Eagle Electronics FISHMARK 640C - Manual (Page 5)

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To turn off HyperScroll..................................................................74
Pop-up Help........................................................................................74
Reset Options .....................................................................................75
Reset Water Distance ........................................................................76
Set Keel Offset ...................................................................................76
Sensitivity & Auto Sensitivity...........................................................78
Automatic Sensitivity ....................................................................78
To turn Auto Sensitivity back on ..................................................79
Set Language .....................................................................................80
Software Version Information...........................................................80
Sonar Chart Mode..............................................................................80
To change the chart mode color scheme .......................................81
Sonar Page & Sonar Chart Display Options ....................................81
Full Sonar Chart ............................................................................81
Split Zoom Sonar Chart .................................................................82
Digital Data/Chart .........................................................................83
Sonar Simulator.................................................................................85
Stop Chart ..........................................................................................86
Surface Clarity ...................................................................................87
To adjust the Surface Clarity level ...............................................87
Transparency .....................................................................................88
To adjust Menu Transparency level..............................................89
Units of Measure................................................................................89
Zoom & Zoom Bar ..............................................................................90
Zoom Pan............................................................................................91
Section 5: Troubleshooting ..........................................................92
Unit won't turn on..........................................................................93
Unit operates only in demo mode..................................................93
Unit freezes, locks up, or operates erratically ..............................93
Weak bottom echo, digital readings erratic, or no fish signals....94
No fish arches when the Fish I.D. feature is off: .........................95
Noise ...............................................................................................95
Section 6: Supplemental Material ..............................................97