Sony Xperia S LT26i Troubleshooting Manual
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Sony Xperia S LT26i Troubleshooting Manual

Sony Xperia S LT26i Troubleshooting Manual

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Troubleshooting Guide

- mechanical -
Xperia S
LT26i, LT26ii, SO-02D
1257-2931 Rev 6
Sony Mobile Communications AB – Company Internal

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Summary of Contents for Sony Xperia S LT26i

  • Page 1: Troubleshooting Guide

    Troubleshooting Guide - mechanical - Xperia S LT26i, LT26ii, SO-02D 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal...

  • Page 2: Table Of Contents

    1.15.1 Compass fails .................... 32 1.16 Accelerometer ..................33 1.16.1 Accelerometer test fails ................33 1.17 Gyroscope ..................34 1.17.1 Gyroscope test fails .................. 34 1.18 Ambient Light Sensor ................ 35 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 2(57)
  • Page 3 1.32 HandsFree by Wire ................54 1.32.1 Connection to Portable HandsFree fails ..........54 1.33 Data Communication ................. 56 1.33.1 Data transfer via System Connector fails ..........56 Revision History ................57 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 3(57)

  • Page 4: Problem Areas

    4. Check current draw in off mode by using “Dummy Battery” (max 1 mA) 5. Replace Board Check: Inspect the Key On/Off. Action: 1. Refer to section 1.2.4 ‘Key On/Off’. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 4(57)

  • Page 5: Keys

    If the Key Camera is damaged – replace it. Check: Inspect the Key Camera push switch on the Main FPC. Action: If (a) or (b) is dirty or clogged – clean it. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 5(57)

  • Page 6: Key Volume

    Main FPC. 2. Replace board. 1.2.3 Key Volume Check: Inspect the Key Volume on the Cover Front Assy. Action: If the Key Volume is damaged – replace it. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 6(57)

  • Page 7: Key On/Off

    1. If the FPC Main Assy or its BtB connector is damaged – replace the FPC Main Assy. 2. Replace board. 1.2.4 Key On/Off Check: Inspect the Key On/Off on Cover Front Assy. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 7(57)
  • Page 8 Check: Inspect the FPC Jack Assy. Action: 1. If the FPC Jack Assy or its BtB connector is damaged – replace the FPC Jack Assy. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 8(57)

  • Page 9: Touch Screen

    2. If dirty or oxidized – clean both sides of the BtB connector. Check: Inspect the Cover Front Assy. Action: If the Cover Front Assy or its BtB connector is damaged – replace the Cover Front Assy. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 9(57)
  • Page 10 2. If dirty or oxidized – clean both sides of the BtB connector. Check: Inspect the Main FPC. Action: 1. If the FPC Main Assy or its BtB connector is damaged – replace the Main FPC. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 10(57)

  • Page 11: Display

    2. If dirty or oxidized – clean both sides of the BtB connector. Check: Inspect the Cover Front Assy. Action: If the Cover Front Assy or its BtB connector is damaged – replace the Cover Front Assy. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 11(57)
  • Page 12 2. If dirty or oxidized – clean both sides of the BtB connector. Check: Inspect the Main FPC. Action: 1. If the FPC Main Assy or its BtB connector is damaged – replace the Main FPC. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 12(57)

  • Page 13: Led/Illumination

    2. If dirty or oxidized – clean both sides of the BtB connector. Check: Inspect the Illumination LED on the FPC Jack Assy. Action: If dirty – clean it. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 13(57)

  • Page 14: Key Illumination

    2. If the window is damaged – replace the Cover Front Assy. Check: Inspect the LED window on Cover Transparent Assy. Action: 1. If dirty – clean it. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 14(57)
  • Page 15 1. If dirty – clean it. Check: Inspect the Main FPC. Action: 1. If the FPC Main Assy or its BtB connector is damaged – replace the Main FPC. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 15(57)

  • Page 16: Speaker

    Inspect the Loudspeaker‘s mesh on the Rear Frame Assy. Action: 1. If clogged – clean the speaker mesh. 2. If the mesh is damaged – replace the Rear Frame Assy. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 16(57)
  • Page 17 Inspect the Loudspeaker’s pins on the Rear Frame Assy and the pads on the Main PBA. Action: 1. If dirty – clean them. 2. If the Loudspeaker is damaged – replace the Loudspeaker. 3. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 17(57)

