Sony Ericsson G502 Troubleshooting Manual
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Sony Ericsson G502 Troubleshooting Manual

Sony Ericsson G502 Troubleshooting Manual

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Trouble Shooting Guide, Mechanical
Applicable for G502
Contents
1
General .................................................................................................................2
1.1
Service functions in the software ...........................................................2
1.2
Misuse and other no warranty issues ....................................................3
2
Appearance Problems.......................................................................................7
3
Network/Signal Problems .................................................................................8
4
On/Off Problems ..............................................................................................11
5
Audio Problems ...............................................................................................14
6
Key Problems...................................................................................................18
7
Display Problems ............................................................................................20
8
Illumination Problems .....................................................................................21
9
Alert Problems .................................................................................................23
10
SIM Problems...................................................................................................24
11
FM Radio Problems .........................................................................................25
12
M2 Memory Problems .....................................................................................26
13
Charging/Capacity Problems .........................................................................27
14
Camera Problems ............................................................................................29
15
Data Communication Problems .....................................................................34
16
Software Problems ..........................................................................................35
17
Revision History ..............................................................................................36
1213-7899 1
©
Company Internal
Sony Ericsson Mobile Communications AB
Trouble Shooting Guide Repair Instruction, Mechanical
1

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Summary of Contents for Sony Ericsson G502

  • Page 1: Table Of Contents

    Illumination Problems ..................21 Alert Problems ....................23 SIM Problems....................24 FM Radio Problems ..................25 M2 Memory Problems ..................26 Charging/Capacity Problems .................27 Camera Problems ....................29 Data Communication Problems ..............34 Software Problems ..................35 Revision History ....................36 1213-7899 1 © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 2: General

    Main display LED/illumination Keyboard Speaker Earphone Microphone Vibrator Camera Memory Stick Real time clock Total call time NOTE: Different names may occur depending on language setting and customization. 1213-7899 1 2(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 3: Misuse And Other No Warranty Issues

    Below are some examples of what is not covered by warranty. Front window broken LCD cracked due to Clear scratches Mark after drop Corrosion components due to misuse. drop. on the PCB. 1213-7899 1 3(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 4 SIM reader damaged by System connector damaged by the PCB. PCB. liquid. liquid Components around system System connector pad(s) connector damaged by liquid damaged by liquid 1.2.2 Liquid damage sticker 1213-7899 1 4(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 5 (See point 1.1.1) Note: There must be clear marks after liquid on the PCB before rejecting the phone for repair. Fig. 1.2.3 Fig. 1.2.4 1213-7899 1 5(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 6 Make a general visual inspection for misuse, corrosion or oxidation from liquid damage. No further action should be taken for a liquid damaged phone. Handle the unit according to local directives. 1213-7899 1 6(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 7: Appearance Problems

    – Replace damaged parts as necessary. NOTE: Misuse is not covered by warranty. Refer to chapter 1.2 • Visually inspect for improper gap Reassemble or replace damaged between seams parts as necessary. 1213-7899 1 7(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 8: Network/Signal Problems

    • If damaged – Send to an electrical repair location. • Visually inspect antenna contact pins. If dirty or oxidized – Clean the pins and replace the antenna assembly. 1213-7899 1 8(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 9 Repair Action Reference Image • Visually inspect antenna If dirty, oxidized or damaged – Replace • If the issue has not been resolved Handle the unit according to local directives. 1213-7899 1 9(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 10 Hands free in car). Visually inspect the antenna bar on the phone. • If the issue has not been resolved Handle the unit according to local directives. 1213-7899 1 10(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 11: On/Off Problems

    7 • Before proceeding Perform a flash upgrade. • Visually inspect contact pads on battery If dirty or oxidized – Clean pads. • If damaged – Replace the battery. 1213-7899 1 11(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 12 Note: Take care not to bend the connector pin’s. • If damaged – Send to an electrical repair location. • Visually inspect the power key If damaged – Replace Keypad. 1213-7899 1 12(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 13 Repair Action Reference Image • If the issue has not been resolved Replace keyboard FPC • If the issue has not been resolved Handle the unit according to local directives. 1213-7899 1 13(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 14: Audio Problems

