4.18 Event Mark ...............................................................................................................4-28
4.19 Net Course Mark ......................................................................................................4-30
4.20 Net Data ...................................................................................................................4-31
4.22.1 Bottom echoes .............................................................................................4-33
4.22.2 School of fish................................................................................................4-34
4.22.3 False echoes ................................................................................................4-35
5.
5.1 Numeric/Graphic Data Display ...................................................................................5-1
6.
6.1 User Menu ..................................................................................................................6-1
6.1.1
6.1.2
6.2.1
6.2.2
6.2.3
How to erase programs ..................................................................................6-4
6.2.4
6.3 USER PROG Control .................................................................................................6-5
6.3.1
6.3.2
6.3.3
7.
OTHERS MENU .....................................................................................................7-1
7.1 Erase Marks Menu .....................................................................................................7-1
7.2 Wheel Setting Menu ...................................................................................................7-2
7.3 Display Setting Menu..................................................................................................7-3
7.4 Alarm & Audio Menu...................................................................................................7-5
7.5 Register Menu ............................................................................................................7-6
7.6 Initial Setting Menu .....................................................................................................7-7
8.
8.4 How to Save Settings .................................................................................................8-4
8.5 How to Load Files.......................................................................................................8-5
8.5.1
8.5.2
8.6 How to Delete Files ....................................................................................................8-7
9.
9.2 Hull Unit Maintenance ................................................................................................9-2
9.3 How to Replace Fuses ...............................................................................................9-3
9.7 Troubleshooting..........................................................................................................9-5
TABLE OF CONTENTS
vii