Sony Xperia ZL User manual

1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
Troubleshooting Guide
- mechanical -
C6502, C6503, C6506 & L35h
XperiaTMZL

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
2(42)
CONTENTS
1Problem Areas................................................................................4
1.1 Power......................................................................................................4
1.1.1 Will not power on or will switch off randomly...........................................4
1.2 Keys........................................................................................................6
1.2.1 Back, Home, Menu and Multitask Keys .....................................................6
1.2.2 Volume Key..................................................................................................6
1.3 Touch Screen.........................................................................................8
1.3.1 Touch Screen malfunction..........................................................................8
1.4 Display....................................................................................................9
1.4.1 Graphics & Illumination ..............................................................................9
1.5 LED/Illumination.................................................................................. 11
1.5.1 LED .............................................................................................................11
1.5.2 Illumination ................................................................................................11
1.6 Speaker ................................................................................................12
1.6.1 Loudspeaker ..............................................................................................12
1.7 Earphone..............................................................................................13
1.7.1 Ear speaker ................................................................................................13
1.8 Microphone..........................................................................................14
1.8.1 Microphone ................................................................................................14
1.8.2 Secondary Microphone.............................................................................15
1.9 Vibrator.................................................................................................16
1.10 Camera................................................................................................. 17
1.10.1 Camera defects..........................................................................................17
1.10.2 Secondary Camera....................................................................................18
1.11 Flash LED.............................................................................................19
1.11.1 Flash LED not flashing..............................................................................19
1.12 Bluetooth..............................................................................................20
1.12.1 Bluetooth connection failure....................................................................20
1.13 GPS.......................................................................................................21
1.13.1 GPS malfunctions......................................................................................21
1.14 WLAN....................................................................................................22
1.14.1 WLAN connection failure..........................................................................22
1.15 NFC....................................................................................................... 23
1.15.1 NFC malfunctions......................................................................................23
1.16 Compass.............................................................................................. 24
1.16.1 Compass fails ............................................................................................24
1.17 Accelerometer .....................................................................................25
1.17.1 Accelerometer test fails............................................................................25
1.18 Gyroscope............................................................................................26
1.18.1 Gyroscope test fails ..................................................................................26
1.19 Ambient Light Sensor......................................................................... 27
1.19.1 Light Sensor malfunctions .......................................................................27

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
3(42)
1.20 Proximity Switch .................................................................................28
1.20.1 Proximity switch malfunctions.................................................................28
1.21 Real Time Clock................................................................................... 29
1.21.1 Real Time Clock test fails .........................................................................29
1.22 Total call time ......................................................................................30
1.22.1 Total call time fails.....................................................................................30
1.23 Storage.................................................................................................31
1.23.1 Storage not detected.................................................................................31
1.24 Security................................................................................................32
1.24.1 Security fails..............................................................................................32
1.25 FM Radio.............................................................................................. 33
1.25.1 No/Poor FM Radio reception ....................................................................33
1.26 Remote Control IRDA..........................................................................34
1.26.1 Remote Control test fails..........................................................................34
1.27 TV-Out Test..........................................................................................35
1.27.1 TV-Out test fails.........................................................................................35
1.28 Audio Jack ...........................................................................................36
1.28.1 Sound or microphone problem with accessory connected to Audio
Jack.............................................................................................................36
1.29 SIM........................................................................................................ 37
1.29.1 SIM not detected........................................................................................37
1.29.2 Incorrect SIM indicated.............................................................................37
1.30 Charging...............................................................................................38
1.30.1 Battery will not charge..............................................................................38
1.31 Data Communication .......................................................................... 39
1.31.1 Data transfer via System Connector fails................................................39
1.32 Network & Signal.................................................................................40
1.32.1 No/Poor signal ...........................................................................................40
2Revision History...........................................................................42
•You shall always after verifying the problem, start
the trouble shooting with the Software service
“Refurbish” in Emma.
•Software release information about improvements
are found: www.sonymobile.com/

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
4(42)
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 Power
key.
Action:
1. If activation of the Vibrator is detected, refer to section 1.4
‘Display’.
2. If NO activation of the Vibrator is detected, check that the
battery is charging when connected to a charger.
Follow Test Instruction (Charging via USB), Diagnostic
Battery / Charging status.
Check:
Inspect the power key
Action:
1. If dirty – clean it.
2. If the power key is damaged – replace the Key Power.
Check:
Inspect the two BtB connectors on the PBA Complete.
Action:
1. Remove the Battery BtB connector check the Gasket
Battery FPC Support. Reconnect the Battery BtB connector
test charging and then test powering on the unit.
2. If not properly connected – disconnect and reconnect
connectors.
3. If dirty or oxidized – clean connectors.

