Samsung Msys 830 ユーザーズマニュアル

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Press Enter when “MANAGEMENT” appears on the lower 
line of the display.

Press  

 or 

 until “M. CODE : xxxxx” is displayed. 

Select one between “1.DEL” and “2.CHANGE”. 

If you press 1, the master code is deleted. 

If you press 2, the LCD prompts you to enter new master 
code.

Enter new master code, and press Enter. 

The LCD prompts you to enter the code again. Enter the 
code again. 

Press Enter, and the master code is changed.

To return to Standby mode, press Stop/Clear.