DOREMiDi MIDI To LTC Box (MTC-10) User Manual

1. Introduction

The DOREMiDi MIDI To LTC Box (MTC-10) is a dedicated device designed for the conversion and synchronization of MIDI Time Code (MTC) and SMPTE LTC Time Code. It facilitates precise time synchronization between MIDI audio equipment, lighting systems, and other LTC-compatible devices. This unit features standard USB MIDI, MIDI DIN, and LTC interfaces, enabling versatile connectivity for various professional and home studio setups.

Key functionalities include:

• Conversion between MIDI Time Code and SMPTE LTC Time Code.
• Synchronization of MIDI devices with LTC devices.
• Compatibility with all MIDI Time Frame formats.
• Selectable time code input sources.
• Firmware upgrade capability for future enhancements.

2. Product Overview

The MTC-10 features a compact design with clearly labeled ports and indicators for ease of use. Understanding the layout of the device is crucial for proper operation.

Image: Top-front view of the DOREMiDi MTC-10 MIDI To LTC Box, showing the DOREMiDi logo, model number, FPS indicators, SOURCE indicators, and LTC IN/OUT ports.

Image: Diagram illustrating the numbered ports and indicators of the MTC-10 for easy identification.

2.1. Front Panel

• 1. LTC IN: 3-pin XLR input for receiving SMPTE LTC Time Code.
• 2. LTC OUT: 3-pin XLR output for sending SMPTE LTC Time Code.

2.2. Top Panel

• FPS Indicators (6): LEDs indicating the frames per second (24, 25, 30DF, 30) of the detected or output time code.
• SOURCE Indicators (7): LEDs indicating the currently selected time code input source (USB, MIDI, LTC, SW).
• SW Button (8): Button to cycle through and select the time code input source.

2.3. Rear Panel

Image: Top-rear view of the DOREMiDi MTC-10, highlighting the USB, MIDI OUT, and MIDI IN ports.

• 3. USB: USB-B port for connecting to a computer (for USB MIDI functionality and power) or a 5VDC power supply.
• 4. MIDI OUT: Standard 5-pin DIN MIDI output for sending MIDI Time Code.
• 5. MIDI IN: Standard 5-pin DIN MIDI input for receiving MIDI Time Code.

3. Setup

Follow these steps to set up your DOREMiDi MTC-10 for operation.

Image: Diagram showing typical connections for the MTC-10, including USB, MIDI, and LTC cables.

1. Power Connection: Connect the MTC-10 to a power source using the USB-B port (3). This can be a computer's USB port or a standard 5VDC USB power adapter. The device will power on automatically.
2. MIDI Device Connection:
   • To receive MIDI Time Code from a MIDI device or computer, connect its MIDI OUT to the MTC-10's MIDI IN (5).
   • To send MIDI Time Code to a MIDI device, connect the MTC-10's MIDI OUT (4) to the MIDI IN of your MIDI device.
3. LTC Device Connection:
   • To receive SMPTE LTC Time Code, connect the LTC output of your device to the MTC-10's LTC IN (1).
   • To send SMPTE LTC Time Code, connect the MTC-10's LTC OUT (2) to the LTC input of your device.
4. Initial Check: Once all connections are made, observe the FPS and SOURCE indicators on the top panel. The device should automatically detect an incoming time code signal and illuminate the corresponding SOURCE and FPS LEDs.

4. Operating Instructions

The MTC-10 is designed for straightforward operation. The primary function involves selecting the input time code source and observing the output.

4.1. Selecting Time Code Source

The MTC-10 can receive time code from USB, MIDI, or LTC inputs. To select the active input source:

• Press the SW Button (8) on the top panel. Each press will cycle through the available input sources: USB, MIDI, LTC.
• The corresponding SOURCE Indicator (7) (USB, MIDI, or LTC) will illuminate to show the currently selected input.
• Ensure the correct source is selected for your setup to ensure proper time code reception and conversion.

4.2. Understanding FPS Indicators

The FPS Indicators (6) display the frame rate of the detected or generated time code. These include:

• 24: 24 frames per second (film standard).
• 25: 25 frames per second (PAL video standard).
• 30DF: 30 frames per second, drop-frame (NTSC video standard).
• 30: 30 frames per second, non-drop-frame (NTSC video standard).

The MTC-10 automatically detects the incoming frame rate and illuminates the corresponding LED. The output time code will match the detected input frame rate.

4.3. Synchronization Process

Once the input source is selected and a valid time code signal is detected, the MTC-10 will convert and output the time code to the other interfaces. For example, if LTC is selected as the source, the incoming LTC time code will be converted to MTC and sent out via the MIDI OUT and USB MIDI ports. Conversely, if USB or MIDI is selected as the source, the incoming MTC will be converted to LTC and sent out via the LTC OUT port.

5. Maintenance

To ensure the longevity and optimal performance of your DOREMiDi MTC-10, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the exterior of the device. Avoid using liquid cleaners, solvents, or abrasive materials, as these can damage the finish or internal components.
• Environment: Operate and store the device in a dry environment, away from direct sunlight, extreme temperatures, and high humidity.
• Firmware Updates: Periodically check the official DOREMiDi website for available firmware updates. Firmware updates can introduce new features, improve performance, or resolve known issues. Follow the instructions provided on the website carefully when performing an update.

6. Troubleshooting

If you encounter issues with your MTC-10, refer to the following common problems and solutions:

7. Specifications

The following are the technical specifications for the DOREMiDi MTC-10 MIDI To LTC Box:

8. Warranty and Support

The DOREMiDi MTC-10 comes with a manufacturer's warranty. For specific details regarding warranty coverage, duration, and terms, please refer to the warranty card included with your product or visit the official DOREMiDi website. For technical support, troubleshooting assistance beyond this manual, or inquiries about firmware updates, please contact DOREMiDi customer service through their official channels.