Audio Related Faults 2: Headset - Nokia RH-18 Troubleshooting Instructions

RH-18/36/38

Audio related faults 2: Headset

Headset earpiece do not
Headset microphone do not
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work and the isn't any
mechanical problem
R183, Z102
Check R183, Z102 is
No
working correctly
(no open-circuit)
Defective D200*
work and the isn't any
mechanical problem
R166
No
Check voltage level on R166
towards UEM (bias) = 2,1V
Yes
R151
Check voltage level on R151
No
towards UEM (bias)
= 1,0V - 1,4V
Yes
R152, R165, R168,
C172, C170, C173,
No
C174, Z101
Check XMIC line to UEM
(D200)
Error still present
Defective D200*
Figure 10: Headset troubleshooting
Nokia Corporation.
CCS Technical Documentation
Replace :
C183 and/or Z102
Replace :
C183 and/or Z102
Check :
R166, R151, C171
Replace :
Defective component
Issue 1 10/03