Input Panel
Control Codes
Function
Code Data
POWER
ON
02H 00H 00H
00H
00H
02H
POWER
OFF
02H
01H
00H
00H
00H
03H
INPUT
SELECT
COMPUTER
1 02H
03H
00H
00H
02H
01H
01H
09H
INPUT
SELECT
COMPUTER
2 02H
03H
00H
00H
02H
01H
02H
0AH
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
COMPONENT 02H
03H
00H
00H
02H
01H
12H
1AH
INPUT
SELECT
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
ASPECT
RATIO
(4:3
Screen)
4:3
03H 10H 00H 00H 05H 18H 00H 00H 00H 00H 30H
Letterbox
03H 10H 00H 00H 05H 18H 00H 00H 01H 00H 31H
Widescreen 03H 10H 00H 00H 05H 18H 00H 00H 02H 00H 32H
Crop
03H
10H
00H 00H 05H 18H 00H 00H 03H 00H 33H
ASPECT RATIO (16:9 Screen)
4:3 Window
03H 10H 00H 00H 05H 18H 00H 00H 00H 00H 30H
Letterbox
03H 10H 00H 00H 05H 18H 00H 00H 01H 00H 31H
Widescreen 03H 10H 00H 00H 05H 18H 00H 00H 02H 00H 32H
4:3 Fill
03H
10H 00H 00H 05H 18H 00H 00H 04H 00H 34H
AUTO ADJUST
02H
0FH 00H 00H 02H 05H 00H 18H
Note: Contact your NEC rep for codes not listed.
Cable Connection
Communication
Protocol:
PC
Control
Connector
(D-Sub
9p)
Baud Rate:
38400 bps
1
2
3
4
5
6
7
8
9
To GND of PC
To RxD of PC
To TxD of PC
To CTS of PC
To RTS of PC
Data Length:
8 bits
Parity:
No
Parity
Stop Bit:
One bit
X
on/off:
None
Communications: Full duplex
NOTE1: It is recommended to set the projector to “Idle Mode” in the Setup/Standby Mode menu for best Power ON response.
NOTE2: Pins 1, 4, 6, and 9 are used inside the projector.
NOTE3: Jumper “Request to send” and “Clear to Send” together on both ends of the cable to simplify cable connection.
NOTE4: For long cable runs it is recommended to set communication speed to 9600 bps in the Setup menu.
www.necvisualsystems.com
VT770
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