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Trouble Shooting Guide, Mechanical
Trouble Shooting Guide, Mechanical
Applicable for W880i Contents 1 General ................................................................................................................................. 2 Service functions in the software ................................................................................... 3 Misuse and other no warranty issues ............................................................................ 4 2 Power Problems.................................................................................................................... 6 3 Network/Signal Problems...................................................................................................... 7 4 Audio Problems..................................................................................................................... 8 Receiver:........................................................................................................................ 8 Rear Speaker:.............................................................................................................. 10 Microphone: ................................................................................................................. 12 5 Key Problems...................................................................................................................... 13 Keypad:........................................................................................................................ 13 Volume key: ................................................................................................................. 14 Camera key ................................................................................................................. 15 Music Key .................................................................................................................... 15 6 Display Problems ................................................................................................................ 17 7 Illumination Problems.......................................................................................................... 18 Keypad Illumination: The entire keypad will not illuminate ......................................... 18 Keypad Illumination: A portion of the keypad does not illuminate ............................. 18 Display Illumination:..................................................................................................... 19 8 Alert Problems..................................................................................................................... 20 Vibrator: ....................................................................................................................... 20 Rear speaker: .............................................................................................................. 20 9 Charging/Capacity Problems .............................................................................................. 22 10 SIM Problems...................................................................................................................... 23 11 Data Transfer Problems using a Data Cable ...................................................................... 24 12 Hands-Free Problems ......................................................................................................... 24 13 Rear Camera Problems ...................................................................................................... 25 14 Video Call Camera Problems (W880 Only)......................................................................... 27 15 Bluetooth Problems............................................................................................................. 29 16 Revision History .................................................................................................................. 30
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Trouble Shooting Guide, Mechanical
1 General
This document outlines the mechanical repairs that should be made in an attempt to fix the common failures that are seen in the field. To gain a complete understanding of how to test and repair a unit, this document should be used in conjunction with the Test Instructions, Mechanical and the Working Instructions, Mechanical. NOTE! A unit should always be inspected for liquid damage and flashed with latest software before using the Mechanical Trouble Shooting Guide. Refer to the Mechanical Test Instructions for details regarding upgrading software. 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
NOTE!
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Trouble Shooting Guide, Mechanical
Service functions in the software
The service menu will be accessed with the following key combination. Use the joystick.
***
The service menu options are: Service info Service tests Text labels Under the "Service tests" option, the phone's software has a built in service functionality that allows you to test some of the phones functions. It looks like this: Main display LED/illumination Keyboard Speaker Earphone Microphone Vibrator Camera Video Call Camera Memory Stick Real time clock Total call time Security NOTE: Different names may occur depending on language setting and customization.
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Trouble Shooting Guide, Mechanical
Misuse and other no warranty issues
A phone that is damaged due to misuse is not covered by warranty. This section shows many of the signs of misuse that are seen in the field. Please refer to local directives on how a phone that appears to be damaged due to misuse should be handled. Below are some examples of damage due to misuse that are not covered by warranty.
Front window broken due to misuse.
LCD cracked due to drop.
Clear scratches
Mark after drop
Corrosion components on the PCB.
Corrosion components on the PCB.
Components damaged by liquid
System connector damaged by liquid
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Trouble Shooting Guide, Mechanical
1.1.1
Liquid Damage Inspection
Before any tests are performed, an inspection of the liquid intrusion indicator should be made. If the liquid intrusion indicator is red this is an indication of possible liquid exposure. If the liquid intrusion indicator suggests liquid exposure please consult your local SEMC representative for handling instructions.
Location of the liquid intrusion indicator The following pictures show the different between an indicator that has been in contact with liquid and one that has not.
Not Exposed to Liquid
Exposed to Liquid
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Trouble Shooting Guide, Mechanical
2 Power Problems
Problem Area
Unit will not Power On
Items to Inspect
Check whether the phone vibrates when you press the power key Inspect battery connector
Repair Action
If activation of the vibrator is detected, refer to the "Display Problems" section · · If dirty or oxidized Clean the connector's contact pins If adhesive is detected on the contact pins use an eraser to rub off the adhesive If damaged Send to a repair location allowed to perform electrical repairs on this product If the keypad is damaged, replace it Replace the dome foil assembly
Inspection Reference
·
Inspect the area between the power key portion of the keypad and the dome foil assembly
· ·
If the issue is still not resolved!
