Hardware - modification of Scorpion to connect additional drives C and D.

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               ║ Iron ║
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 (c) Ruslan Nadtochiy (812/08.21)

 Some computer users
Scorpion in the process of working on his car
have already felt the need to connect to
additional drives C: and D:, not pre-
provided for by the design. Using below
given instructions at minimum ma-
you can spend
simple modification of your computer. For
for this you will need any de-chip
encoder with inverse outputs and open
collector, for example, IDS or ID10. Desire-
It is important that these microcircuits are from K155,
KR5Z1 or KR1531 series. Using other
hy series, such as K555, KR1533, less
preferably, due to their comparative
low load capacity.

   First of all, cut the paths going
to pins 10 and 12 of the drive connector. When
In this case, pay attention to the numbering of the con-
beats: on one side there are four-
numeric, and on the other - odd, and the input is 3 mic
Connect circuits D65 (K5SSTM9) to 15
output of the D20 (Z-80) processor.

  Below are two instructions for wiring
ke decoder chips. When connected
additional drives, you can manually
be used by any of them, depending
from the selected element base.

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               ║КР1SSИDS║
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1. Connect pins 2,3 and 8 to ground
  computer, and pin 16 to +5 volts.

2. Apply a signal to input 3 from pin 2 of D65
  (K5SSTM9), and to input 13 - a signal from the output
  yes 5 D65 (K5SSTM9). Connect input 1 to 2
  output D68 (K1SSLA13).

3. Outputs 4,5,6 and 7 (these are DSЗ, DS2, DS1 and
  DSO respectively) connect with the corresponding
  the corresponding contacts of the disk drive connector
  yes:

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║07 output m/s - 10 pin connector (DSO)║
║06 m/s output - 12 pin connector (DS1)║
║05 output m/s - 14 pin connector (DS2)║
║04 output m/s - 06 pin connector (DSЗ)║
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              ║KR1SSID10║
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1. Connect pins 8 and 12 to the common ground
  computer, and pin 16 to +5 volts.

2. Apply a signal to input 14 from pin 2 of D65
  (K5SSTM9), and to input 15 - a signal from the output
  yes 5 D65 (K5SSTM9). Connect input 13 to
  2 pin D68 (K1SSLA13).

3.Outputs 5,6,7 and 9 (these are DSO, DS1, DS2 and
  DSЗ accordingly) connect with the corresponding
  the corresponding contacts of the disk drive connector
  yes:

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║05 m/s output - 10 pin connector (DSO)║
║06 output m/s - 12to the contact connector (DS1)║
║07 output m/s - 14 pin connector (DS2)║
║09 output m/s - 06 contact connector (DSZ)║
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