Macvision MA833A Operation Manual page 19

Set Keylock time
1). Interface for setting system.
3). Press Mode to enter interface.
5). To exit press Mode after change.
The keys will locked automatically, in the status without any operation and over the
system keylock time.
Press "Next" key and then press "Last" key to unlock
(Please refer to the screen display):
Set Language
Press Mode to enter interface, Dial to choose, press Mode to exit.
Set Power off
See "Backlight time", operations are the same, then:
Power-save mode shuts it down automatically if in the set time no key is
pressed and player is stopped;
"0" denotes that this function has been closed;
"Sleep mode" shuts it down automatically if in the set time no key is pressed
whether player is stopped or playing. Works once after being set.
2). Dial Next to select
"Keylock time".
Record Time
4). Dial Next/Last to
30
adjust time.
15
Push key ,
to unlock !
Keylock time
0