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Operator's instructions  
4. Controls 
 
 
Figure: Settings screen 
 
Keys 2 and 7  Contrast adjustment 
 
Key 2 decreases display contrast 
 
Key 7 increases display contrast 
 
 
Keys 3 and 8  Brightness adjustment 
 
Key 3 decreases display brightness 
 
Key 8 increases display brightness 
 
Key 4  Operator Parameters Screen 
 
Key 5  Manufacturer Parameters Screen (ACP) 
 
Key 9  Authorized Service Screen (CA)