Mitsubishi X500, X500U user Manual
LCD Projector
X500U
Control 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
• Menu setting
Connection
USB
REMOTE
MAIN
OI
INPUT SELECT
DIGITAL
ANALOG
AC IN
AUDIO 1 INCOMPUTER 1 IN
AUDIO 2 INCOMPUTER 2 IN
AUDIO OUTCOMPUTER OUT
RS-232C
VIDEO 1 IN VIDEO 2 IN
S-VIDEO
VIDEO
L
AUDIO
R
to RS-232C
terminal
to Com1
Comport
Mini DIN 8P
RS-232C cable
D-SUB 9P
Important:
• Make sure that your computer and projector are turned off before connection.
• Turn on the projector after the computer is started up.
(If you do not follow this order, the Comport may not function.)
• Adapters may be necessary depending on the PC connected to this projector. Contact your dealer for details.
1) Interface
PROTOCOL RS-232C
BAUD RATE 9600 [bps]
DATA LENGTH 8 [bits]
PARITY BIT NONE
STOP BIT 1 [bit]
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.
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3) Control sequence
(1) Send the command from a personal computer to the projector. (The commands must be sent at least
400ms apart.)
(2) The projector will send a return command 400ms* after it has received 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 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) Volume commands
The volume commands execute the volume setting of this projector with the value.
ITEM ASCII HEX VALUE
VOLUME VL 56h 4Ch 00 - 31
How to set the grade
Use ASCII letters code to set the grade for setting data. Please refer to the table below for HEX code.
ASCII '0' '1' '2' '3' '4' '5' '6' '7' '8' '9'
HEX 30h 31h 32h 33h 34h 35h 36h 37h 38h 39h
[Example] Set the volume to 15 (Standard value) (' 'is for ASCII code)
Sending commands Status code from Meaning
from the PC etc. projector
30 30 56 4C 31 35 0D Command for setting the volume
'0' '0' 'V' 'L' '1' '5' '
'
30 30 56 4C 31 35 0D Command received
'0' '0' 'V' 'L' '1' '5' ' ' (Command echo back)
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