Sony LT39t Troubleshooting Manual Download Page 1

Page: 1 / 68

1279-7185 Rev 1



Sony Mobile Communications AB – Company Internal

Troubleshooting Guide

- mechanical -

Xperia

LT39t

Summary of Contents for LT39t

Page 1: ...1279 7185 Rev 1 Sony Mobile Communications AB Company Internal Troubleshooting Guide mechanical XperiaTM Z1 LT39t ...

Page 2: ... Loudspeaker 15 1 7 Earphone 17 1 7 1 Ear Speaker 17 1 8 Microphone 18 1 8 1 Primary Microphone 18 1 8 2 Secondary Microphone 19 1 9 Vibrator 22 1 9 1 Vibrator not generating alerts 22 1 10 Camera 24 1 10 1 Main Camera 24 1 10 2 Video Call Camera defects 25 1 11 Flash LED 26 1 11 1 Flash LED not flashing 26 1 12 Bluetooth and WLAN 28 1 12 1 Bluetooth or WLAN connection failure 28 1 13 NFC 29 1 13 ...

Page 3: ...FM Radio reception 49 1 27 Battery Health test 50 1 27 1 Battery Health test fails 50 1 28 Flip Slider Counter 51 1 28 1 Flip Slider Counter fails 51 1 29 Verify Certificates 52 1 29 1 Verify Certificates fails 52 1 30 IrDA Test 53 1 30 1 IrDA test fails 53 1 31 TV Out Test 54 1 31 1 TV Out test fails 54 1 32 Network Signal 55 1 32 1 No Poor signal 55 1 33 SIM 62 1 33 1 SIM not detected 62 1 33 2 ...

Page 4: ...Communications AB Company Internal 4 68 Always firstly disconnect the Battery FPC BtB connector to cut off power supply when the Sub Antenna Assy is disassembled Always finally connect the Battery FPC BtB connector before the Sub Antenna Assy is reassembled ...

Page 5: ... 1 4 Display 2 If NO activation of the Vibrator is detected check that the battery is charging when connected to a charger Follow 1279 7188 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 prop...

Page 6: ...hooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 6 68 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: ...ch 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 Assy Relay Side Key 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 Assy Relay Side Key is damaged replace the FPC Assy Relay Side Key 4 Replace Main PBA ...

Page 8: ...ct 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 Display Frame Assy 3 If the volume key switch is damaged replace the FPC Assy Relay Side Key 1 2 3 On Off Key Check Inspect the external area of the Power Key Action If dirty clean it ...

Page 9: ...ain PBA Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean it 3 If the FPC of FPC Assy Relay Side Key is damaged replace the FPC Assy Relay Side Key 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 rubber of the power key is damaged replace the Display Frame Assy ...

Page 10: ...lay Side Key 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 Assy Relay Side Key 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 Assy Relay Side Key is damaged replace the FPC Assy Relay Side Key 4 Replace Main PBA ...

Page 11: ... Internal 11 68 Problem Areas Keys Check Inspect the rubber of the Camera Key a and Camera Key switch b Action 1 If dirty clean them 2 If the rubber of the Camera Key is damaged replace the Display Frame Assy 2 If the camera key switch is damaged replace the FPC Assy Relay Side Key ...

Page 12: ...of the Display Frame Assy Action 1 If dirty clean it 2 If scratched or damaged replace the Display Frame Assy Check Inspect the BtB connector of Display Frame Assy FPC 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 Display Frame Assy FPC or FPC is damaged replace the Display Frame Assy 4 Replace Main PBA ...

Page 13: ...the on off key has been pressed Action If the activation described above is not detected refer to section 1 1 Power Check Inspect the BtB connector of Display Frame Assy FPC 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 Display Frame Assy FPC or FPC is damaged replace the Display Frame Assy 4 Replace Main PBA ...

Page 14: ...k Inspect external port of LED on the Display Frame Assy Action 1 If dirty clean it Check Inspect the BtB connector of FPC Assy 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 Assy Audio Jack or FPC is damaged replace the FPC Assy Audio Jack 4 Replace Main PBA ...

Page 15: ... on the Display 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 Assy Relay Side Key Action 1 If dirty clean them 2 If the contact pads of Loudspeaker or the Loudspeaker are damaged replace the Main Antenna Speaker Sub Assy ...

