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3) Control sequence
(1) The command from a computer to the LCD monitor will be sent in 400ms.
(2) The LCD monitor will send a return command 400ms* after it has received and encoded. If the command isn’t
received correctly, the LCD monitor will not send the return command.
(3) The personal computer checks the command and confirms if the command, which has been sent, has been executed or not.
(4) This LCD monitor sends various codes other than return code. When having a control sequence by RS-232C, reject other
codes from personal computers side.
*: The sending time of return command may delay depending on the condition (during changing of the input signal, etc.).
Example: Turn the power ON ( ’ ’ is for ASCII code)
4) Operation commands
The operation commands execute the basic operation setting of this LCD monitor.
It may not operate when changing the signal:
• POWER OFF command should be operated over 1 minute after the power is turned on.
• POWER ON command should be operated over 1 minute after the power is turned off.
* This operation is enabled when “S-VIDEO MODE” is “SEPARATE”.
5) Read command
Host computer sends the command without Data-code to monitor.
After receiving this command, the monitor returns the command with Data-code of current status to host computer.
< ex. > When Host computer ask Power status of monitor, the status of monitor is powered-on.
Command from computer Command from Monitor Detail of command
30 30 76 50 0D 0''0'v''P'[enter] Ask about the power status of monitor.
30 30 76 50 31 0D '0''0''v''P''1'[enter] Monitor is powered-on.
Structure of the Read-command
Function Data (Receive) Function Data (Receive)
ON vP 1 76 50 31
OFF(stand by) vP 0 76 50 30
RGB-1(DVI-D) vI r1 76 49 72 31
RGB-2(D-SUB) vI r2 76 49 72 32
RGB-3(BNC) vI r3 76 49 72 33
VIDEO vI v1 76 49 76 31
DVD/HD vI v2 76 49 76 32
S-VIDEO vI v3 76 4D 76 33
HIBRIGHT vM p1 76 4D 70 31
STANDARD vM p2 76 4D 70 32
resolution 74 63 78 31 2B 20 32 35
0.5˚C 2E 30
resolution 74 63 31 2B 20 32 35
1˚C
resolution 74 63 78 31 2B 20 33 30 2E 35
0.5˚C
resolution 74 63 32 2B 20 33 31
1˚C
NOTE: For complete information please see file “External_Control_MDT4XXS.pdf” on the CD-ROM.
Sending commands
from the PC
Status code from
LCD monitor
Meaning
30 30 21 0D
’0’ ’0’ ’!’ ’
’
30 30 21 0D
’0’ ’0’ ’!’ ’
’
Command received
(Command echoed back)
Command for
POWER ON
Input
Picture mode
Temperature
of Internal
monitor
Around
Power
PCB
Around
Inverter
PCB
POWER
(ex.) +25.0
(ex.) +30.5
(ex.) +31
(ex.) +25
tcx1
tc1
tcx2
tc2
ASCII HEX
Operation ASCII HEX
POWER ON ! 21h
POWER OFF " 22h
INPUT RGB 1 _r1 5Fh 72h 31h
INPUT RGB 2 _r2 5Fh 72h 32h
INPUT RGB 3 _r3 5Fh 72h 33h
INPUT VIDEO _v1 5Fh 76h 31h
INPUT DVD/HD _v2 5Fh 76h 32h
INPUT S-VIDEO _v3 5Fh 76h 33h
Downloaded From TV-Manual.com Manuals