![Furuno CHS-5LMARK-2-55 Operator'S Manual Download Page 7](http://html.mh-extra.com/html/furuno/chs-5lmark-2-55/chs-5lmark-2-55_operators-manual_2350618007.webp)
TABLE OF CONTENTS
v
3.5 Relocating School of Fish for Easy Observation ........................................................3-5
3.6 Event Mark, Own Ship Position Mark .........................................................................3-6
3.7 Collectively Deleting Marks ........................................................................................3-7
3.8 Function Keys (F1-F4)................................................................................................3-8
Programming for fishing ground or target fish ................................................3-8
4.1 Choosing the Range...................................................................................................4-1
4.2 Adjusting the Gain ......................................................................................................4-2
4.3 Picture Advance Speed ..............................................................................................4-3
4.4 Measuring Depth ........................................................................................................4-3
4.5 Suppressing Interference ...........................................................................................4-4
4.6 Suppressing Low Level Noise ....................................................................................4-4
4.7 Erasing Weak Echoes ................................................................................................4-5
4.8 Other Items on the Sounder Menu .............................................................................4-5
5.1 Marks and Data on the Normal Display......................................................................5-1
5.2 Marks and Data on the Echosounder and Audio Displays .........................................5-5
6.1 Bottom Echo...............................................................................................................6-1
6.2 School of Fish.............................................................................................................6-2
6.3 Sea Surface Reflections .............................................................................................6-3
6.4 Wake ..........................................................................................................................6-3
6.5 False Echo by Sidelobe..............................................................................................6-4
6.6 Noise and Interference ...............................................................................................6-4
7.1 MARKS Menu.............................................................................................................7-1
7.2 SYSTEM Menu...........................................................................................................7-3
7.3 Activation Code ..........................................................................................................7-5
8. MAINTENANCE, TROUBLESHOOTING ..............................................................8-1
8.1 General Maintenance .................................................................................................8-1
8.2 Cleaning the Equipment .............................................................................................8-1
8.3 Hull Unit Maintenance ................................................................................................8-2
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
Summary of Contents for CHS-5LMARK-2-55
Page 8: ...TABLE OF CONTENTS vi APPENDIX 1 MENU TREE AP 1 SPECIFICATIONS SP 1 INDEX IN 1 ...
Page 12: ...SYSTEM CONFIGURATION x This page is intentionally left blank ...
Page 30: ...1 OPERATIONAL OVERVIEW 1 18 This page is intentionally left blank ...
Page 38: ...2 FINE TUNING THE SONAR PICTURE 2 8 This page is intentionally left blank ...
Page 54: ...4 ECHOSOUNDER MODE 4 6 This page is intentionally left blank ...
Page 70: ...7 MARKS AND SYSTEM MENUS 7 6 This page is intentionally left blank ...
Page 82: ...8 MAINTENANCE TROUBLESHOOTING 8 12 This page is intentionally left blank ...