Furuno TS-331A - Manual (Page 47)

5. MENU DESCRIPTION
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5.6 Help Menu
The Help menu offers the following commands, which provide you assistance with this
application:
Help Topics Provides a list of help topics.
Help Contents Offers you a list of contents on which you can get help.
Use this command to display the opening screen of Help. From
the opening screen, you can jump to step-by-step instructions for
using TS-331A and various types of reference information.
About Use this command to display the copyright notice and version
number of your copy of TS-331A as well as contact information.