Mitsubishi Electronics HL650U manual Password lock commands, 10Reading command diagram

9) Password lock commands

The password lock commands control the password lock. The password lock enabling or disabling command is sent with a 4 to 8-digit password comprised of any figures 1 to 4 added to the end of the data code. When the password lock is enabled or disabled successfully, the projector sends a return command comprising the data code, password, and “1” at the end. When enabling or disabling the password lock fails, it sends a return command with “0” at the end. There is no reconfirmation of the password. The password input command is for enabling projection of image when password lock has been set to DISPLAY INPUT. The password input command is sent with a 4 to 8-digit password comprised of any figures 1 to 4 at the end.

ITEM	ASCII			HEX	VALUE
Password lock enabling/	PSLOCK	50h	53h	4Ch 4Fh 43h 4Bh	0**** (Disabling), 1**** (DISPLAY INPUT),
disabling					2**** (MENU ACCESS), 3**** (SPLASH ID SCREEN)
Password input	PASS	50h	41h	53h 53h	****

**** is a 4 to 8-digit password comprised of any figures 1 to 4.

[Example] When enabling the password lock of DISPLAY INPUT (in the case that the password is 123412):

Sending commands		Status code	Description
from the PC, etc.		from the projector
30 30 50 53 4C 4F 43 4B 31 31 32 33 34 31 32 0D			Command for enabling the
‘0’ ‘0’ ‘P’ ‘S’ ‘L’ ‘O’ ‘C’ ‘K’ ‘1’ ‘1’ ‘2’ ‘3’ ‘4’ ‘1’ ‘2’ ‘	’		password lock of DISPLAY INPUT
		30 30 50 53 4C 4F 43 4B 31 31 32 33 34 31 32 31 0D	Response informing that the
		‘0’ ‘0’ ‘P’ ‘S’ ‘L’ ‘O’ ‘C’ ‘K’ ‘1’ ‘1’ ‘2’ ‘3’ ‘4’ ‘1’ ‘2’ ‘1’ ‘ ’	projector succeeded in enabling the
			password lock of DISPLAY INPUT

10)Reading command diagram

The projectors operating status, such as POWER-ON/OFF and the currently selected input terminal, etc. can be monitored.

		ASCII					HEX
	Function		Data (Receive)		Function			Data (Receive)
POWER ON	vP		1	76h	50h			31h
POWER OFF	vP		0	76h	50h			30h
INPUT COMPUTER 1	vI		r1	76h	49h			72h	31h
INPUT COMPUTER 2	vI		r2	76h	49h			72h	32h
INPUT DVI	vI		d1	76h	49h			64h	31h
INPUT VIDEO	vI		v1	76h	49h			76h	31h
INPUT S-VIDEO	vI		v2	76h	49h			76h	32h
POWER ON/OFF INPOSSIBLE	vPK		0	76h	50h	4Bh		30h
POWER ON/OFF POSSIBLE	vPK		1	76h	50h	4Bh		31h
NO SIGNAL SUPPLIED	vSM		0	76h	53h	4Dh		30h
SIGNAL SUPPLIED	vSM		1	76h	53h	4Dh		31h

Use the following commands to obtain the values of the items in the INFORMATION menu.

ITEM	ASCII			HEX					VALUE
LAMP TIME (LOW)	vLE	76h	4Ch 45h					hhhhmm
RESOLUTION	vRESO	76h	52h	45h	53h	4Fh		HHHHxVVVV
VERTICAL FREQUENCY	vVFREQ	76h	56h	46h	52h	45h	51h	****.**
HORIZONTAL FREQUENCY	vHFREQ	76h	48h	46h	52h	45h	51h	****.**
SYNC. TYPE	vSYNCT	76h	53h	59h	4Eh 43h 54h			0	(NO SIGNAL), 3 (3wire), 4 (4wire),
								5	(5wire), 6 (SCART)

“hhhh” and “mm” represent hours and minutes respectively.

“HHHH” and “VVVV” represent the horizontal and vertical resolutions respectively.

The PC sends the command without attaching the data code to it. On the other hand, the projector attaches to the received command its current operating status as the data code and send it back to the PC.

[Example]	When checking the currently selected input terminal (when the INPUT VIDEO is being selected):
Sending commands		Status code	Description
from the PC, etc.		from the projector
30 30 76 49 0D			Command for checking the input
‘0’ ‘0’ ‘v’ ‘l’ ‘	’		terminal
		30 30 76 49 76 31 0D	Check result (VIDEO)
		‘0’ ‘0’ ‘v’ ‘l’ ‘v’ ‘1’ ‘ ’

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