M-Audio Fast Track C400 User's Guide download pdf (Page 41)

Appendix A: Troubleshooting 37

appendix a

Troubleshooting

Fast Track C400 has been designed and tested

under a wide range of systems and operating

conditions to give you high performance and

professional quality audio. However, there is a

virtually limitless number of operating scenarios

that could affect your system’s performance. Al-

though this chapter cannot cover all issues you

may encounter, it does offer some suggestions

for dealing with common problems.

As a general rule, we recommend that you avoid

connecting too many devices via USB. The USB

bus is a dependable protocol that is ideally

suited for digital audio. Nevertheless, it is impor-

tant to remember that audio and multimedia

streaming can place considerable demands on

your processor and the USB bus.

Check Your Connections

If you are having trouble getting audio in or out

of your Fast Track C400, check the following:

 Make sure the device is connected via USB at

both ends, and that the computer’s USB port

is providing sufficient bus power (the blue

Power LED on Fast Track C400 should be illu-

minated).

 Make sure your music software is receiving au-

dio signal. If you find that your recording ap-

plication is not receiving a signal:

• Check your connections and cables to

make sure everything is plugged in cor-

rectly.

• Try using a different USB cable or USB port

on the host computer.

• Check that you have the correct input se-

lected using the Input Selector button lo-

cated on the top panel of the interface.

• Check the Signal/Clip indicators for each

channel to see if an input signal is present.

• If your condenser microphone requires

phantom power, make sure the Phantom

Power switch is set to the “In” position,

and that the front panel Phantom Power

LED (48V) is illuminated.

For more troubleshooting tips, visit the

Knowledge Base at www.m-audio.com/faq.

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