Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your AV Access HDMI Matrix Switch 4x2 4K@60Hz, Model 4KMX42-H2A. This device allows you to connect up to four HDMI source devices and distribute their signals to two HDMI displays independently or simultaneously. It supports advanced features such as 4K@60Hz resolution, HDR, ARC, audio extraction, and independent 4K to 1080p scaling for each output.
Key Features
- 4K@60Hz 4 In 2 Out Matrix: Supports HDMI 2.0 with 4K@60Hz 4:4:4 resolution, HDR10, HLG, and Dolby Vision. Allows any of 4 inputs to be routed to output 1 and/or output 2, with outputs displaying different or identical content.
- Simultaneous 4K and 1080P Output: Capable of playing 4K and 1080P content simultaneously, with 18Gbps bandwidth.
- ARC & Audio Extraction: Features Audio Return Channel (ARC) on output 2 (requires TV with ARC function) and audio de-embedding. S/PDIF (Toslink) output supports PCM 2.0/5.1 and DTS up to 5.1 CH. A 3.5mm L/R headphone analog audio output is de-embedded from output 1.
- Independent Downscaling: Each output supports independent scaling from 4K to 1080P.
- Multiple Control Options: Operates via IR remote control, front panel buttons, and RS-232 serial communication with a documented API.
- Robust Design: Built-in surge protection and superior ESD protection. Sturdy metal enclosure minimizes noise interference.
Package Contents
Verify that all items listed below are included in your package:
- AV Access HDMI Matrix Switch 4x2 (Model 4KMX42-H2A)
- Power Adapter
- IR Remote Control
- Mounting Brackets (with screws)
- User Manual (this document)
This image displays the complete package contents: the AV Access HDMI Matrix Switch unit, its power adapter, an infrared (IR) remote control for convenient operation, and mounting brackets with screws for secure installation.
Product Overview
Front and Rear Panels
This image displays the front and rear panels of the AV Access HDMI Matrix Switch. The front panel features input selection buttons and status indicators. The rear panel includes four HDMI inputs, two HDMI outputs, S/PDIF and 3.5mm audio outputs, an RS232 port, and the power input.
Connection Diagram
This diagram illustrates how to connect various source devices such as computers, gaming consoles (Xbox, PS4), and IPTV boxes to the four HDMI inputs of the matrix switch. It also shows the two HDMI outputs connecting to different displays (UHD TV1, HDTV2) and audio outputs connecting to an amplifier, speakers, or headphones. The diagram highlights both Matrix Mode (different outputs) and Splitter Mode (same outputs).
Setup Instructions
Basic Connection
- Ensure all devices (source, display, matrix switch) are powered off before making connections.
- 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 2.0 cables.
- Connect your HDMI display devices (e.g., TV, projector) to the HDMI OUT 1 and HDMI OUT 2 ports on the rear panel using high-quality HDMI 2.0 cables.
- If using audio extraction, connect your audio receiver or soundbar to the S/PDIF OUT port or your headphones/speakers to the 3.5mm L/R audio output.
- Connect the provided power adapter to the DC 5V port on the matrix switch and then plug it into a power outlet.
- Power on all connected devices.
Using the Scaler Function
The matrix switch supports independent downscaling from 4K to 1080p for each output. This allows you to connect a 4K source and simultaneously display 4K on one screen and 1080p on another.
This image highlights the built-in scaler feature of the HDMI Matrix Switch. It shows a 4K source connected to an input, with the switch simultaneously outputting 4K resolution to a 4K TV and downscaling to 1080p for a 1080p TV. This allows for flexible display configurations.
Configuring ARC (Audio Return Channel)
To utilize the ARC function on Output 2:
- Ensure your television supports ARC and that the HDMI port you are using on the TV is ARC-enabled.
- Connect your TV's HDMI (ARC) port to the HDMI OUT 2 port of the matrix switch using an HDMI 2.0 cable.
- Connect your soundbar, speaker, home theater system, or A/V receiver to the S/PDIF OUT port of the matrix switch using an optical cable, or ensure your receiver is connected via HDMI to the matrix.
- Adjust the DIP switch on the matrix for Output 2 to enable ARC or De-embed audio as needed.
- Note that the TV remote will not control the volume of the audio extracted from the matrix. Volume must be adjusted on your soundbar/speaker/A/V receiver. The S/PDIF port light will be red when ARC is active.
This diagram details the setup for using the Audio Return Channel (ARC) function. It shows how to connect your TV's HDMI (ARC) port to HDMI Output 2 of the matrix switch. Audio from the TV can then be sent back to an amplifier or soundbar via the optical cable or the HDMI connection itself. Note that the 3.5mm port does not support ARC.
