Mitsubishi Electronics HC5500 manual Control sequence, How to set the value

3)Control sequence

(1)Send the command from the personal computer to the projector.

(2)The projector will send a return command after it receives an end code. If the command is not received correctly, the projector will not send the return command.

(3)The personal computer checks the command and confirms if the sent command has been executed or not.

(4)This projector sends various codes other than the return code. When having a control sequence by RS-232C, reject other codes from the personal computer.

•During signal switching, the command may not take effect even when the projector sends the return command. After signal switching completes, wait for the mode indication to disappear before sending the next command.

•When sending commands successively, wait to receive the return command of the current command before sending a next command.

•Keep intervals of at least 400 ms between receipt of a return command and sending of a next command.

•Any commands will not be executed for 10 seconds after the power is turned on.

[Example]	When turning the power ON. (Figures and symbols enclosed in quotation marks are ASCII codes.):
	Sending commands		Status code	Description
	from the PC, etc.		from the projector
30 30 21 0D				Command for POWER ON
‘0’ ‘0’ ‘!’ ‘	’
		30 30 21 0D		Command receipt confirmation
		‘0’ ‘0’ ‘!’ ‘	’	(Command echo back)

4)Operation commands (Not executable in stand-by mode. When the commands for input select are sent while the splash screen is being displayed, the splash screen is only canceled.)

The operation commands are used for the basic operation setting of this projector. They may not be executed while the signals are changed. The operation commands have no data codes.

Operation	ASCII	HEX		Note
POWER ON	!	21h		This command is invalid for 1 minute after the power is turned off.
POWER OFF	"	22h		This command is invalid for 1 minute after the power is turned on.
INPUT COMPUTER	_r1	5Fh 72h 31h		This command will not be executed in Stand-by mode.
INPUT COMPONENT	_c1	5Fh 63h 31h		This command will not be executed in Stand-by mode.
INPUT HDMI1	_d1	5Fh 64h 31h		This command will not be executed in Stand-by mode.
INPUT HDMI2	_d2	5Fh 64h 32h		This command will not be executed in Stand-by mode.
INPUT VIDEO	_v1	5Fh 76h	31h	This command will not be executed in Stand-by mode.
INPUT S-VIDEO	_v2	5Fh 76h	32h	This command will not be executed in Stand-by mode.

[Example] When setting the input signal to COMPUTER. (Figures and symbols enclosed in quotation marks are ASCII codes.):

Sending commands	Status code	Description
from the PC, etc.	from the projector
30 30 5F 72 31 0D		Command for setting the input signal
‘0’ ‘0’ ‘_’ ‘r’ ‘1’ ‘ ’		to COMPUTER
	30 30 5F 72 31 0D	Command receipt confirmation
	‘0’ ‘0’ ‘_’ ‘r’ '1' ‘ ’	(Command echo back)

5)Keystone commands (Not executable in stand-by mode. Possible only to read during muting.)

The keystone commands are used for the keystone setting of this projector with the value. The value will vary depending on the installation conditions, etc.)

ITEM	ASCII	HEX	VALUE
KEYSTONE (vertical)	KS	4Bh 53h	±15

How to set the value

Use the ASCII or HEX code as shown below to set the value.

ASCII

‘+’

‘-’

‘0’

‘1’

‘2’

‘3’

‘4’

‘5’

‘6’

‘7’

‘8’

‘9’

HEX

2Bh

2Dh

30h

31h

32h

33h

34h

35h

36h

37h

38h

39h

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