  • Page 18: Earphone

    Inspect the Ear Speaker pins and the pads on the Main PBA. Action: 1. If dirty – clean them. 2. If the Ear Speaker is damaged – replace the Ear Speaker. 3. Replace board 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 18(57)

  • Page 19: Microphone

    Inspect the Microphone’s mesh on the Main Antenna. Action: 1. If clogged – clean the Microphone mesh. 2. If the mesh is damaged – replace the Main Antenna. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 19(57)
  • Page 20 Assy. Action: If dirty – clean them. Check: Inspect the PBA Bottom five pins. Action: If the PBA bottom five pins are damaged – replace the PBA bottom. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 20(57)
  • Page 21 2. If dirty or oxidized – clean both sides of the BtB connector. Check: Inspect the Main FPC. Action: 1. If the FPC Main Assy or its BtB connector is damaged – replace the Main FPC. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 21(57)

  • Page 22: Secondary Microphone

    2. If the Cover Rear Assy is damaged – replace the Cover Rear Assy. Check: Inspect the Cushion of Speaker on the Rear Frame Assy. Action: If the Cushion of Speaker is damaged – replace it. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 22(57)
  • Page 23 2. If dirty or oxidized – clean both sides of the BtB connector. Check: Inspect the PBA NFC. Action: 1. If the PBA NFC or its BtB connector is damaged – replace the PBA NFC. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 23(57)

  • Page 24: Vibrator

    2. If the Carrier Vibrator is damaged – replace it. Check: Inspect the FPC Main Assy five pins and the ten pads on the Cover Transparent Assy. Action: If dirty – clean them. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 24(57)
  • Page 25 2. If dirty or oxidized – clean both sides of the BtB connector. Check: Inspect the Main FPC. Action: 1. If the FPC Main Assy or its BtB connector is damaged – replace the Main FPC. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 25(57)

  • Page 26: Camera

    1. If not properly connected – disconnect and reconnect. 2. If dirty or oxidized – clean both sides of the BtB connector. Action: 1. If damaged – replace the FICTIVE Camera 13.1 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 26(57)

  • Page 27: Secondary Camera

    Inspect the Camera Window on Cover Front Assy. Action: 1. If dirty or clogged – clean the window. Action: 2. If scratched or damaged – replace the Cover Front Assy. 3. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 27(57)

  • Page 28: Flash Led

    1.11.1 Flash LED not flashing Check: Inspect the flash lens window on the Rear Frame Assy. Action: 1. If scratched or damaged – replace the Rear Frame Assy. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 28(57)

  • Page 29: Bluetooth And W-Lan Malfunctions

    Ant GPS and the contact pins on the Main PBA. Action: 1. If dirty or oxidized – clean the pads and pins. 2. If the pads are damaged – replace the Ant GPS. 3. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 29(57)

  • Page 30: Nfc

    If the NFC Antenna is damaged – replace the NFC Antenna. Check: Inspect the PBA NFC. Action: 1. If the PBA NFC or its BtB connector is damaged – replace the PBA NFC. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 30(57)

  • Page 31: Gps

    Main PBA. Action: 1. If dirty or oxidized – clean the pads and pins. 2. If the pads are damaged – replace the Ant GPS. 3. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 31(57)

  • Page 32: Compass

    Trouble Shooting Guide Repair Instruction Mechanical/ Problem Areas 1.15 Compass 1.15.1 Compass fails Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 32(57)

  • Page 33: Accelerometer

    Trouble Shooting Guide Repair Instruction Mechanical/ Problem Areas 1.16 Accelerometer 1.16.1 Accelerometer test fails Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 33(57)

  • Page 34: Gyroscope

    Trouble Shooting Guide Repair Instruction Mechanical/ Problem Areas 1.17 Gyroscope 1.17.1 Gyroscope test fails Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 34(57)

  • Page 35: Ambient Light Sensor

    1. If not properly connected – disconnect and reconnect. 2. If dirty or oxidized – clean both side of the BtB connector. Check: Inspect the Light Sensor on the FPC Jack Assy. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 35(57)
  • Page 36 Check: Inspect the FPC Jack Assy. Action: 1. If the FPC Jack Assy or its BtB connector is damaged – replace the FPC Jack Assy. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 36(57)

  • Page 37: Proximity Switch

    1. If not properly connected – disconnect and reconnect. 2. If dirty or oxidized – clean both side of the BtB connector. Check: Inspect the Proximity switch on the FPC Jack Assy. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 37(57)
  • Page 38 Check: Inspect the FPC Jack Assy. Action: 1. If the FPC Jack Assy or its BtB connector is damaged – replace the FPC Jack Assy. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 38(57)

