User manual

ManualsBrandsMitsubishi ManualsPrint & ScanDLP HC7900DW

DLP™ Projector

MODEL

HC7900DW

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

RS-232C cable

D-SUB 9-pin

SERIAL

D-SUB 9-pin

To RS-232C

terminal

Important:

• Connect the computer with the projector on a one-to-one basis.

Boot up the computer ﬁrst, and then plug the power cord of the projector.

• Make sure that your computer and projector are turned off before connection.

•

(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

1.1 Pin assignment of SERIAL terminal (D-SUB 9-pin)

Pin Description

1 234 5

678 9

1 NC

2 RXD

3 TXD

4 NC

5 GND

6 NC

7 RTS

8 CTS

9 NC

1.2 Communications format

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.

Summary of content (8 pages)

PAGE 1
DLP™ Projector MODEL HC7900DW Controlling the projector using a personal computer This projector can be controlled by connecting a personal computer with RS-232C terminal.
PAGE 2
. Control command configuration The command consists of the address code, function code, data code, ACK/NAK, and end code. The length of the command varies among the functions. Address code ‘30h’ ‘30h’ 00 ASCII Character [Address code] [Function code] [Data code] [ACK/NAK] [End code] Function code Function Function Data code Data Data ACK/NAK ‘3Ah’ ‘4Eh’ :N End code ‘0Dh’ Fixed to 00. (‘30h’ ‘30h’ in the ASCII code) Code unique to each control operation.
PAGE 3
[RS-232C control flowchart] START Sending out command No NAK returned No response for 1 second or longer Awaiting response from projector NAK returned Command is sent successfully. Command is executed successfully. Checking execution of command (sending out check command) Command is sent successfully. Command execution fails. Command sending fails. Check the following. Check the following. • Check that the function code is • Check that the command begins correct. with “00”.
PAGE 4
. Command list 4.1 Operation commands The operation commands are used for the basic operation setting of this projector. They may not be executed while the signals are changed. The operation commands have no data codes. (When the commands for input select are sent while the splash screen is being displayed, the splash screen is only canceled.
PAGE 5
Use the following commands to obtain other information.
PAGE 6
4.4 Menu setting commands (Not executable in stand-by mode. Possible only to read during muting.) The menu setting commands are used for the menu setting of this projector. If the personal computer sends the command without attaching the data code, the projector attaches to the received command its current setting value as the data code and send it back to the PC.
PAGE 7
ITEM F.R.C. LEVEL BrilliantColor TM NOISE REDUCTION CTI INPUT LEVEL Character FRCL WEH NR CTI IPL Function ASCII 46h 52h 43h 4Ch 57h 45h 48h 4Eh 52h 43h 54h 49h 49h 50h 4Ch STU CMG CMGG* 53h 54h 55h 43h 4Dh 47h 43h 4Dh 47h 47h 1-5 0 (OFF), 1 (ON) 0 (OFF), 1 (ON) 00 - 05 +0(AUTO), +1(ENHANCED), +2(NORMAL), +3(SUPERWHITE) 0 (AUTO), 1 (OFF), 2 (3.75%), 3 (7.
PAGE 8
How to set the value Use the character or ASCII code as shown below to set the value. Character ASCII + 0 ‘2Bh’ ‘2Dh’ ‘30h’ 1 ‘31h’ 2 ‘32h’ 3 ‘33h’ 4 ‘34h’ 5 ‘35h’ 6 ‘36h’ 7 ‘37h’ 8 ‘38h’ 9 ‘39h’ [Example 1] When setting the 3D to ON. (Values enclosed in quotation marks are ASCII codes.): Command sent from the PC, etc.