| Function | OSD ButtonsMenu path | IR RemoteP/N 5590001xx-3 | DDC/CIHDMI / DP / USB-C | RS-232CN8 serial | USB-CRS-232 over USB-C | EthernetRS-232 via AI-50 |
|---|---|---|---|---|---|---|
| Picture | ||||||
| Brightness (Backlight level) | ✓ Picture > Brightness |
✓ 1 | ✓ | ✓ 0xe0 |
✓ 0xe0 |
✓ 0xe0 |
| Black Level | ✓ Picture > Black level |
✓ 1 | — | ✓ 0x81 |
✓ 0x81 |
✓ 0x81 |
| Contrast | ✓ Picture > Contrast |
✓ 1 | ✓ | ✓ 0x82 |
✓ 0x82 |
✓ 0x82 |
| Sharpness | ✓ Picture > Sharpness |
✓ 1 | ✓ | ✓ 0x8a |
✓ 0x8a |
✓ 0x8a |
| Saturation | ✓ Color > Saturation |
✓ 1 | — | ✓ 0x83 |
✓ 0x83 |
✓ 0x83 |
| Hue | ✓ Color > Hue |
✓ 1 | — | ✓ 0x84 |
✓ 0x84 |
✓ 0x84 |
| Gamma | ✓ Color > Gamma |
✓ 1 | — | ✓ 0x9d |
✓ 0x9d |
✓ 0x9d |
| Aspect Ratio | ✓ Advanced > Aspect Ratio |
✓ 1 | — | ✓ 0x8c |
✓ 0x8c |
✓ 0x8c |
| Display Orientation (0° / 180°) | ✓ Display > Disp Rotate |
✓ 1 | — | ✓ 0x8e |
✓ 0x8e |
✓ 0x8e |
| Colour | ||||||
| Colour Temperature Select | ✓ Color > Temperature |
✓ 1 | ✓ | ✓ 0xb3 |
✓ 0xb3 |
✓ 0xb3 |
| User Colour — Red Level | ✓ Color > Temp > User > R |
✓ 1 | ✓ | ✓ 0xb4 |
✓ 0xb4 |
✓ 0xb4 |
| User Colour — Green Level | ✓ Color > Temp > User > G |
✓ 1 | ✓ | ✓ 0xb5 |
✓ 0xb5 |
✓ 0xb5 |
| User Colour — Blue Level | ✓ Color > Temp > User > B |
✓ 1 | ✓ | ✓ 0xb6 |
✓ 0xb6 |
✓ 0xb6 |
| Audio | ||||||
| Volume | ✓ Audio > Volume |
✓ 1 | ✓ | ✓ 0x80 |
✓ 0x80 |
✓ 0x80 |
| Mute On/Off | ✓ Audio > Mute |
✓ Mute button |
— | ✓ 0x80, "m" |
✓ 0x80, "m" |
✓ 0x80, "m" |
| Input | ||||||
| Input Source Select | ✓ Input > D0/D1/D2 |
✓ AV/TV button |
✓ 2 | ✓ 0x98 |
✓ 0x98 |
✓ 0x98 |
| Auto Source Seek | ✓ Advanced > Auto Source Seek |
✓ 1 | — | ✓ 0x99 |
✓ 0x99 |
✓ 0x99 |
| Power | ||||||
| Power On/Off (soft) | ✓ Hold Menu 3–4 sec |
✓ Power button |
✓ 4 | ✓ 0xc8 |
✓ 0xc8 |
✓ 0xc8 |
| Power Save On/Off | ✓ Advanced > Power Save |
✓ 1 | — | ✓ 0x9f |
✓ 0x9f |
✓ 0x9f |
| Default Power State | ✓ Advanced > Default Power |
✓ 1 | — | ✓ 0xee, 0x6B, 0x50 |
✓ 0xee, 0x6B, 0x50 |
✓ 0xee, 0x6B, 0x50 |
| Backlight | ||||||
| Backlight On/Off | — | — | — | ✓ 0xe1 |
✓ 0xe1 |
✓ 0xe1 |
| Backlight DA/PWM Mode | ✓ Factory > BL Setup > D/A / PWM |
✓ 1 | — | ✓ 0xe5 |
✓ 0xe5 |
✓ 0xe5 |
| Backlight PWM Frequency | ✓ Factory > BL Setup > Frequency |
✓ 1 | — | ✓ 0xe6 |
✓ 0xe6 |
✓ 0xe6 |
| Backlight Invert | ✓ Factory > BL Setup > Invert |
