1. Introduction
This manual provides detailed instructions for the avedio links 4x2 HDMI Matrix Switch. This device allows you to connect up to four HDMI source devices and distribute their signals to two HDMI displays simultaneously. It supports resolutions up to 4K@30Hz, HDCP 2.2, and offers audio extraction via SPDIF and 3.5mm ports. The matrix functionality enables flexible routing, allowing either display to show content from any input, or both displays to show the same content.
Image 1.1: The avedio links 4x2 HDMI Matrix Switch is suitable for various environments, including home theaters, offices, and conference rooms.
2. Package Contents
Verify that all items are present in your package:
- 1 x avedio links 4x2 HDMI Matrix Switch
- 1 x 5V Power Adapter
- 1 x IR Remote Control
- 1 x User Manual (this document)
3. Product Diagram
Familiarize yourself with the ports and controls on your avedio links 4x2 HDMI Matrix Switch:
Image 3.1: Front and rear panel layout with input/output connections.
Front Panel:
- SPDIF-B / SPDIF-A: Optical audio output ports for Output B and Output A.
- L/R-B / L/R-A: 3.5mm stereo audio output ports for Output B and Output A.
- EDID: DIP switch for EDID management.
- IR: Infrared receiver for remote control.
- Switch-B / Switch-A: Buttons to cycle through inputs for Output B and Output A respectively.
Rear Panel:
- DC 5V: Power input port.
- OUT-A / OUT-B: HDMI output ports for connecting to displays.
- IN-1 / IN-2 / IN-3 / IN-4: HDMI input ports for connecting source devices.
4. Setup Instructions
Follow these steps to set up your HDMI Matrix Switch:
- Connect HDMI Sources: Connect your HDMI source devices (e.g., Blu-ray player, game console, PC) to the HDMI IN 1-4 ports on the rear panel of the matrix switch using high-quality HDMI cables.
- Connect HDMI Displays: Connect your HDMI displays (e.g., HDTV, projector) to the OUT-A and OUT-B ports on the rear panel using high-quality HDMI cables.
- Connect Audio Outputs (Optional): If you require separate audio output, connect your audio receiver, soundbar, or headphones to the SPDIF-A/B (optical) or L/R-A/B (3.5mm stereo) ports on the front panel.
- Connect Power: Plug the included 5V power adapter into the DC 5V port on the rear panel, then plug the adapter into a power outlet. The device will power on automatically.
- Power On Devices: Power on all connected HDMI source devices and displays.
The matrix switch will automatically detect the connected devices. You can now select inputs for each output using the front panel buttons or the remote control.
5. Operating Instructions
The avedio links 4x2 HDMI Matrix Switch offers flexible control options:
5.1. Using the Front Panel Buttons
- Press the Switch-A button repeatedly to cycle through HDMI inputs (IN 1, IN 2, IN 3, IN 4) for Output A.
- Press the Switch-B button repeatedly to cycle through HDMI inputs (IN 1, IN 2, IN 3, IN 4) for Output B.
5.2. Using the IR Remote Control
The included IR remote control provides direct access to inputs for each output.
Image 5.1: Layout of the IR Remote Control.
- Press OUT A 1/2/3/4 to select the corresponding HDMI input for Output A.
- Press OUT B 1/2/3/4 to select the corresponding HDMI input for Output B.
5.3. Matrix and Splitter Modes
The device can operate in two primary modes:
- Matrix Mode: Allows Output A and Output B to display different HDMI inputs. For example, Output A shows IN1, and Output B shows IN3.
- Splitter Mode: Allows both Output A and Output B to display the same HDMI input. For example, both Output A and Output B show IN2.
Image 5.2: Visual representation of Splitter Mode and Matrix Mode.
6. EDID Settings
The EDID (Extended Display Identification Data) DIP switch allows you to manage the audio and video capabilities reported to the source devices, ensuring compatibility and optimal performance with your displays and audio systems.
Image 6.1: EDID DIP switch location.
The DIP switch has four positions (1, 2, 3, 4). A downward position indicates '1' (ON), and an upward position indicates '0' (OFF).
