Furuno FS-1562 Manual page 246

EEROM clear
When select to EEROM, press the [ENT] key;
After about 15 second the power is automatically cut off.
Turn the power on again manually. Muse be system settings.
(Refer to section "2. System settings")
Item
RAM 1
RAM 2
EEROM
Clears work area only in the S-RAMs.
Clears all contents of the S-RAMs
(incl. received messages and ship's position data.)
Clears all contents of the S-RAM and EEROM.
(Settings of combined equipment, etc. [SETUP] [1] and [7]
F1-4
Contents of S-RAM and EEROM
Purpose
DMC-5