DOREMIDI MTC-20 User manual

1. Introduction
LTC-MIDI Timecode Sync (MTC-20) is a device designed by DOREMiDi to synchronize
MIDI timecode and SMPTE LTC timecode. It has the functions of timecode generation,
timecode conversion and timecode reader. MTC-20 has standard USB MIDI interface, MIDI
DIN interface and LTC interface, which can be used for time code synchronization between
computers, MIDI device and LTC device. At the same time, MTC-20 has a display screen
that can display the current time code information.
2. Appearance
❶LTC IN: Standard 3Pin XLR interface, through the 3Pin XLR cable, connect the device
with LTC output.
❷LTC OUT:Standard 3Pin XLR interface, through the 3Pin XLR cable, connect the device
with LTC input.
❸USB: USB-B interface, with USB MIDI function, connected to a computer, or connected
to an external 5VDC power supply.
❹MIDI OUT: Standard MIDI DIN five-pin output interface, output MIDI time code.
❺MIDI IN: Standard MIDI DIN five-pin input port, input MIDI time code.
❻Display screen: OLED display screen, showing the working status of MTC-20.
❼Knob: Knob with button function, configure the work of MTC-20 by rotating and clicking.

3. Product Parameters
Name
Description
Model
MTC-20
Size (L xW x H)
88*79*52mm
Weight
180g
Timecode Generator
Supports generating timecode in 24, 25, 30DF, 30 frame formats
LTC Compatibility
Compatible with SMPTE LTC standard audio signal
USB Compatibility
Compatible with Windows, Mac, iOS, Android and other systems, plug and
play, no driver installation required
MIDI Compatibility
Compatible with all MIDIdevices with MIDI standard interface
Operating Voltage
5VDC, supply power to the product through the USB-B interface
Working current
About 40mA
Firmware upgrade
Support firmware upgrade
4. Steps for usage
1. Power supply: Power MTC-10 through the USB-B interface with a voltage of 5VDC, and
the power indicator will light up after the power is supplied.
2. Connect to the computer: Connect to the computer through the USB-B interface.
3. Connect the MIDI device: Use a standard 5-Pin MIDI cable to connect the MIDI OUT of
the MTC-10 to the IN of the MIDI device, and the MIDI IN of the MTC-10 to the OUT of
the MIDI device.
4. Connect LTC devices: Usestandard 3-Pin XLR cable to connect LTC OUTof MTC-10 to
LTC IN of LTC devices, and LTC IN of MTC-10 to LTC OUT of LTC devices.
5. Set the timecode input source
By clicking the knob, you can select different setting items, and rotating the knob to
change the parameters of the setting items. When MTC-20 is used as a time code
converter/reader, please select the correct time code input source "USB/MIDI/LTC"
according to the time code input port. When the MTC-20 is used as a time code generator,
please select "GEN". The following are descriptions of the 4 timecode input sources:
Souce
Display
Description
USB
00:00:00:00
FPS:30DF OFF
SOURCE: USB
Timecode input from USB, MIDI OUT will output MIDI
timecode, LTC OUT will output LTC timecode.
USB
LTC OUT
MIDI OUT

MIDI
00:00:00:00
FPS:30DF OFF
SOURCE: MIDI
The time code is input from MIDI IN, USB and MIDI OUT will
output MIDI time code, and LTC OUT will output LTC time
code.
MIDI IN USB
LTC OUT
MIDI OUT
LTC
00:00:00:00
FPS:30DF OFF
SOURCE: LTC
Timecode input from LTC IN, USB and MIDI OUT will output
MIDI time code, and LTC OUT will output LTC time code.
LTC IN USB
MIDI OUT
LTC OUT
GEN
00:00:00:00
FPS:30DF OFF
SOURCE: GEN
Timecode is generated by MTC-20, MIDI OUT, USB and LTC
OUT output timecode.
Hours, minutes and seconds can be set;
Time frame format can be set: support 24, 25, 30DF, 30
MTC-20 USB
MIDI OUT
LTC OUT
(Note: When the timecode input source is "USB/MIDI/LTC", the timecode will be input externally,
so the timecode and time frame cannot be set.)

5. Firmware upgrade operation
Press and hold the knob to power the product, then release the knob, the product will
enter the upgrade mode, please use the official firmware upgrade tool to upgrade the
product. (If there is a firmware update, please pay attention to the official website
notification)
Upgrade...

6. Precautions
1. This product contains a circuit board.
2. Rain or immersion in water may cause the product to malfunction.
3. Do not heat, press, or damage internal components.
4. Non-professional maintenance personnel are not allowed to disassemble the product.
5. The working voltage of the product is 5VDC, using a voltage lower or exceeding this
voltage may cause the product to fail to work or be damaged.
6. Q&A
Question: LTC time code cannot be converted to MIDI time code.
Answer: Please make sure that the format of the LTC time code is one of 24, 25, 30DF, and
30 frames; if it is of other types, time code errors or frame loss may occur.
Question: Can MTC-20 generate time code?
Answer: Yes, please select "GEN" as the timecode input source.
Question: USB cannot be connected to the computer
Answer: After confirming the connection, whether the indicator light flashes.
Confirm whether the computer has a MIDI driver. Generally speaking, the computer comes
with a MIDI driver. If you find that the computer does not have a MIDI driver, you need to
install the MIDI driver.
Installation method: https://windowsreport.com/install-midi-drivers-pc /
If the problem is not resolved, please contact customer service.
Manufacturer: Shenzhen Huashi Technology Co., Ltd.
Address: Room 910, Jiayu Building, Hongxing Community, Songgang Street, Baoan District, Shenzhen,
Guangdong, China
Post Code: 518105
Customer Service Email: [e-mail]