- mechanical
-
Troubleshooting Guide
1291-7742 Rev 3
Sony Mobile Communications AB – Company Internal
Xperia Z3
D6663,L55u,L55t
Company Internal
Troubleshooting Guide (mech)
CONTENTS
1 Problem Areas ................................................................................ 5
1.1 Power .................................................................................................... 5
1.1.1 Will not power on or will switch off randomly ........................................... 5
1.2 Keys ...................................................................................................... 7
1.2.1 Back, Menu, Home and Multitask Keys ..................................................... 7
1.2.2 Volume Key .................................................................................................. 7
1.2.3 On/Off Key .................................................................................................... 8
1.2.4 Camera Key ................................................................................................ 10
1.3 Touch Screen ..................................................................................... 12
1.3.1 Touch Screen malfunction ........................................................................ 12
1.4 Display ................................................................................................ 14
1.4.1 Graphics & Illumination ............................................................................ 14
1.5 LED/Illumination ................................................................................. 15
1.5.1 LED/Illumination ........................................................................................ 15
1.6 Speaker ............................................................................................... 16
1.6.1 Loudspeaker .............................................................................................. 16
1.7 Earphone ............................................................................................ 19
1.7.1 Ear Speaker ................................................................................................ 19
1.8 Microphone ......................................................................................... 20
1.8.1 Primary Microphone .................................................................................. 20
1.8.2 Secondary Microphone ............................................................................. 21
1.9 Vibrator ............................................................................................... 22
1.9.1 Vibrator not generating alerts .................................................................. 22
1.10 Camera ................................................................................................ 23
1.10.1 Main Camera .............................................................................................. 23
1.10.2 Video Call Camera defects ........................................................................ 24
1.11 Flash LED ........................................................................................... 25
1.11.1 Flash LED not flashing .............................................................................. 25
1.12 Bluetooth and WLAN ......................................................................... 26
1.12.1 Bluetooth or WLAN connection failure .................................................... 26
1.13 NFC ..................................................................................................... 27
1.13.1 NFC malfunctions ...................................................................................... 27
1.14 RX Diversity & GPS ............................................................................ 28
1.14.1 RX Diversity fails or GPS fails .................................................................. 28
1.15 Compass ............................................................................................. 29
1.15.1 Compass fails ............................................................................................ 29
1.16 Accelerometer .................................................................................... 30
1.16.1 Accelerometer test fails ............................................................................ 30
1.17 Gyroscope .......................................................................................... 31
1.17.1 Gyroscope test fails .................................................................................. 31
1.18 Ambient Light Sensor ........................................................................ 32
1.18.1 Light Sensor malfunctions ....................................................................... 32
1291-7742 Rev 3
Sony Mobile Communications AB –
2(58)
Company Internal
Troubleshooting Guide (mech)
1.19 Proximity Switch ................................................................................ 33
1.19.1 Proximity switch malfunctions ................................................................. 33
1.20 Pressure Sensor ................................................................................. 34
1.20.1 Pressure Sensor test fails ......................................................................... 34
1.21 Water Resistance ............................................................................... 35
1.21.1 Water Resistance fails............................................................................... 35
1.22 Real Time Clock ................................................................................. 41
1.22.1 Real time clock test fails ........................................................................... 41
1.23 Total call time ..................................................................................... 42
1.23.1 Total call time fails .................................................................................... 42
