Roland LVS-800 Manuale Utente

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Switching Between A Bus and B Bus
You can use Preview to check the video for inset-screen display first, then display it using the [AUTO] button.
1.
Choose the background channel.
Choose the channel of the video to display as the background with PST.
fig.select-Ach.eps
2.
Display the background.
Press the [AUTO] button to display the background video.
fig.select-Bch.eps
3.
Check the picture of the inset screen.
Choose the channel of the video to display in the inset screen with PST. The selected picture is output to the preview 
monitor connected to the A/B MIX PVW connector.
fig.SUB-PIC-select.eps
Composition in the PGM-PST Mode