Troubleshooting
Phenomena Analysis Solution
The terminal cannot be
powered on.
The power cord is connected improperly. Connect the power cord correctly.
The terminal unit and the front panel are
connected improperly (for split-type terminal
only).
Connect the terminal unit and front panel
correctly.
The terminal unit and the front panel are
connected with a damaged cable (for split-
type terminal only).
Replace the cable with a new one and
connect the terminal unit and front panel
correctly.
An abnormal voltage is output from the
vehicle battery.
Check the battery strength.
The power cord is damaged. Replace the power cord with a new one.
The called party cannot
hear clearly.
The palm microphone and the terminal are
connected improperly.
Connect the microphone to the terminal
correctly.
The palm microphone is damaged.
Replace the microphone and connect them
correctly.
Network registration fails
or network cannot be
found.
Your terminal is operating in DMO mode. Switch to TMO mode.
Your terminal is not within the network cov-
erage.
Check the signal strength. Make sure the
terminal is within the network coverage.
The terminal is not granted network access.
Contact the network operator. Make sure
the terminal is authorized.
Calls cannot be initiated
in TMO mode.
The terminals are not within the network
coverage.
Check the signal strength. Make sure all the
terminals are within the network coverage.
The called party is operating in DMO mode.
Make sure the called party switches to TMO
mode.
Calls cannot be initiated
in DMO mode.
The terminals are not within a valid commu-
nication range.
Make sure all terminals are within the com-
munication range.
The called party is operating in TMO mode.
Make sure the called party switches to
DMO mode.
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