Appendix A: Troubleshooting Guide52Appendix A: Troubleshooting GuideNow, next time you get a blue screen, look at it. See if the crash occurred inecho1394.sys; if it did, it may be something we need to fix.Restart your computer and find the most recent .dmp file – this is the memorydump. It’s probably in a folder called “minidump” under your main Windowsfolder.Zip up this .dmp file and send it to techsupport@echoaudio.com along with adescription of how it happened.Problem: When you connect a bus powered FireWire device to your AudioFireproduct it does not receive power.Solution: Your AudioFire product does not pass power from the computer on itsFireWire connector. Use a FireWire device with an external power adapter.Problem: You are unable to get your DAT recorder to recognize the S/PDIFoutput from AudioFire 2, AudioFire 4 or AudioFire 8.Solution: Digital information is transmitted in either of two modes, “professional”or “consumer.” The professional mode is usually implemented in devices that arelikely to be used in professional recording environments, whereas the consumermode is commonly implemented on equipment designed for home use in theconsumer market. The primary difference between the two modes is in theimplementation of the SCMS copy protection bit, which, in the consumer format,prevents the user from making digital copies of a digital copy. In most professionalequipment, this copy-protection bit can be turned off or on according to the user’sneeds. In consumer products, the SCMS bit is always enabled.Unfortunately there is no way for the transmitting device to automatically detectwhich format the receiving device is able to accept. If you have a DAT deck that isnot able to read the S/PDIF output from your AudioFire, chances are it istransmitting in the mode that the deck is not equipped to handle.