FOCUS Enhancements TView Quad Scan Manual - Manual (Page 24)

TView QuadScan User's Manual 0092-5000-200
24
4 QuadScan Control Methods
QuadScan models can be controlled in one of 3 different ways: Front Panel, RS-232/422, or InfraRed Remote Control.
The following sections detail the use of each of these control mechanisms. In all cases, the state of a particular function of
the QuadScan is indicated on the QuadScan’s Front Panel LED readout. On power-up, the LED display indicates
“QUADSCAN”.
4.1 Front Panel Control
The QuadScan Front Panel gives the user access to all of the control parameters detailed in section 3.1. Figure 2 indicates
the placement of the buttons and LED display on the Front Panel of the QuadScan.
The controls are arranged such that the user can cycle through a circular list of controllable functions with the + or -
buttons. Using the + button advances the controlled item to the next item in the list. Using the - button reverses the
controlled item to the previous item in the list. Depending on the nature of the controlled item, the directional arrow
buttons function differently.
If the controlled item is a Toggle (i. e. Channel Termination, Zoom, etc.) with a position of either On or Off, then the
activation of any one of the arrow buttons will toggle the state of the controlled item.
If the controlled item is a Multiple Choice (i. e. Input Source, Output Resolution) with several mutually exclusive
positions, then the activation of the Up Arrow or Down Arrow buttons will Increment or Decrement the state of the
controlled item to the next state. When the last state is reached, the next state will be the first state.
If the controlled item is a Range (i. e. Input Horizontal and Vertical Size and Position, etc), then the arrow buttons
increase or decrease the value of these quantities. The increase or decrease is proportional to the length of time that the
button is pressed.
Figure 2: Position of Front Panel Controls
+
-
TView QuadScan