MITSUBISHI ELECTRIC DLP HC900 User Manual

Controling the projector using a personal computer, 11) interface, 2) control command diagram

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1) Interface

Controling the projector using a personal computer

This projector can be controlled by connecting a personal computer with RS-232C terminal.

PC-controllable functions :
• Turning the power ON or OFF
• Changing input signals
• Inputting commands by pressing the buttons on the control panel and remote control
• Menu setting

Connection

COMPONENT VIDEO IN

SERIAL

to RS-232C
terminal

RS-232C cable

D-SUB 9-pin

8-pin

Important:
• Make sure that your computer and projector are turned off before connection.
• Boot up the computer first, and then plug the power cord of the projector.

(If you do not follow this instruction, the Comport may not function.)

• Adapters may be necessary depending on the PC connected to this projector. Contact your dealer for details.

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 consists of the address code, function code, data code, and end code. The length of the command
varies among the functions.

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.

DLP

TM

Projector

HC900 / HC900E

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