Lo Mugo
I'm not sure if this card really uses the "conventional" scsi.device.
Yes it does, a WD33C93, the same as in the A2090.
I don't know too if it have any termination onboard, for the controller end.
I am not aware of a single CDTV SCSI card that does, they are resistor packs that are either black or yellow and have nine or ten pins.
I would like to know too if the onboard 50Pin connector and the 25Pin external one are in opposite ends (i mean, the controller between them both).
No, the controller is first, then the 50 pin internal header and then the 25pin D-Sub.
One of my drives (the 1GB 50Pin one) is really old, HP branded, and i couldn't find any jumper configurations info on the web. Same for the 80Pin one, Seagate branded, but the adapter have all the jumpers that i need, and also, connectors for resistor packs for termination, that i don't have.
Could this problem be related to termination ?
Hmm, not a good choice of drives there.
Yes, it sounds like a termination problem to me, do you have any 50 pin SCSI drives in any other computers? a 50pin drive with good jumpers is by far the best.
Do someone knows if an external terminator, plugged in the 25Pin external connector would be enough ?
No, the two terminators would then be on the one end of the cable chain, you need to either put an external SCSI harddrive in between the two or have a terminator attached to the 50 pin cable.
I suppose you could techincally get away with an external terminator and a drive connected to the 50 pin internal interface but the cable between the drive and card would need to be VERY short, 10cm-ish to be safe.
I would be very grateful if someone can enlighteen me with any info about this interface. I can't find any info regarding these issues in the web as well.
I actually have the scematics to two CDTV SCSI interfaces. (I run
www.cdtv.org.uk) If you have any questions please feel free to PM me here or e-mail me.