Page 16: ... Relay Side Key are damaged replace the FPC Assy Relay Side Key Check Inspect the BtB connector of FPC Assy Relay Side Key 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 Assy Relay Side Key or FPC is damaged replace the FPC Assy Relay Side Key 4 Replace Main PBA ...

Page 17: ...eaker on the Display Frame Assy Action 1 If clogged clean it Check Inspect the contact pads of Ear Speaker and the Ear Speaker Conductive Films 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 If Conductive Film Ear Speaker is damaged replace Conductive Film Ear Speaker 4 Replace Main PBA ...

Page 18: ...Speaker Panel on the Display Frame Assy Action 1 If clogged clean it 2 If the Speaker Panel is damaged replace the Speaker Panel Check Inspect the microphone on the FPC Assy Relay Side Key Action 1 If clogged clean it 2 If the microphone is damaged replace the FPC Assy Relay Side Key Check Inspect the 1st Mic Cushion on Display Frame Assy Action 1 If dirty clean them ...

Page 19: ... connector of FPC Assy Relay Side Key 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 Assy Relay Side Key or FPC is damaged replace the FPC Assy Relay Side Key 4 Replace Main PBA 1 8 2 Secondary Microphone Check Inspect the external port of secondary microphone on the Window Back Sub Assy Action 1 If clogged c...

Page 20: ...P 2nd Mic on the Window Back Sub Assy Action 1 If dirty clean them 2 If the Sheet WP 2nd Mic is damaged replace the Window Back Sub Assy Check Inspect the Holder FPC Assy Audio Jack Action 1 If the Holder FPC Assy Audio Jack is damaged replace it Check Inspect the Gasket 2nd MIC on the main PBA Action 1 If the Gasket 2nd MIC is damaged replace it ...

Page 21: ...Troubleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 21 68 Problem Areas Microphone 2 Replace Main PBA ...

Page 22: ...If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean it 3 If the connector or cables of vibrator or vibrator itself is damaged replace the Vibrator 4 If the connector of vibrator on Display Frame Assy FPC is damaged replace the Display Frame Assy Check Inspect the BtB connector of Display Frame Assy FPC to Main PBA Action 1 If not properly connected disconnect and rec...

Page 23: ...uide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 23 68 Problem Areas Vibrator 3 If the BtB connector of Display Frame Assy FPC or FPC is damaged replace the Display Frame Assy 4 Replace Main PBA ...

Page 24: ... the external area of camera window Action 1 If dirty clean it 2 If scratched or damaged replace the Window Back Sub Assy 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 25: ... the video camera window Action 1 If dirty clean it 2 If scratched or damaged replace the Display Frame Assy 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 FPC or the Chat Camera is damaged replace the Chat Camera 4 Replace Main PBA ...

Page 26: ... 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 Sub Assy Check Inspect the Flash LED Light Guide on the Sub Antenna Assy Action 1 If dirty clean it 2 if scratched or damaged replace the Sub Antenna Assy ...

Page 27: ...bleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 27 68 Problem Areas Flash LED Check Inspect the flash LED on the Main PBA Action 1 If dirty clean it 2 Replace Main PBA ...

Page 28: ...WLAN connection failure Check Inspect the BT WLAN Flex Antenna contact pads on Sub Antenna Assy and the contact pins on main PBA Action 1 If dirty or oxidized clean the pads and pins 2 If the contact pads on Sub Antenna Assy or BT WLAN Flex Antenna film is damaged replace the Sub Antenna Assy 3 If the contact pins on main PBA is damaged replace Main PBA ...

Page 29: ... 1 NFC malfunctions Check Inspect the NFC antenna contact pads on Sub Antenna Assy 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 or NFC antenna film is damaged replace the Sub Antenna Assy 3 If the contact pins on main PBA is damaged replace Main PBA ...

Page 30: ...ions Check Inspect the Diversity GPS antenna contact pads on Sub Antenna Assy and the contact pins on Main PBA Action 1 If dirty or oxidized clean the pads and pins 2 If the Diversity GPS antenna contact pads or Diversity GPS antenna film is damaged replace the Sub Antenna Assy 3 If the contact pins on main PBA is damaged replace Main PBA ...

