Sony ICD-P520 Operating Instructions Manual page 7

Preventing Accidental Operation
— HOLD function
Slide the HOLD switch to "ON". "HOLD" will
flash three times, indicating that all the
functions of the buttons are locked.
When the HOLD function is activated during
stop, all the display will be turned off after
"HOLD" flashes.
HOLD
To cancel the HOLD function
Slide the HOLD switch to "OFF" .

Note
When the HOLD function is activated during
recording, cancel the HOLD function first to
stop recording.
Tip

Even if the HOLD function is activated, you can
stop the alarm playback. To stop the alarm or
playback, press STOP.
Rear
USB connector
Battery compartment
Hook for handstrap
(not supplied)

GB