E – 56
1
2
5
4
3
6
7
8
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
To TxD of PC
To GND of PC
NOTE:
Pins 2, 3, 5, 6 and 8 are used inside the projector.
PC Control Codes
LT157
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
INPUT SELECT PC CARD VIEWER
02H 03H 00H 00H 02H 01H 1FH 27H
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
LT158
Function
Code Data
POWER ON
02H 00H 00H 00H 00H 02H
POWER OFF
02H 01H 00H 00H 00H 03H
INPUT SELECT DVI (DIGITAL)
02H 03H 00H 00H 02H 01H 1AH 22H
INPUT SELECT DVI (ANALOG)
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
INPUT SELECT PC CARD VIEWER
02H 03H 00H 00H 02H 01H 1FH 27H
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
NOTE:
Contact your local dealer for a full list of the PC Control Codes if needed.