ProMotion and ProTuner cards

Is anyone familar with these cards? Does anyone have docs for them? I picked up some old 486 computers that have these cards in them. Both of the cards are made by IEV International. I've searched the net and found them mentioned but no real information. I've gotten the ProTuner card to work somewhat. It's TV tuner card and it has a VHF RF input and outputs audio and composite video through two RCA sockets. So far I haven't had any luck with the ProMotion card. I can bring up a screen that looks like it should display video on but I can't get anything to display on it. The ProMotion card is a full length card that is jumperd to the feature connector on the VGA display card. On the back, the ProMotion card has a RCA socket marked video, a S-video connector and a DB-9F socket and what looks like a VGA port. I connected a video source to the RCA video port and tried it but nothing appears in the displayed window. I can plug a VGA monitor into the VGA(?) port and it looks like it has video but the monitor can't sync on it. Does anyone know what exactly this port and the DB-9 port are for? Joe