1. Sarrera
The OREI HDS-401MV HDMI Switcher 4x1 Quad Screen Multiviewer is designed to connect up to four HDMI input sources to a single HD display. This device supports 1080p resolution, DTS/Dolby audio, and offers seamless switching between sources. It features multiple display modes, including a quad-screen multiviewer, allowing simultaneous viewing of up to four inputs. Control options include an IR remote and front panel buttons, with RS-232 for advanced integration. This switcher is ideal for applications requiring flexible display management of multiple HDMI sources.
2. Paketearen edukia
Mesedez, ziurtatu elementu guztiak paketean daudela:
- 1x OREI HDS-401MV HDMI Switcher
- 1x 5V DC korronte egokitzailea
- 1x IR urruneko kontrola
- 1x Erabiltzailearen eskuliburua
- Mounting Brackets (for installation)

Figure 2.1: Package contents including the switcher, power adapter, remote, and manual.
3. Produktua amaitu daview
3.1 Aurreko panela
The front panel provides essential controls and indicators for easy operation.
- Power LED: Unitatearen potentzia-egoera adierazten du.
- IR hargailua: Receives signals from the included IR remote control.
- Input LEDs (1-4): Indicate which HDMI input is currently selected or active.
- Eskalatzailearen botoia: Cycles through different scaling options.
- Audio botoia: Mutes audio or activates the on-screen display (hold for 1.5 seconds).
- Modu botoia: Cycles through the 5 available display modes (single, 2-screen, 4-screen equal, 4-screen 1-large/3-small, 4-screen 2-large/2-small).
- Hautatu botoia: Selects the active input source.
3.2 Atzeko panela
The rear panel houses all input and output connections.
- HDMI Inputs (IN 1-4): Connect your HDMI source devices (e.g., gaming consoles, media players).
- HDMI Output (OUTPUT): Connects to your display device (TV, monitor).
- VGA irteera: Provides an alternative video output for VGA-compatible displays.
- Audio Output (3.5mm Stereo): Analog audio output for external speakers or ampigogailuak.
- Optical (TOSLINK) Output: Digital audio output for soundbars or AV receivers.
- Mikro USB ataka: Used for firmware updates and RS-232 control.
- DC 5V potentzia sarrera: Konektatu barnean dagoen 5V DC elikatze-egokitzailea.
- Piztu/Itzali etengailua: Power toggle for the unit.

Figure 3.1: Front and rear panel view of the OREI HDS-401MV HDMI Switcher, highlighting input/output ports and control buttons.
4. Konfigurazioa
Follow these steps to set up your OREI HDS-401MV HDMI Switcher:
- Konektatu HDMI iturriak: Connect up to four HDMI source devices (e.g., Blu-ray player, gaming console, cable box, PC) to the HDMI IN 1-4 ports on the rear panel of the switcher using high-quality HDMI cables.
- Konektatu pantailara: Connect your HD display (TV, monitor, projector) to the HDMI OUTPUT port on the rear panel of the switcher using an HDMI cable. If using a VGA display, connect it to the VGA output.
- Konektatu audioa (aukerakoa): If you wish to extract audio to an external sound system, connect your audio device to either the 3.5mm Stereo Audio Output or the Optical (TOSLINK) Output.
- Piztu: Connect the included 5V DC power adapter to the DC 5V port on the rear panel and plug it into a power outlet. Flip the On/Off switch to the 'On' position. The Power LED on the front panel will illuminate.
- Position IR Remote: Ensure the IR receiver window on the front panel is unobstructed if you plan to use the remote control.

Figure 4.1: Diagram illustrating typical connections for the OREI HDS-401MV HDMI Switcher with various input sources and display options.
5. Funtzionamendu-argibideak
5.1 Sarrerak aldatzea
You can switch between HDMI input sources using the front panel buttons or the IR remote control.
- Aurrealdeko panela: Press the 'Select' button repeatedly to cycle through the connected HDMI inputs (IN 1 to IN 4). The corresponding Input LED will light up.
- IR urrunekoa: Use the numbered buttons (1, 2, 3, 4) on the remote to directly select the desired HDMI input.
5.2 Anitzaviewer Moduak
The HDS-401MV offers 5 different display modes for viewing multiple inputs simultaneously or individually.
- Mode 1 (Single Screen): Displays one selected HDMI input in full screen.
- Mode 2 (2-Screen Mode): Displays two selected HDMI inputs side-by-side.
- Mode 3 (4-Screen Equal): Displays all four HDMI inputs in equal-sized quadrants.
- Mode 4 (4-Screen 1-Large/3-Small): Displays one large HDMI input with three smaller inputs on the side.
- Mode 5 (4-Screen 2-Large/2-Small): Displays two large HDMI inputs with two smaller inputs.
Press the 'Mode' button on the front panel or the remote control to cycle through these display modes. Use the 'Select' button to choose which inputs are displayed in multi-viewer modes.