1.24 External Memory ................................................................................ 43
1.24.1 Memory Card not detected ....................................................................... 43
1.25 Security ............................................................................................... 44
1.25.1 Security fails .............................................................................................. 44
1.26 FM Radio ............................................................................................. 45
1.26.1 No/Poor FM Radio reception .................................................................... 45
1.27 Battery Health test ............................................................................. 46
1.27.1 Battery Health test fails ............................................................................. 46
1.28 Flip Slider Counter ............................................................................. 47
1.28.1 Flip Slider Counter fails ............................................................................ 47
1.29 Verify Certificates ............................................................................... 48
1.29.1 Verify Certificates fails .............................................................................. 48
1.30 IrDA Test ............................................................................................. 49
1.30.1 IrDA test fails ............................................................................................. 49
1.31 TV-Out Test ......................................................................................... 50
1.31.1 TV-Out test fails ......................................................................................... 50
1.32 Network & Signal ................................................................................ 51
1.32.1 No/Poor signal ........................................................................................... 51
1.33 SIM ...................................................................................................... 53
1.33.1 SIM not detected ........................................................................................ 53
1.33.2 Incorrect UIM or SIM indicated ................................................................. 53
1.34 Charging ............................................................................................. 54
1.34.1 Battery will not charge by USB connector .............................................. 54
1.34.2 Battery will not charge by charge pad ..................................................... 54
replace the Magnetic connector. ........................................................................... 55
1.35 Audio Jack test ................................................................................... 56
1.35.1 Connection to headset fails ...................................................................... 56
1.36 Data Communication ......................................................................... 57
1.36.1 Data transfer via System Connector fails ................................................ 57
2 Revision History ........................................................................... 58
1291-7742 Rev 3
Sony Mobile Communications AB –
3(58)
Company Internal
Troubleshooting Guide (mech)
Always firstly disconnect the Embedded Battery BtB connector to cut off power supply when the
Rear Panel is disassembled.
Always finally connect the Embedded Battery BtB connector before the Rear Panel is
reassembled.
1291-7742 Rev 3
Sony Mobile Communications AB –
4(58)
Company Internal
1 Problem Areas
1.1 Power
1.1.1 Will not power on or will switch
off randomly
Check:
Check whether the phone vibrates by pressing the on/off
key.
Action:
1. If activation of the vibrator is detected, refer to section 1.4
‘Display’.
Troubleshooting Guide (mech)
2. If NO activation of the Vibrator is detected, check that the
battery is charging when connected to a charger.
Follow Test Instruction - mechanical chapter 2.3.4
(Charging via USB and Easy Charger), Diagnostic
Battery / Charging status.
Check:
Inspect the on/off key.
Action:
Refer to section 1.2.3 ‘On/Off Key’.
Check:
Inspect the BtB connector of the Embedded Battery to Main
PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean the both sides of the BtB
connector.
1291-7742 Rev 3
Sony Mobile Communications AB –
5(58)
Company Internal
Problem Areas: Power
3. If the BtB connector, the FPC or the Battery is damaged –
replace the Embedded Battery.
4. Replace Main PBA.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
6(58)
Company Internal
Problem Areas
1.2 Keys
1.2.1 Back, Menu, Home and
Multitask Keys
Action:
1. Refer to section 1.3 ‘Touch Screen’.
2. Replace Main PBA.
1.2.2 Volume Key
Check:
Inspect the external area of the Key Volume.
Action:
If dirty – clean it.
Troubleshooting Guide (mech)
Check:
Inspect the BtB connector of Relay FPC to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
3. If the Relay FPC is damaged – replace it.
4. Replace Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
7(58)
Company Internal
Problem Areas: Keys
Check:
Inspect the rubber of the Volume Key (a) and Volume Key
switch (b).
Action:
1. If dirty – clean them.
Troubleshooting Guide (mech)
2. If the rubber of the Volume Key is damaged – replace the
Front Assy.
3. If the volume key switch is damaged – replace the Relay
FPC.
1.2.3 On/Off Key
Check:
Inspect the external area of the On/Off Key.
Action:
If dirty – clean it.
1291-7742 Rev 3
Sony Mobile Communications AB –
8(58)
Company Internal
Problem Areas: Keys
Check:
Inspect the BtB connector of Relay FPC to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
Troubleshooting Guide (mech)
3. If the Relay FPC is damaged – replace it.
4. Replace Main PBA.
Check:
Inspect the rubber of the On/Off Key (a) and On/Off Key
switch (b).
Action:
1. If dirty – clean them.
2. If the rubber of the On/Off Key is damaged – replace the
Front Assy.
