H O W T O P R O G R A M B Y R - Optoma EP774 Service Manual

Projection Display Serial Interface
6-1 RS232 Setting
Baud rate:
Parity check: None
Data bit:
Stop bit:
Flow Control
Minimum delay for next command: 1ms
6-2 Control Command Structure
The command is structured by the Header code, command code, data code and end code.
Most of the commands are structured except some for the compatibility issue with other
projectors.
Header code
HEX 7Eh
ASCII '~'
6-3 Control Sequence
The projector may send a return code after it received a command. If the command isn't
received correctly, the projector will not send the return code
6-4 Operation Command
The operation commands execute the basic operation setting of this projector.
Operation
Power On
Power Off
Auto Image
Input Select RGB
Input Select RGB2
Input Select DVI
Input Select Video
Input Select S-Video
Input Select Component
Input Select Wireless
Company Confidential
6. How To Program By RS232
9600
8
1
None
Command code Data code
Command
Command
ASCII
※ ~ P N CR ※
~ P F CR
~ A I CR
~ S R CR
~ S G CR
~ S D CR
~ S V CR
~ S S CR
~ S Y CR
~ S W CR
Optoma_______________________
End code
Data 0Dh
Data
CR
HEX
7Eh 50h 4Eh 0Dh
7Eh 50h 46h 0Dh
7Eh 41h 49h 0Dh
7Eh 53h 52h 0Dh
7Eh 53h 47h 0Dh
7Eh 53h 44h 0Dh
7Eh 53h 56h 0Dh
7Eh 53h 53h 0Dh
7Eh 53h 59h 0Dh
7Eh 53h 57h 0Dh
57
Rev. 01
Delta____________
2007/06/13