3)Control sequence

(1)The command from a computer to the LCD monitor will be sent in 600ms.

(2)The LCD monitor will send a return command 600ms* 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)

Sending commands

Status code from

Meaning

from the PC

LCD monitor

 

 

 

 

30 30 21 0D

 

Command for

’0’ ’0’ ’!’ ’ ’

 

POWER ON

 

 

 

 

30 30 21 0D

Command received

 

’0’ ’0’ ’!’ ’ ’

(Command echoed back)

 

 

 

4)Operation commands

The 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

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

 

 

 

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. * S-VIDEO is SEPARATE only

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ASCII

 

HEX

 

 

 

 

 

Function

Data (Receive)

Function

 

Data (Receive)

POWER

 

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

 

Input

 

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 49

 

76 33

 

Picture mode

 

HIGHBRIGHT

vM

p1

76 4D

 

70 31

 

 

STANDARD

 

 

vM

p2

76 4D

 

70 32

 

 

 

 

 

 

 

Temperature

 

Around

resolution

tcx1

(ex.) +25.0

74 63 78 31

 

2B 20 32 35

 

0.5˚C

 

 

2E 30

of Internal

 

AV board

 

 

 

 

 

 

resolution

tc1

(ex.) +25

74 63 31

 

2B 20 32 35

monitor

 

 

 

 

 

1˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Around

resolution

tcx2

(ex.) +30.5

74 63 78 32

 

2B 20 33 30 2E 35

 

 

0.5˚C

 

 

 

 

 

 

Power

 

 

 

 

 

 

 

 

 

resolution

 

 

 

74 63 32

 

2B 20 33 31

 

 

PCB

tc2

(ex.) +31

 

 

 

1˚C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

English-30

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Mitsumi electronic LDT37Iv manual English-30, Power on