Audio Faults 4 - Nokia RH-37 Series Baseband Troubleshooting Instructions

Nokia Customer Care

Audio faults 4

Audio
faults
4
Is
IHF speaker
working?
Yes
END
Check C2164,
L2151, L2152,
L2154, L2155,
R2152, R2155,
lines and Vbat. If
OK change
UEMEK.
Issue 1 07/04
Change
speaker.
No
Is it working
now?
Yes
Measure
DC volts on speaker pads.
Are they ~0.5Vbat (to
GND)
No
Nokia Corporation
6(a) - BB Troubleshooting Instructions
No
Set Phone in LOCAL
mode.
Use Phoenix Audio Test.
Set Ext microphone in Ihf
speaker out, Loop On.
Yes
Check C2164, C2180. If
OK change UEMEK.
Retest
RH-37
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