11. MAINTENANCE & TROUBLESHOOTING
11-3
11.4
Simple 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.
*: When turning off and on again the breaker, press the [POWER/BRILL] key to power
on the equipment.
General troubleshooting
If ...
Then ...
you cannot turn on the power
check for blown fuse.
check that the power connector is firmly fastened.
check for damaged power cable.
check battery for proper voltage output.
press the [POWER/BRILL] key a little harder.
no picture appears
press the [POWER/BRILL] key and then rotate the
[ENTER] knob.
there is no response when a key is
pressed
turn off and on the power.
the picture goes off suddenly*
press the [POWER/BRILL] key to turn the power
on.
Plotter troubleshooting
If ...
Then ...
position is not fixed within 90 seconds
check that antenna connector is firmly fas-
tened.
check number of satellites received, on the
GPS STATUS display.
position is wrong
enter position offset, on the ADVANCED
menu.
the track is not plotted
check that On is selected at TRACK in the
PLOTTER menu.
check that On is selected at VISIBLE in the
PLOTTER menu.
bearing is wrong
check the VARIATION in the ADVANCED
menu.
the ship's speed indication is not zero
after the ship is stopped
try to decrease SPEED FILTER in the
ADVANCED menu.
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