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
3 Network/Signal Problems
Problem Area
No Signal or Poor Signal
Items to Inspect
Before proceeding ! ·
Repair Action
Ensure the correct SIM (GSM) or USIM (UMTS) is installed. See Test Instruction for details. If dirty or oxidized Clean the antenna-to-board spring connectors If damaged - Send to a repair location allowed to perform electrical repairs on this product
Inspection Reference
Inspect antenna-to-board spring connectors
· ·
If the issue has not been resolved !
·
Replace the antenna
If the issue is still not resolved!
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
4 Audio Problems
Problem Area
Receiver: No sound or poor quality sound
Items to Inspect
Before proceeding ! Inspect the receiver's external ports · ·
Repair Action
Perform a setting reset If clogged Clean the ports and receiver's dust cloth
Inspection Reference
Inspect the receiver's dust cloth
· ·
If dirty Clean If damaged Replace the camera flex assembly
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Trouble Shooting Guide, Mechanical
Problem Area
Items to Inspect
Inspect the two connections where the camera flex assembly connects to the circuit board ·
Repair Action
If either connection is improperly connected - Reestablish proper connection If one or both of the connections is dirty or oxidized Clean both halves of the connection(s) If any portion on the camera assembly flex film is damaged replace the camera flex assembly If either of the camera flex assembly connections on the circuit board is damaged Send to a repair location allowed to perform electrical repairs on this product Replace the camera assembly, if it has not been replaced
Inspection Reference
·
·
·
If the issue has not been resolved !
·
If the issue is still not resolved !
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
Problem Area
Rear Speaker: No sound or poor quality sound
Items to Inspect
Before proceeding ! Inspect whether the rear speaker's external port is clogged · ·
Repair Action
Perform a setting reset If clogged Clean the port and rear speaker cloth
Inspection Reference
Inspect the rear speaker cloth
· ·
If dirty Clean If damaged Replace the camera flex assembly
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Trouble Shooting Guide, Mechanical
Problem Area
Items to Inspect
Inspect the two camera flex assembly connections to the circuit board ·
Repair Action
If either connection is improperly connected - Reestablish proper connection If one or both of the connections is dirty or oxidized Clean both halves of the connection(s) If any portion on the camera assembly flex film is damaged replace the camera flex assembly If either of the camera flex assembly connections on the circuit board is damaged Send to a repair location allowed to perform electrical repairs on this product Replace camera flex assembly if it has not already been replaced
Inspection Reference
·
·
·
If the issue has not been resolved !
·
If the issue is still not resolved!
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
Problem Area
Microphone:
Items to Inspect
Before proceeding ! Inspect the microphone's external port · ·
Repair Action
Perform a setting reset If clogged Remove the co-brand label and clean the microphone's port hole
Inspection Reference
Inspect the microphone
· ·
If dirty - Clean the microphone If damaged - Send to a repair location allowed to perform electrical repairs on this product
If the issue is still not resolved!
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
5 Key Problems
Problem Area
Keypad: A key on the keypad is not functioning or is intermittent
Items to Inspect
Inspect the area between the keypad and the dome foil assembly where the key is not functioning If the issue is not resolved! If the issue is still not resolved! ·
Repair Action
If the keypad is damaged, replace it
Inspection Reference
· ·
Replace the dome foil assembly Send to a repair location allowed to perform electrical repairs on this product If the connector is improperly connected - Reestablish proper connection If the connection is dirty Clean both halves of that connection If dome foil assembly's half of the connection is damaged replace the dome foil assembly If the half of the connection on the circuit board is damaged Send to a repair location allowed to perform electrical repairs on this product Replace the dome foil assembly
Entire keypad or a portion of the keypad is not functioning or is intermittent
Inspect the dome foil assembly to circuit board connection
·
· ·
·
If the issue is not resolved!
·
If the issue is still not resolved!
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
Problem Area
Volume key:
Items to Inspect
Inspect the volume key ·
Repair Action
If dirty or damaged, replace the volume key
Inspection Reference
Inspect the volume switch on the camera flex assembly
·
If damaged, replace the camera flex assembly
If the issue has not been resolved !
·
Replace camera flex assembly if it has not already been replaced
If the issue is still not resolved!
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
Problem Area
Camera key
Items to Inspect
Inspect the area between the camera key and the dome foil assembly · ·
Repair Action
If the camera key is damaged, replace it If the camera key portion of the dome foil assembly is damaged, replace the dome foil assembly
Inspection Reference
If the issue is not resolved! If the issue is still not resolved!
