Troubleshooting Guide (elect)
1225-1023
Rev 1
Troubleshooting Flow
1.12 Network & Signal
Symptom:
Replace:
Phone fails to lock on to network during radiated (wireless) Go/NoGo test
Use RF probe to perform conducted Go/NoGo test
Symptom:
Check:
Replace:
Action:
Phone passes conducted (RF cable) Go/NoGo test but fails radiated (wireless) Go/NoGo
test
X1000
,
X1001
,
X1002
,
X1003
,
X1004
and
X1005
for damage and replace, if necessary
X1200
for damage and replace, if necessary
Antenna frame
Rerun the phone through radiated (wireless) Go/NoGo testing
Symptom:
Action:
Phone fails conducted (RF probe) Go/NoGo test
Run the calibration routine
Symptom:
Action:
Fails conducted (RF probe) Go/NoGo test, but passes calibration
Rerun the phone through Go/NoGo testing
Symptom:
Replace:
Fails any part of the calibration routine
X1200
, if damaged
N1200
, if GSM fault
N1200
or
N1210
, if UMTS fault
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Sony Ericsson Mobile Communications AB – Company Internal
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