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Troubleshooting Guide
- electrical -
XperiaTM active
ST17i, ST17a
1249-2436 Rev 2 Sony Ericsson Mobile Communications AB Company Internal
CONTENTS
1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 1.10 1.11 1.12
Troubleshooting Guide (elec)
1 Troubleshooting Flow ...................................................................... 3
2 Revision History ............................................................................. 10
For general information about electrical repair related issues, refer to 1220-1336: Generic Repair Manual - electrical
Display & Touch .................................................................................... 3 Illumination ............................................................................................ 3 Keys & Sensors ..................................................................................... 4 Alert ........................................................................................................ 4 Audio ...................................................................................................... 5 On/Off ..................................................................................................... 6 Charging & Capacity ............................................................................. 7 SIM .......................................................................................................... 7 Camera ................................................................................................... 7 Data Communication ............................................................................. 8 Memory Card.......................................................................................... 8 Network & Signal ................................................................................... 9
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1.1
Troubleshooting Flow
Display & Touch
vision check all pins
Troubleshooting Guide (elec)
Symptom: Display problem Replace: X7002, if damaged
1.2
Illumination
Symptom: No Display illumination Replace: X7002, if damaged vision check pin 19, 23 and 25 L7600 or L7610, if more than 1 C7603, if short circuit V7601 N7600 Symptom: No Key Back Light Replace: X5303, if damaged N7600 Symptom: No RGB LED Replace: V5107 N7600 Symptom: No Flash LED Replace: L7801, if more than 1 vision check pin A7-A8
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Troubleshooting Flow
Troubleshooting Guide (elec)
1.3
Keys & Sensors
Symptom: On / Off key problems Replace: R5205, if more than 2.5 k S5207 Symptom: Back Key, Home Key, Menu Key and Display Touch Sensor problems Replace: X5303, if damaged vision check pin B1-B9 Symptom: Camera key problems Replace: R5203 or R5204, if more than 2.5 k S5205 Symptom: Volume Up key problems Replace: R5200 or R5201, if more than 2.5 k S5203 Symptom: Volume Down key problems Replace: R5206 or R5207, if more than 2.5 k S5204 Symptom: Proximity sensor problems Replace: V5500 or V5501 N5500 Symptom: Ambient Light Sensor problems Replace: N5600 N7600 Symptom: Compass problems Replace: N5400 Symptom: Pressure Sensor problems Replace: N5003
1.4
Alert
Symptom: Vibrator problems Replace: R2832 or R2833, if more than 2 B5100
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Troubleshooting Flow
Troubleshooting Guide (elec)
1.5
Audio
Symptom: No audio Replace: L1001, if more than 1 Symptom: No Primary Microphone Replace: B3501 Symptom: No Secondary Microphone Replace: L3504, L3505 or L3506, if more than 1 B3502 Symptom: No or bad Earphone / Ear speaker Replace: R2837 or R2839, if more than 2 R3504 or R3505, if more than 1 V3502, if X3501 or X3502 is short circuit to GND Symptom: No or bad Loudspeaker Replace: X3500 or X3503, if damaged L3500, L3501, L3502 or L3503, if more than 2 V3503 or V3505, if X3500 is short circuit to GND V3504 or V3506, if X3503 is short circuit to GND N3501 Symptom: No or bad Hands-free (PHF) Microphone Replace: L3100, L3606 or R3620, if more than 2 R3611, if more than 15 K N3600 Symptom: No or bad Hands-free (PHF) Aux Earphone / Ear speaker L3100, L3600, L3601, L3602 or L3603, if more than 2 Replace: N3600 Symptom: No Hands-free (PHF) Microphone Phone not recognizes PHF set Replace: R3601, if more than 22 k L3100, if more than 2 N3600 Symptom: No or bad FM Radio L3605, if more than 2 Replace: V3100 N8100