1291-7742 Rev 3
Sony Mobile Communications AB –
9(58)
Company Internal
Problem Areas: Keys
3. If the On/Off key switch is damaged – replace the Relay
FPC.
1.2.4 Camera Key
Check:
Inspect the external area of the Camera Key.
Action:
If dirty – clean it.
Troubleshooting Guide (mech)
Check:
Inspect the BtB connector of Relay FPC to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
3. If the Relay FPC is damaged – replace it.
4. Replace Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
10(58)
Company Internal
Problem Areas: Keys
Check:
Inspect the rubber of the Camera Key (a) and Camera Key
switch (b).
Action:
1. If dirty – clean them.
Troubleshooting Guide (mech)
2. If the rubber of the Camera Key is damaged – replace the
Front Assy.
3. If the On/Off key switch is damaged – replace the Relay
FPC.
1291-7742 Rev 3
Sony Mobile Communications AB –
11(58)
Company Internal
Problem Areas
1.3 Touch Screen
1.3.1 Touch Screen malfunction
Check:
Inspect the touch screen of the Front Assy.
Action:
1. If dirty – clean it.
Troubleshooting Guide (mech)
2. If scratched or damaged – replace the Front Assy.
Check:
Inspect the BtB connector of Relay FPC to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
3. If the Relay FPC is damaged – replace it.
1291-7742 Rev 3
Sony Mobile Communications AB –
12(58)
Company Internal
Problem Areas
Check:
Inspect the BtB connector of Relay FPC to Front Assy.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
3. If the Relay FPC is damaged – replace it.
Troubleshooting Guide (mech)
Check:
Inspect the BtB connector of FPC on Front Assy.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
3. If the FPC is damaged – replace Front Assy.
4. Replace Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
13(58)
Company Internal
Problem Areas
1.4 Display
1.4.1 Graphics & Illumination
Check:
Check whether the phone vibrates after the on/off key has
been pressed.
Action:
If the activation described above is not detected, refer to
section 1.1 ‘Power’.
Troubleshooting Guide (mech)
2. If scratched or damaged – replace the Front Assy.
Check:
Inspect the BtB connector of Relay FPC to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
3. If the Relay FPC is damaged – replace it.
1291-7742 Rev 3
Sony Mobile Communications AB –
14(58)
Company Internal
Problem Areas
1.5 LED/Illumination
1.5.1 LED/Illumination
Check:
Inspect external port of LED on the Front Assy.
Action:
1. If dirty – clean it.
Check:
Inspect the Lightguide 3 LED.
Action:
1. If not properly assembled – reassemble it.
2. If dirty – clean it.
Troubleshooting Guide (mech)
3. If damaged – replace Audio Jack.
Check:
Inspect the LED on Main PBA.
Action:
1. If dirty or oxidized – clean it.
2. Replace Main PBA
1291-7742 Rev 3
Sony Mobile Communications AB –
15(58)
Company Internal
Problem Areas
1.6 Speaker
1.6.1 Loudspeaker
Check:
Inspect the Loudspeaker’s external port on the Front Assy.
Action:
1. If clogged – clean it.
Troubleshooting Guide (mech)
2. If damaged – replace the Front Assy.
Check:
Inspect the Holder Speaker sub assembly which includes
Speaker.
Action:
1. If damaged – replace Holder Speaker sub assembly.
1291-7742 Rev 3
Sony Mobile Communications AB –
16(58)
Company Internal
Problem Areas: Speaker
Check:
Inspect the Holder Speaker sub assembly’s Pads and Pins
on Sub PBA-B.
Action:
1. If dirty or oxidized – clean it.
Troubleshooting Guide (mech)
2. If the Pins on Sub PBA-B are damaged, replace the
Sub PBA-B.
Check:
Inspect the BtB connector of Relay FPC to Sub PBA-B.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
3. If the Relay FPC is damaged – replace it.
1291-7742 Rev 3
Sony Mobile Communications AB –
17(58)
Company Internal
Problem Areas
4. Replace Main PBA.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
18(58)
Company Internal
1.7 Earphone
1.7.1 Ear Speaker
Check:
Inspect the external port of loudspeaker on the Front Assy.
