Audio Failure; Uplink Or Downlink Failure - Nokia RM-14 Baseband Troubleshooting And Manual Tuning

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Audio failure

Uplink or downlink failure

Is there an
Yes
Yes
undistorted?
Yes
Yes
Is there no
22
Figure 13:Uplink or downlink failure
uplink
Is problem
uplink or
downlink
Go to "Uplink
No
missing audio
audio
signal"
signal?
Is audio Go to "Uplink
No
level weak audio
sufficient? signal
Is audio Go to "Uplink
No
signal distorted
audio signal"
Is TDMA
No
Go to "Uplink
noise
TDMA noise"
inaudible
Go to
No
acoustical "Acoustical
feedback feedback"
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Baseband Troubleshooting and Manual
Start
downlink
Is there an
No
"Downlink
audio
audio signal
signal?
missing"
Yes
Is audio
No
"Downlink
level
audio signal
sufficient?
Yes
Is audio
No
"Downlink
signal
audio signal
undistorted?
distorted"
Yes
Is audio
No
"Downlink
signal free
audio signal
of noise
Yes
Is TDMA
No
noise "Downlink
inaudible TDMA noise"
Yes
Is there no
No
"Acoustical
acoustical
feedback"
feedback
Yes
No
Click noise, audio
Software
signal too loud or
error or bad
bad picture/
sound
synchronization
RM-14
Go to
Go to
weak"
Go to
Go to
noise"
Go to
Go to
TIKU
ISSUE 1 11/04