invalidation card Power may be damaged. Test if voltage of J403 pin4/5 at exactly Connect to steady-voltage power on is 3V.
  • Page 20 Test flowchart of can not power on (for master) Could not power Re-solder or replace If battery point J103 of battery of J103 is OK Replace Connect power battery supply, if it can be power on If current is 30-40Mx Update software to the latest version May be MT6235 is fault...
  • Page 21 The test flowchart of receiver No sound in receiver Check if LS202 has Handfree sundries or damaged Repulse LS202 or If receiver is connect Replace clean it OK or not receiver Remove receiver and test it by Replace multimeter’s beep function. If there is receiver sound like ‘sasa’...
  • Page 22 Test flowchart of incoming call with no ring. No sound of bell Remove headphone test multimeter’s beep function. If there is Use *#84666*# No. sound like ‘sasa’ from 7 to hear if bell has headphone sound Replace bell Cancel If it is libration / components libration /mute mute mode.
  • Page 23 Test flowchart of no display or display abnormally. No display or display abnormal when power on Check LCD broken or Replace LCD not or leak f display interface Clean connects OK re-solder J603 Replace LCD Update software to the latest version Replace or re-solder MT6235 - 23 -...
  • Page 24 Test flowchart of download failed Can not download Check conditions outside mobile, such If mobile is configuration of software, power on cable, power, PC etc. Check if J103 connector Replace or re-configure Replace false solder re-solder J103 damaged connector Disconnect cable Connect download cable.
  • Page 25 Chapter6 Instruction of SW update 1. Install the USB driver without the USB cable plugged into the computer. 2. After it is ok, plug the cable then check the device manager as the picture below: - 25 -...
  • Page 26 3. Open SW updating platform FlashTool_v3.0848.00 Double click the icon FlashTool. Choose the port which the cable be connected to the computer. 4. Select Format FAT (DISABLED). - 26 -...
  • Page 27 5. Choose “Auto Format FAT”, and don’t select “Validation”. 6. Click “Download Agent” to transfer “MTK_AllInOne_DA.bin” file. Double click - 27 -...
  • Page 28 7. Update with the update cable. (The actually file name please refer to your software) (1) As showed bellow, click “Scatter-loading” to transfer “****.txt” file in the folder of the new software. Double click Double click - 28 -...
  • Page 29 (2) Here, ROM/Boot files can be selected automatically. Don’t need to choose. (3) Making sure the phone is powered off and the battery is taken out. Click “download”, then link the cable for the master to the phone, insert the battery and keep pressing the power-on button for a while, soon the red progressing bar will occur.
  • Page 30 (4) As showed the phone is checked. (5) As showed the software is written in. - 30 -...
  • Page 31 (6) This icon shows the finish of the downloading. - 31 -...

  • Page 32: Chapter 7 Function Test

    Chapter7 FUNCTION TEST Press “#84666*#” to check these items in stand by mode: 1. Version: to check the version of the software 2. Echo Loop: blow to the mic, the receiver will have a sound 3. Key: press relevant keys appear in the screen 5.

  • Page 33: Chapter 8 Parameter Setting Instruction

    Chapter8 PARAMETER SETTING INSTRUCTION China mobile as an example, other countries please inquire the local operator 1. WAP parameter setting instruction Data Account Process: Menu→Services→Data Account GSM Data: Account Name: (default) Number: 17266 User Name: WAP Password: WAP Line Type: ISDN Speed: 9.6 Kbps DNS: 010.000.000.172 GPRS:...
  • Page 34 E-Mail Address: Full E-Mail Address of the user’s Password: Password of the use’s E-Mail Incoming server: pop3.126.com (depend on the user’s Email website ) E-Mail Address: Full E-Mail Address of the user’s Password: Password of the use’s E-Mail After setting as above, the MMS is ready. - 34 -...

  • Page 35: Chapter 9 Catcher Instruction

    Chapter9 CATCHER INSTRUCTION General: The figures in this document help to understanding, and they may not be exactly the same as showed in your computer. Contact us please when you have any queries. 1 Install the USB driver if not yet. 1.1 Run the USB driver without the upgrade cable plugged into the computer.
  • Page 36 2 set the phone to prepare for using Catcher. Open the phone and input “*#84666364*#” to enter the setting screen. In sequence enter DEVICE, UART, and TST config. Choose UART1 and Clink done, and then the phone restarts. After the phone restarts, power it off. 3 choose the Database of the phone’s software.
  • Page 37 Figure 5 3.2 Clink the button “...” in figure 5 to choose the Database file of the master phone or slave phone (for example “BPLGUInfoCustomSrcP_MT6226M_S01_X6+_FLP_06_12_V3_2-TN-MP-5B-QN” file ). Refer to figure 6 showed as below: Figure 6 When you examine the master phone’s problems, choose the master phone software’s database file, and when the slave phone’s problems, the slave phone’s database file.
  • Page 38 Figure 8 4.2 clink button “Configure RS232” in figure 9, then figure 10 occurs, choose the right COM in Port option, and clink OK. Figure 9 - 38 -...
  • Page 39 Figure 10 5 use the Catcher to record debug information 5.1 clink the button “connect” in figure 11, clink the button “Default Filter” in figure12, select “Field Trial” button in figure 13, and then clink “set” in Figure13. Figure 11 - 39 -...
  • Page 40 Figure 12 Figure 13 5.2 Clink “Filter” in figure 14, choose some items in figure 15, and then clink ok in figure 15. (Please query us if you need to choose the filter settings) - 40 -...
  • Page 41 Figure 14 Figure 15 5.2 connect the upgrade cable to the phone and power on the phone. If the database in the phone is not exactly the same as the chose database in Catcher, figure 16 occurs (for example, different software versions and wrong cable connectors lead to the difference between the databases).
  • Page 42 Figure 16 5.3 The catcher records primitive information as showed in figure 17. Clink the button “clear” in figure 18 to clear the useful primitive information. Then the phone user carries on some operations to the phone to make the failures recur.
  • Page 43 Figure 18 Figure 19 - 43 -...
  • Page 44 Figure 20 - 44 -...
  • Page 45 www.s-manuals.com...

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