Tyco Electronics M/A-COM MM23016 - Manual (Page 93)

MM23016, Rev. C
93
12 BASIC TROUBLESHOOTING
If the radio is not operating properly, check Table 12-1 for likely causes. For additional assistance,
contact a qualified service technician.
Table 12-1: Basic Troubleshooting
SYMPTOM CAUSE SOLUTION
Radio will not turn on. No power.
Test the connection to the vehicle power
supply.
Radio will not turn off.
If in multiple control head
configuration, one of the attached
control heads is still powered up.
Power off all control heads.
Radio will not register
or does not receive
provisioning data.
Bad log in credentials. Check log in and password.
No audio. Speaker volume is muted. Increase the volume level.
Poor audio.
Transmitting or receiving in a
poor coverage area or subject to
interference.
Check network connectivity and move to a
better coverage area if possible. Report the
area without coverage to an authorized
network technician.
Poor display visibility.
Ambient Light Sensor is
obstructed. Clear the obstruction and give the sensor a
clear path to ambient light.
No network
connectivity icon in
display.
Radio is out-of-range or cannot
connect with the OpenSky
network.
Base station network connection
has failed.
Return to coverage area if possible and
wait for condition to clear.
Use single-site trunking or switch to an
alternate channel.
Radio will not
transmit. Radio may be out of coverage
area or may be overheated.
Return to coverage area if possible. If
overheated, let radio cool before retrying
transmission. Report this failure to an
authorized technician.
“Warning: No MRU”
Message.
Radio control head is unable to
communicate with mobile radio
unit (radio transceiver).
Have the radio connections checked by an
authorized technician.
Control head
randomly changes
display.
In multiple control head
configurations, another user is
operating the radio from another
control head.
None
Encrypted calls cannot
be made.
Not authorized to use.
Contact system administrator to request
encryption privileges.
Screen displays:
UNAUTH3
The radio network ID has not
been added to the network.
Contact system administrator.
Screen displays:
NOAUTHV
Radio authentication of the
VNIC failed.
Contact system administrator.