Sony Ericsson ELM J10 User manual

1235-7834 Rev 2
Sony Ericsson Mobile Communications AB –Company Internal
Troubleshooting Guide
- mechanical -
ELM
J10, J10i2

Trouble Shooting Guide Repair Instruction Mechanical/
1235-7834 Rev 2
Sony Ericsson Mobile Communications AB –Company Internal
2(25)
CONTENTS
1Problem Areas................................................................................4
1.1 Power....................................................................................................4
1.1.1 Cannot power on or will switch off randomly ...........................................4
1.2 Display..................................................................................................5
1.2.1 Graphics & Illumination ..............................................................................5
1.3 Keys ......................................................................................................6
1.3.1 Keyboard keys.............................................................................................6
1.3.2 Side keys......................................................................................................6
1.4 Audio.....................................................................................................7
1.4.1 Microphone..................................................................................................7
1.4.2 Receiver........................................................................................................7
1.4.3 Loudspeaker................................................................................................8
1.5 Vibrator...............................................................................................10
1.5.1 Vibrator not generating alerts ..................................................................10
1.6 Camera................................................................................................11
1.6.1 Camera 5MPixel defects............................................................................11
1.6.2 VGA Camera defects (J10 only) ...............................................................11
1.7 Flash LED ...........................................................................................13
1.7.1 Flash LED not flashing..............................................................................13
1.8 Accelerometer....................................................................................14
1.8.1 Accelerometer test fails............................................................................14
1.9 Memory Card......................................................................................15
1.9.1 Memory Card not detected .......................................................................15
1.9.2 Memory Card is stuck in the holder.........................................................15
1.10 FM Radio.............................................................................................16
1.10.1 No/Poor FM Radio reception ....................................................................16
1.11 Real Time Clock .................................................................................17
1.11.1 Real Time Clock test fails .........................................................................17
1.12 SIM ......................................................................................................18
1.12.1 SIM not detected........................................................................................18
1.12.2 Incorrect SIM indicated.............................................................................18
1.13 Charging.............................................................................................19
1.13.1 Battery will not charge..............................................................................19
1.14 BT/W-LAN (J10i2 only).......................................................................20
1.14.1 BT/W-LAN connection failure...................................................................20
1.15 GPS (J10i2 only).................................................................................21
1.15.1 GPS malfunctions......................................................................................21
1.16 Network & Signal................................................................................22
1.16.1 No/Poor signal ...........................................................................................22
1.17 HandsFree by Wire.............................................................................23
1.17.1 Connection to Portable HandsFree fails..................................................23
1.18 Data Communication .........................................................................24

Trouble Shooting Guide Repair Instruction Mechanical/
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1.18.1 Data transfer via System Connector fails................................................24
2Revision History...........................................................................25

Trouble Shooting Guide Repair Instruction Mechanical/
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1 Problem Areas
1.1 Power
1.1.1 Cannot power on or will switch
off randomly
Check:
Check whether the phone vibrates and the Navigation
Keypad illuminates after the power key is pressed
Action:
If activation of the Vibrator and Navigation Keypad
illumination is detected, refer to section 1.2 ‘Display’
Check:
Inspect the contact pads on the Battery
Action:
1. If dirty or oxidized –clean the pads
2. If damaged –replace the Battery
Check:
Inspect the Battery Connector
Action:
1. If dirty or oxidized –clean the connector
2. If adhesive is detected on the contact pins,
use an eraser to gently rub off the adhesive
3. If damaged –send to higher level of repair
Check:
Inspect the Keyboard (a) and the Keypad Dome Sheet (b)
Action:
1. If the Keyboard is damaged –replace it
2. If the Keypad Dome Sheet is damaged –replace it
3. Send to higher level of repair

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Problem Areas
1.2 Display
1.2.1 Graphics & Illumination
Check:
Check whether the phone vibrates and the Navigation
Keypad illuminates after the power key has been pressed
Action:
If the activation described above is not detected, refer to
section 1.1 ‘Power’
Check:
Inspect the connector
Action:
1. If not properly connected –disconnect and reconnect it
2. If dirty or oxidized –clean the male and female sides of
the connector
Check:
Inspect the contact pin on the back of the Display 2.2 TFT
(a) and contact pad on the PBA (b)
Action:
1. If the contact pins are flattened –gently use the Flex Film
Assembly Tool to lift them up higher than the surface
2. If the contact pin / contact pad dirty or oxidized –clean
the contact pin / contact pad
3. If the Display 2.2 TFT is damaged –replace it
4. Send to higher level of repair

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Problem Areas
1.3 Keys
1.3.1 Keyboard keys
Check:
Inspect the Keyboard (a) and the Keypad Dome Sheet (b)
Action:
1. If the Keyboard is damaged –replace it
2. If the Dome Sheet is damaged –replace it
3. Send to higher level of repair
1.3.2 Side keys
Check:
Inspect the key causing the fault
Action:
1. If dirty or clogged –clean it
2. Reinstall the PBA and ensure both the Volume Key and
the Camera Key are properly located in relation to the keys
switches on the PBA
3. If the connector is not properly connected –disconnect
and reconnect it
4. If the Camera Key FPC is damaged –replace it.
5. If the Volume key (a) or the Camera Key (b) is damaged –
replace the Volume key or the Camera Key
6. Send to higher level of repair

