Eagle Electronics FISHMARK 640C - Manual (Page 86)

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NOTE:
To return to the original factory setting for Auto Sensitivity, see the
entry in this section on Reset Options. If sensitivity is in manual
mode, the Reset Options command will switch back to Auto mode.
Tip:
For quicker sensitivity adjustments, try leaving the Sensitivity
Control Bar on the screen as the chart scrolls. You can see the
changes on the screen as you press the up or down arrows.
Set Language
This unit's menus are available in 10 languages: English, French, Ger-
man, Spanish, Italian, Danish, Swedish, Russian, Dutch and Finnish.
To select a different language:
1. Press MENU | MENU |
↓ to
S
ET
L
ANGUAGE
| ENT .
2. Use
↓ or ↑ to select a different language and press
ENT . All menus
now appear in the language you selected.
Software Version Information
From time to time, Lowrance updates the operating system software in
some of its products. These software upgrades are usually offered to
customers as free downloads from our web site, www.lowrance.com.
The upgrades make the unit perform better or introduce a new feature
or function. You can find out what software version is running in your
sonar unit by using the Software Information command.
1. Press MENU | MENU |
↓
to S OFTWARE I NFO
| ENT .
2. Read the information displayed on the screen.
3.
To return to the last page displayed, press EXIT|EXIT.
Sonar Chart Mode
The default color scheme for the sonar chart is white background, but
we offer other variations to suit your viewing preferences. You can se-
lect the chart to be displayed in grayscale, reverse grayscale, blue back-
ground, Nightview, IceView, or bottom color tracking.