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RS-232C Terminal Specifications
1. PC control
A personal computer can be used to control the projector by connecting the supplied computer control
cable to the PC CONTROL 1 terminal on the projector and an RS-232C cable (cross type) (not supplied) to
the computer, and then connecting the RS-232C cable to the computer control cable.
(RS-232C does not function when connected to PC CONTROL 2. See page 15 for connection.)
2. Communication conditions
Set the serial port settings of the computer to match that of the table below.
Signal format:
Baud rate:
Data length:
Parity bit:
Stop bit:
Flow control:
3. Basic format
Commands from the computer are sent in the following order: command, parameter, and return code. After
the unit processes the command from the computer, it sends a response code to the computer.
Command format
C1 C2 C3 C4 P1 P2 P3 P4
Response code format
Normal response
O
Problem response (communication error or incorrect command)
E
When more than one code is being sent, send each command only after the OK response code for the
previous command from the unit is verified.
Note:
• Using the computer control function of the unit, the liquid crystal projector conditions cannot be read to the computer. There-
fore, confirm the conditions by transmitting the display commands for each adjustment menu and checking the conditions
with the On-Screen Display. If the unit receives a command other than a menu display command, it will execute the command
without displaying the On-Screen Display.
4. Commands
Conforms to RS-232C standard.
9,600 bps
8 bits
NON
1 bit
None
Command 4-digits
Return code (0DH)
K
Return code (0DH)
R
R
COMMAND
CONTROL ITEM
C1
C2
C3
C4
P1
P
O
W
R
_
POWER SETTING
P
O
W
R
_
I
V
E
D
_
_
I
V
E
D
INPUT SWITCHING
I
R
G
B
_
I
R
G
B
_
I
C
H
K
_
INPUT CHECK
M
E
L
A
_
_
M
E
L
A
_
M
E
L
A
_
M
E
L
A
LANGUAGE
SELECTION
_
M
E
L
A
_
M
E
L
A
_
M
E
L
A
_
M
E
L
A
M
E
S
Y
_
_
M
E
S
Y
VIDEO
_
SYSTEM
M
E
S
Y
SELECTION
M
E
S
Y
_
_
M
E
S
Y
V
A
P
I
_
V
A
B
R
_
V
A
C
O
_
VIDEO 1
IMAGE
V
A
T
I
_
ADJUSTMENT
V
A
S
H
_
V
A
R
E
_
_
V
A
R
E
V
B
P
I
_
V
B
B
R
_
V
B
C
O
_
VIDEO 2
IMAGE
V
B
T
I
_
ADJUSTMENT
V
B
S
H
_
V
B
R
E
_
_
V
B
R
E
W
B
R
D
_
VIDEO
BACKGROUND
W
B
B
E
_
_
LEVEL
W
B
R
E
_
_
Return code (0DH)
Parameter 4-digits
PARAMETER
CONTROL CONTENTS
P2
P3
P4
_
_
0
POWER OFF
_
_
1
POWER ON
_
_
1
VIDEO 1
_
_
2
VIDEO 2
_
_
1
RGB 1
_
_
2
RGB 2
_
_
0
INPUT CHECK
_
_
1
ENGLISH
_
_
2
DEUTSCH
_
_
3
ESPANOL
_
_
4
NEDERLANDS
_
_
5
FRANCAIS
_
_
6
ITALIANO
_
_
7
SVENSKA
_
_
8
JAPANESE
_
_
1
AUTO
_
_
2
PAL
_
_
3
SECAM
_
_
4
NTSC 4.43
_
_
5
NTSC 3.58
*
*
*
PICTURE ( 30 –
30)
*
*
*
BRIGHT ( 30 –
30)
*
*
*
COLOR ( 30 –
30)
*
*
*
TINT ( 30 –
30)
_
_
*
SHARPNESS ( 30 –
30)
_
_
0
VIDEO 1 DISPLAY
_
_
1
RESET
*
*
*
PICTURE ( 30 –
30)
*
*
*
BRIGHT ( 30 –
30)
*
*
*
COLOR ( 30 –
30)
*
*
*
TINT ( 30 –
30)
_
_
*
SHARPNESS ( 30 –
30)
_
_
0
VIDEO 2 DISPLAY
_
_
1
RESET
*
*
*
RED ( 30 –
30)
*
*
*
BLUE ( 30 –
30)
_
_
1
RESET
Note:
• If a dash appears in the parameter
column enter a space. If an asterisk
appears enter a value in the range
indicated in brackets under CON-
TROL CONTENTS. See the examples
on the next page.
E-34
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