User's Manual

Appendix
69
8 APPENDIX
8.1 Maintenance
Periodically wipe down the casing and display screen with a clean damp cloth.
To remove heavier marks add a small quantity of mild detergent to some
water, dampen cloth and wring out thoroughly before wiping unit.
WARNING
Never use cleaning solutions containing spirit or alcohol
as these can damage the unit.
8.2 Troubleshooting
These simple checks should be carried out before seeking technical
assistance and may save time and expense.
General Symptom Possible Cause Remedy
Unit will not switch on Faulty connector to
power
Fuse has blown
Check power
connection
Replace fuse and check
power supply
No picture on display Unit not powered up
Light level set too low
Press PWR/ key
Increase light level.
(See section 3.10 and
5.3.1)
No mapping detail Coastline detail not
active
Activate coastline detail
(see section 5.2.1)
No GPS Position data Antenna or cable
problem
Check antenna cable
and connections
No HDG info SimNet cable problem Check SimNet power/
connector
Not logging No SD card
Wrong type of SD card
Install SD card (see
section 2.8)
Install correct type SD
card (see section 2.8)
No AIS transmission MMSI not entered
Transmit disabled
Enter MMSI number
Enable Transmit (see
section 5.6.7)