Extron electronic TPX 88 21 - Select video and audio, 22 - Select an input, Operation, cont’d

Operation, cont’d

A tie can also be viewed by selecting a tied output. To demonstrate this, note the number of an output button that is lit the same color as the input button (amber for video and audio, green for video, or red for audio), and then press and release the output button for an untied (unlit or background illumination) output. Observe that all of the untied outputs light. Then press the output button noted previously and observe that the selected output button and the tied input button (input 5) light.

3. To select both video and audio for viewing, if necessary, press and release the I/O button until the LEDs light (figure 3-21). Observe the indications shown in figure 3-20.

I/O

VIDEO

AUDIO

Press the button to cycle through the selections.

The video LED lights green when video is selected. The audio LED lights red when audio is selected.

Figure 3-21 — Select video and audio

4. Press and release the input 5 button (figure 3-22). The input 5 button lights amber.

Press and release the input 5 button.

The button lights amber to indicate that the video and audio ties will be shown.

I

N P U T

O U T P U T

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8

I

N P U T

O U T P U T

Green Amber Green Amber

The output buttons for outputs that are not tied to input 5 are either unlit or background illuminated.

The output buttons for outputs that are tied to input 5 light the appropriate color:

Amber for audio and video ties (audio follow)

Green for video ties (audio breakaway)

Red for audio ties (audio breakaway)

Figure 3-22 — Select an input

3-14 TPX 88 Matrix Switchers • Operation