User manual

PS121 Presentation Switcher
8
PTN Electronics Limited www.PTN-electronics.com
4. Control
Part A: Remote operation
1) Audio volume adjustment zone:
“Mute”: mute the displaying audio signal.
“Audio Lock”: keep the last-selected audio display; it will not change with the new
switch operation.
“Line audio Button – and + ”: adjust the volume of line audio, with bar indicator on the
screen.
2) Video signal source/channel selection zone:
Video signal selection: press any button of the 4 to change to the corresponding
signal change and display, with signal indicating lag on the screen and the LED
indicator on the front panel.
VGA signal channel selection: 4 channels corresponding to 4 VGA inputs source.
Composite video signal channel selection: 4 channels corresponding to 4 composite
video inputs source.
DVI signal channel selection: 4 channels corresponding to 4 DVI signal inputs source.
2): Video signal source/channel selection
1): Audio adjustment zone