NEC Display Solutions of America, Inc.
VT800 Installation Guide
Ceiling Mounted and Desktop
Rev 1.3
www.necdisplay.com
VT800
Page 6 of 6
PC 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 HDMI
02H 03H 00H 00H 02H 01H 1AH 22H
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
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 SCREEEN 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
ZOOM
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
03H 00H 33H
ASPECT RATIO (RGB)
4:3
03H
10H
00H
00H
05H
18H
00H
00H
00H 00H 30H
16:9
03H
10H
00H
00H
05H
18H
00H
00H
02H 00H 32H
5:4
03H
10H
00H
00H
05H
18H
00H
00H
0BH 00H 3BH
16:9
03H
10H
00H
00H
05H
18H
00H
00H
0CH 00H 3CH
15:9
03H
10H
00H
00H
05H
18H
00H
00H
0DH 00H 3DH
AUTO ADJUST
02H 0FH 00H 00H 02H 05H 00H 18H
Note:
Contact your NEC rep for codes not listed.
Cable Connection
Communication Protocol:
Baud Rate:
38400 bps (for cable lengths longer than 20’, it is recommended changing to 9600 bps in setup menu)
Data
Length:
8
bits
Parity:
No
Parity
Stop
Bit:
One
Bit
X
on/off: None
Communications: Full duplex
NOTE 1 : Pins 2, 3, 5, and 6 are used inside the projector.
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
NOTE 2: For long cable runs it is recommended to set communication speed within the projector to 9600 bps.
