Decimator MD-HX HDMI and SDI Cross Converter User Manual

1. Introduction

The Decimator MD-HX is a highly versatile and portable cross converter designed for professional video production environments. It facilitates seamless conversion between HDMI and SDI signals, offering advanced scaling and frame rate conversion capabilities. Its intuitive LCD and button control system allows for easy access to all features without requiring a computer for most settings adjustments, making it ideal for on-the-go use.

2. Key Features

• HDMI and SDI Cross Conversion: Supports both 3G Level A and B on input and output.
• Built-in Scaling and Frame Rate Conversion: Allows for up/down conversion and frame rate adjustments to various standards.
• Image Flipping: Horizontal and/or vertical image flipping is possible via the built-in scaler.
• Multiple SDI Outputs: Features four (3G/HD/SD)-SDI outputs, enabling use as a 1 to 4 distribution amplifier.
• Audio Routing: Audio pairs in the SDI and HDMI outputs can be rearranged as required.
• Robust Design: Encased in a durable aluminum chassis with an easy-to-use LCD and button control system.
• Secure Power: Includes a metal thread locking DC power socket for reliable power connection.
• USB Connectivity: USB port for control and firmware updates.

3. Package Contents

• Decimator MD-HX Unit
• Power Supply with Locking DC Connector and International Adapters
• USB Mini-B Cable
• HDMI Cable

4. Setup

4.1 Power Connection

Connect the provided power supply to the locking DC power socket on the unit. The MD-HX accepts a wide voltage range from +5V to +32V DC. Ensure the connection is secure by twisting the locking connector. The unit can also be powered via the USB Mini-B port for added flexibility.

4.2 Initial Configuration

Upon first use or if experiencing unexpected behavior, it is recommended to perform a factory reset. This ensures the unit starts with default settings, providing a clean slate for configuration. Consult the detailed manual for specific factory reset procedures.

5. Connections

5.1 HDMI Input/Output

• HDMI Input: Connect your HDMI source (e.g., camera, computer) to the HDMI Input port.
• HDMI Output: Connect your HDMI display, monitor, or recording device to the HDMI Output port.

5.2 SDI Input/Outputs

• SDI Input: Connect your (3G/HD/SD)-SDI source to the SDI Input port.
• SDI Outputs: The unit provides four (3G/HD/SD)-SDI outputs. These can be used for distribution or as converted outputs. Output pair 1 can be configured to either copy the SDI input or mirror output pair 2.

5.3 USB Port

The USB Mini-B port is used for connecting the MD-HX to a computer for advanced control via software and for firmware updates. It can also supply power to the unit.

6. Operating Instructions

6.1 Control System

The MD-HX features an integrated LCD screen and four control buttons (two arrow buttons, BACK, and ENTER). Use the arrow buttons to navigate through menu options, ENTER to select, and BACK to return to the previous menu or exit a setting.

6.2 Conversion Modes

The MD-HX offers 14 distinct conversion modes, allowing for flexible signal routing and transformation. These modes include various combinations of HDMI to SDI, SDI to HDMI, and cross-conversion with scaling. Examples include:

• SDI In to HDMI and SDI Out
• HDMI In to SDI Out and SDI In to HDMI Out
• Scaled SDI In to HDMI and SDI Out

Refer to the on-screen menu for a complete list and detailed descriptions of each mode.

6.3 Scaling and Frame Rate Conversion

The unit's powerful scaler can convert input signals to various resolutions and frame rates. This is crucial for matching different equipment requirements in a production chain. Access these settings through the LCD menu to select desired output formats.

6.4 Image Manipulation

The MD-HX supports horizontal and vertical image flipping. This feature is particularly useful for applications such as teleprompters or specific display orientations. These options are configurable within the scaler settings.

6.5 Audio Routing

The audio pairs embedded within the SDI and HDMI signals can be independently routed and rearranged to meet specific audio requirements for your production.

6.6 Output Behavior on Disconnection

The MD-HX can be configured to output a specific color (e.g., red, green, blue) when an input signal is lost or a cable is disconnected. This provides immediate visual feedback for troubleshooting signal paths.

7. Maintenance

• Keep the unit clean and free from dust using a soft, dry cloth.
• Ensure adequate ventilation, especially around the heat sink on the bottom of the unit, to prevent overheating.
• Avoid exposing the MD-HX to extreme temperatures, direct sunlight, or moisture.
• Regularly check cable connections for wear and tear.

8. Troubleshooting

8.1 No Signal or Incorrect Output

• Verify all HDMI, SDI, and power cable connections are secure.
• Check the input and output settings on the MD-HX via the LCD menu to ensure they match your source and destination devices.
• Confirm that the input source is active and output device is correctly configured.
• Perform a factory reset to revert to default settings, then reconfigure.

8.2 Power Issues

• Ensure the power adapter is correctly connected to the locking DC socket and the power outlet.
• Verify the power adapter is supplying the correct voltage (+5V to +32V DC).
• If using USB power, ensure the USB source provides sufficient power.

8.3 Overheating

• Ensure the unit is placed in an area with good airflow and that the ventilation grilles are not obstructed.
• Avoid operating the unit in excessively hot environments.

9. Specifications

10. Warranty and Support

For detailed warranty information, technical support, and service inquiries, please visit the official Decimator website or contact their customer service department. Keep your purchase receipt as proof of purchase for warranty claims.