JRC JMA-5912-6 Instruction Manual page 170

[IV] Clearing the saved navigation data (Erase User Map)
Procedures 1
2
3
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5
6
Insert a flash memory card into the card slot.
Flash memory card (option) is necessary.
For the insertion and removal of the card, see HOW TO INSERT AND REMOVE A
CARD in the appendix.
Open the File Operations menu by performing the following menu
operation.
Plot
→ 1. Mark Setting
→ 3. File Operations
Press the [1] key to select a card slot.
Slot1 and Slot2 of the Select Card Slot items are switched.
Press the [6] key.
The Erase screen will appear.
The list of navigation data saved in the card will be displayed.
Press numeric keys corresponding to the number for the file to be
erased.
Confirmation Window will appear.
Press the [1] key.
The selected navigation data is erased and the name of the file is deleted from the list.
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