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Connecting Pin Assignments (Continued)
Pin No.
HDMI Terminal
1
19
2
18
RS-232C Specifications and Command Settings
Computer control
A computer can be used to control the projector by connecting an RS-232C serial control cable
(cross type, sold separately) to the projector. (See page 27 for connection.)
Communication conditions
Set the serial port settings of the computer to match that of the table.
Signal format: Conforms to RS-232C standard.
Baud rate: * 9,600 bps/115,200 bps
Data length: 8 bits
* Set the projector's baud rate to the same rate as used by the computer.
Basic format
Commands from the computer are sent in the following order: command, parameter, and return code.
After the projector processes the command from the computer, it sends a response code to the computer.
Command format
C1 C2 C3 C4 P1 P2 P3 P4
Command 4-digit
Normal response
Response
O
code format
Info
• When controlling the projector using RS-232C commands from a computer, wait for at least 30
seconds after the power has been turned on, and then transmit the commands.
• When more than one code is being sent, send each command only after the response code for the
previous command from the projector is verified.
Commands
Example: When turning on the
projector, make the
following setting.
CONTROL CONTENTS
Power Off
P
Power On
P
INPUT 1 (Video1 : Component1)
INPUT 2 (Video2 : Component2)
INPUT 3 (Video3 : S-Video)
INPUT 4 (Video4 : Video)
INPUT 5 (RGB1 : RGB/Component)
INPUT 6 (RGB2 : RGB/Component)
58
Name
1.
TMDS Data2+
2.
TMDS Data2 Shield
3.
TMDS Data2-
4.
TMDS Data1+
5.
TMDS Data1 Shield
6.
TMDS Data1-
7.
TMDS Data0+
Parameter 4-digit
K
Return code (
P
O W R
COMMAND PARAMETER
RETURN
O
W
R
_
_
_
0
OK or ERR
O
W
R
_
_
_
1
OK or ERR
I
V
E
D
_
_
_
1
OK or ERR
I
V
E
D
_
_
_
2
OK or ERR
I
V
E
D
_
_
_
3
OK or ERR
I
V
E
D
_
_
_
4
OK or ERR
I
R
G
B
_
_
_
1
OK or ERR
I
R
G
B
_
_
_
2
OK or ERR
Pin No.
Name
8.
TMDS Data0 Shield
9.
TMDS Data0-
10.
TMDS Clock+
11.
TMDS Clock Shield
12.
TMDS Clock-
13.
CEC
Problem response
(communication error or incorrect command)
0DH
E
R
)
Computer
_
_
_
Note
• If an underbar (_) appears in the parameter
column, enter a space.
Pin No.
Name
14.
Reserved
15.
SCL
16.
SDA
17.
DDC/CEC Ground
18.
+5V Power
19.
Hot Plug Detect
Parity bit: None
Stop bit: 1 bit
Flow control: None
0DH
Return code (
R
Return code (
Projector
→
1
O
←
)
0DH
)
K
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