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Sony LT39h, Troubleshooting Manual

Introducing the Sony LT39h Troubleshooting Manual - a comprehensive, user-friendly guide designed to assist you in resolving any technical issues you may encounter with your device. This must-have manual is available for free download from manualshive.com, offering invaluable solutions to enhance your Sony LT39h experience.

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Troubleshooting Guide (mech)   

1277-9814  Rev 

2 

 Sony Ericsson Mobile Communications AB – Company Internal                                                        

53(63) 

 

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. 
2. Replace Main PBA. 

 

Summary of Contents for LT39h

Page 1: ...1277 9814 Rev 2 Sony Mobile Communications AB Company Internal Troubleshooting Guide mechanical Xperia Z1TM C6902 C6903 C6906 LT39h ...

Page 2: ... 6 1 Loudspeaker 17 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 24 1 9 1 Vibrator not generating alerts 24 1 10 Camera 25 1 10 1 Main Camera 25 1 10 2 Video Call Camera defects 26 1 11 Flash LED 27 1 11 1 Flash LED not flashing 27 1 12 Bluetooth and WLAN 28 1 12 1 Bluetooth or WLAN connection failure 28 1 13 NFC 30 1...

Page 3: ...oor FM Radio reception 48 1 27 Battery Health test 49 1 27 1 Battery Health test fails 49 1 28 Flip Slider Counter 50 1 28 1 Flip Slider Counter fails 50 1 29 Verify Certificates 51 1 29 1 Verify Certificates fails 51 1 30 IrDA Test 52 1 30 1 IrDA test fails 52 1 31 TV Out Test 53 1 31 1 TV Out test fails 53 1 32 Network Signal 54 1 32 1 No Poor signal 54 1 33 SIM 57 1 33 1 SIM not detected 57 1 3...

Page 4: ...n Mobile Communications AB Company Internal 4 63 Always firstly disconnect the Battery BtB connector to cut off power supply when the Rear Cover Assy is disassembled Always finally connect the Battery BtB connector before the Rear Cover Assy is reassembled ...

Page 5: ...ction 1 4 Display 2 If NO activation of the Vibrator is detected check that the battery is charging when connected to a charger Follow 1277 9815 Test Instruction mechanical chapter 2 3 7 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 Battery to Main PBA Action 1 If not...

Page 6: ...ng Guide mech 1277 9814 Rev 2 Sony Ericsson Mobile Communications AB Company Internal 6 63 Problem Areas Power 3 If the BtB connector the Battery FPC or the Battery is damaged replace the Battery 4 Replace Main PBA ...

Page 7: ...tion 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 Check Inspect the BtB connector of FPC Assembly Relay to Main PBA Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean it 3 If the FPC of FPC Assembly Relay is damaged replace the FPC Assembly Relay 4 Replace Main PBA ...

Page 8: ...ck Inspect the rubber of the Volume Key a and Volume Key switch b Action 1 If dirty clean them 2 If the rubber of the Volume Key is damaged replace the Gasket Side Key 3 If the volume key switch is damaged replace the FPC Assembly Relay 1 2 3 On Off Key Check Inspect the external area of the Power Key Action If dirty clean it ...

Page 9: ...ssembly Relay to Main PBA Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean it 3 If the FPC of FPC Assembly Relay is damaged replace the FPC Assembly Relay 4 Replace Main PBA Check Inspect the rubber of the Power Key a and Power Key switch b Action 1 If dirty clean them 2 If the Power key is damaged replace the Power Key ...

Page 10: ...is damaged replace the Gasket Side Key 4 If the power key switch is damaged replace the FPC Assembly Relay 1 2 4 Camera Key Check Inspect the external area of the Camera Key Action If dirty clean it Check Inspect the BtB connector of FPC Assembly Relay to Main PBA Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean it ...

