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3. MAINTENANCE & TROUBLESHOOTING
3-4
3.3 Troubleshooting
This section provides simple troubleshooting procedures which the user can
follow to restore normal operation. If you cannot restore normal operation do not
attempt to check inside the unit. Any trouble should be referred to a qualified
technician.
If . . . then . . .
you cannot turn on the power
-ask serviceman to replace the blown
fuse.
-check battery for proper voltage
output.
the equipment receives unwanted
messages.
confirm that “Manual” is chosen at
Receive Mode on the NAVTEX menu.
check equipment by the diagnostic
test.
check the broadcasting schedule.
check that the D-sub connector is
firmly fastened.
NAVTEX signal cannot be received.
check that the antenna cable is firmly
fastened.
paper does not advance. (NX-700A only) load paper correctly.
paper feeds but no recording. (NX-700A
only)
check if correct thermal paper is being
used.
paper has darkened. (NX-700A only)
keep the paper in a well-ventilated and
cool place.
check the setting of Printer on the
System menu.
check the printer cable.
check that the power of printer is
turned on and status is
“SELET/READY”.
check that the printer is available.
the recording is not proper for the external
printer. (NX-700B only)
check that paper is set properly.