DEVA Broadcast DB4004 Maintenance And Operation Instruction Manual page 30

Short pressing SB3 once will make the transition from Marker to Span control state and Soft
button labels will be changed accordingly.
The controls state of the page will be changed alternatively between Marker and Span on every
SB3 press.
Short pressing OK button in either Marker or Span control states will make a transition to
Parameter control state. The page will stay in that state until OK button is pressed again or a
timeout of 2 seconds is elapsed (whichever occurs first). Simplified state diagram of the control
states transitions is shown on figure below.
SB3 press
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2 sec timeout
Span control
state
OK press
OK press
Marker control
state
2 sec timeout
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Parameter
control
state