Huawei U8510-1 Maintenance Manual
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Huawei U8510-1 Maintenance Manual

Maintenance manual basic
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U8510-1 Maintenance Manual Basic
Prepared by
Reviewed by
Approved by
Huawei Technologies Co., Ltd.
Version V1.0
Product Department
Documentation Team
All rights reserved
Date
2011-04-29
Date
Date

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Summary of Contents for Huawei U8510-1

  • Page 1 U8510-1 Maintenance Manual Basic Version V1.0 Product Department Prepared by Date 2011-04-29 Documentation Team Reviewed by Date Approved by Date Huawei Technologies Co., Ltd. All rights reserved...
  • Page 2 U8510-1 Maintenance Manual Basic Version V1.0 Internal Revision record Revision Section Change Date Revision Cause Author Version Number Description Product Department 2011-04-29 V1.0 Documentation Team 2011-05-28 Huawei confidential. No spreading without permission. Page 2 of 61...

  • Page 3: Table Of Contents

    U8510-1 Maintenance Manual Basic Version V1.0 Internal Contents 1 PRODUCT INTRODUCTION ..........................5   1.1 P RODUCT PPEARANCE ............................. 5   1.2 P RODUCT PECIFICATIONS ..........................5   2 MAINTENANCE INFORMATION GUIDE ......................7   2.1 D OCUMENT PPLICATION ........................... 7  ...
  • Page 4 U8510-1 Maintenance Manual Basic Version V1.0 Internal 11 FUNCTIONAL TEST ............................59   11.1 K EYPAD NTRODUCTION ..........................59   11.2 MMI T ................................59   11.3 V OICE ............................61   2011-05-28 Huawei confidential. No spreading without permission. Page 4 of 61...

  • Page 5: Product Introduction

    U8510-1 Maintenance Manual Basic Version V1.0 Internal Product Introduction 1.1 Product Appearance 1.2 Product Specifications Items Content Description Shape PDA-type Dimensions 110mm(L) × 56.5mm(W) × 11.2mm(T) Weight About 105g (including the battery) WCDMA/HSDPA: 3GPP FDD Release 99, Release 5 (International...
  • Page 6 U8510-1 Maintenance Manual Basic Version V1.0 Internal Items Content Description GSM/GPRS 1900MHz 1850MHz~1910MHz/1930MHz~1990MHz(Uplink/Downlink) WCDMA 900MHz WCDMA 900MHz: 880-915 MHz (UL), 925-960 MHz (DL) WCDMA 2100MHz 1920MHz~1980MHz/2110MHz~2170MHz(Uplink /Downlink) External interface Standard Micro USB, MicroSD Card slot, 3.5mm headset SIM/USIM card interface standard 6-pin SIM card interface, supporting the 1.8/3V USIM card...

  • Page 7: Maintenance Information Guide

    Maintenance Information Guide 2.1 Document Application This document provides instructions for maintenance of Huawei products. This manual is Huawei proprietary and is only permitted to be used by authorized service partners. Shall there be any mistakes found in this document, kindly contact our customer service personnel.

  • Page 8: Explosive View Of Product

    U8510-1 Maintenance Manual Basic Version V1.0 Internal Explosive View of Product This exploded view is only applied to show phone frame. It is not regarded as a reference for applying spare parts. Description Quantity LENS_PROTECT_FILM Front_Cover ANTENNA_GPS LCD_Support_Asm PCBA Shielding_Cover...
  • Page 9 U8510-1 Maintenance Manual Basic Version V1.0 Internal Description Quantity Volume key TFHide_Film POWER_KEY POWER_KEY_ADHE_Glue Battery Cover Battery Product_Nameplate BACK_COVER Screws SUB_ADHE_Glue Gasket_IC Gasket_MIC HOME _KEY_DOME HOME_KEY_ASM_ 2011-05-28 Huawei confidential. No spreading without permission. Page 9 of 61...