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
5(42)
Problem Areas: Power
Check:
Inspect the Battery Grounding.
Action:
1. Remove and reconnect Battery Grounding, test charging
and then test powering on the unit.
2. If not properly connected – disconnect and reconnect
connectors.
3. If dirty or oxidized – clean connectors.
4. If the damaged – replace Battery Grounding.
5. If the key dome switch, BtB connector or the FPC Side
Key is damaged – replace FPC Side Key.
6. If BtB contact on Battery 2300 mAh or Battery 2300 mAh
is damaged – replace Battery 2300 mAh.
7. Replace PBA Complete.

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
6(42)
Problem Areas: Keys
1.2 Keys
1.2.1 Back, Home, Menu and
Multitask Keys
Action:
1. Refer to the section 1.3 ‘Touch Screen’.
1.2.2 Volume Key
Check:
Inspect the external area of the Keys.
Action:
If dirty – clean it.
Check:
Inspect the BtB connector and key switches on the FPC
Side Key and the BtB connector on the PBA Complete.
Inspect the Carrier Sidekey.
Action:
1. If not properly connected – disconnect and reconnect
connector and Carrier Sidekey.
2. If dirty or oxidized – clean it.
Check:
Inspect the volume keys on Front Assy.
Action:
1. If dirty – clean them.
2. If the keys are damaged – Key Volume.

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
7(42)
Problem Areas: Keys
3. If the key switches, the BtB connector or the FPC Side
Key is damaged – replace the FPC Side Key.
4. Replace PBA Complete.

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
8(42)
Problem Areas
1.3 Touch Screen
1.3.1 Touch Screen malfunction
Check:
Inspect the touch screen.
Action:
If dirty – clean it.
Check:
Inspect the BtB connector on the Front Assy and the BtB
connector on the PBA Complete.
Action:
1. If not properly connected – disconnect and reconnect
connector.
2. If dirty or oxidized – clean it.
3. If BtB connector on Front Assy is damaged – replace the
Front Assy.
4. Replace PBA Complete.

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
9(42)
Problem Areas
1.4 Display
1.4.1 Graphics & Illumination
Check:
Check whether the phone vibrates after the Power key has
been pressed.
Action:
1. If the phone does not vibrate, refer to section 1.1 ‘Power’.
2. If the phone vibrates, perform force shut down (Press
Power key + Volume Up for 10sec) and try starting the
phone again with Power key.
3. Do Software update “Refurbish” (Secure that the battery
is charged! Refer to Test Instruction (Charging via USB).
Check:
Inspect the BtB connectors on the Front Assy and the BtB
connectors on the PBA Complete.
Action:
1. Remove and reconnect Front Assy connector, test
charging and then test powering on the unit.
2. If not properly connected – disconnect and reconnect
connector.
3. If dirty or oxidized – clean connector.
3. If BtB connector on Front Assy is damaged – replace the
Front Assy

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
10(42)
Problem Areas: Display
4. Replace PBA Complete.

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
11(42)
Problem Areas:
1.5 LED/Illumination
1.5.1 LED
Check:
Inspect the external window area of the Notification LED on
the Front Assy.
Action:
1. If dirty – clean it.
2. If the external window area is damaged – replace the
Front Assy.
Check:
Inspect the BtB connector on the Front Assy and the BtB
connector on the PBA Complete.
Action:
1. If not properly connected- disconnect and reconnect
connector.
2. If connectors dirty or clogged – clean it.
3. If FPC is damaged – replace Front Assy.
4. Replace PBA Complete.
1.5.2 Illumination
Check:
Inspect the BtB connector on the Front Assy and the BtB
connector on the PBA Complete.
Action:
1. If not properly connected – disconnect and reconnect
connector.
2. If dirty or oxidized – clean connector.
3. If FPC is damaged – replace Front Assy.
4. Replace PBA Complete

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
12(42)
Problem Areas
1.6 Speaker
1.6.1 Loudspeaker
Check:
Inspect the loudspeaker’s external port on the Back Cover.
Action:
1. If the loudspeaker’s external port is clogged – clean it.
2. If the loudspeaker’s external port is damaged – replace
Back Cover.
Check:
Inspect the contact pads and Carrier Spbox and the contact
pads on the PBA Complete.
Action:
1. If dirty or oxidized – clean them.
2. If not properly connected- disconnect and reconnect
Carrier Spbox.
Check:
Inspect the loudspeaker’s Mesh and acoustic seal on the
Carrier Spbox.
Action:
1. If dirty – clean them.
2. If the Carrier Spbox is damaged – replace the Carrier
Spbox.
3. Replace PBA Complete.