Page 11: ...Keys 3 If the FPC of FPC Assembly Relay is damaged replace the FPC Assembly Relay 4 Replace Main PBA Check Inspect the rubber of the Camera Key a and Camera Key switch b Action 1 If dirty clean them 2 If the Camera Key is damaged replace the Camera Key 3 If the camera key switch is damaged replace the FPC Assembly Relay ...

Page 12: ...e touch screen of the Front Cover Action 1 If dirty clean it 2 If scratched or damaged replace the Front Cover Check Inspect the BtB connector of FPC Assembly Relay 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 of FPC Assembly Relay or FPC is damaged replace the FPC Assembly Relay 4 Replace Main PBA ...

Page 13: ...any Internal 13 63 Problem Areas Touch Screen Check Inspect the BtB connector of FPC Assembly Relay to Front Cover and the BtB connector of Front Cover Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean it 3 Replace Front Cover 4 Replace Main PBA ...

Page 14: ...d refer to section 1 1 Power Check Inspect the BtB connector of FPC Assembly Relay 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 of FPC Assembly Relay or FPC is damaged replace the FPC Assembly Relay Check Inspect the BtB connector of FPC Assembly Relay to Front Cover and the BtB and ZIF connector of Front Cover Ac...

Page 15: ...Internal 15 63 Problem Areas Display 3 If the BtB connector of FPC Assembly Relay or FPC is damaged replace the FPC Assembly Relay Check Replace the Main PBA with a known working one and test the Display Action 1 If the display is still not working Replace the Front Cover 2 Replace Main PBA ...

Page 16: ...ination Check Inspect external port of LED on the Front Cover Action 1 If dirty clean it Check Inspect the BtB connector of FPC Assembly Mic 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 of FPC Assembly Mic or FPC is damaged replace the FPC Assembly Mic 4 Replace Main PBA ...

Page 17: ...the Speaker Panel on the Main frame Assy Action 1 If the Speaker Panel is clogged clean it 2 If the Speaker Panel is damaged replace the Speaker Panel Check Inspect the contact pads of Loudspeaker and the contact pads on the FPC Assembly Relay Action 1 If dirty clean them 2 If the contact pads of Loudspeaker or the Loudspeaker are damaged replace the Loudspeaker ...

Page 18: ... pads of FPC Assembly Relay are damaged replace the FPC Assembly Relay Check Inspect the BtB connector of FPC Assembly Relay 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 of FPC Assembly Relay or FPC is damaged replace the FPC Assembly Relay 4 Replace Main PBA ...

Page 19: ... 1 Ear Speaker Check Inspect the external port of Ear Speaker on the Front Cover Action 1 If clogged clean it Check Inspect the contact pads of Ear Speaker and the contact pads on the Main PBA Action 1 If dirty clean them 2 If the contact pads of the Ear Speaker or the Ear Speaker are damaged replace the Ear Speaker 3 Replace Main PBA ...

Page 20: ...s 1 8 Microphone 1 8 1 Primary Microphone Check Inspect the Speaker Panel on the Front Cover Action 1 If clogged clean it 2 If the Speaker Panel is damaged replace the Speaker Panel Check Inspect the Cushion 1st Mic on Front Cover Action 1 If dirty clean them 2 If the Cushion 1st Mic is damaged replace Cushion 1st Mic ...

Page 21: ...ged replace the FPC Assembly Relay Check Inspect the BtB connector of FPC Assembly Relay 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 of FPC Assembly Relay or FPC is damaged replace the FPC Assembly Relay 4 Replace Main PBA 1 8 2 Secondary Microphone Check Inspect the external port of secondary microphone on the R...

Page 22: ...e Sheet WP 2nd Mic and the Cushion 2nd Mic on the Rear Cover Assy Action 1 If dirty clean them 2 If the Sheet WP 2nd Mic is damaged replace it 3 If the Cushion 2nd Mic is damaged replace it Check Inspect the BtB connector of FPC Assembly Mic to Main PBA Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean it ...

