JRC JMA-5206 Instruction Manual page 172

Erasing the displayed trails partially.
• Erasing the part of the displayed trails by using the cursor as a eraser.
Note: Deleted trails can not be restored, so Erase them carefully.
Procedures 1
[1] Trails Erase Mode
[2] Trails Erase start
The depth input scre
[3] Eraser Size
Press [RADAR MENU] key twice.
Press [2] key.
Press [9] key.
Press [4] key.
Trail erase menu will appear.
Press [1] key.
Trail erase mode is enabled.
On the mode, cusor is fixed on the menu,
and the eraser (white box) is displayed on
the own ship positon.
Using the trackball, positon the eraser on
the Trail to be deleted.
Press [2] key.
Trail erase function starts.
Using the track ball, wipe out trails.
Press [2] key again to disable the function
temporally.
Press [3] key.
Eraser size lit is displayed.
Select the size of the eraser.
3─103
Trails Erase
1. Trails Erase Mode
2. Trails Erase Start
3. Eraser Size
0.
EXIT
OFF
3×3