Operating Instructions
Switching Inputs and Outputs
The matrix switch offers flexible control for routing inputs to outputs:
- Front Panel Buttons: Use the 'Output 1' and 'Output 2' buttons on the front panel to cycle through the available HDMI inputs (1-4) for each respective output. The corresponding LED indicator will light up to show the active input.
- IR Remote Control: Use the provided IR remote control to directly select inputs for Output 1 and Output 2. The remote has dedicated buttons for each input (1-4) and each output (Output 1, Output 2). Point the remote towards the IR receiver on the front panel of the matrix switch.
- RS-232 Control: For advanced users and integrated systems, the matrix switch can be controlled via RS-232 serial commands. Refer to the detailed API documentation provided by AV Access for specific command protocols.
Matrix Mode vs. Splitter Mode
The device can operate in two primary modes:
- Matrix Mode: Output 1 and Output 2 can display different HDMI sources simultaneously. For example, Input 1 to Output 1, and Input 2 to Output 2.
- Splitter Mode: Both Output 1 and Output 2 can display the same HDMI source simultaneously. For example, Input 1 to Output 1 and Input 1 to Output 2.
Maintenance
Proper maintenance ensures the longevity and optimal performance of your HDMI Matrix Switch.
- Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Avoid using liquid or aerosol cleaners, as they may damage the device.
- Ventilation: Ensure the unit has adequate ventilation. Do not block any ventilation openings.
- Environment: Keep the device away from excessive heat, moisture, dust, and direct sunlight.
- Cable Management: Ensure all cables are securely connected and not under strain. Avoid bending HDMI cables sharply.
Troubleshooting
If you encounter issues, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No picture on display | Loose HDMI cables, incorrect input selection, power issue, HDCP incompatibility. | Check all HDMI cable connections. Ensure the correct input is selected on the matrix switch and the correct input is selected on your display. Verify the power adapter is connected and the unit is on. Ensure all devices support HDCP 2.2. Try restarting all devices. |
| No audio | Audio settings, incorrect audio output connection, ARC not enabled. | Check audio settings on your source device and display. Ensure audio cables (S/PDIF, 3.5mm) are correctly connected. If using ARC, verify it's enabled on your TV and the matrix switch (DIP switch setting). |
| Remote control not working | Dead batteries, obstructed signal, remote interference. | Replace batteries in the remote control. Ensure there are no obstructions between the remote and the matrix switch's IR receiver. Short press the system code switch on the remote's panel to avoid interfering with other IR devices. |
| 4K content not displaying correctly | Cable quality, display compatibility, source settings. | Use certified high-speed HDMI 2.0 cables. Ensure your display supports 4K@60Hz and HDR. Check the output settings of your source device. |
| Output resolution is 1080p instead of 4K | Scaler activated, display limitation. | If one display is 1080p, the scaler might be active. Ensure your 4K display is connected to an output that is not downscaling. Verify the display's native resolution. |
Specifications
| Feature | Detail |
|---|---|
| Model Number | 4KMX42-H2A |
| Color | Black |
| Connector Type | HDMI |
| Compatible Devices | Television, Blu-ray players, game consoles, PCs, etc. |
| Number of Ports | 6 (4 HDMI In, 2 HDMI Out) |
| Item Dimensions (D x W x H) | 3.94"D x 7.87"W x 0.79"H (approx. 10cm x 20cm x 2cm) |
| Max Resolution | 4K@60Hz 4:4:4 |
| Bandwidth | 18Gbps |
| HDCP Compliance | HDCP 2.2 |
| Audio Formats | PCM 2.0/5.1/7.1, TrueHD, Atmos, DTSHD Master Audio, DTS:X (HDMI); PCM 2.0/5.1, DTS up to 5.1 CH (S/PDIF) |
| Control Methods | IR Remote, Front Panel Buttons, RS-232 |
Warranty Information
AV Access provides a 1-Year Warranty for all retail customers and a 3-Year Warranty for business customers. Additionally, lifetime 1-to-1 customer service is available from AV Access.
Support
For technical assistance, troubleshooting, or warranty claims, please contact AV Access customer support. You can typically find support contact information on the official AV Access website or through the retailer where you purchased the product.
If purchased via Amazon, you can contact the seller, ACTIONS GLOBAL US INC, by navigating to the product page and clicking on the seller's name under 'Sold by'. This will lead you to a page where you can 'Ask a question'.