11. MAINTENANCE, TROUBLESHOOTING
11-2
11.2
How to Replace the Fuse
The fuse in the fuse holder on the power cable protects the display unit from high elec-
tric current and equipment fault. If you cannot turn on the power, check the fuse to see
if it has blown. If the fuse has blown, find the reason before you replace the fuse. If the
fuse blows again after the replacement, contact your dealer for advice.
11.3
Troubleshooting
This section provides simple troubleshooting procedures which the user can follow to
restore normal operation. If you cannot restore normal operation, do not check inside
the unit. Have a qualified technician check the equipment.
WARNING
Use the proper fuse.
Use of a wrong fuse can result in fire and dam-
age the equipment.
Problem
Remedy
General Troubleshooting
You cannot turn on
the power.
• Check for blown fuse.
• Check that the power connector is tightly fastened.
• Check for corrosion on the power cable connector.
• Check for damaged power cable.
• Check the battery voltage is 10.8 to 31.2 V.
No picture
appears.
Press the
POWER/BRILL
key and rotate the
RotoKey
TM
clock-
wise to raise the brilliance.
There is no re-
sponse when a key
is pressed.
Turn off and on the power. If you do not get a response, the key
is damaged. Contact your dealer for instructions.
Plotter Troubleshooting
Position is not fixed
within 90 seconds.
• Check that the antenna connector is tightly fastened.
• Check the number of satellites received, on the GPS Status
Display.
• Check if [POSITION&SOG/COG] in the [SELECT INPUT DE-
VICE] menu in the [INTERFACE] menu is set to [Internal GPS].
Bearing is wrong.
Check the magnetic variation setting at [COMPASS] in the [SYS-
TEM] menu.
The track of vessel
is not plotted.
Check that the track is turned on. Operate the [Track] soft control
to turn track on.
The speed indica-
tion is not zero after
the boat is stopped.
Try to decrease the [SPEED FILTER] in [FIX] in the [SYSTEM]
menu.
Содержание GP-1670
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