ViewSonic CD4233 - Page 14

Commercial Display RS-232 Protocol
Revision 1.x
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May 28, 2007 14 / 16 Commercial Display RS-232 Protocol
Get Function
Length
Command
Command
Response Range
Comments
Code
(ASCII)
Code
(Hex)
(Three ASCII bytes)
Get-Contrast
a
61
000 ~ 100
Gets Contrast value
Get-Brightness
b
62
000 ~ 100
Gets Brightness
value
Get-Sharpness
c
63
000 ~ 100
Gets Sharpness value
Get-Color
d
64
000 ~ 100
Gets Color value
Get-Tint
e
65
000 ~ 100
Gets Tint value
Get-Volume
f
66
000 ~ 100
Gets Volume value
Get-Mute
g
67
000: OFF (unmuted)
Gets Mute ON/OFF
status
001: ON (muted)
Get-RCU
h
68
000: Disable
Gets RCU mode
status
001: Enable
002: Pass through
Get-Key Pad
i
69
000: Disable
Gets Buttons ON/OFF
status
001: Enable
Get-Input select
j
6A
000: VGA
Gets Input select
status
001: HDMI
002: DVI-D
003: AV
004: YPbPr
005: S-Video
Get-Power
status
l
6C
000: STBY
Gets the status of the
HDTV power.
001: ON
HDTV response:
000 = HDTV is in
standby
001 = HDTV is ON
Get-ACK
z
7A
0
This command is
used to test the
communication link.