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Service & Analysis Center Europe
SACE AMS Training Group
EXTERNAL AUDIO PROBLEMS
1) External mic problems (Xmic )
Check C158 ( if broken or bend )
In this case : Use a new RTC battery, the length of spring-connectors are
the reason for bending the capacitor.
Check X200 . This item must be clean. Also check the soldering of the MBUS- connectors.
Check Z100, V106 input and output.
Change COBBA, note : Rewriting of IMEI and SIMlock data is necessary after changing the COBBA!
If Error persists. Probably MAD or PCB is defect.
2) External ear problems (Xear)
Check X200 – contacts and soldering.
Check Z102.
Check R114, V107 input and output.
Check Vbb at R112 = 2,8V DC.
Change COBBA , note : Rewriting of IMEI and SIMlock data is necessary after changing COBBA!
If error persists, probably MAD or PCB is defect.
Repairhints_nse5_002508
CONFIDENTIAL
NSE-5
Repairhints
30.07.2000
Checked by:
AMS TRAINING GROUP
24 (30)
Version 1.0 Approved
Approved by:
SACE
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