Mitsubishi LVP-X300U user Manual
LCD
Projector
User Manual
X 300
MODEL LVP-X300U
APPENDIX
AP – 1
Control this projector by using a personal computer
This projector can be controlled by connecting a personal computer with RS-232C terminal.
Functions can be controlled by a personal computer:
• Turn the ON or OFF
• Changing input signals
• Button input by remote control or control panel
• Reading warning data
• Menu setting
Connection
Projector + IBM PC or IBM PC compatibles
to Com1
Comport
to RS-232C
terminal
RS-232C cable
D-SUB 9P D-SUB 9P
to modem port
or printer port
RS-232C adaptor
for Macintosh (option)
D-SUB 9P D-SUB 9PD-SUB 9PMini DIN 8P
to RS-232C
terminal
Note: If your PC (IBM or IBM compatible) is equipped only with a 25-pin serial port connector, a 25-pin
serial port adapter is required. Contact your dealer for details.
1) Interface
PROTOCOL RS-232C
BAUD RATE 9600 [bps]
DATA LENGTH 8 [bits]
PARITY BIT NONE
STOP BIT 1 [bits]
FLOW CONTROL NONE
This projector uses RXD, TXD and GND lines for RS-232C control.
For RS-232C cable,the reverse type cable should be used.
2) Control command diagram
The command is structured by the address code, function code, data code and end code. The length of the
command is different by each function.
Address code Function code Data code End code
HEX 30h 30h Function Data 0Dh
ASCII '0' '0' Function Data
[Address code] 30h 30h (In ASCII code, '0' '0') fixed.
[Function code] A code of each fixed control move.
[Data code] A code of each fixed control data (number) and not always indicated.
[End code] 0Dh (In ASCII code, ' ') fixed.
AP – 2
3) Control sequence
(1) The command from a personal computer to the projector will be sent in 400ms.
(2) The projector will send a return command 400ms* after it has received an encode. If the command isn’t
received correctly, the projector 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 projector sends various codes other than the return code. When having a control sequence by RS-
232C, reject other codes from personal computer side.
• * : The sending time of return command may delay depending on the condition (during changing the
input signal, etc.).
[Example] Turn the power ON (' 'is for ASCII code)
Sending commands Status code from Meaning
from the PC etc. projector
30 30 21 0D Command for POWER ON
'0' '0' '!' ' '
30 30 21 0D Command received
'0' '0' '!' ' ' (Command echo back)
4) Operation commands
The operation commands execute the basic operation setting of this projector. It may not operate when changing the signal.
Operation
POWER ON ! 21h
POWER OFF " 22h
INPUT COMPUTER 1 _r1 5Fh 72h 31h
INPUT COMPUTER 2 _r2 5Fh 72h 32h
INPUT VIDEO 1 _v1 5Fh 76h 31h
INPUT VIDEO 2 _v2 5Fh 76h 32h
ASCII HEX
• POWER OFF command will not work for 1 minute after the power is turned on.
• POWER ON command will not work for 1 minute after the power is turned off.
[Example] Set the input signal to COMPUTER 1 (' 'is for ASCII code)
Sending commands Status code from Meaning
from the PC etc. projector
30 30 5F 72 31 0D Command for setting the input
'0' '0' '_' 'r' '1' ' ' signal to COMPUTER 1
30 30 5F 72 31 0D Command received
'0' '0' '_' 'r' '1' ' ' (Command echo back)
5) Remote commands
Some remote control operations can be done by remote command codes.
Button's name on remote
+ VOLUME r06 72h 30h 36h
– VOLUME r07 72h 30h 37h
MUTE ra6 72h 61h 36h
EXPAND r02 72h 30h 32h
PinP r04 72h 30h 34h
{ r53 72h 35h 33h
} r2b 72h 32h 62h
$ r4f 72h 34h 66h
% r59 72h 35h 39h
MENU r54 72h 35h 34h
ENTER r10 72h 31h 30h
ZOOM/FOCUS r0f 72h 33h 66h
AUTO POSITION r09 72h 30h 39h
STILL ra4 72h 61h 34h
ASCII HEX
APPENDIX
AP – 3
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