User manual M-AUDIO AD-20B

[. . . ] 9 Input Level Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Digital Copy-Protect Jumpers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 JP1 Jumper Assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Remove the Flying Calf and power adapter from the box and plug one end of the power adapter into the Flying Calf's power jack. With the Flying Calf's power button in the "out" position (power off), plug the other end of the power adapter into a wall socket or power strip. Verify that the Flying Calf and any other devices you plan to connect to it, are powered off. For example, a good quality video dubbing cable has these characteristics. 5 Typical Setup - Fig. 2 In 4 In 3 In 2 In 1 Line Out Left Right Mixer S/PDIF In DIGITAL AUDIO CARD (Inside PC) S/PDIF Out Analog In Right Analog In Left FL YING Calf A/D 6 After all connections are made, power up the Flying Calf by pressing the power button on its front panel. IMPORTANT: Before powering up the Flying Calf, turn off or turn down any amplifiers, mixers, or audio converters connected to the Flying Calf's S/PDIF output. Since it may take several milliseconds for the Flying Calf to output valid S/PDIF, you may hear a slight "pop" or "buzz" sound while powering up if you are monitoring the S/PDIF out . A typical configuration in which a Flying Calf would be used includes a Calf, a PC-based digital I/O card, a mixer and an amplifier/sound system. Such a configuration could be setup as follows: 1. ) the stereo line-level audio outs of the mixer goes into the analog ins of the Calf, 2. ) the S/PDIF out of the Calf goes to the S/PDIF in of the digital audio card, 3. ) another audio out of the mixer may go to an amplifier/sound system or alternately to an audio out of the audio card can go to an amplifier/sound system. Operation The Flying Calf A/D converter accepts analog audio from the left and right Analog In jacks. These 1/4" audio input jacks expect unbalanced (tip-sleeve) signals. The analog signals pass through some analog buffers to the A/D converter, where the audio is digitized at the current sample rate. The A/D converter then drives the Input Level displays and sends the digitized audio data to the S/PDIF transmitter. The transmitter formats and outputs the actual S/PDIF data stream through a transformer to the S/PDIF Out jack. The A/D converter always digitizes the analog data at the sample rate that is set from the front panel of the Flying Calf. When the Sample Rate select button is in the "out" position, the sample rate is 44. 1 kHz. If the button is in the "in" position, the sample rate is 48 kHz. The current sample rate is always indicated by the front panel Sample Rate LED's. 7 The level of the analog signal that goes into the Flying Calf should be adjusted for optimum A/D sampling quality. For best conversion, the input signal should have enough amplitude to take advantage of nearly all 24 bits of A/D resolution. In other words, peak levels of the incoming audio signal should be loud enough to approach the A/D converter's maximum acceptable (full-scale) signal level. The Flying Calf front panel A/D Input Level indicators aid in this adjustment. Set the level of the audio input signal, using a mixer or preamplifier device, so that you light as many level indicator LED's as possible without lighting the red Clip LED's. When the Clip LED's light, the audio signal is being "clipped" at the maximum allowable input level of the A/D converter. [. . . ] In the event that MIDIMAN determines that the product requires repair because of user misuse or regular wear, it will assess a fair repair or replacement fee. The customer will have the option to pay this fee and have the unit repaired and returned, or not pay this fee and have the unit returned unrepaired. The remedy for breach of this limited warranty shall not include any other damages. MIDIMAN will not be liable for consequential, special, indirect, or similar damages or claims including loss of profit or any other commercial, damage, even if its agents have been advised of the possibility of such damages, and in no event will MIDIMAN's liability for any damages to the purchaser or any other person exceed the price paid for the product, regardless of any form of the claim. [. . . ]