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Problem Areas
1.4 Audio
1.4.1 Microphone
Check:
Inspect the Microphone (1)‘s external port on the front
Action:
1. If clogged –clean the port
2. If damaged –change the Front Cover Assy
3. Send to higher level of repair
Check:
Inspect the Microphone (2)‘s external port on the back
Action:
1. If clogged –clean the port
2. If damaged –change the Carrier Assy
3. Send to higher level of repair
1.4.2 Receiver
Check:
Inspect the Receiver‘s external port
Action:
If clogged –clean it or replace the Front Cover Assy
Check:
Inspect the Receiver
Action:
If not properly attached –reinstall the Carrier Frame
Receiver / Carrier Frame VT+Receiver

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Problem Areas: Audio
Check:
Inspect the Receiver FPC
Action:
1. If the connector is not properly connected –disconnect
and reconnect it
2. If the Receiver FPC is damaged –replace it
3. Send to higher level of repair
1.4.3 Loudspeaker
Check:
Inspect the Loudspeakers’ external port on the Antenna
Cover
Action:
1. If clogged –clean the speaker port
2. If damaged –replace the Antenna Cover
Check:
Inspect the Speaker Mesh
Action:
1. If dirty or clogged –clean it
2. If damaged –replace it
Check:
Inspect the Loudspeakers’ external port on the Carrier Assy
Action:
1. If clogged –clean the speaker port
2. If damaged –replace the Carrier Assy

Trouble Shooting Guide Repair Instruction Mechanical/
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Problem Areas: Audio
Check:
Inspect the contact pads on the Loudspeaker (a) and the
contact pins on the PBA (b)
Action:
If the contact pins / contact pads dirty or oxidized –clean the
contact pins / contact pads
Check:
Inspect the Loudspeaker
Action:
1. If damaged –replace it
2. Send to higher level of repair

Trouble Shooting Guide Repair Instruction Mechanical/
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Problem Areas
1.5 Vibrator
1.5.1 Vibrator not generating alerts
Check:
Inspect the contact pins on the vibrator (a) and the contact
pads on the PBA (b)
Action:
If the contact pins / contact pads dirty or oxidized –clean the
contact pins / contact pads
Check:
Inspect the Vibrator
Action:
1. If damaged –replace it
2. Send to higher level of repair

Trouble Shooting Guide Repair Instruction Mechanical/
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Problem Areas
1.6 Camera
1.6.1 Camera 5MPixel defects
Check:
Inspect the camera window
Action:
1. If dirty –clean the window
2. If scratched or damaged –replace the Carrier Assy
Check:
Inspect whether the Camera is properly attached
Action:
1. If not properly attached –reinstall it
2. If the Camera is damaged –replace it
3. Send to higher level of repair
1.6.2 VGA Camera defects (J10 only)
Check:
Inspect the VGA Camera window
Action:
1. If dirty –clean the window

Trouble Shooting Guide Repair Instruction Mechanical/
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Problem Areas
2. If scratched or damaged –replace the Front Cover
Check:
Inspect the VGA Camera
Action:
1. If the connector is not properly connected –disconnect
and reconnect it
2. If the VGA Camera is damaged –replace it
3. Send to higher level of repair

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Problem Areas
1.7 Flash LED
1.7.1 Flash LED not flashing
Action:
Send to higher level of repair

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Problem Areas
1.8 Accelerometer
1.8.1 Accelerometer test fails
Action:
Send to higher level of repair

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Problem Areas
1.9 Memory Card
1.9.1 Memory Card not detected
Check:
Inspect the Memory Card holder
Action:
1. If dirty or oxidized –clean the holder
2. Send to higher level of repair
1.9.2 Memory Card is stuck in the
holder
Action:
1. Gently pull the Memory Card out with fingers
2. Send to higher level of repair
.

Trouble Shooting Guide Repair Instruction Mechanical/
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Problem Areas
1.10 FM Radio
1.10.1 No/Poor FM Radio reception
Check:
Inspect the System Connector
Action:
1. If dirty or oxidized –clean the connector
2. Send to higher level of repair

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Problem Areas
1.11 Real Time Clock
1.11.1 Real Time Clock test fails
Action:
Send to higher level of repair

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Problem Areas
1.12 SIM
1.12.1 SIM not detected
Check:
Inspect the SIM holder
Action:
1. If dirty or oxidized –clean the holder
2. Send to higher level of repair
1.12.2 Incorrect SIM indicated
Check:
Check whether the phone is locked to a particular operator
and whether the correct operator SIM is being used
Action:
1. Use a proper operator SIM or test SIM
2. Send to higher level of repair

Trouble Shooting Guide Repair Instruction Mechanical/
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Problem Areas
1.13 Charging
1.13.1 Battery will not charge
Check:
Inspect the contact pads of the Battery
Action:
1. If dirty or oxidized –clean the pads
2. If damaged –replace the Battery
Check:
Inspect the Battery Connector
Action:
1. If dirty or oxidized –clean the connector
2. If adhesive is detected on the contact pins, use an eraser
to gently rub off the adhesive
Check:
Inspect the system connector
Action:
1. If dirty or oxidized –clean the connector
2. Send to higher level of repair

Trouble Shooting Guide Repair Instruction Mechanical/
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Problem Areas
1.14 BT/W-LAN (J10i2 only)
1.14.1 BT/W-LAN connection failure
Check:
Inspect the connection of two contact pins on the back of
the Display 2.2 TFT (a) and contact pads on the PBA (b)
Action:
1. If the contact pins are flattened –gently use the Flex Film
Assembly Tool to lift them up higher than the surface
2. If the contact pins / contact pads dirty or oxidized –clean
the contact pins / contact pads
3. Send to higher level of repair