1. Introduction
The Yinker 8x8 HDMI Matrix Switcher & Splitter is designed to manage up to 8 HDMI input sources and distribute them to 8 HDMI displays simultaneously. This device supports resolutions up to 4Kx2K (3840x2160) at 30Hz, HDCP, 1080P 3D, and various audio formats including PCM, Dolby AC3, DTS5.1, DTS7.1, and DSD. Its rackmountable design makes it suitable for professional installations, offering flexible control options via front panel buttons, IR remote, RS232 port, and LAN port.
2. Package Contents
Please verify that all items listed below are included in your package:
- 1x Yinker 8x8 HDMI Matrix Switcher
- 1x IR Remote Control
- 1x Power Adapter
- 1x RS232 Serial Cable
- 1x CD Driver (for RS232/LAN software control)
- 1x User Manual

Video 2.1: An unboxing video demonstrating the contents of the Yinker HDMI Matrix 8x8 package.
3. Product Overview
3.1 Front Panel

- LCD Display: Shows current switch status and menu options.
- Power Indicator: Illuminates when the device is powered on.
- IR Receiver: For receiving signals from the IR remote control.
- Input Buttons (1-8): Select the desired HDMI input source.
- Output Buttons (1-8): Select the desired HDMI output display.
- Control Buttons (ALL, EDID, UP, ENTER, MENU, DOWN): For advanced settings and navigation.
3.2 Rear Panel

- HDMI IN (1-8): Connect your HDMI source devices (e.g., set-top boxes, laptops, PCs, game consoles).
- HDMI OUT (1-8): Connect your HDMI display devices (e.g., HDTVs, monitors, projectors).
- LAN Port: For network control via TCP/IP protocol.
- RS232 OUT/IN: For serial control via RS232 protocol.
- DC 12V: Power input port.
- ON/OFF Switch: Main power switch for the device.
4. Setup and Installation
Follow these steps to set up your Yinker 8x8 HDMI Matrix Switcher:
- Power Off Devices: Ensure all HDMI source devices, display devices, and the matrix switcher are powered off before making any connections.
- Connect HDMI Sources: Connect your HDMI source devices (e.g., Blu-ray players, gaming consoles, computers) to the HDMI IN 1-8 ports on the rear panel of the matrix switcher using high-quality HDMI cables.
- Connect HDMI Displays: Connect your HDMI display devices (e.g., TVs, monitors, projectors) to the HDMI OUT 1-8 ports on the rear panel of the matrix switcher using high-quality HDMI cables.
- Connect Control Cables (Optional):
- For RS232 control, connect the RS232 serial cable from your control system or PC to the RS232 IN port.
- For LAN control, connect an Ethernet cable from your network router or switch to the LAN port.
- Connect Power: Connect the provided 12V DC power adapter to the DC 12V port on the matrix switcher, then plug the adapter into a power outlet.
- Power On: Turn on the matrix switcher using the ON/OFF switch. Then, power on your HDMI source devices and display devices.
- Rack Mounting: The device is designed to be rackmountable in a standard 1U 19-inch cabinet/rack. Secure it using appropriate rackmount screws (not included).

5. Operating Instructions
5.1 Control Methods
The Yinker 8x8 HDMI Matrix Switcher offers multiple control options:
- Front Panel Buttons: Directly select input and output ports using the physical buttons on the device. First, press the desired input button (e.g., IN1), then press the desired output button (e.g., OUT1), and finally press the "ENTER" button to confirm the switch.
- IR Remote Control: Use the included IR remote to switch inputs and outputs. Point the remote towards the IR receiver on the front panel.
- RS232 Port Control: Connect a PC or control system via the RS232 port. Use the provided CD driver for software installation and follow the protocol in the user manual for command-based control.
- LAN Port Control: Connect to a network via the LAN port. Download the control software from the provided CD driver and follow the instructions for network-based control.

