Optoma Technology EP739 用户手册
3
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)
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
*2: Not support