Trоubleshooting Guide.PDF

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Troubleshooting Guide
- electrical -
Xperia™ active
ST17i, ST17a
1249-2436 Rev 1
Sony Ericsson Mobile Communications AB – Company Internal
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Troubleshooting Guide (elec)
CONTENTS
1
2
For general information about electrical repair related issues, refer to
1220-1336: Generic Repair Manual - electrical
1249-2436 Rev 1
Sony Ericsson Mobile Communications AB – Company Internal 2(10)
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Troubleshooting Guide (elec)
1
Troubleshooting Flow
1.1
Display & Touch
Symptom:
Replace:
Display problem
X7002 , if damaged vision check all pins
1.2
Illumination
Symptom:
Replace:
No Display illumination
X7002 , if damaged vision check pin 19, 23 and 25
L7600 or L7610 , if more than 1 Ω
C7603 , if short circuit
V7601
N7600
Symptom:
Replace:
No Key Back Light
X5303 , if damaged vision check pin A7-A8
N7600
Symptom:
Replace:
No RGB LED
V5107
N7600
Symptom:
Replace:
No Flash LED
L7801 , if more than 1 Ω
1249-2436 Rev 1
Sony Ericsson Mobile Communications AB – Company Internal 3(10)
1007967339.003.png
 
Troubleshooting Guide (elec)
Troubleshooting Flow
1.3
Keys & Sensors
Symptom:
Replace:
On / Off key problems
R5205 , if more than 2.5 k Ω
S5207
Symptom:
Replace:
Back Key, Home Key, Menu Key and Display Touch Sensor problems
X5303 , if damaged vision check pin B1-B9
Symptom:
Replace:
Camera key problems
R5203 or R5204 , if more than 2.5 k Ω
S5205
Symptom:
Replace:
Volume Up key problems
R5200 or R5201 , if more than 2.5 k Ω
S5203
Symptom:
Replace:
Volume Down key problems
R5206 or R5207 , if more than 2.5 k Ω
S5204
Symptom:
Replace:
Proximity sensor problems
V5500 or V5501
N5500
Symptom:
Replace:
Ambient Light Sensor problems
N5600
N7600
Symptom:
Replace:
Compass problems
N5400
Symptom:
Replace:
Pressure Sensor problems
N5003
1.4
Alert
Symptom:
Replace:
Vibrator problems
R2832 or R2833 , if more than 2 Ω
B5100
1249-2436 Rev 1
Sony Ericsson Mobile Communications AB – Company Internal 4(10)
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Troubleshooting Guide (elec)
Troubleshooting Flow
1.5
Audio
Symptom:
Replace:
No audio
L1001 , if more than 1 Ω
Symptom:
Replace:
No Primary Microphone
B3501
Symptom:
Replace:
No Secondary Microphone
L3504 , L3505 or L3506 , if more than 1 Ω
B3502
Symptom:
Replace:
No or bad Earphone / Ear speaker
R2837 or R2839 , if more than 2 Ω
R3504 or R3505 , if more than 1 Ω
V3502 , if X3501 or X3502 is short circuit to GND
Symptom:
Replace:
No or bad Loudspeaker
X3500 or X3503 , if damaged
L3500 , L3501 , L3502 or L3503 , if more than 2 Ω
V3503 or V3505 , if X3500 is short circuit to GND
V3504 or V3506 , if X3503 is short circuit to GND
N3501
Symptom:
Replace:
No or bad Hands-free (PHF) Microphone
L3100 , L3604 , L3606 or R3620 , if more than 2 Ω
R3611 , if more than 15 K Ω
N3600
Symptom:
Replace:
No or bad Hands-free (PHF) Aux Earphone / Ear speaker
L3100 , L3600 , L3601 , L3602 or L3603 , if more than 2 Ω
N3600
Symptom:
Replace:
No Hands-free (PHF) Microphone – Phone not recognizes PHF set
R3616 , if more than 22 k Ω
L3100 , if more than 2 Ω
N3600
Symptom:
Replace:
No or bad FM Radio
L3605 , if more than 2 Ω
V3100
N8100
1249-2436 Rev 1
Sony Ericsson Mobile Communications AB – Company Internal 5(10)
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