USB Midi Controller shuts down???

Discussion in 'Converters / Interfaces' started by munkee, Aug 22, 2003.

  1. munkee

    munkee Guest

    I use the Evolution UC 33 Midi Controller, It connects via USB. It also is powered through the USB port. I have noticed on several occasions that it will stop working and the drivers dissapear. Unless I restart the PC or Unplug then replug the USB cable. Then the device appears again.

    I have unchecked the box in the USB driver to allow Windows to shut it down. So I know that isn't the issue...I use Win XP Pro SP1.

    Do you think this is a XP issue? A UC 33 Hardware issue? A UC 33 Driver issue?

    The device itself has a lit screen to show what preset is on. This screen always stays on even when the drivers go away.
    Could there be some Midi Message that messing up the drivers???(See other post)
  2. Opus2000

    Opus2000 Well-Known Member

    Apr 7, 2001

    WTF? Sounds like that controller is just not your cup o tea for fun?!!!

    Is anyone else with that controller having that much fun as well?

    Couple of things could be happening here...

    A: the device is not pulling/getting the 5 volts from the USB needing to run the device properly. This could be a system issue or the device issue.

    USB is a 5 volt line for powering devices.

    B: The drivers suck or there is some conflict going on within the system causing them to be knocked off.

    Personally I used to have that issue with Win2k and never WinXp.

    In order to help you more I need to know if there are any IRQ issues or any other USB devices. What type of USB ports are you using?

    Opus :D
  3. bgavin

    bgavin Guest

    USB system board power providing capabilities are marginal at best. Consider getting an active USB hub (Belkin, etc) that is powered from 120v wall power. This hub will provide sufficient power to high demand USB devices.

    Non-Intel chipset boards have always had more USB problems. Older VIA and ALi boards, especially. If your USB has never operated correctly, this could be a problem. If it was fine, and is now broken, I doubt the chipset is the cause of it.
  4. munkee

    munkee Guest

    Thanks for the info! The device is plugged directly into the ASUS P4533 MB. The properties states it needs 250mA of power. My manual states NOT to plug into USB and use a Power Supply. The IRQ all report "OK". The only other thing that is plugged into another USB Port is a Belkin USB Hub...and it only has a couple of USB Dongles plugged into it.

    When this incident happend I was experiancing a MIDI CC overload. Since the UC 33 is a Midi device, could a overload have caused the Drivers to fail?

    I notice the company that makes the UC 33 was just bought out by M Audio. Therefore, I hope they have better driver support.
  5. bgavin

    bgavin Guest

    Get a powered hub.

    From the USB Specifications:

    A one unit load is 100 mA. Your unit is spec'ed at 250 mA, but does not specify current draw at power up.

    I've been down the USB road before, and find a powered hub is the solution to many USB problems.
  6. Opus2000

    Opus2000 Well-Known Member

    Apr 7, 2001
    I can't say that a USB hub will solve all problems.

    Typically USB problems stem from driver issues or the unit itself.

    Sometimes the motherboard itself may have problems is one of the capacitors around the power area is leaky or has failed.

    Since he has had problems on previous systems with other USB peripherals( I know Munkee personally and have helped him in the past with these issues)!

    USB hubs on certain devices don't translate well, especially USB AUDIO devices as the data can possibly be cut off due to going through a hub.

    Since this is primarily a MIDI controller device it should be ok as MIDI data is not intensive in any way.

    Munkee, have you contacted their tech support to see if they have heard of this issue?

    Opus :D
  7. munkee

    munkee Guest

    Yes I have been emailing there support. They always ask if I have the latest drivers which I do. The MAudio takeover was just announced last week, so who knows what going on inside now.
  8. kinetic

    kinetic Guest

    Could be an XP issue. I have an ASUS A7N8X board which has 6 USB ports. I also use a powered USB Hub. I'm running XP Pro. Occasionally I have issues with a USB flash drive, where, after a period of non-use the drive number still appears in explorer but the system reports there is nothing on the drive. I have to reboot to correct this situation, despite all the other USB devices and the USB Hub still being fully functional. My other 98SE system never experiences the same problem.
  9. munkee

    munkee Guest

    PC was on most of the day today and No problems! I also made sure that windows would not shut down power of the other USB ports, don't know if that made a difference. :c:

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