User Guide

Nokia Customer Care Troubleshooting - Baseband
6015/6015i/6016i/6019i (RH-55), 6012 (RM-20)
Issue 1 - Revision 002 09/2004 ©2004 Nokia Corporation Company Confidential Page 39
IHF
Audio
faults,
page 3
Is IHF working?
Check IHF audio
amplifier (N150).
Is it OK?
Replace N150.
Set the phone to Local Mode. Use
Phoenix to open Troubleshooting >
Phone Control > Phone State tab >
select Local Mode > click Execute.
Then use Audio test > HP
microphone in/ Ext speaker out >
Loop ON. To enable IHF, turn on
GenIO(10). Measure and check IHF
test points J150 and J151. Is it OK?
Check
GenIO(10). If not
OK, change the
UEM.
Change IHF speaker.
NO NO
YES
NO
YES
YES
Audio
faults,
page 4