    Before proceeding Perform a flash upgrade and a setting reset. No sound or poor • quality sound Visually inspect speaker’s external port If clogged – Clean or replace front. 1213-7899 1 14(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 15 • Loudspeaker: Before proceeding Perform a flash upgrade and a setting reset. No sound or poor quality sound • Visually inspect speaker’s external port If clogged – Clean it. 1213-7899 1 15(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 16 If dirty or damaged – Clean the dust cloth. Speaker Box • Visually inspect the loudspeaker pins. If dirty or oxidized – Clean pins. • If damaged send to electrical repair. 1213-7899 1 16(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 17 Reference Image • If the issue has not been resolved Replace Speaker Box Assembly • If the issue has not been resolved Handle the unit according to local directives. 1213-7899 1 17(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 18: Key Problems

    Foil Dome Assy as necessary. module. functioning or is intermittent. NOTE: Camera switch is located on the key foil Dome Assy. 1213-7899 1 18(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 19 Visually inspect for damage to the side If damaged - Replace keys as keys “Volume Key & Camera Key” necessary. • If the issue has not been resolved Handle the unit according to local directives. 1213-7899 1 19(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 20: Display Problems

    PCB • If the issue has not been resolved Replace the LCD. NOTE: Misuse is not covered by warranty. Refer to chapter 1.2 1213-7899 1 20(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 21: Illumination Problems

    If damaged – Replace it • If the issue has not been resolved Replace the key flex module. • If the issue has not been resolved Handle the unit according to local directives. 1213-7899 1 21(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 22 PCB. • If issue has not been resolved. Replace the LCD. • If the issue has not been resolved. Handle the unit according to local directives. 1213-7899 1 22(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 23: Alert Problems

    If dirty or oxidized – Clean them. PCB. • Visually inspect the vibrator. If dirty or oxidized – Replace it. • If damaged – Replace it. Loudspeaker Refer to “loudspeaker” section under “Audio Problems” 1213-7899 1 23(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 24: Sim Problems

    (Insert correct carrier’s SIM is being used. correct SIM) • If the issue has not been resolved. Handle the unit according to local directives. 1213-7899 1 24(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 25: Fm Radio Problems

    If faulty inform customer to purchase new Stereo Headset if part is not defined as spare replacement part. • If the issue has not been resolved Handle the unit according to local directives. 1213-7899 1 25(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 26: M2 Memory Problems

    Use test M2 card to verify fault • If dirty or oxidized – Clean. • Replace M2 Memory Card • If the issue has not been resolved Handle the unit according to local directives. 1213-7899 1 26(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 27: Charging/Capacity Problems

    NOTE: Some features noticeably standby time reduce the amount of standby time if seems short they are turned on. Some examples are the back light (when on all the 1213-7899 1 27(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 28 Bluetooth and infrared. • If the issue has not been resolved Replace battery. • If the issue has not been resolved Handle the unit according to local directives. 1213-7899 1 28(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 29: Camera Problems

    Will not enter camera menu • Visually inspect whether the camera is If improperly connected – Re-establish properly connected to its socket on the proper connection. PCB. 1213-7899 1 29(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 30 • If the issue has not been resolved Replace the 2.0 Mega Pixel camera. • If the issue has not been resolved Handle the unit according to local directives. 1213-7899 1 30(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 31 If dirty – Clean both parts. image and/or damage to the camera key and • If damaged - Replace the camera key the key flex module. and/or the key flex module as necessary. 1213-7899 1 31(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 32 PCB. • If the issue has not been resolved Replace the key flex module if it has not already been replaced. 1213-7899 1 32(36) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 33 Reference Image • If the issue has not been resolved Replace 2.0 Mega Pixel camera. • If the issue has not been resolved Handle the unit according to local directives. 1213-7899 1 33(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 34: Data Communication Problems

    If the issue has not been resolved Replace the system connector. NOTE: The system connector includes the bluetooth antenna. • If the issue has not been resolved Handle the unit according to local directives. 1213-7899 1 34(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 35: Software Problems

    Note: Do a SW upgrade before sending the unit to a higher level. Do not scrap a phone that hasn’t been upgraded. If the failure still occurs, handle the unit according to the local directives. 1213-7899 1 35(36) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 36: Revision History

    Trouble Shooting Guide Repair Instruction, Mechanical 17 Revision History Rev. Date Changes / Comments 2008-05-26 First release 1213-7899 1 36(36) © Company Internal Sony Ericsson Mobile Communications AB...

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