174  FieldFox User’s Guide  
How to set FieldFox Volume Control 
  Press System 7 
  Then Volume 
  Then use the ▲|▼ arrows, the rotary knob, or numeric keypad to enter a value 
between 0 (lowest volume) and 100 (highest volume). 
  Press Volume again and select Mute to quickly turn OFF the speaker volume. 
Press Volume again to set volume ON to the previous volume control. 
Display Settings 
You can adjust the FieldFox for optimum viewing in a wide range of lighting  
conditions.   
Display settings remain through a FieldFox Preset. To cause the display 
brightness, color settings, and trace width to remain through a FieldFox 
shutdown, save the display settings as Preferences. Learn how on page 177. 
NOTE  Clean the transflective screen with gentle and minimal wiping using Isopropyl 
alcohol applied to a lint-free cloth.  
Display Brightness 
Change the brightness of the background. 
How to set Display Colors  
  Press System. 
  Then Display. 
  Then Brightness. 
  Use the ▲|▼ arrows, the rotary knob, or numeric keypad to enter a value 
between 0 and 100%. 
Display Colors 
Change Display Colors to alter the viewing scheme. 
How to set Display Colors 
  Press System. 
  Then Display. 
  Then Display Colors. 
  Then choose one of the following: