Mach M20.06, User Manual

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System Security 23
S
YSTEM
S
ECURITY
6
Any changes made to an audio system have the potential to be damaging,
even if only accidentally made. For this reason several different security
systems are built in to the M20.06 to protect the speakers. Each of the
security levels locks different groups of variables away from accidental or
malicious adjustment.
P R O G R A M L O C K
This is a flag that is available for each stored program. A program can be
locked when it is stored - the user is prompted when Store is pressed for the
second time. Locking a program in this way is purely to protect the user
against accidentally overwriting a stored file. The lock status can be
changed by anyone unless the program is locked (see “Lock mode”). A
program locked in this way is indicated by a key symbol.
L O C K M O D E
The Lock Mode in the Utility menu can be turned on at any time.
When Lock Mode is set to ON , the user can move around the screens but
no variables can be changed except for the LCD screen contrast and, of
course, the Lock Mode.
Locking the M20.06 in this way is only to protect the user against other
users changing the system setup accidentally or against unauthorized
people intentionally changing the system. This status can be changed by
anyone who knows how to operate the M20.06.