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© 3M 1999
3M
™
Multimedia Projector MP8780
TECHNICAL
A-11
A.8 Serial Inferface Command Codes (continued)
Function
Code
Meaning
Power On/Off
Write Codes
D00W00
Power On
D00W01
Power Off
Read Codes
Returns:
D00R
00 - Standby
01 - Power on but no lamp
02 - Power on and lamp
03 - Power off but fan running
Source Selection
Write Codes
D02W01
RGB 1
D02W02
RGB 2
D02W03
RGB 3
D02W11
Video 1
D02W12
Video 2
D02W13
Video 3
D03W00
Shows what input is selected on-screen
Read Codes
Returns:
D02R
01 – RGB 1
02 – RGB 2
03 – RGB 3
11 – Video 1
12 – Video 2
13 – Video 3
Volume Control
Write Codes
Sets volume level to a value between 00 and 14 hex.
D04W00 to
This corresponds to 20 possible settings.
D04W14
Read Codes
Returns:
D04R
00 to 14 hex
Focus Control
Write Codes
D05W00
300ms Clockwise
D05W01
300ms Counterclockwis
D05W10
Continuous Clockwise
D05W11
Continuous Counterclockwise
D05W20
Turn off motor
Zoom
Write Codes
D06W00
300ms Clockwise
D06W01
300ms Counterclockwise
D06W10
Continuous Clockwise
D06W11
Continuous Counterclockwise
D06W20
Turn off motor
Mute
Write Codes
D07W00
Mute off
D07W01
Mute on
Read Codes
Returns:
D07R
00 - mute is off
01 - mute is on
Blank
Write Codes
D08W00
Blank is off - image is shown
D08W01
Blank is on - black screen is shown
Read Codes
Returns:
D08R
00 - off
01 - on