3.4.1
Entering a fish mark .......................................................................................3-4
3.4.2
3.6.1
Event mark .....................................................................................................3-6
3.6.2
3.6.3
3.8.1
3.8.2
3.8.3
3.8.4
4.
ECHOSOUNDER MODE .......................................................................................4-1
4.1 Choosing the Range...................................................................................................4-1
4.2 Adjusting the Gain ......................................................................................................4-2
4.4 Measuring Depth ........................................................................................................4-3
4.7 Erasing Weak Echoes ................................................................................................4-5
5.
MARKS AND DATA ..............................................................................................5-1
6.
6.1 Bottom Echo ...............................................................................................................6-1
6.2 School of Fish.............................................................................................................6-2
6.4 Wake ..........................................................................................................................6-3
7.
7.1 MARKS Menu.............................................................................................................7-1
7.2 SYSTEM Menu...........................................................................................................7-3
7.3 Activation Code ..........................................................................................................7-5
8.
8.1 General Maintenance .................................................................................................8-1
8.3 Hull Unit Maintenance ................................................................................................8-2
8.3.1
8.3.2
8.4 Fuse Replacement .....................................................................................................8-4
8.5 Fan Replacement .......................................................................................................8-4
8.6 Troubleshooting..........................................................................................................8-5
8.7 Error Messages ..........................................................................................................8-6
8.8 Diagnostic Tests .........................................................................................................8-7
8.8.1
8.8.2
TABLE OF CONTENTS
v