RS-232 Terminal Specifications Communication configuration To control the LP 740 from your computer, connect the RS-232 cable and set your computer's serial port settings to match this communication configuration: Setting Bits per second Data bits Parity Stop bits Start bit Value 192000 8 None 1 1 Command format All commands consist of 3 alpha characters followed by a request, all enclosed in parentheses. An example: (AAA####) where ( AAA #### ) starts the command denotes the command denotes the value to be written (leading zeros not necessary) ends the command NOTE: To assure the projector can process a command, wait 3 seconds before entering the next command. A p p e n d i x Supported commands Function Power Volume Mute Track Sync Bright Resize Source Command PWR LMP MTE TRC SYC BRT RES SRC Meaning 1=ON, 0=OFF 1=Volume Up, 0=Volume Down 1=Mute On, 0=Mute Off 1=Phase Up, 0=Phase Down 1=Sync Up, 0=Sync Down 1=Bright Up, 0=Bright Down 1=Expansion On, 0=Expansion Off 0=Computer 1=Video 2=S-video 1=Menu On, 0=Menu Off 1=Zoom +, 0=Zoom 1=Pointer On, 0=Pointer Off 1=Mask On, 0=Mask Off 0=Up, 1=Down 2=Right, 3=Left Menu Zoom Point Mask Cursor MNU ZOM PNT MSK CSR ...