Sony Ericsson C702 Trouble Shooting Manual Repair Instruction Mechanical
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Sony Ericsson C702 Trouble Shooting Manual Repair Instruction Mechanical

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Trouble Shooting Guide, Mechanical
Applicable for C702, C702a & C702c
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 .................................................................................9
4
On/Off Problems ..............................................................................................12
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 ..........................................................................................37
17
Revision History ..............................................................................................38
1213-5331 1
©
Company Internal
Sony Ericsson Mobile Communications AB
Trouble Shooting Guide Repair Instruction Mechanical/, Mechanical
1213-5331

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  • Page 1: Table Of Contents

    Trouble Shooting Guide Repair Instruction Mechanical/, Mechanical Trouble Shooting Guide, Mechanical Applicable for C702, C702a & C702c Contents General .......................2 Service functions in the software ............2 Misuse and other no warranty issues ............3 Appearance Problems..................7 Network/Signal Problems .................9 On/Off Problems ....................12 Audio Problems ....................14...

  • 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. 1213-5331 1 2(38) © 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. 1213-5331 1 3(38) © 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) Battery O-ring broken due to connector damaged by liquid damaged by liquid misuse 1213-5331 1 4(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 5 Fig. 1.2.1 On the pictures below you will see the different between a sticker that has been in contact with liquid (Fig. 1.2.3) and with one that hasn’t (Fig. 1.2.2). 1213-5331 1 5(38) © 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. 1213-5331 1 6(38) © 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 parts between seams as necessary. 1213-5331 1 7(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 8 If loose – Put parts back. • If unacceptably missing or damaged – Replace Back Cover Assy as necessary. NOTE: Misuse is not covered by warranty. Refer to chapter 1.2 1213-5331 1 8(38) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 9: Network/Signal Problems

    If damaged – Send to an electrical repair location. • Visually inspect antenna contact pins. If dirty or oxidized – Clean the pins. • If damaged – Send to an electrical repair location. 1213-5331 1 9(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 10 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. 1213-5331 1 10(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 11 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. 1213-5331 1 11(38) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 12: On/Off Problems

    Visually inspect battery connector If dirty or oxidized – Clean it. Note: Take care not to bend the connector pin’s. • If damaged – Send to an electrical repair location. 1213-5331 1 12(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 13 Repair Action Reference Image • Visually inspect the power key If damaged – Replace it. • If the issue has not been resolved Handle the unit according to local directives. 1213-5331 1 13(38) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 14: Audio Problems

    If water come in – Dry the phone • If clogged – Clean or replace front. • Visually inspect speaker’s dust cloth If dirty or damaged – Replace front. 1213-5331 1 14(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 15 If water come in – Dry the phone • If clogged – Clean it. Note: Take care when removing the screw cover that water does flow off screw cover into the phones back cover area. 1213-5331 1 15(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 16 Trouble Shooting Guide Repair Instruction Mechanical/, Mechanical Problem Area Items to Check Repair Action Reference Image • Visually inspect the loudspeaker’s BOX If dirty or damaged – Clean the dust cloth. Speaker Box 1213-5331 1 16(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 17 If dirty or oxidized – Clean them. • If the issue has not been resolved Replace Speaker Box • If the issue has not been resolved Handle the unit according to local directives. 1213-5331 1 17(38) © 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. 1213-5331 1 18(38) © 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. 1213-5331 1 19(38) © 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 1213-5331 1 20(38) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 21: Illumination Problems

    Replace the key flex module. • If the issue has not been resolved Handle the unit according to local directives. • Before proceeding Perform a flash upgrade and a setting reset. 1213-5331 1 21(38) © 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. 1213-5331 1 22(38) © 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” 1213-5331 1 23(38) © 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. 1213-5331 1 24(38) © 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. 1213-5331 1 25(38) © 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. 1213-5331 1 26(38) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 27: Charging/Capacity Problems

    Some examples are the back light (when on all the time and), Bluetooth and infrared. 1213-5331 1 27(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 28 Trouble Shooting Guide Repair Instruction Mechanical/, Mechanical • If the issue has not been resolved Replace battery. • If the issue has not been resolved Handle the unit according to local directives. 1213-5331 1 28(38) © 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. 1213-5331 1 29(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 30 • If the issue has not been resolved Replace the 3.2 Mega Pixel camera. • If the issue has not been resolved Handle the unit according to local directives. 1213-5331 1 30(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 31 • Visually inspect whether the key flex If improperly connected – Re-establish module is properly connected to its proper connection. connector on the PCB. 1213-5331 1 31(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 32 • If the issue has not been resolved Replace 3.2 Mega Pixel camera. • If the issue has not been resolved Handle the unit according to local directives. 1213-5331 1 32(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 33 If improperly connected – Re-establish properly connected to its socket on the proper connection. PCB. • If the issue has not been resolved Replace the Front QCIF VGA camera. 1213-5331 1 33(38) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 34: Data Communication Problems

    If dirty – Clean Frame Cover • If missing or damaged – Replace the Bluetooth antenna. • If the issue has not been resolved Send the unit to an electrical repair location. 1213-5331 1 34(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 35 • Will not connect Before proceeding Perform an update content refresh. through the System • Visually inspect the System Connector If dirty – Clean it. Connector pads for dirt. 1213-5331 1 35(38) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 36 If the issue has not been resolved If damaged –Send the unit to an electrical repair location. • If the issue has not been resolved Handle the unit according to local directives. 1213-5331 1 36(38) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 37: 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. 1213-5331 1 37(38) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 38: Revision History

    Trouble Shooting Guide Repair Instruction Mechanical/, Mechanical 17 Revision History Rev. Date Changes / Comments 2008-05-22 First release 1213-5331 1 38(38) © Company Internal Sony Ericsson Mobile Communications AB...

This manual is also suitable for:

C702aC702c

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