1. Introducció
The OREI BK-402A is a professional 8K 4x2 HDMI Matrix Switch designed for advanced audio and video distribution. This device features four HDMI inputs and two HDMI outputs, enabling you to independently route multiple source devices to two displays simultaneously. It supports resolutions up to 8K@60Hz with HDMI 2.1 and HDCP 2.3 compliance, ensuring compatibility with next-generation sources and displays.
Key features include 40Gbps high-bandwidth performance, support for VRR (Variable Refresh Rate), ALLM (Auto Low Latency Mode), and FVA (Fast VActive) for optimal gaming and high-frame-rate content. The matrix also offers eARC support between Input 1 and Output 1, alongside audio de-embedding through Optical (S/PDIF) and Analog 3.5mm outputs, supporting various audio formats like LPCM, Dolby Digital/Plus/TrueHD/Atmos, DTS, DTS-HD Master Audio, and DSD.
Figure 1: OREI BK-402A 8K 4x2 HDMI Matrix Switch.
2. Contingut del paquet
Si us plau, verifiqueu que tots els elements que s'enumeren a continuació estiguin inclosos al vostre paquet:
- 1x OREI BK-402A HDMI Matrix Switch
- 1x control remot IR
- 1x 5V/2A Multinational Power Supply
- 1 x manual d'usuari
Figure 2: Key features of the BK-402A.
3. Especificacions
| Característica | Descripció |
|---|---|
| Dimensions del producte | 8 x 3.5 x 1 polzades |
| Pes de l'article | 1.1 lliures |
| Número de model | BK-402A |
| Color | Negre |
| Tipus de connector | HDMI |
| Dispositius compatibles | Projector, televisió |
| Tipus de cable | HDMI |
| Estàndard HDMI | HDMI 2.1, HDCP 2.3 |
| Ample de banda de vídeo | 40 Gbps |
| Resolució màxima | 8K@60Hz (4:2:0 10-bit), 8K@30Hz (4:4:4 10-bit), 4K@120Hz (4:4:4 10-bit) |
| Suport HDR | HDR10, Dolby Vision |
| Característiques de joc | VRR, ALLM, FVA |
| Extracció d'àudio | Optical (S/PDIF), Analog 3.5mm |
| Suport eARC | Input 1 to Output 1 |
Figure 3: Technical specifications and compact size.
4. Característiques del panell frontal
The front panel of the BK-402A provides indicators and buttons for easy operation:
- Indicador d'alimentació: S'il·lumina quan el dispositiu està encès.
- Output 1/Output 2 Indicators: LEDs (1-4) show which input is currently routed to Output 1 and Output 2 respectively.
- eARC Indicator: Illuminates when eARC function is active.
- Output 1/Output 2 Buttons: Press to cycle through available inputs for the corresponding output.
- CONFIG DIP Switches: Used to set the working mode (Matrix, Splitter, Scaler, Pass-through). Refer to the manual for specific settings.
- EDID DIP Switches: Used to set EDID modes for resolution and audio formats. Refer to the manual for specific settings.
- Service Port (Micro USB): Per a actualitzacions de firmware.
Figure 4: IR Remote Control for easy input switching.
5. Connexions del panell posterior
The rear panel houses all the necessary input and output ports:
- OUT 1 (eARC) & OUT 2 HDMI Outputs: Connect to your displays (TVs, monitors, projectors). OUT 1 supports eARC functionality.
- INPUTS 1-4 HDMI Inputs: Connect your source devices (gaming consoles, streaming boxes, Blu-ray players, PCs). Input 1 also supports eARC.
- AUDIO OUT (Optical): Digital audio output for connecting to soundbars or receivers.
- AUDIO OUT (L/R 3.5mm): Analog audio output for connecting to powered speakers or headphones.
- CC 5V: Port d'entrada d'alimentació.
Figure 5: Rear panel showing all input and output ports.
6. Instruccions de configuració
Follow these steps to set up your OREI BK-402A HDMI Matrix Switch:
- Connecta les pantalles: Use high-quality HDMI 2.1 cables to connect your two displays to the OUT 1 (eARC) i SORTIDA 2 ports on the matrix.
- Connecteu els dispositius d'origen: Use high-quality HDMI 2.1 cables to connect your four source devices (e.g., PS5, Xbox Series X, Apple TV, Roku) to the ENTRADES 1-4 ports on the matrix.
