Aurora Multimedia VR-1FF - Manual (Page 9)

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10.1 (Continued) RS-232 Protocol
General Info
!KEY_PWR Power On / Off
!KEY_F1 Function 1 key used for Format selection (pillar box, letter box, etc)
!KEY_F2 Function 2 key (future use)
!KEY_F3 Function 3 key audio follow mode (Main or PiP)
!KEY_TV TV Source Selection
!KEY_FM FM Source Selection
!PWRON Power On
!PWROFF Power Off
?PWR Query Power status responds with ~PWRON or ~PWROFF
!VOLxx Volume Level Set xx=00 to 64 Responds with ~VOL52 for volume level 52.
00 is Mute for this command. 52 is zero dB
?VOL Query Volume Level Responds with ~VOL10 for volume level 10.
?MCH Query Main Channel Responds with ~MCH002 for channel 2.
!MCHxxx Main Channel change !MCH025 for channel 25. xxx = 001 to 125
?MIN Main Input Query responds with ~MVID or ~MSVID or ~MTV or
~MRGB or ~MYPBPR
?VER Version Query responds with ~VER 1.00 if version 1.00 was present.
Unless otherwise noted all valid commands are echoed back if properly received.
When Main TV channel is changed via remote or contact closure, the RS232 is updated by sending a ~MCHxxx
response
When Volume is changed via remote or contact closure, the RS232 is updated by sending a ~VOLxx response
Invalid commands will reply with ~ERROR.