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Sony Ericsson K770 Troubleshooting Manual, Mechanical

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Trouble Shooting Guide, Mechanical
Applicable for K770
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 ............................................................................................21
8
Illumination Problems .....................................................................................22
9
Alert Problems .................................................................................................24
10
SIM Problems...................................................................................................26
11
Charging/Capacity Problems .........................................................................27
12
Camera Problems ............................................................................................29
13
Media Memory Problems ................................................................................30
14
Software Problems ..........................................................................................31
15
Revision History ..............................................................................................32
4/000 21-1/FEA 209 544/142 A
©
Company Internal
Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Mechanical
1(32)

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Summary of Contents for Sony Ericsson K770

  • Page 1: Table Of Contents

    Display Problems ....................21 Illumination Problems ..................22 Alert Problems ....................24 SIM Problems....................26 Charging/Capacity Problems .................27 Camera Problems ....................29 Media Memory Problems ................30 Software Problems ..................31 Revision History ....................32 1(32) 4/000 21-1/FEA 209 544/142 A © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 2: General

    Main display LED/illumination Keyboard Speaker Earphone Microphone Vibrator Camera Real time clock Total call time NOTE: Different names may occur depending on language setting and customization. 4/000 21-1/FEA 209 544/142 A 2(32) © 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. 4/000 21-1/FEA 209 544/142 A 3(32) © 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 4/000 21-1/FEA 209 544/142 A 4(32) © 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. 1.2.2 Fig. 1.2.3 4/000 21-1/FEA 209 544/142 A 5(32) © 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. 4/000 21-1/FEA 209 544/142 A 6(32) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 7: Appearance Problems

    – Replace damage parts as necessary. Visually inspect all keys • If dirty – Clean parts as necessary. • If unacceptably scratched or damaged – Replace damaged parts as necessary. 4/000 21-1/FEA 209 544/142 A 7(32) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 8 Trouble Shooting Guide, Mechanical Problem Area Items to Check Repair Action Reference Image Visually inspect for improper gap • Reassemble or replace damaged parts between seams as necessary. 4/000 21-1/FEA 209 544/142 A 8(32) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 9: Network/Signal Problems

    If damaged – Replace the M2 SIM assembly. Visually inspect antenna contact pads • If dirty or oxidized – Clean the pads and replace the Antenna box. 4/000 21-1/FEA 209 544/142 A 9(32) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 10 If antenna pin damaged - Send to an electrical repair location. • If the issue has not been resolved ! Handle the unit according to local directives. 4/000 21-1/FEA 209 544/142 A 10(32) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 11 Note: Be gently it might damage the connector. • If the issue has not been resolved ! Handle the unit according to local directives. 4/000 21-1/FEA 209 544/142 A 11(32) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 12: On/Off Problems

    If dirty or oxidized – Clean it. Note: Be gentle do not bend or damage the gold surface on connector pin’s • If damaged – Send to an electrical repair location. 4/000 21-1/FEA 209 544/142 A 12(32) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 13 Visually inspect the power key • If damaged – Replace it. • If the issue has not been resolved ! Handle the unit according to local directives. 4/000 21-1/FEA 209 544/142 A 13(32) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 14: Audio Problems

    If the issue has not been resolved ! • Handle the unit according to local directives. • Receiver: Before proceeding ! Perform a flash upgrade and a setting reset. No sound or poor 4/000 21-1/FEA 209 544/142 A 14(32) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 15 If dirty or damaged – Clean or replace • Visually inspect the pads If dirty or oxidized – Clean pads. • If the issue has not been resolved ! Replace receiver. 4/000 21-1/FEA 209 544/142 A 15(32) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 16 Visually inspect speaker’s external port • If clogged – Clean it. • Visually inspect the speaker’s dust If dirty or damaged – Clean or replace cloth Speaker gasket. 4/000 21-1/FEA 209 544/142 A 16(32) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 17 If the issue has not been resolved ! Replace loudspeaker. (Speaker & Antenna box) • If the issue has not been resolved ! Handle the unit according to local directives. 4/000 21-1/FEA 209 544/142 A 17(32) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 18: Key Problems

    If damaged - Replace keypad and/or damage to the keypad and the dome keyboard is not keypad support plate assembly as sheet. functioning or is necessary. intermittent 4/000 21-1/FEA 209 544/142 A 18(32) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 19 Replace the dome sheet, if it has not already been replaced. • If the issue has not been resolved ! Handle the unit according to local directives. 4/000 21-1/FEA 209 544/142 A 19(32) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 20 Visually inspect for damage to the side • If damaged - Replace keys as keys necessary. If the issue has not been resolved ! • Handle the unit according to local directives. 4/000 21-1/FEA 209 544/142 A 20(32) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 21: Display Problems

    If improperly connected – Re-establish film is properly connected to its proper connection. connector on the PCB • If the issue has not been resolved ! Replace the LCD. 4/000 21-1/FEA 209 544/142 A 21(32) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 22: Illumination Problems

    If the issue has not been resolved ! • Handle the unit according to local directives. • Before proceeding ! Perform a flash upgrade and a setting reset. 4/000 21-1/FEA 209 544/142 A 22(32) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 23 If issue has not been resolved ! Replace the LCD. • If the issue has not been resolved ! Handle the unit according to local directives. 4/000 21-1/FEA 209 544/142 A 23(32) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 24: Alert Problems

    • Perform a flash upgrade and a setting reset. No sound or poor quality sound Visually inspect speaker’s external port • If clogged – Clean it. 4/000 21-1/FEA 209 544/142 A 24(32) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 25 If dirty or oxidized – Clean or replace Speaker & Antenna box. • If the issue has not been resolved ! Replace loudspeaker. (Speaker & Antenna box). 4/000 21-1/FEA 209 544/142 A 25(32) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 26: 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. 4/000 21-1/FEA 209 544/142 A 26(32) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 27: Charging/Capacity Problems

    Refer to chapter 1.2 • Visually inspect the battery connector If dirty or oxidized – Clean. • If damaged – Send to an electrical repair location. 4/000 21-1/FEA 209 544/142 A 27(32) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 28 If the issue has not been resolved ! • Replace battery. • If the issue has not been resolved ! Handle the unit according to local directives. 4/000 21-1/FEA 209 544/142 A 28(32) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 29: Camera Problems

    If the issue has not been resolved ! • Replace camera. • If the issue has not been resolved ! Handle the unit according to local directives. 4/000 21-1/FEA 209 544/142 A 29(32) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 30: Media Memory Problems

    (Replace the memory stick micro stick). connector). If the issue has not been resolved! • Handle the unit according to local directives. 4/000 21-1/FEA 209 544/142 A 30(32) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 31: 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. 4/000 21-1/FEA 209 544/142 A 31(32) © Company Internal Sony Ericsson Mobile Communications AB...

  • Page 32: Revision History

    Trouble Shooting Guide, Mechanical 15 Revision History Rev. Date Changes / Comments 2007-09-24 Initial release 4/000 21-1/FEA 209 544/142 A 32(32) © Company Internal Sony Ericsson Mobile Communications AB...
  • Page 33 www.s-manuals.com...

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