Section 19    Maintenance & Inspection  19-28 
 
4  Operate the keys, buttons and dials in the operation unit. 
If the performance of the operation unit is normal, the colors of the keys, buttons and dials are 
changed. 
5  Click on the [Key Test Stop] button after the operation check. 
Returns to the [Selftest] dialog box. 
 
 
19.4.4  Confirming the alert sound [Sound Test] 
Confirm the alert sound. 
1  Click on the [Menu] button on the left Tool Bar. 
The menu is displayed. 
2  Click on the [Maintenance] - [Selftest] - [Sound Test] button on the menu. 
3  Click on the [Sound Test Start] button. 
A sound test starts. All the available beep sound volumes can be tested by increasing the level 
from 0.