Page 31: ...ssy Relay Side Key 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 Assy Relay Side Key or FPC is damaged replace the FPC Assy Relay Side Key Check Inspect the compass chip on the FPC Assy Relay Side Key Action 1 If the compass chip is damaged replace the FPC Assy Relay Side Key 2 Replace Main PBA ...

Page 32: ...Troubleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 32 68 Problem Areas 1 16 Accelerometer 1 16 1 Accelerometer test fails Action Replace Main PBA ...

Page 33: ...Troubleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 33 68 Problem Areas 1 17 Gyroscope 1 17 1 Gyroscope test fails Action Replace Main PBA ...

Page 34: ... window area of light sensor on the Display Frame Assy Action 1 If dirty clean it 2 If scratched or damaged replace the Display Frame Assy Check Inspect the BtB connector of FPC Assy 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 Assy Audio Jack is damaged replace the FPC Assy Audio Jack ...

Page 35: ...1 Sony Mobile Communications AB Company Internal 35 68 Problem Areas Ambient Light Sensor Check Inspect the sensor on the FPC Assy Audio Jack Action 1 If dirty or clogged clean it 2 If damaged replace the FPC Assy Audio Jack 3 Replace Main PBA ...

Page 36: ... window area of light sensor on the Display Frame Assy Action 1 If dirty clean it 2 If scratched or damaged replace the Display Frame Assy Check Inspect the BtB connector of FPC Assy 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 Assy Audio Jack is damaged replace the FPC Assy Audio Jack ...

Page 37: ... 1 Sony Mobile Communications AB Company Internal 37 68 Problem Areas Proximity Switch Check Inspect the sensors on the FPC Assy Audio Jack Action 1 If dirty or clogged clean it 2 If damaged replace the FPC Assy Audio Jack 3 Replace Main PBA ...

Page 38: ...Troubleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 38 68 Problem Areas 1 20 Pressure Sensor 1 20 1 Pressure Sensor test fails N A No Pressure sensor in the phone ...

Page 39: ...heck Inspect the Cap SIM Action 1 If dirty clean it 2 If not properly assembled disassemble and reassemble 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 ...

Page 40: ... Problem Areas Water Resistance Check Inspect the FPC Assy Audio Jack Action If not properly assembled or damaged replace it Run the Water Resistance Test again Check Inspect the Magnetic charger connector Action If not properly assembled or damaged replace it Run the Water Resistance Test again ...

Page 41: ...Problem Areas Water Resistance Check Inspect the film for water resistance check Action If damaged replace the Display Frame Assy Run the Water Resistance Test again Check Inspect the Ear Speaker Action If damaged replace the Ear Speaker and Adhesive Earspeaker Run the Water Resistance Test again ...

Page 42: ...y microphone Action If damaged replace the Window Back Sub Assy Run the Water Resistance Test again Check Inspect the Main Antenna Speaker Sub Assy and loudspeaker sealing rubber Action 1 If dirty clean it 2 If Main Antenna Speaker Sub Assy is not properly assembled disassemble and reassemble 3 If the Main Antenna Speaker Sub Assy is damaged replace it ...

Page 43: ...bber is damaged replace the Display Frame Assy Run the Water Resistance Test again Check Inspect the edge of Display Frame Assy for damage and gap Action 1 If the edge of Display Frame Assy has gap replace it 2 If the Display Frame Assy is damaged replace it Run the Water Resistance Test again Check Inspect the edge of Window Back Sub Assy for damage and gap ...

Page 44: ... 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 44 68 Problem Areas Water Resistance Action 1 If the edge of Window Back Sub Assy has gap reassembly it 2 If damaged replace it Run the Water Resistance Test again ...

Page 45: ...Troubleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 45 68 Problem Areas 1 22 Real Time Clock 1 22 1 Real time clock test fails Action Replace Main PBA ...

Page 46: ...Troubleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 46 68 Problem Areas 1 23 Total call time 1 23 1 Total call time fails Action Replace Main PBA ...

Page 47: ...Troubleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 47 68 Problem Areas 1 24 External 1 24 1 Memory Card not detected N A ...

Page 48: ...Troubleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 48 68 Problem Areas 1 25 Security 1 25 1 Security fails Action Replace Main PBA ...