Action:
1. If clogged – clean it.
Check:
Inspect the contact pads on the Main PBA and the contact
pins on the Loudspeaker.
Action:
1. If dirty – clean them.
Troubleshooting Guide (mech)
2. If the contact pins of the Loudspeaker or the Loudspeaker
are damaged – replace it.
3. Replace Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
19(58)
Company Internal
Problem Areas
1.8 Microphone
1.8.1 Primary Microphone
Check:
Inspect the Primary Microphone’s external port on the Front
Assy.
Action:
1. If clogged – clean it.
Check:
Inspect the BtB connector of Relay FPC to Front Assy.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
Troubleshooting Guide (mech)
3. If the Relay FPC is damaged – replace it.
Note: Primary Microphone is soldered on Relay FPC.
Check:
Inspect the BtB connector of Relay FPC to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
1291-7742 Rev 3
Sony Mobile Communications AB –
20(58)
Company Internal
Problem Areas: Microphone
3. If the Relay FPC is damaged – replace it.
4. Replace Main PBA.
1.8.2 Secondary Microphone
Check:
Inspect the external port of secondary microphone on the
Front Assy.
Action:
1. If clogged – clean it.
Troubleshooting Guide (mech)
Check:
Inspect the BtB connector of Audio Jack to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
3. If the Audio Jack is damaged – replace it.
4. Replace Main PBA.
Note: Secondary Microphone is soldered Audio Jack.
1291-7742 Rev 3
Sony Mobile Communications AB –
21(58)
Company Internal
Problem Areas
1.9 Vibrator
1.9.1 Vibrator not generating alerts
Check:
Inspect the Vibrator soldered on Relay FPC.
Action:
1. If dirty or oxidized – clean it.
Check:
Inspect the BtB connector on Relay FPC to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it
Troubleshooting Guide (mech)
2. If the Relay FPC is damaged – replace it.
4. Replace Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
22(58)
Company Internal
Problem Areas
1.10 Camera
1.10.1 Main Camera
Check:
Inspect the external area of camera window.
Action:
1. If dirty – clean it.
Troubleshooting Guide (mech)
2. If scratched or damaged – replace the Rear Panel.
Check:
Inspect the BtB connector of Main Camera to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
3. If the BtB connector or the Main Camera is damaged –
replace the Main Camera.
4. Replace Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
23(58)
Company Internal
Problem Areas: Camera
1.10.2 Video Call Camera defects
Check:
Inspect the external area of the video camera window.
Action:
1. If dirty – clean it.
Troubleshooting Guide (mech)
2. If scratched or damaged – replace the Front Assy.
Check:
Inspect the Zif connector of Sub Camera to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
3. If the Sub Camera is damaged – replace the Sub
Camera.
4. Replace Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
24(58)
Company Internal
Problem Areas
1.11 Flash LED
1.11.1 Flash LED not flashing
Check:
Inspect the external area of the flash LED Light.
Action:
1. If dirty – clean it.
Troubleshooting Guide (mech)
2. If scratched or damaged – replace the Rear Panel.
Check:
Inspect the
Light guide 3 LED
on Audio Jack.
Action:
1. If damaged, replace Audio Jack.
Check:
Inspect the Flash LED on Main PBA.
Action:
1. If dirty – clean it.
2. Replace Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
25(58)
Company Internal
Problem Areas
1.12 Bluetooth and WLAN
1.12.1 Bluetooth or WLAN connection
failure
Check:
Inspect the Antenna BT + WLAN contact pad and the
contact pins on main PBA.
Action:
1. If dirty or oxidized – clean the pads and pins.
Troubleshooting Guide (mech)
2. If the contact pad on Antenna BT + WLAN is damaged –
replace the Antenna BT + WLAN.
3. If the contact pin on Main PBA is damaged – replace Main
PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
26(58)
Company Internal
Problem Areas
1.13 NFC
1.13.1 NFC malfunctions
Check:
Inspect the NFC antenna contact pads on Rear Panel and
the contact pins on Main PBA.
