User Guide

ISSUE 1 09/2004 COMPANY CONFIDENTIAL 17
Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54
Nokia Customer Care
■ Audio troubleshooting 3: Headset does not work
Figure 12:Headset does not work
Headset microphone do not
work and the isn't any
mechanical problem
Replace :
Z101
Defective D200*
Z101
Check Z101 is working
correctly
(No short/open circuit)
No
R151
Check voltage level on R151
towards UEM (bias) = 1,0V -
1,4V
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
Check :
R156, C170, C174, C172,
R169
No