Tait TM8100 mobiles, Service Manual

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262 Receiver Fault Finding TM8100/TM8200 Service Manual
© Tait Electronics Limited November 2007
10.5 Faulty Radio Mute
Introduction
If the radio mute is faulty, the calibration settings are suspect. There are three
tasks:
■
Task 14 : determine type of muting selected
■
Task 15 : noise muting selected
■
Task 16 : RSSI muting selected
The programming application is required for Task 14 , and the calibration
application for Task 15 and Task 16 .
Task 14 —
Determine Type of
Muting Selected
First use the programming application to determine the type of muting
selected.
1. In the programming application click the
“Basic Settings”
page under
the “Networks” heading.
2. Click the
“Basic Network Settings”
tab.
3. Check the setting in the “Squelch Detect Type” field. Ensure that the
setting is what the Customer expects.
4. If the setting is
“Noise Level”
, implying that noise muting is selected,
go to Task 15 . If the setting is “Signal Strength” , implying that RSSI
muting is selected, go to Task 16 .