CCS Technical Documentation
Baseband Troubleshooting Instructions
Issue 1 10/02
¤
Nokia Corporation
Page 47
Figure 53: Audio Faults
Audio
faults
Is earpiece working?
Change earpiece.
Is it working now?
No
Retest
Yes
Set phone in LOCAL mode.
Use Phoenix Audio Test.
Set EXT IN, HP OUT, LOOP ON.
No
Measure DC
offset voltage
from earpiece pads.
Is it ~ 1.38 V?
Check L151, C160,
R164, and line.
If OK ->
change UEM.
No
Audio
faults 2
Yes
Measure MICB2
voltage from XMICP
pads (L106).
Is it ~ 2.2 V?
Yes
Check L106, C112,
R161, C163, R166,
C165, R167,
and line.
If OK ->
change UEM.
No
Earpiece 2
Yes
Содержание NSM-9DX
Страница 1: ...NSM 9DX Series Transceivers Issue 1 10 02 Nokia Corporation Troubleshooting Instructions ...
Страница 4: ...CCS Technical Documentation Page 2 Nokia Corporation Issue 1 10 02 ...
Страница 5: ...NSM 9DX Series Transceivers Issue 1 10 02 Nokia Corporation Baseband Troubleshooting Instructions ...
Страница 59: ...NSM 9DX Series Transceivers Issue 1 10 02 Nokia Corporation RF Troubleshooting Instructions ...