Page 49: ...ck Inspect the external port of the Audio Jack Action 1 If dirty or oxidized clean it Check Inspect the BtB connector of FPC Assy 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 Assy Audio Jack is damaged replace the FPC Assy Audio Jack 4 Replace Main PBA ...

Page 50: ...Troubleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 50 68 Problem Areas 1 27 Battery Health test 1 27 1 Battery Health test fails N A ...

Page 51: ...Troubleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 51 68 Problem Areas 1 28 Flip Slider Counter 1 28 1 Flip Slider Counter fails N A Not slider phone ...

Page 52: ...Troubleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 52 68 Problem Areas 1 29 Verify Certificates 1 29 1 Verify Certificates fails Action N A ...

Page 53: ...Troubleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 53 68 Problem Areas 1 30 IrDA Test 1 30 1 IrDA test fails N A No IrDA functionality in the phone ...

Page 54: ...h 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 54 68 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 55: ...k Inspect the main antenna film on the Main Antenna Speaker Sub Assy Action If damaged replace the Main Antenna Speaker Sub Assy Check Inspect the contact pads on the Main Antenna Speaker Sub Assy and the contact pins on PBA Sub Action 1 If dirty or oxidized clean the pads and pins 2 If the contact pads are damaged replace the Main Antenna Speaker Sub Assy ...

Page 56: ...gnal 3 If the contact pins are damaged replace the PBA Sub Check Inspect the RF connector of RF Cable to the PBA Sub Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean it 3 If the connector on the PBA Sub is damaged replace PBA Sub 4 If the RF cable is damaged replace the RF cable ...

Page 57: ...Main PBA Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean it 3 If the RF cable is damaged replace the RF cable 4 If the connector on the main PBA is damaged replace Main PBA Check Inspect the Diversity GPS antenna contact pads on Sub Antenna Assy and the contact pins on Main PBA Action 1 If dirty or oxidized clean the pads and pins ...

Page 58: ... Signal 2 If the Diversity GPS antenna contact pads or Diversity GPS antenna film is damaged replace the Sub Antenna Assy 3 If the contact pins on main PBA is damaged replace Main PBA Check Inspect the 2nd GSM antenna film on the Main Antenna Speaker Sub Assy Action If damaged replace the Main Antenna Speaker Sub Assy ...

Page 59: ...n on the FPC Assy Relay Side Key Action 1 If dirty or oxidized clean the pin and pad 2 If the contact pad is damaged replace the Main Antenna Speaker Sub Assy 3 If the contact pin is damaged replace the FPC Assy Relay Side Key Check Inspect the RF connector of FPC Assy 2nd Antenna to the FPC Assy Relay Side Key Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized c...

Page 60: ... Assy Relay Side Key is damaged replace FPC Assy Relay Side Key 4 If the FPC Assy 2nd Antenna is damaged replace the FPC Assy 2nd Antenna Check Inspect the RF connector of FPC Assy 2nd Antenna to the main PBA Action 1 If not properly connected disconnect and reconnect it 2 If dirty or oxidized clean it 3 If the FPC Assy 2nd Antenna is damaged replace it ...

Page 61: ...Troubleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 61 68 Problem Areas Network Signal 4 If the connector on the main PBA is damaged replace Main PBA ...

Page 62: ...irty 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 Use a...

Page 63: ... 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 Magnetic ...

Page 64: ...t 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 Assy Charger Pad is damaged replace the FPC Assy Charger Pad Check Inspect the contact pins on FPC Assy Charger Pad 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 damaged re...

Page 65: ... Assy Charger Pad are damaged replace the FPC Assy Charger Pad 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 66: ...e 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 Assy 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 Assy Audio Jack or FPC is damaged replace the FPC Assy Audio Jack 4 Replace Main PBA ...

Page 67: ... 1 Sony Mobile Communications AB Company Internal 67 68 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 68: ...Troubleshooting Guide mech 1279 7185 Rev 1 Sony Mobile Communications AB Company Internal 68 68 2 Revision History Rev Date Changes Comments 1 2013 Dec 06 Initial release ...

Search results

Summary of Contents for LT39t

Reviews:

Related manuals for LT39t

Brands by name

Popular brands

Sony LT39t, Troubleshooting Manual

Search results

Summary of Contents for LT39t

Reviews:

Related manuals for LT39t

Brands by name

Popular brands