Lenco DVP-939 Manual Del Usuario página 9

19. LOCK
Press the "LOCK" button on the remote control to lock the player/remote
control buttons (except the EJECT button, ON/OFF switch and the "LOCK"
button on the remote control).
Press the "LOCK" button again to unlock the buttons. When the player is
switched off, the keylock function will be switched off automatically.
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