Hitachi 3000 - Manual (Page 16)

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Chapter 1
Overview
Chapter 1
Overview
Names & Functions of Device Parts
No. Name Functions
6 Send Key Used for receiving and making calls.
7 End key Used to end a call and to switch the power ON/OFF.
8 ClearKey Used as the "Erase" button for character input.
Used as the "Return" button for menu viewing.
9 Number pad Inputs numbers, letters, etc. (0-9, *, #) for dialing etc .Also used for menu
shortcuts.
10 Key lock Locks/unlocks the buttons.