Tyco Electronics M/A-COM M7200 - Manual (Page 39)

MM23016
7 BASIC TROUBLESHOOTING
If the radio is not operating properly, check Table 7-1 for likely causes. For additional assistance, contact
a qualified service technician.
Table 7-1: 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 logon credentials. Check logon 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.
Radio will not
transmit (transmit
indicator does not
flash). Radio may be experiencing low
voltage. The M7200 will cease to transmit if the
voltage drops below 8.5 volts. Have the
battery checked by an authorized
technician.
Radio powers off for
no apparent reason. Radio may be experiencing very
low voltage. The M7200 automatically powers down
when voltage drops below +5.0 volts.
Have the battery checked by 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.
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