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3. Updating System Software (Please refer to Section 3.4 for more details.)
4.6 Key Lock Operation
The Key lock operation protects the unit against unauthorized use by disabling the entire front panel
controls. Simultaneously press these two Left and Right buttons (as shown below ) for at least
3 seconds to lock the unit; to release the Key Lock, simultaneously press these two buttons again.
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A-rec T-recDISK
Power Display SetupSearch EnterMonitor Play Pause Stop
SD Card
Rec
MAIN MENU
RECORD
ALARM
CLOCK / TIMER
COMMUNICATION
DISK
SYSTEM
GOTO SYSTEM SETTING
SYSTEM
OPERATION LOG : ENTER
MENU BACKGND : 2
BUZZER : ON
PASSWORD : SET
SETUP PWD : OFF
DEFAULT : LOAD
SD SETUP : SAVE
VERSION : ENTER
MAIN PAGE
VIEW OPERATION LOG