(RS-232C) Specifications and Command Settings 
PC control
A computer can be used to control the projector by connecting an
Communication conditions
Set the serial port settings of the computer to match that of the table.
Signal format: Conforms to
Baud rate: 9,600 bps
Data length: 8 bits
Parity bit: None
Stop bit: 1 bit
Flow control: None
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 | Return code (0DH) |
Command | Parameter |
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Response code format
Normal response
O | K |
| Return code (0DH) |
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Problem response (communication error or incorrect command)
E | R | R |
| Return code (0DH) |
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When more than one code is being sent, send each command only after the OK response code for the previous command from the projector is verified.
•When using the computer control function of the projector, the projector operating status cannot be read to the computer. Therefore, confirm the status by transmitting the display commands for each adjustment menu and checking the status with the
Commands
EXAMPLE 
•When “BRIGHT” of INPUT 1 (RGB 1) image adjustment is set to 10.
Appendix
Computer
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R | A |
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| 1 |
| 0 |
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| CONTROL CONTENTS |
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| COMMAND | PARAMETER |
| RETURN | |||||||||||
KEY | POWER ON |
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| P | O | W | R | _ | _ | _ | 1 | OK OR ERR | |||
POWER OFF |
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| P | O | W | R | _ | _ | _ | 0 | OK OR ERR | ||||
CONTROL |
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VOLUME (0 – 60) |
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| V | O | L | A | _ | _ | * | * | OK OR ERR | ||||||
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| MUTE ON |
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| M | U | T | E | _ | _ | _ | 1 | OK OR ERR | |||
REMOTE& | MUTE OFF |
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| M | U | T | E | _ | _ | _ | 0 | OK OR ERR | |||
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LENS ZOOM (30 – 30) |
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| L | N | Z | O | _ | * | * | * | OK OR ERR | |||||||||
| LENS FOCUS (30 – | 30) |
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| L | N | F | O | _ | * | * | * | OK OR ERR | ||||||
BUTTONS |
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KEYSTONE (127 – 127) |
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| K | E | Y | S | * | * | * | * | OK OR ERR | |||||||||
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| V | S | I | Z | _ | _ | * | * | OK OR ERR | ||||||
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| DIGITAL SHIFT (96 – 96) |
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| L | N | D | S | _ | * | * | * | OK OR ERR | ||||||||
Projector
O K
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| CONTROL CONTENTS | |
KEY | BLACK SCREEN ON | ||
BLACK SCREEN OFF | |||
CONTROL | INPUT 1 (RGB 1) | ||
| INPUT 2 | (RGB 2) | |
REMOTE | INPUT 3 | (RGB 3) | |
INPUT 5 | (VIDEO 2) | ||
| INPUT 4 | (VIDEO 1) | |
& | INPUT CHECK | ||
BUTTONS | |||
FREEZE ON | |||
| FREEZE OFF | ||
| AUTO SYNC START | ||
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COMMAND | PARAMETER | RETURN | ||||||
I | M | B | K | _ | _ | _ | 1 | OK OR ERR |
I | M | B | K | _ | _ | _ | 0 | OK OR ERR |
I | R | G | B | _ | _ | _ | 1 | OK OR ERR |
I | R | G | B | _ | _ | _ | 2 | OK OR ERR |
I | R | G | B | _ | _ | _ | 3 | OK OR ERR |
I | V | E | D | _ | _ | _ | 1 | OK OR ERR |
I | V | E | D | _ | _ | _ | 2 | OK OR ERR |
I | C | H | K | _ | _ | _ | 0 | OK OR ERR |
F | R | E | Z | _ | _ | _ | 1 | OK OR ERR |
F | R | E | Z | _ | _ | _ | 0 | OK OR ERR |
A | D | J | S | _ | _ | _ | 1 | OK OR ERR |
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