Sony Ericsson WT19a User manual

1251-5712 Rev 1
Sony Ericsson Mobile Communications AB –Company Internal
1(15)
Troubleshooting Guide
- electrical -
WT19a, WT19i
Sony Ericsson Live with Walkman

Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
1257-5712 Rev 1
Sony Ericsson Mobile Communications AB –Company Internal
2(15)
CONTENTS
1Troubleshooting Flow......................................................................3
1.1 Display.....................................................................................................3
1.2 Illumination .............................................................................................4
1.3 Keys & Sensors......................................................................................5
1.4 Alert.........................................................................................................6
1.5 Audio.......................................................................................................7
1.6 On/Off......................................................................................................8
1.7 Charging & Capacity ..............................................................................9
1.8 SIM.........................................................................................................10
1.9 Camera..................................................................................................11
1.10Data Communication............................................................................12
1.11Memory Stick / Card.............................................................................13
1.12Network & Signal..................................................................................14
2Revision History.............................................................................15
For general information about mechanical repair related issues, refer to
1220-1336: Generic Repair Manual –electrical

Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
1257-5712 Rev 1
Sony Ericsson Mobile Communications AB –Company Internal
3(15)
1 Troubleshooting Flow
1.1 Display
Symptom:
Replace:
Display problems
X7100, if damaged vision check all pins
Z7800 or Z7801

Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
1257-5712 Rev 1
Sony Ericsson Mobile Communications AB –Company Internal
4(15)
Troubleshooting Flow
1.2 Illumination
Symptom:
Replace:
No Display illumination
X7100, if damaged vision check pin 2, 3 and 5
L7600 or L7610 , if more than 1 
C7603 , if short circuit
V7601
N7600
Symptom:
Replace:
No Key Back Light
X7600, if damaged vision check pin 14-16
N7600
Symptom:
Replace:
No Right Top Light
V7602
N7600
Symptom:
Replace:
No Left Top Light
V7603
N7600
Symptom:
Replace:
No R G B MMI LED s
N7806/V1003
Symptom:
Replace:
No Flash LED
L7801,if more than 1 

Trouble Shooting Guide Repair Instruction Electrical/Trouble Shooting Guide, Electrical/
1257-5712 Rev 1
Sony Ericsson Mobile Communications AB –Company Internal
5(15)
Troubleshooting Flow
1.3 Keys & Sensors
Symptom:
Replace:
On / Off key problems
S52
Symptom:
Replace:
Back Key, Menu Key and Display Touch Sensor problems
X7600, if damaged vision check pin 1-13
N5300
Symptom:
Replace:
Volume Up key problems
S110
Symptom:
Replace:
Volume Down key problems
S111
Symptom:
Replace:
Camera key problems
S112
Symptom:
Replace:
Walkman key problems
S113
Symptom:
Replace:
Proximity sensor problems
N7606/V1001 or N7606/V1002
N7606/N1001
Symptom:
Replace:
Ambient Light Sensor problems
N7806/N1
N7600
Symptom:
Replace:
Compass problems
N5401