Page 23: ...de mech 1277 9814 Rev 2 Sony Ericsson Mobile Communications AB Company Internal 23 63 Problem Areas Microphone 3 3 If the BtB connector of FPC Assembly Mic or FPC is damaged replace the FPC Assembly Mic 4 Replace Main PBA ...

Page 24: ...mpany Internal 24 63 Problem Areas 1 9 Vibrator 1 9 1 Vibrator not generating alerts Check Inspect the BtB connector of Vibrator to Main PBA Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean it 3 If the vibrator is damaged replace the Vibrator ...

Page 25: ...k Inspect the external area of camera window Action 1 If dirty clean it 2 If scratched or damaged replace the Window Back Check Inspect the BtB connector of 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 Camera is damaged replace the Camera 4 Replace Main PBA ...

Page 26: ... of the video camera window Action 1 If dirty clean it 2 If scratched or damaged replace the Front Cover Check Inspect the ZIF connector of Chat Camera to the Main PBA Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean the both sides of the ZIF connector 3 If the ZIF connector or the Chat Camera is damaged replace the Chat Camera 4 Replace Main PBA ...

Page 27: ...ternal 27 63 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 dirty clean it 2 If scratched or damaged replace the Window back Check Inspect the flash LED on the Main PBA Action 1 If dirty clean it 2 Replace Main PBA ...

Page 28: ...enna contact pads on Rear Cover Assy and the contact pins on PBA WLAN Sub Action 1 If dirty or oxidized clean the pads and pins 2 If the antenna is damaged replace the BT WLAN Flex Antenna 3 If the contact pins on PBA WLAN Sub is damaged replace the PBA WLAN Sub Check Inspect the RF connector of RF Cable A to the PBA WLAN Sub Action 1 If not properly connected disconnect and reconnect it 2 If dirt...

Page 29: ...Bluetooth and WLAN 3 If the connector is damaged replace the PBA WLAN Sub Check Inspect the RF connector of RF Cable A to the Main PBA Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean it 3 If the connectors of RF Cable A are damaged replace the RF Cable A 4 Replace the Main PBA ...

Page 30: ...rnal 30 63 Problem Areas 1 13 NFC 1 13 1 NFC malfunctions Check Inspect the NFC antenna contact pads on Window Back and the contact pins on Main PBA Action 1 If dirty or oxidized clean the pads and pins 2 If the NFC antenna contact pads are damaged replace the Window Back 3 Replace the Main PBA ...

Page 31: ...14 GPS 1 14 1 GPS malfunctions Check Inspect the antenna on Main Frame Assy and the contact pins on Main PBA Action 1 If dirty or oxidized clean the pads and pins Check Replace the Main PBA with a known working one and test the GPS Action 1 If the GPS is still not working Replace the Main Frame Assy 2 Replace the Main PBA ...

Page 32: ...e BtB connector of FPC Assembly Relay 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 FPC is damaged replace FPC Assembly Relay to Main PBA Check Inspect the compass chip on the FPC Assembly relay Action 1 If the compass chip is damaged replace the FPC Assembly relay 2 Replace Main PBA ...

Page 33: ...Troubleshooting Guide mech 1277 9814 Rev 2 Sony Ericsson Mobile Communications AB Company Internal 33 63 Problem Areas 1 16 Accelerometer 1 16 1 Accelerometer test fails Action Replace Main PBA ...

Page 34: ...Troubleshooting Guide mech 1277 9814 Rev 2 Sony Ericsson Mobile Communications AB Company Internal 34 63 Problem Areas 1 17 Gyroscope 1 17 1 Gyroscope test fails Action Replace Main PBA ...

Page 35: ...ternal window area of light sensor on the Front Cover Action 1 If dirty clean it 2 If scratched or damaged replace the Front Cover Check Inspect the BtB connector of FPC Assembly 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 BtB connector or FPC of FPC Assembly Audio Jack is damaged replace the FPC Assembly Audio Jack...

