
Sony Mobile Communications AB – Company Internal
Test Instructions (mech)
CONTENTS
1 Pre-Test Preparation ...................................................................... 4
1.1 Process flow – Water Resistance Test (WRT) for incoming units .... 4
1.2 Hardware ............................................................................................... 5
1.2.1 Water indicator inspe ct io n-L39t/L39u Specific ......................................... 5
1.2.2 Water indicator inspe ct io n-C6916 Specific ............................................... 6
1.3 Test Enablers ........................................................................................ 7
1.4 Software ................................................................................................ 8
1.4.1 Software update ........................................................................................... 8
2 Tests ................................................................................................ 9
2.1 Service Test Mode ................................................................................ 9
2.2 Service Tests ...................................................................................... 10
2.2.1 Keyboard & Switch .................................................................................... 10
2.2.1 Touch Screen ............................................................................................. 10
2.2.2 Display ........................................................................................................ 10
2.2.3 LED/Illumination ........................................................................................ 11
2.2.4 Speaker ....................................................................................................... 11
2.2.5 Stereo speaker ........................................................................................... 11
2.2.6 Earphone .................................................................................................... 12
2.2.7 Microphone ................................................................................................ 12
2.2.8 Secondary Microphone ............................................................................. 13
2.2.9 Vibrator ....................................................................................................... 13
2.2.10 Camera ....................................................................................................... 14
2.2.11 Secondary Camera .................................................................................... 14
2.2.12 Flash LED ................................................................................................... 14
2.2.13 Radio Antenna ........................................................................................... 15
2.2.14 Bluetooth .................................................................................................... 15
2.2.15 WLAN .......................................................................................................... 16
2.2.16 NFC ............................................................................................................. 16
2.2.17 GPS ............................................................................................................. 16
2.2.18 Compass .................................................................................................... 17
2.2.19 Accelerometer ............................................................................................ 17
2.2.20 Gyroscope .................................................................................................. 18
2.2.21 Ambient Light Sensor ............................................................................... 18
2.2.22 Proximity switch ........................................................................................ 19
2.2.23 Pressure Sensor ........................................................................................ 19
2.2.24 Water Proof ................................................................................................ 19
2.2.25 Real time clock .......................................................................................... 20
2.2.26 Total call time ............................................................................................. 20
2.2.27 Storage-L39t/L39u Specific ....................................................................... 20
2.2.28 Storage-C6916 Specific ............................................................................. 21
2.2.29 Security ...................................................................................................... 21
2.2.30 FM Radio .................................................................................................... 21
2.2.31 Battery Health test ..................................................................................... 22
2.2.32 Flip slider counter ..................................................................................... 22
2.2.33 Verify certificates ....................................................................................... 22
2.2.34 IrRemote Test ............................................................................................. 23
1279-7188 Rev 4

Sony Mobile Communications AB – Company Internal
Test Instructions (mech)
2.2.35 IrDA Test ..................................................................................................... 23
2.2.36 TV-Out Test ................................................................................................ 23
2.3 Manual Tests ...................................................................................... 26
2.3.1 SIM test ....................................................................................................... 26
2.3.2 On/Off key test ........................................................................................... 26
2.3.3 Home key test ............................................................................................ 26
2.3.4 Multitask key test ....................................................................................... 27
2.3.5 Audio Jack test .......................................................................................... 27
2.3.6 Data Communication test ......................................................................... 27
2.3.7 Charging (Charger or Computer) ............................................................. 28
2.4 Battery Test ........................................................................................ 30
2.5 Network Test....................................................................................... 31
2.5.1 Procedure (GSM & UMTS & TDSCDMA) .................................................. 31
2.5.2 On-the-air call to mobile-L39t Specific .................................................... 32
2.5.3 On-the-air call to mobile-L39u Specific ................................................... 33
2.5.4 On-the-air call to mobile-C6916 Specific ................................................. 34
3 Calibrations ................................................................................... 35
4 Revision History ........................................................................... 36
For general information about test procedures, refer to
1220-1333: Generic Repair Manual – mechanical
If there are no special indications of ‘L39t/L39u Specific’, ‘L39u Specific’ or ‘C6916 Specific’, L39t,
L39u and C6916 share the same test instruction as common sections, whose pictures are used
with L39t. ‘L39t/L39u Specific’ chapters use L39t pictures.
1279-7188 Rev 4

Sony Mobile Communications AB – Company Internal
Test Instructions (mech)
1 Pre-Test Preparation
1.1 Process flow – Water Resistance
Test (WRT) for incoming units
Follow the process according the 1269-3536 Water Resistant Test for PC - mechanical in the including
document Test Instruction WRT
Remove the Speaker Panel following Working Instruction1278-7506.
Install the “WRT Inlay plate” into the generic
“WRT Generic Side Inlay”
Connect it according to 1269-3536 Water Resistant Test for
PC - mechanical in the including document Test Instruction
WRT.
Notice! Secondary microphone hole on the back of the
phone must be sealed before test.
Attach Speaker Panel following Working Instruction 1278-
7506.
1279-7188 Rev 4