DOREMIDI DUH-10 Quick Start Manual - Page 4
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7. Questions & Answers
1) Question: Can the USB HOST interface supply power to USB MIDI instruments?
Answer: It can supply power, but pay attention to whether the power input power of "DC
IN" can meet the working requirements of USB MIDI instruments.
2) Question: The USB HOST interface does not work.
Answer: Please follow the steps below:
Make sure DUH-10 is powered normally: after connecting "DC IN", the indicator
light flashes 3 times.
Ensure that the instrument can work normally: connect the USB port of the
instrument to the computer, and the computer can recognize the MIDI device.
If you use the USB HOST interface to power the instrument, please ensure that the
DC IN power supply can meet the work of the USB MIDI instrument.
Try to supply power to the product through "DC IN" first, and then connect to the
instrument through "USB HOST" to see if the indicator light of "USB HOST" lights
up.
If the "USB HOST" indicator is still not on, or the MIDI message cannot be
transmitted after it is on, please contact customer service to solve it.
3) Question: After the Hi-Speed USB HOST is connected to a USB hub, it cannot work, or
there are a few USB ports that can work.
Answer: When the Hi-Speed USB HOST is connected to a USB hub, it only supports
hubs with up to 4 USB ports. If you connect a USB hub with more USB ports, the
product may not work or part of the hub's USB may not work. It is recommended to use
the USB hub officially recommended by DOREMiDi.
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: [email protected]