1. Introducere
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. Conținutul pachetului
Vă rugăm să vă asigurați că toate articolele sunt prezente în colet:
- 1x OREI HDS-401MV HDMI Switcher
- 1x adaptor de alimentare 5V DC
- 1x telecomandă IR
- 1x Manual de utilizare
- Mounting Brackets (for installation)

Figure 2.1: Package contents including the switcher, power adapter, remote, and manual.
3. Produs terminatview
3.1 Panoul frontal
The front panel provides essential controls and indicators for easy operation.
- LED de alimentare: Indică starea de alimentare a unității.
- Receptor IR: Receives signals from the included IR remote control.
- LED-uri de intrare (1-4): Indicate which HDMI input is currently selected or active.
- Scaler Button: Cycles through different scaling options.
- Buton audio: Mutes audio or activates the on-screen display (hold for 1.5 seconds).
- Butonul de mod: 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).
- Select Button: Selects the active input source.
3.2 Panoul din spate
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).
- Ieșire VGA: Provides an alternative video output for VGA-compatible displays.
- Audio Output (3.5mm Stereo): Analog audio output for external speakers or ampliificatori.
- Optical (TOSLINK) Output: Digital audio output for soundbars or AV receivers.
- Port micro USB: Used for firmware updates and RS-232 control.
- Intrare de alimentare DC 5V: Conectați adaptorul de alimentare CC de 5V inclus.
- Comutator pornit/oprit: 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. Configurare
Follow these steps to set up your OREI HDS-401MV HDMI Switcher:
- Conectați surse HDMI: 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.
- Conectare la afișaj: 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.
- Conectare audio (opțional): 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.
- Pornire: 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. Instrucțiuni de utilizare
5.1 Comutarea intrărilor
You can switch between HDMI input sources using the front panel buttons or the IR remote control.
- Panoul frontal: Press the 'Select' button repeatedly to cycle through the connected HDMI inputs (IN 1 to IN 4). The corresponding Input LED will light up.
- Telecomanda IR: Use the numbered buttons (1, 2, 3, 4) on the remote to directly select the desired HDMI input.
5.2 Multiviewer Moduri
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 Management audio
The switcher supports audio extraction and pass-through for various formats.
- Dezactivați sunetul: Tap the 'Audio' button on the front panel or remote to mute/unmute the audio from the selected HDMI input.
- Afișare pe ecran (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.
- Opțiuni de rezoluție: 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.
- Actualizarea firmware-ului: Connect the Micro USB port to a computer to update the device firmware as needed.
- Control RS-232: 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. Specificații
| Model | HDS-401MV |
| Intrări | 4x HDMI |
| Ieșiri | 1x HDMI, 1x VGA, 1x 3.5mm Stereo Audio, 1x Optical (TOSLINK) |
| Conformitate HDMI | HDMI 1.4 |
| Conformitate HDCP | HDCP 1.4 |
| Rezoluții acceptate | Până la 1080p |
| Formate audio | DTS Digital, Dolby Digital, LPCM, True HD/DTS-HD Master Audio (Pass-through 5.1, 7.1, 9.1) |
| Metode de control | Front Panel Buttons, IR Remote Control, RS-232 (via Micro USB) |
| Alimentare electrică | DC 5V/1A |
| Incinta | Metal |
| Greutatea articolului | 1.5 lire sterline |
7. Depanare
Dacă întâmpinați probleme, vă rugăm să consultați următoarele soluții comune:
- Fără ieșire video:
- Ensure all HDMI/VGA cables are securely connected.
- Verificați dacă adaptorul de alimentare este conectat și dacă unitatea este pornită.
- Check if the correct input source is selected on the switcher and your display.
- Încearcă un alt cablu HDMI/VGA.
- Test with a different display or source device to isolate the problem.
- Fără ieșire audio:
- 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.
- Confirm the source device is outputting audio.
- Telecomanda nu funcționează:
- Ensure there are no obstructions between the remote and the switcher's IR receiver.
- Verificați bateriile din telecomandă.
- 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. Garanție și asistență
The OREI HDS-401MV HDMI Switcher comes with a 1 an garanție completă 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:
- E-mail: info@orei.com
- Contact producator: info@orei.com
- Packer Contact: info@fayzelectronics.com, 99250 12671
Vă rugăm să păstrați dovada achiziției pentru validarea garanției.