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Troubleshooting Flow
Troubleshooting Guide (elec)
1.6
On/Off
Symptom: Current draw greater than 300 mA Replace: N2801C, if getting hot N2900C, N2902C or N2903C, if getting hot Symptom: Current draw when powered off Replace: N2801C, if getting hot N2900C, N2902C or N2903C, if getting hot Symptom: Using no current when On/Off key is pressed and will not start Replace: R5205, if more than 2,5 k S5207 Symptom: Draws current when On/Off key is pressed, returns to zero Replace: L1000, L1003, L1004, L2400C or L2401C, if more than 1 N2401C Symptom: Other Replace: X1300, if damaged vision check all pins
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Troubleshooting Flow
Troubleshooting Guide (elec)
1.7
Charging & Capacity
Symptom: No or bad Charging from USB Replace: X2200, if damaged vision check pin 1 and 5 X1300, if damaged vision check all pins C1317 or C2200, if X2200 pin 1 is short circuit to GND L1300C, if more than 1 N1303C Symptom: No trickle Charging Replace: L1306, if more than 1 N1304
1.8
SIM
Symptom: SIM not detected Replace: X4000, if damaged vision check all pins V4000, if X4000 pin 2 or 3 is short circuit to GND
1.9
Camera
vision check all pins
Symptom: Main Camera problems Replace: X7301, if damaged L1002, if more than 1
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Troubleshooting Flow
Troubleshooting Guide (elec)
1.10 Data Communication
Symptom: No communication via the USB Connector, charging via USB connector is working Replace: X2200, if damaged vision check pin 2, 3 and 4 N2200, if X2200 pin 2, 3 or 4 are short circuit to GND Z2200, if more than 4 between pin 1-2 and more than 4 between pin 3-4 Symptom: No Bluetooth and WLAN connection Replace: L8100, if more than 2 N8102 Symptom: Bad Bluetooth and WLAN connection Replace: X8420 or X8421, if damaged X8401, if more than 1 between term A and C Z8001 Symptom: No Bluetooth and / or WLAN connection Replace: N8100 N8101 Symptom: No GPS connection Replace: X8423, if damaged Z8401 or Z8403 N8401
1.11 Memory Card
Symptom: Memory Card (micro SD) not detected Replace: X4100, if damaged vision check pin all pins V4100
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Troubleshooting Flow
Troubleshooting Guide (elec)
1.12 Network & Signal
Symptom: Phone fails to lock on to network during radiated (wireless) Go/ NoGo test Action: Use RF probe to perform conducted Go / NoGo test Symptom: Phone passes conducted (RF cable) Go / NoGo test but fails radiated (wireless) Go / NoGo test Check: X2800 and X2802 for damage and replace, if necessary X1006, X1007, X1008, X1009, X1010, X1011 and X1012 for damage and replace if X2801 for damage and replace, if more than 1 between A and C term Check: RF Antenna at the Cover Battery for damage and replace, if necessary Action: Rerun the phone through radiated (wireless) Go / NoGo testing Symptom: Phone fails conducted (RF probe) Go/NoGo test Action: Run the calibration routine Symptom: Fails conducted (RF probe) Go/NoGo test, but passes calibration Action: Rerun the phone through Go/NoGo testing Symptom: Fails any part of the calibration routine Check: X2801 for damage and replace, if more than 1 between RF probe and C term or A and C term is short circuit then the probe is inserted. Replace: N2803C, if GSM Low band Rx fault N2803C or Z2800C, if High band Rx fault N2803C, if WCDMA Rx fault V1305, N2801C or N2803C, if GSM Tx fault N2900C or N2803C, if WCDMA Tx band 5 or 8 fault N2903C or N2803C, if WCDMA Tx band 1 fault N2902C or N2803C ,if WCDMA Tx band 2 fault
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Rev. 1 2
Revision History
Date 2011-Sept-26 2011-Nov-22 Changes / Comments Initial release
Troubleshooting Guide (elec)
Audio - removed L3604 and changed R3616 to R3601.
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