Mach M20.06 Manuel d'utilisateur télécharger pdf (Page 23)

System Security

YSTEM

ECURITY

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.

PROGRAM LOCK

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.

LOCK MODE

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.

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Mach M20.06 Manuel d'utilisateur Page 23