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To further enhance the viewing experience of the audience – more precise commands
are added to minimize the disruption during a source change.
Furthermore, to avoid confusion with old RS232 commands and possible software
maintenance problem the silent OSD are implemented using new RS232 commands.
The side benefit of this implementation is user choose silent OSD or non-silent OSD
just by invoking different RS232 commands
IR 030 source lock on
IR 031 source lock off
IR 032n source select n=1 is DVI-D
n=2 is DVI-RGB (*1)
n=3 is DVI-YPbPr (*1)
n=4 is D-sub RGB
n=5 is D-sub YPbPr (include 480i, 480p, 720p, 1080i, 576i, 576p)
n=6 is D-sub SCART
n=7 is RCA YPbPr (include 480i, 480p, 720p 1080i, 576i,
576p)(*2)
n=8 is composite
n=9 is S-video
IR 033n aspect ratio n=1 is 4:3
n=2 is 16:9
n=3 is window = 4:3 inside 16:9
n=4 is letterbox
IR 034nn brightness nn= 00-99, 99 is the brightest
IR 035nn contrast nn=00-99, 99 is highest contrast
IR 036nn volume nn=00-99, 99 is loudest
IR 037nn zoom nn=0-31, 31 is maximum zoom
IR 038n color temperature n=1 is low
n=2 is medium
n=3 is high
New read commands (not related to silent mode)
ID ? returns ID x x= any unique ID such as serial no.
Hour? returns “HR nnnn\r” nnnn= lamp hours in 4 digits
*1: select to DVI
*2: Not support