5.2 Display Modes
The matrix switcher supports three primary display modes:
- One-to-All Mode: A single input source is displayed on all connected output displays. To activate, select an input, then press "ALL" and "ENTER" on the front panel.
- Output-to-Output (O-to-O) Mode: Each output displays its corresponding input (e.g., Output 1 displays Input 1, Output 2 displays Input 2, etc.). To activate, press "MENU" until "SWITCH O To O" appears, then press "ENTER".
- Matrix Mode: Any input can be routed to any output independently. Select an input, then select the desired output(s), and press "ENTER". Note that only one input can be selected at a time for routing to multiple outputs.

Video 5.1: A demonstration of the three display modes (One-to-All, O-to-O, and Matrix mode) of the Yinker HDMI Matrix.
5.3 Scene Management (Store and Recall)
The matrix switcher allows you to store and recall up to 16 different scene configurations. This feature is useful for quickly switching between frequently used setups.
- Store Scene: First, configure the desired input-to-output routing. Then, press "MENU" until "STORE SCENE" appears on the LCD. Use the "UP" and "DOWN" buttons to select a scene number (1-16), and press "ENTER" to save the current configuration.
- Recall Scene: To recall a saved scene, press "MENU" until "RECALL SCENE" appears on the LCD. Use the "UP" and "DOWN" buttons to select the desired scene number, and press "ENTER" to load the saved configuration.
Video 5.2: A guide on how to store and recall scene configurations on the Yinker HDMI Matrix.
6. Specifications
| Feature | Specification |
|---|---|
| Model Number | HD0808 |
| HDMI Inputs | 8 |
| HDMI Outputs | 8 |
| Max Resolution | 4Kx2K @ 30Hz (3840x2160) |
| HDCP Version | HDCP 1.4 |
| Audio Formats | PCM, Dolby AC3, DTS5.1, DTS7.1, DSD |
| Control Methods | Front Panel, IR Remote, RS232, LAN |
| Rackmount | 1U 19-inch standard |
| Power Supply | DC 12V |
| Item Weight | 8.95 pounds |
| Package Dimensions | 22.24 x 17.32 x 5.79 inches |
7. Troubleshooting
If you encounter issues with your Yinker 8x8 HDMI Matrix Switcher, please refer to the following common troubleshooting steps:
- No Picture/Signal:
- Ensure all HDMI cables are securely connected to both source and display devices, and to the matrix switcher.
- Verify that the correct input source is selected for the desired output display on the matrix switcher.
- Check if the power adapter is properly connected and the matrix switcher is powered on.
- Test with different HDMI cables or source/display devices to isolate the problem.
- Picture Flickering/Intermittent Signal:
- Use high-quality HDMI cables, especially for longer distances or 4K resolutions.
- Ensure the resolution and refresh rate of your source device are compatible with your display and the matrix switcher (up to 4K@30Hz).
- Check for any electromagnetic interference from other electronic devices.
- Remote Control Not Working:
- Ensure there are no obstructions between the remote control and the IR receiver on the matrix switcher.
- Check and replace the remote control battery if necessary.
- Confirm the remote is pointed directly at the IR receiver.
- LAN/RS232 Control Issues:
- Verify cable connections for LAN or RS232.
- Ensure the control software is correctly installed from the provided CD driver and configured according to the manual's protocol.
- Check network settings for LAN control.
8. Maintenance
To ensure optimal performance and longevity of your Yinker 8x8 HDMI Matrix Switcher, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the exterior of the device. Avoid using harsh chemicals or abrasive cleaners.
- Ventilation: Ensure the device has adequate ventilation. Do not block the heat emission holes on the sides of the unit.
- Environment: Operate the device in a cool, dry environment, away from direct sunlight, excessive heat, humidity, or dust.
- Cable Management: Organize cables neatly to prevent strain on ports and accidental disconnections.
9. Warranty and Support
Yinker products are designed for reliability and performance. For any questions or technical assistance, please contact YINKER OFFICIAL support. Refer to your purchase documentation for specific warranty details.
Optional protection plans are available for extended coverage:
- 2-Year Protection Plan
- 3-Year Protection Plan
- Complete Protect (monthly billing)