NEC VT440 PC Control Codes, Cable Connection, Communication Protocol, PC Control Connector DIN-8P

PC Control Codes

Function	Code Data
POWER ON	02H	00H	00H	00H	00H	02H
POWER OFF	02H	01H	00H	00H	00H	03H
INPUT SELECT RGB	02H	03H	00H	00H	02H	01H	01H	09H
INPUT SELECT VIDEO	02H	03H	00H	00H	02H	01H	06H	0EH
INPUT SELECT S-VIDEO	02H	03H	00H	00H	02H	01H	0BH	13H
PICTURE MUTE ON	02H	10H	00H	00H	00H	12H
PICTURE MUTE OFF	02H	11H	00H	00H	00H	13H
SOUND MUTE ON	02H	12H	00H	00H	00H	14H
SOUND MUTE OFF	02H	13H	00H	00H	00H	15H
ON SCREEN MUTE ON	02H	14H	00H	00H	00H	16H
ON SCREEN MUTE OFF	02H	15H	00H	00H	00H	17H

Cable Connection

Communication Protocol
Baud rate:	38400 bps
Data length:	8 bits
Parity:	No parity
Stop bit:	One bit
X on/off:	None
Communications	Full duplex
procedure:
PC Control Connector (DIN-8P)		To RxD of PC



	8	7	6
5		4	3
		2	1

 To GND of PC To TxD of PC 

NOTE: Contact your local dealer for a full list of the PC Control	NOTE: Pins 2, 3, 5, 6 and 8 are used inside the projector.
Codes if needed.

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