NEC Display Solutions of America, Inc.
PA653U/PA803U/PA853W/PA903X Installation Guide
Desktop and Ceiling Mount
Rev 1.5
www.necdisplay.com
PA653U/PA803U/PA853W/PA903X
Page 14 of 14
PC Control Codes
Function
Code Data
POWER ON
02H
00H
00H
00H
00H
02H
POWER OFF
02H
01H
00H
00H
00H
03H
INPUT SELECT HDMI1
02H
03H
00H
00H
02H
01H
A1H
A9H
INPUT SELECT HDMI2
02H
03H
00H
00H
02H
01H
A2H
AAH
INPUT SELECT DisplayPort
02H
03H
00H
00H
02H
01H
A6H
AEH
INPUT SELECT Computer
02H
03H
00H
00H
02H
01H
01H
09H
INPUT SELECT HDBaseT
02H
03H
00H
00H
02H
01H
BFH
C7H
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
ZOOM
03H
10H
00H
00H
05H
18H
00H
00H
03H 00H 33H
ASPECT RATIO (RGB)
4:3 WINDOW
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
16:10
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
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
PC Control Connector (D-Sub 9P)
NOTE 1 :
Pins 1, 4, 6, and 9 are used inside the projector.
NOTE 2:
For long cable runs it is recommended to set communication speed within the projector to 9600 bps.
NOTE 3:
Jumper “Request to Send” and “Clear to Send” together on both ends of the cable to simplify cable connection.
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
