Nokia RH-41 Series Troubleshooting Instructions page 14

RH-41
Troubleshooting Instructions
(Audio test/Hp In Ext Out) must be switched on by the Phoenix service software. This loop
will connect audios only through the UEM. In this case, the UPP is not used.
3 Run the audio-loop self-test with Phoenix (BB Self Tests/
ST_EAR_DATA_LOOP_TEST). This loop will test the ear-data/mic-data lines
between the UPP and the UEM.
Earpiece or external microphone line does not work
E arpiec e
does n't work
R un audio loop s elf-
tes t with P hoenix
OK
C hec k R 157
OK
C hec k earpiec e
OK
C hange UE M
Page 14
F ail
Figure 4: Fault tree, earpiece failure
Nokia Corporation
CCS Technical Documentation
F eed 1K Hz to XMIC
by J B A -8 and
meas ure from
earpiec e
OK
F ail
C hange UP P
Confidential Issue 2 09/2003