I have this setup which came to me second hand and it works otherwise, but the extension box is dead. It has a 78M05 regulator inside the extension box with no voltage going into it. The fuse is ok.
The box is connected to the sound card inside the PC with a 44 pin special D-connector. According to the box backplate, this is a "Audigy Extension AUD_EXT)
There are some hefty fuses on the sound card itself too, but they also tested OK.
Anyone have any info or ideas?
Thanks.
Jan Finland