  • Page 39: Pressure Sensor

    Trouble Shooting Guide Repair Instruction Mechanical/ Problem Areas 1.20 Pressure Sensor 1.20.1 Pressure Sensor test failed Action: N/A. No Pressure Sensor in the phone. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 39(57)

  • Page 40: Water Proof

    Trouble Shooting Guide Repair Instruction Mechanical/ Problem Areas 1.21 Water Proof 1.21.1 Water Proof test failed Action: N/A. No Water Proof in the phone. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 40(57)

  • Page 41: Real Time Clock

    Trouble Shooting Guide Repair Instruction Mechanical/ Problem Areas 1.22 Real time clock 1.22.1 Real time clock test failed Action: Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 41(57)

  • Page 42: Total Call Time

    Trouble Shooting Guide Repair Instruction Mechanical/ Problem Areas 1.23 Total call time 1.23.1 Total call time failed Action: Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 42(57)

  • Page 43: External Memory

    Trouble Shooting Guide Repair Instruction Mechanical/ Problem Areas 1.24 External Memory 1.24.1 External Memory test failed Action: N/A. No External Memory in the phone. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 43(57)

  • Page 44: Security

    Trouble Shooting Guide Repair Instruction Mechanical/ Problem Areas 1.25 Security 1.25.1 Security failed Action: Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 44(57)

  • Page 45: Fm Radio

    Inspect the BtB connector of the FPC Jack Assy to the main PBA. Action: 1. If not properly connected – disconnect and reconnect. 2. If dirty or oxidized – clean both sides of the BtB connector. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 45(57)
  • Page 46 Check: Inspect the FPC Jack Assy. Action: 1. If the FPC Jack Assy or its BtB connector is damaged – replace the FPC Jack Assy. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 46(57)

  • Page 47: Battery Health Test

    Problem Areas 1.27 Battery Health test 1.27.1 Battery Health test fails Check: Inspect the Battery. Action: If the Battery is damaged or in bad health status – replace it. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 47(57)

  • Page 48: Hdmi Test

    Trouble Shooting Guide Repair Instruction Mechanical/ Problem Areas 1.28 HDMI Test 1.28.1 HDMI test fails Check: Inspect the HDMI connector. Action: Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 48(57)

  • Page 49: Network & Signal

    2. If the pads on Main Antenna are damaged – replace the Main Antenna. 3. If the pins and pads on the Cover Transparent Assy are damaged – replace the Cover Transparent Assy. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 49(57)
  • Page 50 2. If damaged – replace the Main FPC. Check: Inspect the connector RF Cable to the Main PBA. Action: 1. If not properly connected to the Main PBA – disconnect and reconnect it. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 50(57)
  • Page 51 Trouble Shooting Guide Repair Instruction Mechanical/ Problem Areas: Network & Signal 2. If damaged – replace the RF Cable. 3. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 51(57)

  • Page 52: Sim

    Check whether the phone is locked to a particular operator and whether the correct operator SIM is being used. Action: 1. Use a proper operator SIM or test SIM. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 52(57)

  • Page 53: Charging

    2. If adhesive is detected on the contact pins – use an eraser to gently rub off the adhesive. Check: Inspect the USB connector. Action: 1. If dirty or oxidized – clean the connector. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 53(57)

  • Page 54: Handsfree By Wire

    Inspect the BtB connector of the FPC Jack Assy to the main PBA. Action: 1. If not properly connected – disconnect and reconnect. 2. If dirty or oxidized – clean both sides of the BtB connector. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 54(57)
  • Page 55 Check: Inspect the FPC Jack Assy. Action: 1. If the FPC Jack Assy or its BtB connector is damaged – replace the FPC Jack Assy. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 55(57)

  • Page 56: Data Communication

    1.33 Data Communication 1.33.1 Data transfer via System Connector fails Check: Inspect the USB connector. Action: 1. If dirty or oxidized – clean the connector. 2. Replace board. 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 56(57)

  • Page 57: Revision History

    Revision History Rev. Date Changes / Comments 2012-Mar-2 Initial release 2012-Mar-6 Template update 2012-Mar-29 Update the chapter1.1 2012-Apr-10 Update some description 2012-Aug-28 LT26ii Added 2012-Sep-19 Add new part 1254-4618 1257-2931 Rev 6  Sony Mobile Communications AB – Company Internal 57(57)

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