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Troubleshooting guide electrical

Troubleshooting Guideelectrical - ST i ST a SO - c Xperia TM Ray - Rev ? Sony Ericsson Mobile Communications AB ?? Company Internal Page CTrouble Shooting Guide Repair Instruction Electrical Trouble Shooting Guide Electrical CONTENTS Troubleshooting Flow Display Illumination Keys Sensors Alert Audio On O ? Charging Capacity SIM Camera Data Communication Memory Stick Network Signal Revision History For general information about troubleshooting refer to - Generic Repair Manual - electrical - Rev ? Sony Ericsson Mobile Communications AB ?? Company Internal CTrouble Shooting Guide Repair Instruction Electrical Trouble Shooting Guide Electrical Troubleshooting Flow Display Symptom Display problem Replace X if damaged Z Z or Z vision check all pins - Rev ? Sony Ericsson Mobile Communications AB ?? Company Internal CTrouble Shooting Guide Repair Instruction Electrical Trouble Shooting Guide Electrical Troubleshooting Flow Illumination Symptom No Display illumination Replace X if damaged L if more than V Symptom No Key Back Light Replace X if damaged Symptom No Flash LED Replace X if damaged ? vision check pin B B and B vision check pins B -B and A -A vision check pins B and A -A - Rev ? Sony Ericsson Mobile Communications AB ?? Company Internal CTrouble Shooting Guide Repair Instruction Electrical Trouble Shooting Guide Electrical Troubleshooting Flow Keys Sensors Symptom On O ? key problem Replace X if damaged vision check pin B -B Symptom Home Key problem Replace X if damaged vision check pin B Symptom Back Key Menu Key Display Touch Sensor problem Replace X if damaged vision check pins A -A B -B Symptom Volume Up key problem Replace X if damaged vision check pin B B Symptom Volume Down key problem Replace X if damaged vision check pin B B Symptom Proximity sensor problem Replace X if damaged N vision check pins B -B Symptom Ambient Light Sensor problem Replace X if damaged vision check pins A -A Symptom Compass problem Replace N - Rev ? Sony Ericsson Mobile Communications AB ?? Company Internal CTrouble Shooting Guide Repair Instruction Electrical Trouble Shooting Guide Electrical Troubleshooting Flow Alert Symptom Vibrator problems Replace X if damaged vision check pin A -A - Rev ? Sony Ericsson Mobile Communications AB ?? Company Internal CTrouble Shooting Guide Repair Instruction Electrical Trouble Shooting Guide Electrical Troubleshooting Flow Audio Symptom No audio Replace L if more than Symptom No Primary Microphone Replace X if damaged vision check pin A A and A Symptom No Secondary Microphone Replace L or L if more than B Symptom No or bad Earphone Ear speaker Replace X if damaged vision check pin A and A Symptom Replace No or bad Loudspeaker X if damaged vision check pins B -B V if pin or pin is short circuit to GND N Symptom No or bad Hands-free PHF Microphone Replace X if damaged vision check pin A B B L or L if more than Symptom No or bad Hands-free PHF Aux Earphone Ear speaker Replace X if damaged vision check pin A A