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User Manual
Trouble Shooting Guide, Mechanical
Applicable for Z750
Contents
1
General ................................................................................................................................. 2
2
Bluetooth Problems............................................................................................................... 6
3
Camera Problems - Picture Camera ..................................................................................... 7
4
Camera Problems - Video Call Camera - (Z750i Only) ........................................................ 8
5
Charging/Capacity Problems ................................................................................................ 9
6
Data Transfer Problems using a Data Cable ........................................................................ 9
7
Display Problems ................................................................................................................ 10
8
Earphone (Receiver) Problems........................................................................................... 13
9
FM Radio Problems ............................................................................................................ 14
10
Hands-Free Problems ......................................................................................................... 14
11
Illumination Problems.......................................................................................................... 15
12
Key Problems...................................................................................................................... 17
13
Memory Card Problems ...................................................................................................... 19
14
Microphone Problems ......................................................................................................... 19
15
Network/Signal Problems.................................................................................................... 20
16
Power Problems.................................................................................................................. 21
17
Rear Speaker Problems...................................................................................................... 23
18
SIM Problems...................................................................................................................... 24
1001-5739 2
©
Sony Ericsson Mobile Communications AB
View of Z750.................................................................................................................. 2
Service functions in the software ................................................................................... 3
Misuse and other no warranty issues ............................................................................ 4
Liquid damage ............................................................................................................... 5
Neither display is functioning ....................................................................................... 10
Only the outer display is not functioning ...................................................................... 11
Only the inner display is not functioning ...................................................................... 12
Keyboard Illumination: ................................................................................................. 15
Inner Display Illumination:............................................................................................ 15
Keyboard: .................................................................................................................... 17
Volume Key/Play key:.................................................................................................. 18
Trouble Shooting Guide, Mechanical
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Table of Contents
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Summary of Contents for Sony Ericsson Z750
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Page 1: Table Of Contents
Trouble Shooting Guide, Mechanical Trouble Shooting Guide, Mechanical Applicable for Z750 Contents General ..........................2 View of Z750........................2 Service functions in the software ................... 3 Misuse and other no warranty issues ................4 Liquid damage ....................... 5 Bluetooth Problems....................... 6 Camera Problems - Picture Camera .................. -
Page 2: General
NOTE! If all of the repair actions listed in this document for addressing a problem have been performed and a unit still is not working, handle the unit according to your local Sony Ericsson Representative. View of Z750 1001-5739 2 2(25) ©... -
Page 3: Service Functions In The Software
Vibrating alert Camera Video call camera (only applies to Z750i) Memory card FM Radio Real time clock Total call time Security NOTE: Different names may occur depending on language setting and customization. 1001-5739 2 3(25) © Sony Ericsson Mobile Communications AB... -
Page 4: Misuse And Other No Warranty Issues
Front window broken due to LCD cracked due to drop. Clear scratches Mark after drop misuse. Corrosion components on the PCB. Corrosion components on the PCB. Components damaged by liquid System connector damaged by liquid 1001-5739 2 4(25) © Sony Ericsson Mobile Communications AB... -
Page 5: Liquid Damage
Location of the liquid intrusion indicator The following pictures show the difference between an indicator that has been in contact with liquid and one that has not. Not Exposed to Liquid Exposed to Liquid 1001-5739 2 5(25) © Sony Ericsson Mobile Communications AB... -