Action:
1. If dirty or oxidized – clean the pads and pins.
Troubleshooting Guide (mech)
2. If the NFC antenna contact pads are damaged – replace
the Rear Panel.
3. If the contact pins on main PBA are damaged – replace
Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
27(58)
Company Internal
Problem Areas
1.14 RX Diversity & GPS
1.14.1 RX Diversity fails or GPS fails
Check:
Inspect the contact pads on Sub Antenna and the contact
pins on Main PBA.
Action:
1. If dirty or oxidized – clean the pads and pins.
Troubleshooting Guide (mech)
2. If the Sub Antenna contact pad is damaged – replace the
Sub Antenna.
3. If the contact pins on main PBA are damaged – replace
Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
28(58)
Company Internal
Problem Areas
1.15 Compass
1.15.1 Compass fails
Check:
Inspect the BtB connector of Relay FPC to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
Troubleshooting Guide (mech)
3. If the Relay FPC is damaged – replace it.
4. If the contact pins on main PBA are damaged – replace
Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
29(58)
Company Internal
Problem Areas
1.16 Accelerometer
1.16.1 Accelerometer test fails
Action:
1. Follow the 1289-2983 Sony Mobile Repair Application –
mechanical to run the Accelerometer Calibration.
2. Replace Main PBA.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
30(58)
Company Internal
Problem Areas
1.17 Gyroscope
1.17.1 Gyroscope test fails
Action:
1. Follow the 1289-2983 Sony Mobile Repair Application –
mechanical to run the Gyroscope Calibration.
2. Replace Main PBA.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
31(58)
Company Internal
Problem Areas
1.18 Ambient Light Sensor
1.18.1 Light Sensor malfunctions
Check:
Inspect the external window area of light sensor on the Front
Assy.
Action:
1. If dirty – clean it.
Troubleshooting Guide (mech)
2. If scratched or damaged – replace the Front Assy.
Check:
Inspect the BtB connector of Audio Jack to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
3. If the Audio Jack is damaged – replace it.
4. Replace Main PBA.
Note: The ambient light sensor is soldered Audio Jack.
1291-7742 Rev 3
Sony Mobile Communications AB –
32(58)
Company Internal
Problem Areas
1.19 Proximity Switch
1.19.1 Proximity switch malfunctions
Check:
Inspect the external window area of proximity switch.
Action:
1. If dirty – clean it.
Troubleshooting Guide (mech)
2. If scratched or damaged – replace the Front Assy.
Check:
Inspect the BtB connector of Audio Jack to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
3. If the Audio Jack is damaged – replace it.
4. Replace Main PBA.
Note: The proximity switch is soldered Audio Jack.
1291-7742 Rev 3
Sony Mobile Communications AB –
33(58)
Company Internal
Problem Areas
1.20 Pressure Sensor
1.20.1 Pressure Sensor test fails
Replace Main PBA.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
34(58)
Company Internal
Problem Areas
1.21 Water Resistance
1.21.1 Water Resistance fails
Check:
Inspect the Cap SIM.
Action:
1. If dirty – clean it.
2. If not properly assembled – disassemble and reassemble.
Troubleshooting Guide (mech)
3. If the Cap SIM is damaged – replace it.
Run the Water Resistance Test again!
Check:
Inspect the Cap USB.
Action:
1. If dirty – clean it.
2. If not properly assembled – disassemble and reassemble.
3. If the Cap USB is damaged – replace it.
Run the Water Resistance Test again!
1291-7742 Rev 3
Sony Mobile Communications AB –
35(58)
Company Internal
Problem Areas: Water Resistance
Check:
Inspect the Audio Jack hole.
Action:
If damaged – replace the Audio Jack.
Note: Audio Jack already has Adhesive WP Audio Jack.
Run the Water Resistance Test again!
Troubleshooting Guide (mech)
Check:
Inspect the Magnetic Connector.
Action:
If not properly assembled or damaged – replace it.
Run the Water Resistance Test again!
