Erasing Messages - Sony SPP-AQ25 Operating Instructions Manual

To rewind the tape
First stop the tape and then press REPEAT/REW Kd.
to
;
+
If there are messages which
have not been played back yet,
you will hear five short error
beeps and the tape does not
rewind.
The tape should be reset if
messages do not need to be
saved. This will speed up new
message playback.