  • Page 10: Location Of Components On The Main Board

    U8510-1 Maintenance Manual Basic Version V1.0 Internal Location of Components on the Main Board X301 Crystal 32.768 U3401 Power module U3301 TX Filter- U3402 TX Filter- -WCDMA900MHz WCDMA2100MHz WCDMA900MHz Failure symptom: Failure symptom: Failure symptom: Failure symptom: No power on...
  • Page 11 U8510-1 Maintenance Manual Basic Version V1.0 Internal U502 CMOS-8-D J1201 Battery Socket U901 DC-DC chip J1401 SIM Socket Triggering Device Failure symptom: Failure symptom: Failure symptom: Failure symptom: No power on, No power on, SIM card failure No power on...
  • Page 12 U8510-1 Maintenance Manual Basic Version V1.0 Internal Description Location D1001,D1002,D1201,D 15040238 Transient Suppressing Diodes-6V-14V-10W-12A 901,D902 D1301,D1302,D1401,D 15010251 Schottky Diode-30V-0.2A-0.5V-SOD523 15040031 Zener,30V,0.225W,SOT-23 D1303 14240181 BTB Connector-Fmale-24Pin-0.4mm-SMT J1001,J901 14240199 BTB Connector,Female,10Pin,0.4mm,0.9mm J902 14240246 Headphone Connector,3.5mm,6pin,Side plugging,SMT J1101 14240100 Battery Socket-3PIN-Side Contact-2.8mm-1.4mm-With Position Peg...
  • Page 13 U8510-1 Maintenance Manual Basic Version V1.0 Internal Description Location 47100277 Power Module,880~915MHz,27.5,3x3 QFN U3401 13010189 SAW Filter-897.5MHz-2.7dB-100V(MM)-SFLT5-0101 U3402 Duplexer,TX:880~915MHz/RX:925-960MHz,2.2dB,2.6dB,57dB/48 13080067 U3404 dB,2520 13010262 SAW filter,2140MHz,3.0dB,50V,1411 U3702 Terminal Dedicated IC,WCMDA/GSM Radio 39200084 U3801 Transceiver(RTR6285) 47090042 GPS LNA-0.5~3GHzz-16.8dB U4001 RF switch,0.5~3.0 47140049 U4104 GHz,SP3T,0.45dB,1.22,20dB,TSON,200~260V(HBM)
  • Page 14 U8510-1 Maintenance Manual Basic Version V1.0 Internal Description Location 22030038 Receiver,32ohm,4.8*10*2.2mm,small,thin,NXP 51633123 Gasket_MIC 51632949 TFHide_Film 04050207 RF Coaxing Cable,61mm,fit 14240060,0.061m 23060051 Camera Module-CMOS-2048*1536-FF-Narrow BTB 51633134 POWER_KEY_ADHE 51633148 LCD_FPC_FILM 23040186 LCD Module,Single Display,TFT,,Without Touch Screen,BTB 22020081 Speaker,8ohm,0.25W,8*12*2.5,SpringContact 27160628 GPS Antenna,U8510-0,1570MHz-1580MHz,>0dBi 51666309...

  • Page 15: Software Upgrade

    U8510-1 Maintenance Manual Basic Version V1.0 Internal Software Upgrade 5.1 Preparation for Upgrade Item Contents Remark Battery The battery level shall be no less than two bars. Micro SD card 512M at least. Upgrade Environment For copy upgrade file. HDU8512002V100R001C00B816 The version is only for your information.
  • Page 16 U8510-1 Maintenance Manual Basic Version V1.0 Internal 2011-05-28 Huawei confidential. No spreading without permission. Page 16 of 61...

  • Page 17: Force Download

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 4. Begin upgrade the main package, the handset will restart automatically. 5. Upgrade the customized package, the upgrade procedure is the same as upgrade main package. 5.3 Force Download 1. Format micro SD card or delete its content.

  • Page 18: Check The Firmware Version

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 5.4 Check the Firmware Version To check the version Settings -> About phone -> Build number 5.5 Error Handling Error 1 During SD card upgrade, the key pad led flash very frequently (two flashes per second), and the progress bar stop, that means an error occurs.

  • Page 19: Maintenance Tools

    U8510-1 Maintenance Manual Basic Version V1.0 Internal Maintenance Tools Name: Constant-temperature Hot Air Gun Purpose: Heat component. Name: Soldering Iron Purpose : Repair soldering Name: DC Power Supply Purpose: Supply voltage and current. Name: Soldering Station Purpose: Fix main board.
  • Page 20 U8510-1 Maintenance Manual Basic Version V1.0 Internal Name: Tool kit Purpose : Assemble and Disassemble tool Name: Electronic Screw Driver Purpose : Assemble and Disassemble tool 2011-05-28 Huawei confidential. No spreading without permission. Page 20 of 61...