1291-7742 Rev 3
Sony Mobile Communications AB –
36(58)
Sony Mobile Communications AB
Problem Areas: Water Resistance
primary microphone port.
Inspect the Gore Sheet(1st mic) on Front Assy.
Gore Sheet(1st mic)
Inspect the Holder Mic sub assembly on
Holder Mic sub assembly.
again!
secondary microphone port.
Troubleshooting Guide (mech)
Company Internal
Check:
Inspect the
Action:
If dirty, clean the port.
Check:
Action:
If damaged – replace the
Check:
Action:
If damaged – replace the
Run the Water Resistance Test
Check:
Inspect the
Relay FPC.
1291-7742 Rev 3
–
37(58)
Company Internal
Problem Areas: Water Resistance
Action:
If damaged – replace the Front Assy.
Run the Water Resistance Test again!
Troubleshooting Guide (mech)
Check:
Inspect the Grill Receiver Black for Receiver.
Action:
If damaged – replace the Grill Receiver Black.
Run the Water Resistance Test again!
Check:
Inspect the Gasket speaker rubber under Holder Speaker
sub assembly for Speaker.
1291-7742 Rev 3
Sony Mobile Communications AB –
38(58)
Company Internal
Problem Areas: Water Resistance
Action:
If damaged – replace the Gasket speaker rubber.
Run the Water Resistance Test again!
Troubleshooting Guide (mech)
Check:
Inspect the edge of Front Assy for damage and gap.
Action:
1. If the edge of Front Assy has gap – replace it.
2. If the Front Assy is damaged – replace it.
Run the Water Resistance Test again!
1291-7742 Rev 3
Sony Mobile Communications AB –
39(58)
Company Internal
Problem Areas: Water Resistance
Check:
Inspect the edge of Rear Panel for damage and gap.
Action:
1. If the edge of Rear Panel has gap – reassembly Adhesive
Rear Panel.
2. If damaged – replace it.
Run the Water Resistance Test again!
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
40(58)
Company Internal
Problem Areas
1.22 Real Time Clock
1.22.1 Real time clock test fails
Action:
Replace Main PBA.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
41(58)
Company Internal
Problem Areas
1.23 Total call time
1.23.1 Total call time fails
Action:
Replace Main PBA.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
42(58)
Company Internal
Problem Areas
1.24 External Memory
1.24.1 Memory Card not detected
Check:
Inspect that if a memory card is properly inserted.
Action:
If not properly inserted – insert the memory card correctly.
Check:
Inspect the memory card holder on Main PBA.
Action:
1. If dirty or clogged – clean the holder.
2. Replace Main PBA.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
43(58)
Company Internal
Problem Areas
1.25 Security
1.25.1 Security fails
Action:
Replace Main PBA.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
44(58)
Company Internal
Problem Areas
1.26 FM Radio
1.26.1 No/Poor FM Radio reception
Check:
Inspect the external port of the Front Assy.
Action:
1. If dirty or oxidized – clean it.
Check:
Inspect the BtB connector of Audio Jack to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
Troubleshooting Guide (mech)
3. If the Audio Jack is damaged – replace it.
Note: Headset will used as FM Antenna through Audio Jack.
4. Replace Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
45(58)
Company Internal
Problem Areas
1.27 Battery Health test
1.27.1 Battery Health test fails
N/A.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
46(58)
Company Internal
Problem Areas
1.28 Flip Slider Counter
1.28.1 Flip Slider Counter fails
N/A. Not slider phone.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
47(58)
Company Internal
Problem Areas
1.29 Verify Certificates
1.29.1 Verify Certificates fails
Action:
N/A.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
48(58)
Company Internal
Problem Areas
1.30 IrDA Test
1.30.1 IrDA test fails
N/A. No IrDA functionality in the phone.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
49(58)
Company Internal
Problem Areas
1.31 TV-Out Test
1.31.1 TV-Out test fails
Check:
Inspect the USB connector.
Action:
1. If dirty or oxidized – clean the connector.
Troubleshooting Guide (mech)
2. Replace Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
50(58)
Company Internal
Problem Areas
1.32 Network & Signal
1.32.1 No/Poor signal
Check:
Inspect the contact pads on the Main Antenna and the
contact pins on Sub PBA-A .