Page 6: Bluetooth Problems
If the issue is not resolved Replace the system connector, if it has not already been replaced • If the issue is still not resolved Escalate to an electrical repair level 1001-5739 2 6(25) © Sony Ericsson Mobile Communications AB... -
Page 7: Camera Problems - Picture Camera
If the issue is not resolved Replace the camera module, if it has not already been replaced • If the issue is still not resolved Escalate to an electrical repair level 1001-5739 2 7(25) © Sony Ericsson Mobile Communications AB... -
Page 8: Camera Problems - Video Call Camera - (Z750I Only)
• If the issue is not resolved Replace the video telephony camera and the upper PWB assembly • If the issue is still not resolved Escalate to an electrical repair level 1001-5739 2 8(25) © Sony Ericsson Mobile Communications AB... -
Page 9: Charging/Capacity Problems
Replace the system connector and transferring data clean the contact pads on the circuit using a direct board connection • If the issue is still not resolved Escalate to an electrical repair level 1001-5739 2 9(25) © Sony Ericsson Mobile Communications AB... -
Page 10: Display Problems
If either of the two connector portions on the hinge flex are damaged – replace the hinge flex • If either of the two connector portions on the PWB assembly are damaged – replace the PWB assembly 1001-5739 2 10(25) © Sony Ericsson Mobile Communications AB... -
Page 11: Only The Outer Display Is Not Functioning
If the issue is not resolved Replace the outer display, if it has not already been replaced • If the issue is still not resolved Escalate to an electrical repair level 1001-5739 2 11(25) © Sony Ericsson Mobile Communications AB... -
Page 12: Only The Inner Display Is Not Functioning
• If the issue is still not resolved Escalate to an electrical repair level Display is not Refer to the “Illumination Problems” section of this document Illuminating properly 1001-5739 2 12(25) © Sony Ericsson Mobile Communications AB... -
Page 13: Earphone (Receiver) Problems
• If the issue is not resolved Replace the receiver, if it has not already been replaced • If the issue is still not resolved Escalate to an electrical repair level 1001-5739 2 13(25) © Sony Ericsson Mobile Communications AB... -
Page 14: Fm Radio Problems
Perform the following action Replace the system connector and working clean the contact pads on the circuit board • If the issue has not been resolved Escalate to an electrical repair level 1001-5739 2 14(25) © Sony Ericsson Mobile Communications AB... -
Page 15: Illumination Problems
Perform a setting reset Illumination: • Perform the following action Replace the inner display Inner Display’s illumination is irregular • If the issue has not been resolved Escalate to an electrical repair level 1001-5739 2 15(25) © Sony Ericsson Mobile Communications AB... - Page 16 Replace upper PWB assembly Inner Display’s illumination is dim • Perform the following action Replace the inner display • If the issue has not been resolved Escalate to an electrical repair level 1001-5739 2 16(25) © Sony Ericsson Mobile Communications AB...
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Page 17: Key Problems
If the issue is still not resolved Replace the keyboard and keypad light shield if they have not been replaced • If the issue is still not resolved Escalate to an electrical repair level 1001-5739 2 17(25) © Sony Ericsson Mobile Communications AB... -
Page 18: Volume Key/Play Key
If the issue is not resolved Replace the SIM FPC assembly, if it has not already been replaced • If the issue is still not resolved Escalate to an electrical repair level 1001-5739 2 18(25) © Sony Ericsson Mobile Communications AB... -
Page 19: Memory Card Problems
Inspect the microphone’s port hole in Clean the port hole in the circuit board the circuit board • If the issue is still not resolved Escalate to an electrical repair level 1001-5739 2 19(25) © Sony Ericsson Mobile Communications AB... -
Page 20: Network/Signal Problems
Perform the following action Replace antenna assembly and Signal clean the antenna’s contact points on the circuit board • If the issue is still not resolved Escalate to an electrical repair level 1001-5739 2 20(25) © Sony Ericsson Mobile Communications AB... -
Page 21: Power Problems
• If debris is present between the keyboard and keypad light shield, clean and/or replace parts as necessary 1001-5739 2 21(25) © Sony Ericsson Mobile Communications AB... - Page 22 NOTE: Thoroughly clean the power key contacts on the circuit board before installing a new dome foil. • If the issue is still not resolved Escalate to an electrical repair level 1001-5739 2 22(25) © Sony Ericsson Mobile Communications AB...
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Page 23: Rear Speaker Problems
If the issue is not resolved Replace the rear speaker, if it has not already been replaced • If the issue is still not resolved Escalate to an electrical repair level 1001-5739 2 23(25) © Sony Ericsson Mobile Communications AB... -
Page 24: Sim Problems
Unit indicates the Check whether the phone is locked Use Correct Carrier SIM or test SIM incorrect SIM is to a particular carrier and whether inserted the correct carrier’s SIM is being used 1001-5739 2 24(25) © Sony Ericsson Mobile Communications AB... -
Page 25: Revision History
• If the issue is still not resolved Escalate to an electrical repair level 20 Revision History Rev. Date Changes / Comments 2007-Sept 19 Initial Release 2008-April, 24 Fixed variant reference 1001-5739 2 25(25) © Sony Ericsson Mobile Communications AB...
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