Image 6.2: EDID Mode Configuration Table.
| DIP Switch Setting (1234) | Description |
|---|---|
| 0000 | TV COPY (Automatic EDID from Output A) |
| 0001 | 1080p, 2CH Audio |
| 0010 | 1080p, Dolby/DTS 5.1 |
| 0011 | 1080p, HD Audio 7.1 |
| 0100 | 3D, 2CH Audio |
| 0101 | 3D, Dolby/DTS 5.1 |
| 0110 | 3D, HD Audio 7.1 |
| 0111 | 4K30, 2CH Audio |
| 1000 | 4K30, Dolby/DTS 5.1 |
| 1001 | 4K30, HD Audio 7.1 |
| 1010 | 4K60 (4:2:0), 2CH Audio |
| 1011 | 4K60 (4:2:0), Dolby/DTS 5.1 |
| 1100 | 4K60 (4:2:0), HD Audio 7.1 |
| 1101 | 4K60, 2CH Audio |
| 1110 | 4K60, Dolby/DTS 5.1 |
| 1111 | 4K60, HD Audio 7.1 |
Note: When using the distribution mode (Splitter Mode) with mixed resolution displays (e.g., 4K and 1080p), set the EDID to "0000" (TV COPY) to allow the matrix to automatically match the resolution of the output device. This ensures both displays receive a compatible signal.
7. Troubleshooting
If you encounter issues with your avedio links 4x2 HDMI Matrix Switch, please refer to the following common solutions:
- No Picture/Signal:
- Ensure all HDMI cables are securely connected to both the source devices, the matrix switch, and the displays.
- Verify the power adapter is correctly connected and the matrix switch is powered on.
- Confirm that the correct input is selected for the respective output on the matrix switch.
- Try a different HDMI cable.
- Adjust the EDID settings (refer to Section 6) to a compatible resolution and audio format for your displays.
- Flickering or Unstable Picture:
- Check HDMI cable quality and length. Longer or lower-quality cables can cause signal degradation.
- Ensure the EDID setting is appropriate for your display's capabilities.
- Try connecting the source directly to the display to rule out source or display issues.
- No Audio or Incorrect Audio Format:
- Verify that your audio system is correctly connected to the SPDIF or 3.5mm audio output ports.
- Check the EDID settings (refer to Section 6) to ensure the desired audio format (e.g., 2CH, 5.1, 7.1) is selected.
- Ensure the audio output on your source device is configured correctly.
- Remote Control Not Working:
- Ensure there are no obstructions between the remote and the IR receiver on the matrix switch.
- Check and replace the remote control battery if necessary.
If problems persist after attempting these solutions, please contact customer support.
8. Specifications
| Feature | Description |
|---|---|
| Model Number | 4x2 HDMI Matrix (4K@60Hz) |
| HDMI Version | HDMI 1.4b (Supports HDCP 2.2) |
| Max Resolution | 4K@30Hz (12bit Deep Color), 2K@144Hz |
| Audio Support | DTS-HD/DTS/Dolby-AC3/DSD, 2CH, 5.1CH, 7.1CH |
| Audio Output | 2 x SPDIF (Optical), 2 x 3.5mm L/R Stereo |
| EDID Management | Settable via DIP switches |
| Control | Front panel buttons, IR Remote Control |
| Power Supply | DC 5V |
| Product Dimensions | 6 x 8.2 x 1 inches |
| Item Weight | 2.77 pounds |
9. Maintenance
To ensure the longevity and optimal performance of your avedio links 4x2 HDMI Matrix Switch, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the exterior of the device. Avoid using liquid cleaners or abrasive materials.
- Environment: Keep the device in a cool, dry place away from direct sunlight, heat sources, and excessive moisture. Ensure adequate ventilation around the unit.
- Handling: Handle the device with care. Avoid dropping it or subjecting it to strong impacts.
- Power: Disconnect the power adapter if the device will not be used for an extended period.
10. Warranty and Support
For warranty information, please refer to the documentation provided at the time of purchase or contact your retailer. avedio links is committed to providing quality products and customer satisfaction.
For technical support or any questions regarding your avedio links 4x2 HDMI Matrix Switch, please contact us via email:
Email: linkscs01@foxmail.com
We will endeavor to resolve any issues promptly.
