#SCSI help needed
3 messages in this thread
Trying to connect an NEC CD-ROM drive to an A2000 using a GVP Impact
A2000-SCSI-8 Rev 1 board and AsimCFDS software. The GVP comes up as
"defective" on the A2000 red warning screen. The board has no added memory
simms. I do not know where jumpers J1, J2, J3, J9 and CN11 should be
positioned. I was also told by the boards owner (its on loan) to pull two ICs
U30 (GVP1.0 EVEN 1A3B) and U29 (GVP V1.0 ODD 6909).
Does anyone know how this GVP board should be configured to work as a SCSI
interface?
Also NEC CD-ROM has a row of dip switches numbered 1 through 6 which set the
SCSI unit number. I assume that all swithches off is device 0 and that
throwing each switch in turn takes you from 1 through 6 providing the seven
number assignments. If anyone has documentation for a model CDR-73 and could
confirm how unit number is set, I'd be grsateful.
International What-A-Guy,
Jim MacAllister
>>I assume that all switches off is device 0
Yep.
>>throwing each switch in turn takes you from 1 through 6…
Stop being logical! We're talking about computers! <g>
I had a NEC and trashed it (well, it stopped working, _then_ I trashed it), so
I don't have the docs anymore. The following is from the Chinon CDS-525; try
these.
(You don't use all six DIP switches for ID, just the first three or last
three…it's the last three on the Chinon, can't remember on the NEC).
ID NUMBER SWITCH 1 SWITCH 2 SWITCH 3
0 Off Off OFF
1 Off Off On
2 Off On Off
3 Off On On
4 On Off Off
5 On Off On
6 On On Off
7 On On On
Hope this helps!
Nick
"Nevertheless, I'd rather use an Amiga."
Thanks Nick for the DIP switch settings for SCSI ID setting. Sorry about
talking so long to respond.
International What-A-Guy,
Jim MacAllister