Nokia 2600 服务手册
RH-59/60
Nokia Customer Care
16
COMPANY CONFIDENTIAL
ISSUE 1 09/2004
Copyright © 2004 Nokia. All Rights Reserved.
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Audio related faults 2: Headset
Figure 10:Headset troubleshooting
Headset earpiece do not
work and the isn't any
mechanical problem
Replace :
C183 and/or Z102
Defective D200*
R183, Z102
Check R183, Z102 is
working correctly
(no open-circuit)
(no open-circuit)
No
Headset microphone do not
work and the isn't any
mechanical problem
Replace :
C183 and/or Z102
Defective D200*
R166
Check voltage level on R166
towards UEM (bias) = 2,1V
No
R152, R165, R168,
C172, C170, C173,
C172, C170, C173,
C174, Z101
Check XMIC line to UEM
(D200)
Check :
R166, R151, C171
R151
Check voltage level on R151
towards UEM (bias)
= 1,0V - 1,4V
No
Yes
Yes
Error still present
Replace :
Defective component
No