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INTERFACE LAYOUT FOR THE VORTEX SYSTEM 2000 HARD DRIVE.

The Vortex System 2000 hard drive unit was imported from Germany and it would seem that SCA where asked to produce an interface unit so the drive could be connected to the PCW8256/8512/9512.
These SCA Professional Series ProDisk interfaces came with or without RAM, and below is a diagram of the chip layout, with below this, the chip numbers for those of you wishing add memory or remove it so a large Ram Pack can be utilised.
Should anyone own one of these interfaces containing more than 512K of RAM please forward details of the chips or a clear picture of the layout so I may publish for the benifit of others, also I would welcome details of a supplier of replacement chips.
Vortex interface layout
KEY TO THE ABOVE DIAGRAM.
INTERFACE FITTED WITH 512K OF RAMINTERFACE WITHOUT RAM
  1. ST 99027 GAL16V8-25HB1
  2. ST 99027 GAL16V8-25HB1
  3. ST 99030N T74LS670B1
  4. TOSHIBA 9014H 74HCT245AP
  5. ST 98939N T74LS367AB1
  6. ST 99030N T74LS670B1
  7. ST 99031 T74LS257AB1
  8. ST 99027 GAL16V8-25HB1
  9. KM44C256AP-10 005
  10. KM44C256AP-10 005
  11. Empty Socket
  12. Empty Socket
  13. KM44C256AP-10 005
  14. KM44C256AP-10 005
  15. ST 99031 T74LS257AB1
  1. ST 99027 GAL16V8-25HB1
  2. Empty Socket
  3. Empty Socket
  4. TOSHIBA 9014H 74HCT245AP
  5. ST 98939N T74LS367AB1
  6. Empty Socket
  7. Empty Socket
  8. Empty Socket
  9. Empty Socket
  10. Empty Socket
  11. Empty Socket
  12. Empty Socket
  13. Empty Socket
  14. Empty Socket
  15. Empty Socket

My thanks go to Stephen Kershaw for details of his SCA ProDisk Interface which was supplied without RAM.

A User Manual for this Hard Drive is available on my Web-CD.

© J.R.P.King.
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