Figure 5.1: Visual representation of the various multiviewer display modes available on the OREI HDS-401MV.
5.3 Audio-kudeaketa
The switcher supports audio extraction and pass-through for various formats.
- Ezkutatu audioa: Tap the 'Audio' button on the front panel or remote to mute/unmute the audio from the selected HDMI input.
- Pantailako pantaila (OSD): Hold the 'Audio' button for 1.5 seconds to activate the On-Screen Display for advanced audio settings.
- Audio Pass-through: Supports DTS Digital, Dolby Digital, LPCM, True HD/DTS-HD master audio, and pass-through for 5.1, 7.1, and 9.1 channel audio.
5.4 Resolution Scaling
The 'Scaler' button on the front panel allows you to adjust the output resolution to match your display's capabilities or preferences.
- Ebazpen-aukerak: Cycle through available output resolutions (e.g., 1080p, 720p) by pressing the 'Scaler' button.
5.5 Firmware Update & RS-232 Control
The Micro USB port on the rear panel can be used for firmware updates and serial control.
- Firmware eguneratzea: Connect the Micro USB port to a computer to update the device firmware as needed.
- RS-232 kontrola: Use the Micro USB port with an appropriate RS-232 to USB cable and a serial command tool on your PC to send ASCII commands for device control.
Video 5.2: Official OREI product video demonstrating the features and functionality of the Quad Multi-Viewer HDMI Switcher.
6. Zehaztapenak
| Eredua | HDS-401MV |
| Sarrerak | 4x HDMI |
| Irteerak | 1x HDMI, 1x VGA, 1x 3.5mm Stereo Audio, 1x Optical (TOSLINK) |
| HDMI betetzea | HDMI 1.4 |
| HDCP betetzea | HDCP 1.4 |
| Onartutako Ebazpenak | 1080p arte |
| Audio formatuak | DTS Digital, Dolby Digital, LPCM, True HD/DTS-HD Master Audio (Pass-through 5.1, 7.1, 9.1) |
| Kontrol-metodoak | Front Panel Buttons, IR Remote Control, RS-232 (via Micro USB) |
| Elikatze Hornidura | DC 5V/1A |
| Itxitura | Metala |
| Elementuaren pisua | 1.5 kilo |
7. Arazoak
Arazoren bat izanez gero, jo ezazu honako ohiko irtenbide hauetara:
- Bideo-irteerarik ez:
- Ensure all HDMI/VGA cables are securely connected.
- Verify the power adapter is connected and the unit is powered on.
- Check if the correct input source is selected on the switcher and your display.
- Try a different HDMI/VGA cable.
- Test with a different display or source device to isolate the problem.
- Audio-irteerarik ez:
- Ensure audio cables (3.5mm or Optical) are correctly connected to your sound system.
- Check if the audio is muted on the switcher (tap the 'Audio' button).
- Verify your sound system is powered on and set to the correct input.
- Ziurtatu iturburu-gailuak audioa igortzen duela.
- Urruneko kontrola ez dabil:
- Ensure there are no obstructions between the remote and the switcher's IR receiver.
- Egiaztatu bateriak urrutiko agintean.
- Point the remote directly at the IR receiver window.
- Picture Quality Issues (Flickering, Distortion):
- Use shorter, high-quality HDMI cables (recommended under 10 feet).
- Try adjusting the resolution using the 'Scaler' button on the front panel.
- Ensure your source and display devices are compatible with the selected resolution.
8. Bermea eta Laguntza
The OREI HDS-401MV HDMI Switcher comes with a 1 urteko berme osoa from OREI. This warranty covers defects in materials and workmanship under normal use.
For technical support, troubleshooting assistance, or warranty claims, please contact OREI customer service:
- Posta elektronikoa: info@orei.com
- Fabrikatzailearen kontaktua: info@orei.com
- Packer Contact: info@fayzelectronics.com, 99250 12671
Gorde erosketaren egiaztagiria bermea balioztatzeko.