✓ 1 | — | ✓ 0xe7 |
✓ 0xe7 |
✓ 0xe7 |
| Minimum Backlight Level | ✓ Factory > BL Setup > Min. Level |
✓ 1 | — | ✓ 0xee, 0x5C |
✓ 0xee, 0x5C |
✓ 0xee, 0x5C |
| Light Sensor | ||||||
| Light Sensor On/Off | ✓ Factory > BL Setup > Light sensor |
✓ 1 | — | ✓ 0xee, 0x78, 0x30 |
✓ 0xee, 0x78, 0x30 |
✓ 0xee, 0x78, 0x30 |
| Light Sensor Level/Backlight Curve | — | — | — | ✓ 0xee, 0x78, 0x31–0x48 |
✓ 0xee, 0x78, 0x31–0x48 |
✓ 0xee, 0x78, 0x31–0x48 |
| Query Light Sensor Value | — | — | — | ✓ 0xee, 0x70, 0x50, 0x35, 0x33 |
✓ 0xee, 0x70, 0x50, 0x35, 0x33 |
✓ 0xee, 0x70, 0x50, 0x35, 0x33 |
| OSD | ||||||
| OSD Menu Rotate | ✓ Other > Rotate |
✓ 1 | — | ✓ 0x8f |
✓ 0x8f |
✓ 0x8f |
| OSD H Position | ✓ Other > OSD H Position |
✓ 1 | — | ✓ 0x90 |
✓ 0x90 |
✓ 0x90 |
| OSD V Position | ✓ Other > OSD V Position |
✓ 1 | — | ✓ 0x91 |
✓ 0x91 |
✓ 0x91 |
| OSD Transparency | ✓ Other > Transparency |
✓ 1 | — | ✓ 0x92 |
✓ 0x92 |
✓ 0x92 |
| OSD Menu Timeout | ✓ Other > Menu Time |
✓ 1 | — | ✓ 0x93 |
✓ 0x93 |
✓ 0x93 |
| OSD Status Enquiry | — | — | — | ✓ 0xbb |
✓ 0xbb |
✓ 0xbb |
| OSD Turn Off | ✓ Menu button (auto timeout) |
✓ OSD NEXT button |
— | ✓ 0xbd |
✓ 0xbd |
✓ 0xbd |
| OSD Switch Mount Lock | — | — | — | ✓ 0xee, 0x62 |
✓ 0xee, 0x62 |
✓ 0xee, 0x62 |
| Configuration | ||||||
| Hot Key 1 Assignment | ✓ Advanced > Hot Key 1 |
✓ 1 | — | ✓ 0xa0, "1" |
✓ 0xa0, "1" |
✓ 0xa0, "1" |
| Hot Key 2 Assignment | ✓ Advanced > Hot Key 2 |
✓ 1 | — | ✓ 0xa0, "2" |
✓ 0xa0, "2" |
✓ 0xa0, "2" |
| Panel Timing Setting | — | — | — | ✓ 0xee, 0x74 |
✓ 0xee, 0x74 |
✓ 0xee, 0x74 |
| User EDID | — | — | — | ✓ 0xee, 0x76 |
✓ 0xee, 0x76 |
✓ 0xee, 0x76 |
| EDID Reset | ✓ Factory > EDID Setup > Reset |
✓ 1 | — | ✓ 0xee, 0x76 + "R" |
✓ 0xee, 0x76 + "R" |
✓ 0xee, 0x76 + "R" |
| RS-232 Acknowledge On/Off | — | — | — | ✓ 0xc1 |
✓ 0xc1 |
✓ 0xc1 |
| Command Availability Check | — | — | — | ✓ 0xc4 |
✓ 0xc4 |
✓ 0xc4 |
| Queries & Status | ||||||
| Video Input Status | ✓ Information (read-only) |
— | — | ✓ 0xc9 |
✓ 0xc9 |
✓ 0xc9 |
| Video H Resolution | ✓ Information (read-only) |
— | — | ✓ 0xb7 |
✓ 0xb7 |
✓ 0xb7 |
| Video V Resolution | ✓ Information (read-only) |
— | — | ✓ 0xb8 |
✓ 0xb8 |
✓ 0xb8 |
| Video H Sync Frequency | — | — | — | ✓ 0xb9 |
✓ 0xb9 |
✓ 0xb9 |
| Video V Sync Frequency | — | — | — | ✓ 0xba |
✓ 0xba |
✓ 0xba |