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
13(42)
Problem Areas
1.7 Earphone
1.7.1 Ear speaker
Check:
Inspect the Ear speaker’s external port on the Front Assy.
Action:
1. If clogged – clean it.
2. If the port is damaged – replace the Front Assy.
3. If not prompted to insert headphones when you start FM
radio without headphones - clean Audio Jack.
Check:
Inspect the FPC AVP and connector of FPC AVP.
Action:
1. If dirty – clean them.
2. If the connector is damaged – replace the FPC AVP.
Check:
Inspect the contact pins of Earspeaker.
Action:
1. If dirty – clean them.
2. If the contact pins are damaged – replace the
Earspeaker.
3. Replace PBA Complete

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
14(42)
Problem Areas
1.8 Microphone
1.8.1 Microphone
Check:
Inspect the Microphone’s external port on the Front Assy.
Action:
1. If clogged – clean the port.
2. If the port is damaged – replace the Front Assy.
Check:
Inspect the contact pads and BtB connector on the FPC
Camera Key PBA and the BtB connector on the PBA
Complete.
Action:
1. If dirty or oxidized – clean them.
2. If not properly connected- disconnect and reconnect
connector.
Check:
Inspect the Microphone and BtB connector on the FPC
Camera Key PBA.
Action:
1. If dirty – clean them.
2. If Microphone or BtB connector is damaged – replace the
FPC Camera Key PBA.
3. Replace the PBA Complete.

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
15(42)
Problem Areas:
1.8.2 Secondary Microphone
Check:
Inspect the secondary microphone’s external port on the
Back Cover.
Action:
1. If clogged – clean the port.
2. If the port is damaged – replace the Back Cover.
Check:
Inspect the secondary microphone seal and mesh on the
Carrier Spbox.
Action:
1. If dirty – clean it.
2. If damaged replace Carrier Spbox.
Check:
Inspect the secondary microphone on the FPC AVP.
Action:
1. If dirty – clean it.
2. If not properly connected- disconnect and reconnect
connector.
3. Replace FPC AVP
4. Replace PBA Complete

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
16(42)
Problem Areas
1.9 Vibrator
Check:
Inspect the connector on the Vibrator and the BtB connector
on the PBA Complete.
Action:
1. If not properly connected – disconnect and reconnect
connector.
2. If dirty or oxidized – clean connector.
Check:
Inspect the Vibrator.
Action:
1. If dirty – clean the Vibrator.
2. If Vibrator or connector is damaged – replace the
Vibrator.
3. Replace PBA Complete.

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
17(42)
Problem Areas
1.10 Camera
1.10.1 Camera defects
Check:
Inspect the external area of camera window.
Action:
1. If dirty – clean it.
2. If the window is damaged – replace the Back Cover.
Check:
Inspect the BtB connector of Camera 13 MP and the BtB
connector on the PBA Complete.
Action:
1. If not properly connected – disconnect and reconnect.
2. If dirty or oxidized – clean both of the BtB connectors.
3. If the BtB connector damaged or camera window
scratched or damaged – replace the Camera 13 MP.
4. Replace PBA Complete.

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
18(42)
Problem Areas
1.10.2 Secondary Camera
Check:
Inspect the external area of the Secondary camera window.
Action:
1. If dirty – clean it.
2. If scratched or damaged – replace the Front Assy.
Check:
Inspect the BtB connector of Camera 2.2 MP and the BtB
connector on the PBA Complete.
Action:
1. If not properly connected – disconnect and reconnect.
2. If dirty or oxidized – clean both of the BtB connectors.
3. If the BtB connector damaged or camera window
scratched or damaged – replace the Camera 2.2 MP.
4. Replace PBA Complete.

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
19(42)
Problem Areas
1.11 Flash LED
1.11.1 Flash LED not flashing
Check:
Inspect the external area of the flash LED window.
Action:
1. If the flash LED window is dirty – clean it.
2. If the flash LED window scratched or damaged – replace
the Back Cover.
Check:
Inspect the flash LED on the PBA Complete.
Action:
1. If dirty – clean it.
2. Replace PBA Complete.

Trouble Shooting Guide (mech)
1271-7735 Rev 1

Sony Mobile Communications AB – Company Internal
20(42)
Problem Areas
1.12 Bluetooth.
1.12.1 Bluetooth connection failure
Check:
Inspect the Carrier Spbox containing WLAN, Bluetooth and
GPS antenna and the connection to the PBA Complete.
Action:
1. If dirty – clean it.
2. If the antenna is damaged – replace the Carrier Spbox.
Check:
Inspect the WLAN, Bluetooth and GPS antenna contact pins
on the PBA Complete.
Action:
1. If dirty or oxidized – clean the pin.
2. Replace PBA Complete.