  • Page 21: Disassembly Procedure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal Disassembly Procedure 1. Make sure the ESD antistatic wrist strap 2. Disassemble procedure is shown below. connect to the ground is normal. 3. Remove the Battery cover. 4. Remove the Battery. 5. Remove the six screws.
  • Page 22 U8510-1 Maintenance Manual Basic Version V1.0 Internal 7. Loosen the buckles between the handset cover 8. Remove the back cover. around. 9. Disassemble BTB connecter of TP. 10. Disassemble the front cover. 11. Protect the LCD with film. 12. Protect the lens with film.
  • Page 23 U8510-1 Maintenance Manual Basic Version V1.0 Internal 13. Remove the HOME_KEY. 14. Remover the receiver. 15. Remove the GPS antenna. 16. Disassemble the RF cable. 17. Disassemble BTB connecter of the FPC. 18. Remove the outer camera. 2011-05-28 Huawei confidential. No spreading without permission.
  • Page 24 U8510-1 Maintenance Manual Basic Version V1.0 Internal 19. Disassemble BTB connecter of the LCD. 20. Remove the LCD. 21. Pick up FPC of the power key. 22. Disassemble FPC of the power key. 23. Remove FPC of the power key.
  • Page 25 U8510-1 Maintenance Manual Basic Version V1.0 Internal 25. Disassemble the buckle to remove the main board. 26. Remove the RF cable. 27. Remove the FPC. 28. Disassemble the volume key dome. 30. Disassembly procedure is completed. 29. Remove the speaker.

  • Page 26: Assembly Procedure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal Assembly Procedure 1. Make sure the ESD antistatic wrist strap 2. Assemble procedure is shown below. connect to the ground is normal. 4. Install the main FPC. 3. Install the FPC of the volume key.
  • Page 27 U8510-1 Maintenance Manual Basic Version V1.0 Internal 7. Assemble BTB connecter of the main FPC. 8. Assemble BTB connecter of the power key FPC. 9. Fix the speaker FPC. 10. Install the LCD. 11. Assemble BTB connecter of the LCD.
  • Page 28 U8510-1 Maintenance Manual Basic Version V1.0 Internal 13. Install BTB connecter and the RF cable to the 14. Install the HOME key to the front cover. sub_PCB. 15. Install the GPS antenna. 16. Install the receiver. 18. Rip off the protective film from lens.
  • Page 29 U8510-1 Maintenance Manual Basic Version V1.0 Internal 19. Rip off the protective film from LCD. 20. Install the main board and LCD module to the front cover. 21. Fix the main board and the LCD module. 22. Assemble BTB connecter of the main FPC.
  • Page 30 U8510-1 Maintenance Manual Basic Version V1.0 Internal 25. Assemble the six screws on the back cover. 26. Assemble the four screws on the front cover. 27. Assemble the battery. 28. Assemble the battery cover. 29. Assembly procedure is completed. 2011-05-28 Huawei confidential.

  • Page 31: Trouble Shootings Of Common Faults

    U8510-1 Maintenance Manual Basic Version V1.0 Internal Trouble shootings of Common Faults Before performing the following troubleshooting operations, ensure the software of the terminal is in good condition and restored to default settings. 9.1 Principle Instruction The main chip of system is MSM7227. Include three function modules, baseband interface management module MSM7227, power management module PM7540, RF IC RTR6285.

  • Page 32: N Opower On

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.2 No Power On 9.2.1 High Current (DC power supply) Analyzing： High current is caused by the short of power supply circuit, when use the DC power supply, the current is about 500mA or more. This fault consist of major reasons, the VBAT is short with ground.
  • Page 33 U8510-1 Maintenance Manual Basic Version V1.0 Internal VREG_TCXO U201 2.85V Test C227 U601 VBAT VREG_MSMC U3501 3.7-4.2V U201 1.2V Test C3501 Test L204 U3101 VREG_MSMP VBAT U201 2.6V U3302 3.7-4.2V Test C221 Test C3302 U3501 U201 U401 VREG_MSME U201 1.8V...