Action:
1. If dirty or oxidized – clean the pads and pins.
Troubleshooting Guide (mech)
2. If the contact pads are damaged – replace the Main
Antenna.
3. If the contact pins on Sub PBA-A and Sub PBA-B are
damaged – replace the them.
Check:
Inspect the two RF connectors of RF Cable.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
1291-7742 Rev 3
Sony Mobile Communications AB –
51(58)
Company Internal
Problem Areas: Network & Signal
3. Replace Main PBA.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
52(58)
Company Internal
Problem Areas
1.33 SIM
1.33.1 SIM not detected
Check:
Inspect the external port of the SIM card holder and check if
a SIM card can be properly inserted.
Action:
If dirty or clogged – clean the external port.
Note! The product supports only Nano SIM!
Troubleshooting Guide (mech)
Check:
Inspect the SIM Tray.
Action:
1. If the SIM Tray is damaged – Replace it.
Check:
Inspect the SIM card holder on Main PBA.
Action:
1. If dirty or clogged – clean the holder.
2. Replace Main PBA.
1.33.2 Incorrect UIM or SIM indicated
Check:
Check whether the phone is locked to a particular operator
and whether the correct operator UIM or SIM is being used.
Action:
1. Use a proper operator UIM/SIM or test UIM/SIM.
2. Replace Main PBA.
Note! The product supports only Nano SIM!
1291-7742 Rev 3
Sony Mobile Communications AB –
53(58)
Company Internal
Problem Areas
1.34 Charging
1.34.1 Battery will not charge by USB
connector
Check:
Inspect the USB connector.
Action:
1. If dirty or oxidized – clean the connector.
2. Replace Main PBA.
Check:
Inspect the BtB connector of the Embedded Battery to Main
PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean the both sides of the BtB
connector.
Troubleshooting Guide (mech)
3. If the BtB connector, the FPC or Battery is damaged –
replace the Embedded Battery.
1.34.2 Battery will not charge by
charge pad
Check:
Inspect the external port of the Magnetic Connector.
Action:
If dirty or oxidized – clean it.
1291-7742 Rev 3
Sony Mobile Communications AB –
54(58)
Company Internal
Problem Areas: Charging
Check:
Inspect the BtB connector of the Charge FPC to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean the both sides of the BtB
connector.
3. If the BtB connector or the FPC is damaged – replace the
Charge FPC.
Troubleshooting Guide (mech)
Check:
Inspect the contact pins on Charge FPC and pads on
Magnetic Connector.
Action:
1. If dirty or oxidized – clean the pins and pads.
2. If the contact pads of Magnetic connector are damaged –
replace the Magnetic connector.
3. Replace Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
55(58)
Company Internal
Problem Areas
1.35 Audio Jack test
1.35.1 Connection to headset fails
Check:
Inspect the external port of the Audio Jack.
Action:
1. If dirty or oxidized – clean it.
Check:
Inspect the BtB connector of Audio Jack to Main PBA.
Action:
1. If not properly connected – disconnect and reconnect it.
2. If dirty or oxidized – clean it.
Troubleshooting Guide (mech)
3. If the BtB connector or Audio Jack is damaged – replace
the Audio Jack.
4. Replace Main PBA.
1291-7742 Rev 3
Sony Mobile Communications AB –
56(58)
Company Internal
Problem Areas
1.36 Data Communication
1.36.1 Data transfer via System
Connector fails
Check:
Inspect the USB connector.
Action:
1. If dirty or oxidized – clean the connector.
2. Replace Main PBA.
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
57(58)
Company Internal
Rev.
Date
Changes / Comments
2 Revision History
1 2014-09-12 Initial release
2 2014-09-12 Remove Hall Element chapter(N/A)
3 2014-09-17 Update GPS chapter
Troubleshooting Guide (mech)
1291-7742 Rev 3
Sony Mobile Communications AB –
58(58)
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