· ·
Replace the dome foil assembly, if it has not already been replaced Send to a repair location allowed to perform electrical repairs on this product If dirty or damaged, replace the Music key
Music Key
Inspect the Music key
·
Inspect the Music key's dome foil on the camera flex assembly
·
If damaged, replace the camera flex assembly
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Trouble Shooting Guide, Mechanical
Problem Area
Items to Inspect
If the issue has not been resolved ! ·
Repair Action
Replace camera flex assembly if it has not already been replaced
Inspection Reference
If the issue is still not resolved!
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
6 Display Problems
Problem Area
If display is not functioning
Items to Inspect
Check whether the phone vibrates when you press the power key Inspect the display flex film's connection to the circuit board ·
Repair Action
If activation of the vibrator is not detected, refer to the "Power Problems" section If improperly connected - establish proper connection If dirty or oxidized Clean both halves of the connection If the display's portion of the connection is damaged replace the display assembly If the portion of the connection on the circuit board is damaged Send to a repair location allowed to perform electrical repairs on this product Replace the display assembly if it has not been replaced
Inspection Reference
· · ·
·
If the issue has not been resolved !
·
If the issue is still not resolved !
·
Send to a repair location allowed to perform electrical repairs on this product
Display is not Illuminating properly
Refer to the "Illumination Problems" section of this document
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Trouble Shooting Guide, Mechanical
7 Illumination Problems
Problem Area
Keypad Illumination: The entire keypad will not illuminate
Items to Inspect
Before proceeding ! Inspect both halves of the dome foil assembly to circuit board connection · · ·
Repair Action
Perform a setting reset If dirty or oxidized Clean both halves of the connection If the portion of the connection on the dome foil assembly is damaged Replace the dome foil assembly If the portion of the connection on the circuit board is damaged Send to a repair location allowed to perform electrical repairs on this product Replace the dome foil assembly, if it has not been replaced
Inspection Reference
·
If the issue has not been resolved !
·
If the issue has not been resolved !
·
Send to a repair location allowed to perform electrical repairs on this product Replace the dome foil assembly
Keypad Illumination: A portion of the keypad does not illuminate
Perform the following action !
·
If the issue has not been resolved !
·
Send to a repair location allowed to perform electrical repairs on this product
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4/000 21-1/FEA 209 544/123 A Company Internal © Sony Ericsson Mobile Communications AB
Trouble Shooting Guide, Mechanical
Problem Area
Display Illumination:
Items to Inspect
Before proceeding ! Inspect the display flex film's connection to the circuit board · · · ·
Repair Action
Perform a setting reset If improperly connected - establish proper connection If dirty or oxidized Clean both halves of the connection If the display's portion of the connection is damaged replace the display assembly If the portion of the connection on the circuit board is damaged Send to a repair location allowed to perform electrical repairs on this product Replace the display assembly if it has not been replaced
Inspection Reference
·
If the issue has not been resolved !
·
If the issue is still not resolved !
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
8 Alert Problems
Problem Area
Vibrator:
Items to Inspect
Before proceeding ! If the issue is not resolved ! · ·
Repair Action
Perform a setting reset Send to a repair location allowed to perform electrical repairs on this product Perform a setting reset If clogged Clean the port and rear speaker cloth
Inspection Reference
Rear speaker: No sound or poor quality sound
Before proceeding ! Inspect whether the rear speaker's external port is clogged
· ·
Inspect the rear speaker cloth
· ·
If dirty Clean If damaged Replace the camera flex assembly
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Trouble Shooting Guide, Mechanical
Problem Area
Items to Inspect
Inspect the two camera flex assembly connections to the circuit board ·
Repair Action
If either connection is improperly connected - Reestablish proper connection If one or both of the connections is dirty or oxidized Clean both halves of the connection(s) If any portion on the camera assembly flex film is damaged replace the camera flex assembly If either of the camera flex assembly connections on the circuit board is damaged Send to a repair location allowed to perform electrical repairs on this product Replace camera flex assembly if it has not already been replaced
Inspection Reference
·
·
·
If the issue has not been resolved !
·
If the issue is still not resolved!
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
9 Charging/Capacity Problems
Problem Area
Phone is not charging properly
Items to Inspect
Inspect the battery connector · ·
Repair Action
If dirty or oxidized Clean the connector's contact pins If adhesive is detected on the contact pins use an eraser to rub off the adhesive If damaged Send to a repair location allowed to perform electrical repairs on this product If dirty or oxidized Clean the connector's contacts If damaged Send to a repair location allowed to perform electrical repairs on this product
Inspection Reference
·
Inspect the system connector
· ·
If the issue has not been resolved !