  • Page 34: Low Current (Dc Power Supply)

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.2.2 Low Current (DC power supply) Reference Figure 9-1 Low current Download the latest software version, check if it is normal? Measure whether Replace faulty the output voltage of components U201&U202 are normal?

  • Page 35: Charge Failure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.3 Charge Failure Analyzing：The IO Connector damaged causes the failure usually. Reference Figure 9-2 Charge failure Measure whether the voltage Replace the J207 of J207 is about 5V? Measure whether the voltage Replace the U201...
  • Page 36 U8510-1 Maintenance Manual Basic Version V1.0 Internal J207 VCHG J207 Test Pin1 VBAT J1201 3.7-4.2V Test Pin1 VPH_PWR Q202 4.2V Test Pin2 J1201 U901 Q202 VREG_MSMA U901 4.2V Test R902 U202 VREG_USB U202 3.3V Test Pin5 Figure 9-2 2011-05-28 Huawei confidential. No spreading without permission.

  • Page 37: Keyboard Failure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.4 Keyboard Failure Keypad failure Check whether dome is ok？ Clean or replace Check whether keypad Replace the FPC is normal？ keypad FPC Replace the U401 2011-05-28 Huawei confidential. No spreading without permission.

  • Page 38: Vibration Failure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.5 Vibration Failure Reference Figure 9-3 Vibration failure Supply voltage (3V) Replace the for Motor, and then check Motor whether it is vibrate? Measure whether Replace the the D1401 is normal? D1401 Replace the U201...

  • Page 39: Sim Card Failure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.6 SIM Card Failure Reference Figure 9-4 SIM card failure Check whether Re-solder or replace J1401 SIM socket J1401 is normal？ Check whether Replace the Z1401 is normal? Z1401 Replace the U401 Z1401 ESD_EMI Filter...

  • Page 40: Sd Card Failure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.7 SD Card Failure Reference Figure 9-4 2011-05-28 Huawei confidential. No spreading without permission. Page 40 of 61...

  • Page 41: Display Failure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.8 Display Failure Reference Figure 9-5 Display failure Check whether Re-solder and BTB connector J1301 is replace J1301 normal? Measure whether Replace the power supply for LCD is U201 normal? Replace the LCD,...

  • Page 42: Touch Panel Failure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.9 Touch Panel Failure Reference Figure 9-5 TP failure Upgrade TP, check whether it is normal? Measure whether Re-solder and J901 is normal? replace J901 Replace the TP module, check whether it is normal?

  • Page 43: Camera Failure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.10 Camera Failure Reference Figure 9-6 Camera failure Measure whether the voltage of VREG_GP1/6 Replace the U201 are normal? Replace camera module, then check whether it is normal? Check whether J1001 is Re-solder or...

  • Page 44: Audio Malfunction

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.11 Audio Malfunction 9.11.1 No Ring Tone Reference Figure 9-7 No ring tone Measure whether Replace the the impedance value of speaker speaker is about 8Ω? Measure whether Replace faulty main FPC is damaged?

  • Page 45: Voice Transmitting Failure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.11.2 Voice Transmitting Failure 9.11.3 Receiver Failure Reference Figure 9-8 2011-05-28 Huawei confidential. No spreading without permission. Page 45 of 61...

  • Page 46: Earphone Failure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.11.4 Earphone Failure Reference Figure 9-8 Earphone failure Inset a normal earphone, Replace the check whether earphone is J1101 identified? Measure the U1101, Replace the check whether it is normal? U1101 Replace the...

  • Page 47: Wifi&Bt Failure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.12 WIFI&BT Failure Reference Figure 9-9 WIFI&BT Failure Check whether Replace the the antenna is normal? antenna Replace Z4101, check whether the function is normal? Replace U4104, check whether the function is normal?
  • Page 48 U8510-1 Maintenance Manual Basic Version V1.0 Internal Z4101 Ceramics Filter 3.7-4.2V U4201 VBAT WLAN/Bluetooth U4201 chip X4101 Crystal,37.4MHz U4201 VDDIO –Test U4201 2.6V C4201 U4104 RF switch Figure 9-9 Z4001 SAW Filter U3801 Transceiver(RTR6285) / U4001 LNA-GPS U3801 VDD –Test U3801 2.6V...

