Runco Crystal CR-32HDi, Operating Manual, Page: 61 / 70

Runco CR-26HD/CR-32HDi Owner’s Operating Manual 49
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6.1
RS-232 Connection
and Port Configuration To interface the Crystal Series LCD Display with a home theater automation/control
system or a PC running terminal emulation software, connect it to your control system or
PC as shown in Figure 3-8.
Configure the RS-232 controller or PC serial port as follows: no parity, 8 data bits, 1 stop
bit and no flow control. Set the baud rate to match that of the Crystal Series LCD Display
RS-232 port; the default baud rate is 115200.
6.2
Serial Command
Syntax Table 6-1 lists the RS-232 command set. All commands are in ASCII format. A carriage
return is not required after a command.
When you send a valid command, the Crystal Series LCD Display executes it and
acknowledges it with a right-bracket character (
]
) followed by the four-digit numeric code
you sent; for example,
]0002
. When you send an invalid command, the Crystal Series
LCD Display ignores it and returns
-N/A
instead of the four-digit code.
6. S erial Communication s
Table 6-1. S erial Command s
Command De s cription
[ S3A 0###
Set audio volume to ### (=000-100)
Example: [S3A0075 sets volume to 75
[ +3A
Audio volume up
[ -3A
Audio volume down
[ S4A 000#
Main input selection
0=TV
1=Input1
2=Input2
3=Input3
5=DVI
6=RGB
Example: [S4A0006 selects RGB
[ S4E 000#
Aspect ratio selection
0=Standard (4x3)
1=VirtualWide
2=Letterbox
3=Anamorphic
Example: [S4E0002 selects Letterbox
[ S4F 0101
Select Composite Video for Input1
0102
Select S-Video for Input1
0201
Select Composite Video for Input2
0202
Select S-Video for Input2