| Board Temperature | — | — | — | ✓ 0xee, 0x70, 0x50, 0x3B, 0x34 |
✓ 0xee, 0x70, 0x50, 0x3B, 0x34 |
✓ 0xee, 0x70, 0x50, 0x3B, 0x34 |
| Runtime Counter | — | — | — | ✓ 0xa1 |
✓ 0xa1 |
✓ 0xa1 |
| BIOS Version | — | — | — | ✓ 0xcb, "0" |
✓ 0xcb, "0" |
✓ 0xcb, "0" |
| PCBA Number | — | — | — | ✓ 0xcb, "1" |
✓ 0xcb, "1" |
✓ 0xcb, "1" |
| Revision Number | — | — | — | ✓ 0xcb, "3" |
✓ 0xcb, "3" |
✓ 0xcb, "3" |
| Copyright | — | — | — | ✓ 0xf8 |
✓ 0xf8 |
✓ 0xf8 |
| Reset & Test | ||||||
| Reset (OSD parameters) | ✓ Other > Reset |
✓ 1 | — | ✓ 0xce |
✓ 0xce |
✓ 0xce |
| Restore Factory Defaults | ✓ Hold SEL DN + power on |
— | ✓ 3 | ✓ 0xcf |
✓ 0xcf |
✓ 0xcf |
| Test Pattern | — | — | — | ✓ 0xcd |
✓ 0xcd |
✓ 0xcd |
| Button Emulation (RS-232 only) | ||||||
| Menu Button | n/a | n/a | — | ✓ 0xf7 |
✓ 0xf7 |
✓ 0xf7 |
| Select Up | n/a | n/a | — | ✓ 0xfb |
✓ 0xfb |
✓ 0xfb |
| Select Down | n/a | n/a | — | ✓ 0xfa |
✓ 0xfa |
✓ 0xfa |
| Right / + | n/a | n/a | — | ✓ 0xfc |
✓ 0xfc |
✓ 0xfc |
| Left / − | n/a | n/a | — | ✓ 0xfd |
✓ 0xfd |
✓ 0xfd |
1 IR remote accesses this function indirectly via OSD menu navigation (SEL UP/DN and +/− buttons emulate the physical switch mount).
2 DDC/CI input source selection is limited to HDMI and USB-C. RS-232 additionally supports DisplayPort.
3 DDC/CI factory reset excludes user colour temperature and brightness settings.
4 DDC/CI Power On/Off is supported via HDMI and DisplayPort only — not available via USB-C DDC/CI.
5 OSD Buttons — 5 momentary button switch mount (P/N 4161003700-3) or 8-button digital type (P/N 416100520-3). Connected via CNC1.
6 IR Remote — Digital View remote control unit P/N 5590001xx-3 with IR sensor connected to IR1 on the controller board.
7 RS-232 via CN8: 9600 baud, 8N1. Command strings up to 380 bytes. Via J1: up to 50 bytes per string.
8 USB-C (RS-232) uses the same command protocol as CN8. The USB-C connection presents as a virtual serial port.
9 Ethernet (AI-50) — AI-50 board (P/N 4160282xx-3) bridges RS-232 commands over Ethernet via ESP32 MCU. See digitalview.com/board-ai-50.
10 Command codes shown are RS-232 hex command bytes. DDC/CI uses standard MCCS VCP codes over the I²C bus embedded in the video cable.
11 Button Emulation — these RS-232 commands simulate physical button presses. Marked "n/a" for OSD and IR as these ARE the physical buttons.