  • Page 49: Gps Failure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.13 GPS Failure Reference Figure 9-10 GPS Failure Check whether Replace the the antenna is normal? antenna Replace Z4002& Z4001, check whether the function is normal? Replace the Measure whether the U4001 is...

  • Page 50: Rf Failure

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.14 RF Failure 9.14.1 RF Receiving Failure-WCDMA 2100MHz&900MHz Reference Figure 9-11 RF receiving failure Upgrade the software， measure whether it is normal? Measure whether Replace the the RF power supply voltage U201 is normal?
  • Page 51 U8510-1 Maintenance Manual Basic Version V1.0 Internal Power Supply For RF： VREG_RFRX1 2.1V VREG_RFTX 2.7V VREG_MSMP 2.6V U3404 Duplexer-W900MHz U3304 Duplexer-W2100MHz U3404 J3204 U3304 U401 U201 U3202 U3702 filter-WCDMA VREG_MSMP VREG_RFTX U3801 2.6V U3801 2.7V Test C3927 Test point U3801...

  • Page 52: Rf Receiving Failure-Gsm

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.14.2 RF Receiving Failure-GSM Reference Figure 9-11 2011-05-28 Huawei confidential. No spreading without permission. Page 52 of 61...

  • Page 53: Rf Transmitting Failure-Wcdma 2100Mhz

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.14.3 RF Transmitting Failure-WCDMA 2100MHz Reference Figure 9-11&9-12 Transmitting failure Upgrade the software. Then check whether it is normal? Measure RF power supply Replace the voltage whether is normal? U201 Replace U3202, check whether it is normal？...
  • Page 54 U8510-1 Maintenance Manual Basic Version V1.0 Internal U601 VBAT U3501 3.7-4.2V Test C3501 VBAT U3302 3.7-4.2V Test C3302 U3501 U201 U401 U3302 U3401 TX SAW filter - U3301 W 2100MHz VBAT U3401 3.7-4.2V Test C3401 TX SAW filter - U3402...

  • Page 55: Rf Transmitting Failure-Wcdma 900Mhz

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.14.4 RF Transmitting Failure-WCDMA 900MHz Reference Figure 9-11&9-12 2011-05-28 Huawei confidential. No spreading without permission. Page 55 of 61...

  • Page 56: Rf Transmitting Failure-Gsm

    U8510-1 Maintenance Manual Basic Version V1.0 Internal 9.14.5 RF Transmitting Failure-GSM Reference Figure 9-11&9-12 Transmitting failure Upgrade the software. Then check whether it is normal? Measure RF power supply Replace the U201 voltage whether is normal? Replace U3202, check whether it is normal？...

  • Page 57: Weld Points Indicator Chart For Pcb And Bga Chip

    U8510-1 Maintenance Manual Basic Version V1.0 Internal Weld Points Indicator Chart for PCB and BGA Chip Empty Points 2011-05-28 Huawei confidential. No spreading without permission. Page 57 of 61...
  • Page 58 U8510-1 Maintenance Manual Basic Version V1.0 Internal Empty Points 2011-05-28 Huawei confidential. No spreading without permission. Page 58 of 61...
  • Page 59 U8510-1 Maintenance Manual Basic Version V1.0 Internal Functional Test 11.1 Keypad Introduction Power key Volume up key Volume down key Menu key Search key Back key Home key 11.2 MMI Test Input *#*#2846579#*#* to enter the menu of MMI Test_Ⅱ, then pressing volume down key to start MMI test.
  • Page 60 U8510-1 Maintenance Manual Basic Version V1.0 Internal Item Test method and information The LCD will display white screen. The LCD will display black screen. LCD test The LCD will display colorful lines. The LCD will display white lines color, and its luminance will change all the time.
  • Page 61 U8510-1 Maintenance Manual Basic Version V1.0 Internal 11.3 Voice Call Test 1. Insert USIM card to mobile phone, press and hold Power key to power on. 2. Check whether the signal strength is changed normally in normal network environment. 3. Dial a fixed-line number to test the voice quality during a call.

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