English-38
Using the LCD with RS-232C - continued
3) Control sequence
1) e command from a computer to the LCD monitor will take 400ms.
2) e LCD monitor will send a return command 400ms* aer it has received
an encode. If the command is not received correctly,
the LCD monitor will not send the return command.
3) e personal computer checks the command and conrms if the
command which has been sent has been executed or not.
4) is LCD monitor sends various codes other than the return code. When
sending a control sequence via RS-232C, other codes from personal
computers will be ignored.
*e sending time of the return command may be delayed depending on the
monitor’s current activity (changing of the input signal, etc.).
[Example] Turn the power ON. (
' ' is for ASCII code)
Sending commands
from the PC etc.
Status code from
LCD monitor
Meaning
30 30 21 0D
'0' '0' '!' '
'
Command for
POWER ON
30 30 21 0D
'0' '0' '!' ' '
Command received
(Command echo back)
4) Operation commands
Operation commands execute the basic operation setting of this LCD monitor.
It may not operate when changing the signal:
Operation ASCII HEX
POWER ON ! 21h
POWER OFF " 22h
DVI _r1 5Fh 72h 31h
VGA _r2 5Fh 72h 32h
RGB/HV _r3 5Fh 72h 33h
HDMI _h1 5Fh 68h 31h
VIDEO
_v1 5Fh 76h 31h
DVD/HD
_v2 5Fh 76h 32h
S-VIDEO
_v3 5Fh 76h 33h
TV
_t2 5Fh 74h 32h
POWER OFF command should not be used less than 1 minute aer the power is
turned on.
POWER ON command should not be used less than 1 minute aer the power is
turned o.
S-VIDEO is enabled by having an S-VIDEO cable connected with the "S-VIDEO"
signal present and selecting "PRIORITY MODE".
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