Mitsubishi HC3800 Control Manual


DLP Projector
HC3800

Controlling 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
To RS-232C
terminal
D-SUB 9-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 Com port may not function.)
• Adapters may be necessary depending on the PC connected to this projector. Contact your dealer for details.

1) Interface

PROTOCOL
BAUD RATE
DATA LENGTH
PARITY BIT
STOP BIT
FLOW CONTROL
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
HEX 30h 30h
ASCII
[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,
RS-232C cable
3
6
Mini-DIN 8-pin
RS-232C
9600 [bps]
8 [bits]
NONE
1 [bit]
NONE
Function code
Function
'0' '0' Function
' ') fixed.
SERIAL
1 2
4 5
7 8
Data code
Data
Data
1
End code
0Dh