Eagle FISHMARK 640C - Visit Our Website

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Visit our web site:

www.eaglesonar.com

Printed in USA 121205 LEI-Eagle



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Table of Contents3
Read Me First7
Capabilities and Specifications: Fishmark ® 640C8
Seafinder ® 640C DF8
How Sonar Works10
How to Use this Manual: Typographical Conventions11
- Arrow Keys11
- Keyboard11
- Menu Commands11
- Instructions = Menu Sequences11
Section 2: Installation & Accessories13
Preparations13
Transducer Installation13
- Recommended Tools and Supplies14
- Selecting a Transducer Location15
- How Low Should You Go16
- Shoot-Thru-Hull Vs. Transom Mounting17
- Transom Transducer Assembly and Mounting18
- Trolling Motor Bracket Installation (Single-Frequency Only)25
- Transducer Orientation and Fish Arches26
- Shoot-Thru-Hull Preparation27
- Testing Determines Best Location28
- Shoot-Thru-Hull Installation30
Speed/Temperature Sensors32
Optional Speed Sensor Installation33
Power Connections35
- Mounting the Unit: Bracket, In-Dash or Portable37
- Bracket Installation38
- In-Dash Installation40
- Portable Installation40
Basic Sonar Operation43
Keyboard43
Power/Lights on and off44
Main Menu45
Basic Sonar Quick Reference51
Sonar Operations52
- Fish Symbols Vs. Full Sonar Chart56
- Other Free Training Aids56
Section 4: Sonar Options & Other Features59
ASP (Advanced Signal Processing)59
- To Change the ASP Level60
Alarms60
- Depth Alarms61
- Zone Alarm62
- Fish Alarm63
Backlight and Contrast Level64
Calibrate Speed65
Chart Speed66
Colorline67
Depth Cursor68
Depth Range - Automatic69
Depth Range - Manual70
Fastrack71
Fish I.D. (Fish Symbols & Depths)71
- To Turn the Fish I.D. Feature on73
Fishtrack73
- To Turn on Fishtrack73
Frequency (Change Transducer Frequency) (Seafinder Only)74
- To Change the Frequency Setting to 50 Khz75
- To Change the Frequency Setting to 200 Khz75
Hyperscroll75
Noise Rejection75
Overlay Data75
Ping Speed & Hyperscroll78
- To Change Ping Speed79
- To Adjust Sensitivity79
- To Turn off Hyperscroll80
Pop-Up Help80
Reset Options81
Reset Water Distance82
Set Keel Offset82
Sensitivity & Auto Sensitivity84
- Automatic Sensitivity84
- To Turn Auto Sensitivity Back on85
Set Language86
Software Version Information86
Sonar Chart Mode86
- To Change the Chart Mode Color Scheme87
Sonar Page & Sonar Chart Display Options87
- Full Sonar Chart87
- Split Zoom Sonar Chart88
- Digital Data/Chart89
Sonar Simulator91
Stop Chart92
Surface Clarity93
- To Adjust the Surface Clarity Level93
Transparency94
- To Adjust Menu Transparency Level95
Units of Measure95
Zoom & Zoom Bar96
Zoom Pan97
Section 5: Troubleshooting99
- Unit Won't Turn on99
- Unit Operates Only in Demo Mode99
- Unit Freezes, Locks Up, or Operates Erratically99
- Weak Bottom Echo, Digital Readings Erratic, or no Fish Signals100
- No Fish Arches When the Fish I.D. Feature Is off101
- Noise101
Section 6: Supplemental Material103
- How to Obtain Service106
- Accessory Ordering Information for All Countries107
- Shipping Information107
- Visit Our Website108

Eagle FISHMARK 640C - Visit Our Website

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