TView Pro AV
User's Manual Rev 2.01
21
4.2 Remote Control
The hand held IR remote control enables the user to access many of the functions of the TView Pro AV. Since the IR unit
is intended to be used in presentation situations, certain functions of the TView Pro AV may only be accessed via the
Front Panel or via RS-232/422. This prevents the accidental use of some controls (i. e. switching from NTSC to PAL
inadvertently in a presentation; a presentation disaster!) and keeps the interface simple. The Remote Control interface is
indicated in Figure 3. The Remote Control is a line of sight device; the IR receiver is mounted inside the TView Pro AV
next to the LED displays. The Remote Control will only operated when it is within the line of sight of the LEDs of the
TView Pro AV. The maximum range is about 25 feet.
Several controls are available from the IR unit. Flicker Filter, UnderScan/Overscan, Freeze Frame, Auto Reset and
Horizontal and Vertical Size, Position and Zoom. Of these, the first three controls (Flicker Filter, Underscan and Freeze
Frame) are simple toggle switches that activate or de-activate the indicated function. Auto Reset performs a Reset to a
known state (see section 4.2.2 below). Horizontal/Vertical Size, Position and Zoom cycles the function of the Directional
button between Size, Position and Zoom Position. Depending on the state of the Size, Position and Zoom switch, the
Directional Control will influence either the size, position or zoomed position of the converter output. In all cases, the
currently operating function will be indicated on the LED display of the TView Pro AV.
4.2.1 Control Locking and Remote Control (not currently implemented)
The TView Pro AV has a Control Locking feature that freezes the operation of the Control (see section 4.1.1 above).
When this function is enabled, the IR Remote Control is completely inoperative. (The LED Display will indicate
"LOCKED" in this condition). The only way to restore control to the Remote Control Unit is to de-activate locking via
the Front Panel or RS-232/422 link (see section 4.1.1 above).
4.2.2 Auto Reset with the Remote Control
The Remote Control unit will return the TView Pro AV to a known state (as indicated in section 4.1.2 above). The
Auto Reset button on the Remote Control is the large button indicated in figure 4.
4.3 RS-232/422 Control
All of the functions detailed in section 3.1 are available from RS-232/422 control. Every TView Pro AV is operable in
both RS-232 and RS-422, but must be correctly set up for each standard. When configured for RS-422, up to 8 TView
Pro AVs may be connected in a single RS-422 wired system. The TView Pro AVs will react to controls that are delivered
to a unique address that is programmed into each TView Pro AV via the Front Panel control.
When configured for RS-232, only a single TView Pro AV may be attached to the RS-232 link. The default configuration
is RS-232.