Page 36: ...icsson Mobile Communications AB Company Internal 36 63 Problem Areas Ambient Light Sensor Check Inspect the sensor on the FPC Assembly Audio Jack Action 1 If dirty or clogged clean it 2 If damaged replace the FPC Assembly Audio Jack 3 Replace Main PBA ...

Page 37: ...ternal window area of light sensor on the Front Cover Action 1 If dirty clean it 2 If scratched or damaged replace the Front Cover Check Inspect the BtB connector of FPC Assembly 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 BtB connector or FPC of FPC Assembly Audio Jack is damaged replace the FPC Assembly Audio Jack...

Page 38: ...Ericsson Mobile Communications AB Company Internal 38 63 Problem Areas Proximity Switch Check Inspect the sensor on the FPC Assembly Audio Jack Action 1 If dirty or clogged clean it 2 If damaged replace the FPC Assembly Audio Jack 3 Replace Main PBA ...

Page 39: ...bleshooting Guide mech 1277 9814 Rev 2 Sony Ericsson Mobile Communications AB Company Internal 39 63 Problem Areas 1 20 Pressure Sensor 1 20 1 Pressure Sensor test fails N A No Pressure sensor in the phone ...

Page 40: ...ails Check Inspect the SIM Cap Action 1 If dirty clean it 2 If not properly assembled disassemble and reassemble 3 If the SIM Cap is damaged replace it Run the Water Resistance Test again Check Inspect the SD Cap Action 1 If dirty clean it 2 If not properly assembled disassemble and reassemble 3 If the SD Cap is damaged replace it Run the Water Resistance Test again ...

Page 41: ...tion 1 If dirty clean it 2 If not properly assembled disassemble and reassemble 3 If the USB Cap is damaged replace it Run the Water Resistance Test again Check Inspect the FPC Assembly Audio Jack Action If not properly assembled disassemble and reassemble with new adhesive 3 If the FPC Assembly Audio Jack is damaged replace it Run the Water Resistance Test again ...

Page 42: ...aker Action If damaged replace the Ear Speaker Run the Water Resistance Test again Check Inspect the secondary microphone Action If damaged replace the Sheet WP 2nd Mic Run the Water Resistance Test again Check Inspect the edge of Front Cover for damage and gap Action 1 If the edge of Front Cover has gap reassembly it 2 If the Front Cover is damaged replace it ...

Page 43: ...em Areas Water Resistance Check Inspect the edge of Window Back for damage and gap Action 1 If the edge of Window Back has gap reassembly it 2 If damaged replace it Check Inspect the edge of Rear Cover Assy for damage and gap Action 1 If the edge of Rear Cover Assy has gap reassembly it 2 If damaged replace it ...

Page 44: ...Troubleshooting Guide mech 1277 9814 Rev 2 Sony Ericsson Mobile Communications AB Company Internal 44 63 Problem Areas 1 22 Real Time Clock 1 22 1 Real time clock test fails Action Replace Main PBA ...

Page 45: ...Troubleshooting Guide mech 1277 9814 Rev 2 Sony Ericsson Mobile Communications AB Company Internal 45 63 Problem Areas 1 23 Total call time 1 23 1 Total call time fails Action Replace Main PBA ...

Page 46: ...roblem Areas 1 24 External 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 Problem Areas ...

Page 47: ...Troubleshooting Guide mech 1277 9814 Rev 2 Sony Ericsson Mobile Communications AB Company Internal 47 63 1 25 Security 1 25 1 Security fails Action Replace Main PBA ...

Page 48: ...k Inspect the external port of the Audio Jack Action 1 If dirty or oxidized clean it Check Inspect the BtB connector of FPC Assembly 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 BtB connector or FPC of FPC Assembly Audio Jack is damaged replace the FPC Assembly Audio Jack 4 Replace Main PBA ...

