Erase guard functions to prevent accidental erasure.
1. Press and hold the MENU/FOLDER button down at least 2 seconds in
the stop mode.
2. Press the MENU/FOLDER button repeatedly to select "ERASE
3. Press the TIME/SET button. "OFF" blinks.
4. Press the + or – VOLUME button to select "ERASE GUARD ON". "
appears on the display.
5. Press the TIME/SET button to set it. "
If the ERASE button is pressed after setting Erase Guard, "GUARD" appears
briefly on the display.
" remains lit.