CDR-1000 (250-1077) CD Audio with the Sound Blaster Pro Faxback Doc. # 2718 If you have a CDR-1000 and a Soundblaster Pro Board in your TANDY Computer and are not able to hear CD audio, you may have the 4 pin Audio Cable from the rear of the CD-ROM plugged directly into the Soundblaster Pro's AUDIO IN Jack. This will not work. The 4 pin cable from the CDR-1000 must be connected to it's own interface board Audio Connector. Then cable, (Catalog # 42-2475) must be run externally from the RCA jacks on the CD interface board to the LINE IN jacks on the Soundblaster Pro board. (jlc-11/17/93)