Sony Ericsson S312 Troubleshooting Manual
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Sony Ericsson S312 Troubleshooting Manual

Sony Ericsson S312 Troubleshooting Manual

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Troubleshooting Guide

- electrical -
S312
1222-7451 Rev 2
©
Sony Ericsson Mobile Communications AB – Company Internal

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Summary of Contents for Sony Ericsson S312

  • Page 1: Troubleshooting Guide

    Troubleshooting Guide - electrical - S312 1222-7451 Rev 2 © Sony Ericsson Mobile Communications AB – Company Internal...

  • Page 2: Table Of Contents

    1.5 Audio ..................... 7 1.6 On/Off ....................8 1.7 Charging & Capacity ................9 1.8 Data Communication ................10 1.9 Network & Signal ................11 Revision History ................12 1222-7451 Rev 2 © Sony Ericsson Mobile Communications AB – Company Internal 2(2)

  • Page 3: Troubleshooting Flow

    Troubleshooting Guide (elect) Troubleshooting Flow Display Symptom: Display problem Replace: J301, if damaged 1222-7451 Rev 2 © Sony Ericsson Mobile Communications AB – Company Internal 3(3)

  • Page 4: Illumination

    Symptom: No Navigation keys illumination Replace: J601, if damaged D605, if short circuit No TORCH LIGHT Symptom: LED301, if damaged Replace: D304 or D303, if short circuit 1222-7451 Rev 2 © Sony Ericsson Mobile Communications AB – Company Internal 4(4)

  • Page 5: Keys & Sensors

    Troubleshooting Guide (elect) Troubleshooting Flow Keys Symptom: Keyboard problems Replace: J601, if damaged D607, D608, D610, D611, D612, D613, D614, D615, D618, if short circuit 1222-7451 Rev 2 © Sony Ericsson Mobile Communications AB – Company Internal 5(5)

  • Page 6: Alert & Rtc

    Troubleshooting Guide (elect) Troubleshooting Flow Alert & RTC Symptom: Vibrator problems Replace: D508, if short circuit Symptom: The clock gain or lose time Replace: X102 1222-7451 Rev 2 © Sony Ericsson Mobile Communications AB – Company Internal 6(6)

  • Page 7: Audio

    D503, D504, if short circuit U501, if damaged Can not detect Hands-free (PHF) Symptom: Replace: D709, if short circuit No FM Radio Symptom: U803, if damaged Replace: D702, if short circuit 1222-7451 Rev 2 © Sony Ericsson Mobile Communications AB – Company Internal 7(7)

  • Page 8: On/Off

    Using no current when On/Off key is pressed and will not start. Replace: J401, if damaged J601 D601, if short circuit U904, if damaged Symptom: Current draw greater than 300 mA Replace: D403, if short circuit 1222-7451 Rev 2 © Sony Ericsson Mobile Communications AB – Company Internal 8(8)

  • Page 9: Charging & Capacity

    J401, if damaged D701, if short circuit D403 or D701, if short circuit D401 or D405, U402, if damaged Symptom: Capacity problem Replace: D404, if short circuit 1222-7451 Rev 2 © Sony Ericsson Mobile Communications AB – Company Internal 9(9)

  • Page 10: Data Communication

    Troubleshooting Guide (elect) Troubleshooting Flow Data Communication Symptom: No communication via the System Connector Replace: D706, D707 or D701, if short circuit U703, if damaged 1222-7451 Rev 2 © Sony Ericsson Mobile Communications AB – Company Internal 10(10)

  • Page 11: Network & Signal

    Troubleshooting Guide (elect) Troubleshooting Flow Network & Signal Symptom: No network or Poor Signal Replace: J905 or J906, if damaged J904 U904 1222-7451 Rev 2 © Sony Ericsson Mobile Communications AB – Company Internal 11(11)

  • Page 12: Revision History

    Troubleshooting Guide (elect) Revision History Rev. Date Changes / Comments 2009-Jun-14 Initial release 2009-Jul-25 Due to system failure. No changes. 1222-7451 Rev 2 © Sony Ericsson Mobile Communications AB – Company Internal 12(12)

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