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Symptom
The trackball does
cannot be moved
smoothly.
Although the power is
supplied and the screen
is displayed, the display
is frozen, disabling
processing to advance
up to display of the task
menu.
Some task menus
cannot be selected.
The cursor is not
displayed correctly.
Characters/symbols are
not displayed correctly.
Position information
(GPS) is not displayed.
Section 20 Failures and After-Sale Services
Cause
The trackball is dirty.
The central control unit
(NDC-1590E/AE) is abnormal.
The device license has not been
installed.
The central control unit
(NDC-1590E/AE) is faulty.
The central control unit
(NDC-1590E/AE) is faulty.
The communication is not set
correctly.
The power supply for the GPS
equipment is not turned on.
The GPS equipment does not
perform positioning.
The connection with the GPS
equipment is abnormal.
The power supply for the serial-LAN
interface circuit (CMH-2370) is not
turned on.
(Case where the GPS equipment is
connected to the serial-LAN interface
circuit)
The serial-LAN interface circuit
(CMH-2370) is faulty.
(Case where the GPS equipment is
connected to the serial-LAN interface
circuit)
The internal wiring is faulty.
The central control unit
(NDC-1590E/AE) is faulty.
Clean the trackball.
Make a request to the distributor for
repair.
Install the license of the device to be
used.
Make a request to the distributor for
repair.
Make a request to the distributor for
repair.
Set the communication correctly.
Turn on the power supply for the
GPS equipment.
Check the state of the GPS
equipment.
Check the connection with the GPS
equipment.
When GPS equipment is connected
to the serial LAN interface circuit,
check if the LED of the corresponding
port is lit at data reception.
Turn on the power supply for the
serial-LAN interface circuit.
Make a request to the distributor for
repair.
Make a request to the distributor for
repair.
Make a request to the distributor for
repair.
20-6
Action
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