Sound Volume Setting
8
Activate the lock;
a
Input 0 and #;
b
1
2
3
4
5
6
7
8
9
0
#
1
2
3
4
5
6
7
8
9
0
#
0
#
+
Input the master user
for authorization;
c
1
2
3
4
5
6
7
8
9
0
#
Input 4 for system setting;
d
1
2
3
4
5
6
7
8
9
0
#
4
Input 2 for sound volume setting;
e
1
2
3
4
5
6
7
8
9
0
#
Use number 1 to turn down the
volume and use number 3 to turn
up the volume, and press # to confirm.
f
2
1
3
#
( )
( )
^
^
11
***
Master