Page 49: ...Troubleshooting Guide mech 1277 9814 Rev 2 Sony Ericsson Mobile Communications AB Company Internal 49 63 Problem Areas 1 27 Battery Health test 1 27 1 Battery Health test fails N A ...

Page 50: ...Troubleshooting Guide mech 1277 9814 Rev 2 Sony Ericsson Mobile Communications AB Company Internal 50 63 Problem Areas 1 28 Flip Slider Counter 1 28 1 Flip Slider Counter fails N A Not slider phone ...

Page 51: ...Troubleshooting Guide mech 1277 9814 Rev 2 Sony Ericsson Mobile Communications AB Company Internal 51 63 Problem Areas 1 29 Verify Certificates 1 29 1 Verify Certificates fails Action N A ...

Page 52: ...Troubleshooting Guide mech 1277 9814 Rev 2 Sony Ericsson Mobile Communications AB Company Internal 52 63 Problem Areas 1 30 IrDA Test 1 30 1 IrDA test fails N A No IrDA functionality in the phone ...

Page 53: ...7 9814 Rev 2 Sony Ericsson Mobile Communications AB Company Internal 53 63 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 2 Replace Main PBA ...

Page 54: ...he PBA Cellular Sub Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean it Action If the RF connector of the PBA Cellular Sub is damaged replace the PBA Cellular Sub Check Inspect the antenna on Main Frame Assy and the contact pins on PBA Cellular Sub Action 1 If dirty or oxidized clean the antenna and pins 2 If the contact pins are damaged replace the PBA C...

Page 55: ... 1 If the network is still not working replace the Main Frame Assy Check Inspect the RF connector of RF Cable B to the Main PBA Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean it Action 1 If the RF Cable B is damaged replace the RF Cable B Check Inspect the antenna on Main Frame Assy and the contact pins on Main PBA Action 1 If dirty or oxidized clean th...

Page 56: ...icsson Mobile Communications AB Company Internal 56 63 Problem Areas Network Signal Check Replace the Main PBA with a known working one and test the network Action 1 If the network is still not working replace the Main Frame Assy 2 Replace the Main PBA ...

Page 57: ... If dirty or clogged clean the external port 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 ...

Page 58: ...ector 2 Replace Main PBA Check Inspect the BtB Connector of the 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 3 If the BtB connector the Battery FPC or Battery is damaged replace the Battery 4 Replace Main PBA 1 34 2 Battery will not charge by charge pad Check Inspect the external port of the Magn...

Page 59: ...onnect and reconnect it 2 If dirty or oxidized clean the both sides of the BtB connector 3 If the BtB connector or FPC of the FPC Assembly Charger is damaged replace the FPC Assembly Charger Check Inspect the contact pins on FPC Assembly Charger and pads on Magnetic Charger Connector Action 1 If dirty or oxidized clean the pins and pads 2 If the contact pads of Magnetic charger connector are damag...

Page 60: ...e FPC Assembly Charger are damaged clean the FPC Assembly Charger Check Inspect the BtB Connector of the 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 3 If the BtB connector the Battery FPC or the Battery is damaged replace the Battery 4 Replace Main PBA ...

Page 61: ...fails Check Inspect the external port of the Audio Jack Action 1 If dirty or oxidized clean it Check Inspect the BtB connector of FPC Assembly 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 BtB connector of FPC Assembly Audio Jack or FPC is damaged replace the FPC Assembly Audio Jack 4 Replace Main PBA ...

Page 62: ...ny Ericsson Mobile Communications AB Company Internal 62 63 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 ...

Page 63: ...ooting Guide mech 1277 9814 Rev 2 Sony Ericsson Mobile Communications AB Company Internal 63 63 2 Revision History Rev Date Changes Comments 1 2013 Sept 05 Initial release 2 2013 Sept 27 Updated WRT Chapter 1 21 ...

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