TView Pro AV
User's Manual Rev 2.01
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3
TView Pro AV controls and adjustments
There are several parameters on the TView Pro AV that can be controlled through by the TView Pro AV's control
interfaces. TView Pro AV models have three methods of control: front panel control, RS-232/422 and IR remote control.
All methods are interchangeable and simultaneously active (i. e. a front panel button push can be followed by an IR
remote control command).
Not all controllable items are accessible by the IR remote mouse. This provision is deliberately intended to prevent the
user of an IR remote mouse from accidentally changing the video standard from NTSC to PAL, etc., at a critical moment
in a presentation.
Additional adjustments to functions that are likely to accessed infrequently - or are intended to be adjusted by service
personnel only - are available in the form of potentiometers, variable capacitors and jumpers on the TView Pro AV board
itself. Access to these internal adjustments requires the removal of the TView Pro AV's cover.
3.1 TView Pro AV Interface Controllable Functions
The following parameters are accessible using the TView Pro AV's control interfaces. Each of the controls has one of
three possible types of parameters associated with it, Toggle (the function is either on or off), Multiple Choice (there are
several, mutually exclusive options) or Range (the parameter varies over a range of values for a particular function).
Section 4 details the use of each of the Control interfaces.
3.1.1 Horizontal/Vertical Position (Range)
This control enables the user to position the converted Computer Graphics with respect to the output television.
The actual functioning of this control is dependent on the state of the Zoom function. If Zoom is off, H/V Position
enables minor changes in position of the full screen image. If Zoom is on, H/V position functions as a pan and
scroll control, positioning the input window for zooming.
3.1.2 Horizontal/Vertical Size (Range)
This control enables the user to size the converted Computer Graphics with respect to the output television. The
actual functioning of this control is dependent on the state of the Zoom function. If Zoom is off, H/V Size enables
minor changes in size of the full screen image. If Zoom is on, the H/V Size Control is inactive. To properly size
the PC output to the television screen follow these steps
1.
Position the underscanned image to the top, left corner of the television screen
2.
Toggle the Pro AV control panel to H,V Sizing
3.
Use the IR remote control pad or arrow keys to size the screen both horizonally and vertically
3.1.3 Zoom (Toggle)
This control applies a 2X Zoom to a portion of the input Computer Graphics. The position of the window is
determined by the H/V Position control.