- Connect Audio System (Optional): If you wish to use audio extraction, connect your soundbar or receiver to the ÒPTICA or L/R 3.5mm audio output ports. For eARC functionality, ensure your TV and soundbar both support eARC and connect the TV to OUT 1 and the soundbar to the eARC port on your TV.
- Connectar l'alimentació: Plug the provided 5V/2A power adapter into the DC 5V port on the matrix, then plug the adapter into a power outlet.
- Encès: Power on all connected devices (source devices, displays, and audio system). The matrix's power indicator should illuminate.
Video 1: Detailed guide on how to set up and use the OREI BK-402A eARC 4x2 HDMI Matrix Switch.
7. Instruccions de funcionament
The OREI BK-402A offers flexible control options:
- Entrades de commutació:
- Botons del tauler frontal: Utilitza el SORTIDA 1 i SORTIDA 2 buttons on the front panel to cycle through the connected HDMI inputs (1-4) for each respective output. The corresponding LED will indicate the active input.
- Control remot IR: Use the included IR remote control to directly select inputs for SORTIDA A (Output 1) and SORTIDA B (Output 2). For example, press '1' under 'OUT A' to display Input 1 on Output 1.
- eARC Functionality:
- Ensure your TV is connected to OUT 1 (eARC) and your eARC-compatible soundbar is connected to your TV's eARC port.
- Premeu el botó eARC button on the front panel or remote to activate/deactivate the eARC function. The eARC indicator LED will show its status.
- Nota: Both your TV and soundbar must support eARC for this function to work correctly.
- Extracció d'àudio:
- Audio from the selected HDMI input for Output 1 will be de-embedded and available through the ÒPTICA i L/R 3.5mm audio output ports.
- The Optical output is limited to 5.1Ch, and the Analog 3.5mm output is limited to 2Ch. Ensure your source device outputs audio in compatible formats for sound output from these ports. The device does not downmix 7.1Ch to 5.1Ch or 2Ch.
Vídeo 2: Acabatview of the OREI 8K eARC HDMI Matrix Switcher.
8. EDID and Configuration Management
The BK-402A features DIP switches for advanced configuration and EDID management, allowing you to optimize compatibility and performance with various devices:
| Tipus de canvi | Funció |
|---|---|
| CONFIG DIP Switch | Used to set the working mode of the matrix:
|
| Interruptor DIP EDID | Used to set EDID (Extended Display Identification Data) for optimal compatibility:
|
Note: Carefully consult the user manual for detailed instructions on setting these DIP switches to avoid compatibility issues.
9. Solució De Problemes
If you encounter issues with your OREI BK-402A, please refer to the following common troubleshooting steps:
- No Signal/Intermittent Signal:
- Ensure all HDMI cables are securely connected and are HDMI 2.1 certified.
- Try different HDMI cables, as cable quality can significantly impact 8K/4K@120Hz signals.
- Verify that the correct input is selected for the corresponding output on the matrix.
- Check the EDID settings using the DIP switches. Try setting it to a lower resolution or a specific audio format if issues persist.
- Power cycle all connected devices (source, matrix, display).
- No Audio/Incorrect Audio Format:
- Ensure your audio system is correctly connected to the Optical or 3.5mm output.
- Verify that your audio system supports the audio format being output by the source device.
- If using eARC, confirm both your TV and soundbar support eARC and it's enabled on both devices.
- Check the EDID settings related to audio formats.
- El control remot no respon:
- Ensure there are no obstructions between the remote and the IR receiver window on the front panel.
- Reviseu i substituïu les piles del comandament a distància si cal.
10. Manteniment
To ensure the longevity and optimal performance of your OREI BK-402A, follow these maintenance guidelines:
- Keep the device in a cool, dry place away from direct sunlight, heat sources, and moisture.
- Netegeu el dispositiu amb un drap suau i sec. No utilitzeu netejadors líquids ni en aerosol.
- Assegureu-vos una ventilació adequada al voltant de la unitat per evitar el sobreescalfament.
- Eviteu deixar caure o sotmetre el dispositiu a forts impactes.
11. Garantia i Suport
The OREI BK-402A comes with a 12-month Manufacturer's Warranty. OREI also provides Suport tècnic de per vida for its products.
For technical assistance, troubleshooting, or warranty claims, please contact OREI customer support through their official weblloc web o la informació de contacte que es proporciona al paquet.