Nokia RM-12 Troubleshooting Instructions page 60

CCS Technical Documentation
Internal Hands Free Speaker (2)
58
See the previous flow chart
YES Note! OMAP, UEM and UPP are unchangeable.
Set Phoenix Audio R outing
f rom a working MIC input
MIC 1 (H pMic) or MIC 2
(H dMic) to XEAR . Ensure
the correct MIC bias is
on.
Is the D C bias
seen at XEAR
output of the
U EM?
(at C 4104)
YES
Are audio signals
f rom U EM OK?
(at C 4104, R 4100,
C 4105)
YES
D oes audio work in
a call?
YES
END
COMPANY CONFIDENTIAL
Copyright © 2004 Nokia. All Rights Reserved.
NO
C hange
U EM
NO
C hange
U EM
NO
C hange
U PP
RM-12
Issue 1 11/2004