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3) Control sequence
(1) A command is sent from the computer to the monitor. (Commands should be sent at intervals of at least 600 ms.)
(2) The monitor sends a return command within 600 ms* after receiving and encoding the command. If the monitor fails to
receive the command, it doesn’t send any return command.
(3) The computer checks the return command to see that the command it sent was executed or not.
(4) The monitor sends various codes other than the return code. While RS-232C control sequence is in progress, reject other
codes on the personal computer side.
*: Transmission of the return command may be delayed during signal switchover, etc.
Example: Turn the power ON (‘ ’ is for ASCII code)
Command from computer Command from monitor Detail of command
30 30 21 0D
‘0’ ‘0’ ‘!’ ‘
’
Command for POWER ON
30 30 21 0D
‘0’ ‘0’ ‘!’ ‘
’
Command received
(Command echoed back)
4) Operation commands
The operation commands confi gure the basic operation settings of this LCD monitor. The commands may not work during signal
switchover.
The operation commands have no data codes.
Operation ASCII HEX Operation ASCII HEX
POWER ON ! 21h INPUT DVD/HD _v2 5Fh 76h 32h
POWER OFF " 22h INPUT S-VIDEO _v3 5Fh 76h 33h
INPUT RGB 1 _r1 5Fh 72h 31h VOLUME UP r06 72h 30h 36h
INPUT RGB 2 _r2 5Fh 72h 32h VOLUME DOWN r07 72h 30h 37h
INPUT RGB 3 _r3 5Fh 72h 33h MUTE ra6 72h 61h 36h
INPUT RGB 4 _r4 5Fh 72h 34h AUTO SETUP r09 72h 30h 39h
INPUT VIDEO _v1 5Fh 76h 31h
• After sending the POWER ON or POWER OFF command, wait for at least 1 minute to send the next command.
• After sending any of the video input selection commands, wait for at least 10 seconds to send the next command.
5) Read command
The computer sends the command without datacode to the monitor.
After receiving this command, the monitor returns the command with datacode including the current status to the computer.
Example: When the computer asks the power status of the monitor, and the status of the 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 the monitor.
30 30 76 50 31 0D ‘0’‘0’‘v’‘P’‘1’[enter] Monitor is powered-on.
Structure of the Read-command
ASCII HEX
Function Data (Receive) Function Data (Receive)
POWER
ON vP 1 76 50 31
OFF (stand by) vP 0 76 50 30
Input
RGB-1 (HDMI) vI r1 76 49 72 31
RGB-2 (DVI-D) vI r2 76 49 72 32
RGB-3 (D-SUB) vI r3 76 49 72 33
RGB-4 (BNC) vI r4 76 49 72 34
Video vI v1 76 49 76 31
DVD/HD vI v2 76 49 76 32
S-VIDEO vI v3 76 49 76 33
Internal
temperature
Around the main
board
Resolution
1˚C
tc1 (ex.) +25 74 63 31 2B 20 32 35
Around the power
supply
Resolution
1˚C
tc2 (ex.) +31 74 63 32 2B 20 33 31
U-10 Remote control (continued)
Carry out as necessary
Downloaded From TV-Manual.com Manuals