Sony SVO-1320P Mode D'emploi page 7

Locking the buttons on the VCR and remote
commander
You can lock the buttons on the VCR and remote commander. This is
convenient if you want to prevent accidental operations while
controlling this VCR with a wired control unit (not supplied). It is also
convenient when you use this VCR in a public place; this protects the
VCR from mishaps caused by other people touching it.
KEY INHIBIT
Locking the buttons on both the VCR and remote commander
Set the KEY INHIBIT switch on the VCR to ON.
"KEY INHIBIT" appears in the VCR's display window.
To resume normal operation
Set the KEY INHIBIT switch to OFF.
7 -EN
Getting Started