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
10 SIM Problems
Problem Area
SIM undetected
Items to Inspect
Inspect camera flex assembly to SIM flex connection ·
Repair Action
If the connector is improperly connected - Reestablish proper connection If the connection is dirty Clean both halves of that connection If SIM flex half of the connection is damaged replace the SIM Flex If Camera flex half of the connection is damaged replace the Camera Flex Assembly Replace the SIM Flex, if it has not been replaced
Inspection Reference
· · ·
If the issue has not been resolved !
·
If the issue is still not resolved !
·
Send to a repair location allowed to perform electrical repairs on this product Ensure the correct SIM (GSM) or USIM (UMTS) is installed. See Test Instruction for details. Use Correct Carrier SIM or test SIM
Unit indicates the incorrect SIM is inserted
Before proceeding !
·
Check whether the phone is locked to a particular carrier and whether the correct carrier's SIM is being used
·
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Trouble Shooting Guide, Mechanical
11 Data Transfer Problems using a Data Cable
Problem Area
Problem transferring data using a direct connection
Items to Inspect
Inspect the system connector ·
Repair Action
If dirty or oxidized Clean the connector's contacts
Inspection Reference
If the issue has not been resolved !
·
Send to a repair location allowed to perform electrical repairs on this product
12 Hands-Free Problems
Problem Area
Hands-free not working
Items to Inspect
Inspect the system connector ·
Repair Action
If dirty or oxidized Clean the connector's contacts
Inspection Reference
If the issue has not been resolved !
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
13 Rear Camera Problems
Problem Area
Lines or marks in picture
Items to Inspect
Visually inspect the rear camera window · ·
Repair Action
If dirty Clean the rear camera window If scratched or damaged Replace the rear camera window
Inspection Reference
If the issue has not been resolved !
·
Replace the camera flex assembly
If the issue is still not resolved !
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
Problem Area
Will not capture an image
Items to Inspect
To determine whether or not the problem is with the camera key, try capturing an image by pressing the navigation key ·
Repair Action
If pressing the navigation key does take a picture Perform the steps listed in the camera key portion of the "Key Problems" section If pressing the navigation key does not take a picture Perform the remaining inspect/repair procedures in this section. If either connection is improperly connected - Reestablish proper connection If one or both of the connections is dirty or oxidized Clean both halves of the connection(s) If any portion on the camera assembly flex film is damaged replace the camera flex assembly If either of the camera flex assembly connections on the circuit board is damaged Send to a repair location allowed to perform electrical repairs on this product Replace camera flex assembly if it has not already been replaced
Inspection Reference
·
Inspect the two camera flex assembly connections to the circuit board
·
·
·
·
If the issue has not been resolved !
·
If the issue is still not resolved!
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
14 Video Call Camera Problems (W880 Only)
Problem Area
Lines or marks in picture
Items to Inspect
Visually inspect the front camera's window · ·
Repair Action
If dirty Clean the front camera's window If scratched or damaged Replace the front cover
Inspection Reference
If the issue has not been resolved !
·
Replace camera flex assembly
If the issue is still not resolved!
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
Problem Area
Do not see image when in video call mode
Items to Inspect
Inspect the two camera flex assembly connections to the circuit board ·
Repair Action
If either connection is improperly connected - Reestablish proper connection If one or both of the connections is dirty or oxidized Clean both halves of the connection(s) If any portion on the camera assembly flex film is damaged replace the camera flex assembly If either of the camera flex assembly connections on the circuit board is damaged Send to a repair location allowed to perform electrical repairs on this product Replace camera flex assembly if it has not already been replaced
Inspection Reference
·
·
·
If the issue has not been resolved !
·
If the issue is still not resolved!
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
15 Bluetooth Problems
Problem Area
Will not connect with a functional Bluetooth device
Items to Inspect
Inspect Bluetooth antenna-to-board spring connectors ·
Repair Action
If dirty or oxidized Clean the Bluetooth antenna-to-board spring connectors If damaged - Send to a repair location allowed to perform electrical repairs on this product
Inspection Reference
·
If the issue has not been resolved !
·
Replace the antenna
If the issue is still not resolved!
·
Send to a repair location allowed to perform electrical repairs on this product
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Trouble Shooting Guide, Mechanical
16 Revision History
Rev.
A
Date
Feb. 8, 2007 Initial Release
Changes / Comments
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