
| Command | Parameter | Value Stored? | Description | 
| 
 | (min/max) | 
 | 
 | 
| 
 | 
 | 
 | 
 | 
| POWER | 0/1 | NA | Turns DHD On and Off | 
| ON | NA | NA | Turns DHD Controller on | 
| OFF | NA | NA | Turns DHD Controller off | 
| COMPOSITE | NA | YES | Selects the Composite video input | 
| SVIDEO1 | NA | YES | Selects the  | 
| SVIDEO2 | NA | YES | Selects the  | 
| COMPONENT | NA | YES | Selects the Component input | 
| HD1 | NA | YES | Selects the RGB HD 1 input | 
| HD2 | NA | YES | Selects the RGB HD 2 input | 
| DVI1 | NA | YES | Selects the DVI 1 input | 
| DVI2 | NA | YES | Selects the DVI 2 input | 
| HD1Pass | NA | YES | Selects the HD 1 Pass Thru input | 
| HD2Pass | NA | YES | Selects the HD 2 Pass Thru input | 
| ANAMORPHIC | NA | YES | Selects the anamorphic aspect ratio | 
| STANDARD | NA | YES | Selects the standard (4:3) aspect ratio | 
| LETTERBOX | NA | YES | Selects the letterbox aspect ratio | 
| VIRTUALWIDE | NA | YES | Selects the VirtualWide aspect ratio | 
| CINEMA | NA | YES | Selects 2.35 aspect ratio | 
| RGBNN | NA | YES | Outputs color space RGB w/negative, negative sync | 
| RGBPP | NA | YES | Outputs color space RGB w/positive, positive sync | 
| RGBS | NA | YES | Outputs color space RGB w/embedded sync on green | 
| YUV | NA | YES | HD YUV output color space | 
| IHPOS | YES | Sets a value for input horizontal position offset | |
| 
 | 
 | 
 | (for current input and resolution) | 
| IVPOS | YES | Sets a value for input vertical position offset | |
| 
 | 
 | 
 | (for current input and resolution) | 
| IWIDTH | YES | Sets the value for input width adjustment | |
| 
 | 
 | 
 | (for current input and resolution) | 
| IHEIGHT | YES | Sets the value for input height adjustment | |
| 
 | 
 | 
 | (for current input and resolution) | 
| OVERSCAN | 0/10 | YES | Sets the overscan value in % | 
| 
 | 
 | 
 | (for current input and resolution) | 
| OHPOS | YES | Sets the value for output width adjustment | |
| OVPOS | YES | Sets the value for output height adjustment | |
| OWIDTH | YES | Sets the value for output width adjustment | |
| OHEIGHT | YES | Sets the value for output height adjustment | |
| BRIGHTNESS | YES | Sets a value for brightness for current input | |
| CONTRAST | YES | Sets a value for contrast | |
| COLOR | YES | Sets a value for color | |
| TINT | YES | Sets a value for tint | |
| SHARPNESS | YES | Sets a value for sharpness | |
| NIGHT | NA | YES | Selects the ISF Night preset | 
| DAY | NA | YES | Selects the ISF Day preset | 
| CUSTOM1 | NA | YES | Sets the user custom/preset | 
| CUSTOM2 | NA | YES | Sets the user custom/preset | 
| TRIGGER | YES | Sets the triggers for the current aspect ratio | |
| BKGND | YES | Sets the background color for letterbox, black, grey, white | |
| POWER? | NA | NA | Returns ON or OFF | 
| DATE? | NA | NA | Returns FW build date | 
| SWVER? | NA | NA | Returns FW version | 
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