User Guide

Nokia Customer Care Baseband Description and Troubleshooting
2115i/2116/2116i (RH-66)
Issue 1 03/2005 ©2005 Nokia Corporation Company Confidential Page 45
Audio
Faults
Page 3
Audio
Faults
Page 4
Is the internal
handsfree speaker
(IHF) working?
Select a ring tone
and measure signals
at L2003 and L2004.
Are the signals OK?
Change IHF
Measure GenIO28. Is
it OK (1.8V)?
Set the mobile terminal in Local
Mode. Use Phoenix
Troubleshooting > Phone
Control > Phone State Tab >
select Local Mode > Execute.
Then use Audio test > HP
microphone in/Ext Speaker out
> Loop ON. To enable IHF turn
on GenIO (10). Measure and
check IHF testpoints J150, J151.
Is it OK?
Change IHF
Change the UPP
NO YES
NO
YES
YES
Change UPP
NO
YES
NO