Atari 1050 Alignment procedure#

  • Switch on drive with no disk
  • shortcut TP7 and TP8
  • connect scope gnd to TP17
  • connect scope probe to TP 10, adjust C36 to 125 KHz
  • connect scope probe to TP 9, adjust VR3 to 250 ns pulse width
  • connect scope probe to TP 11, adjust VR5 to 1 us pulse width
  • remove shortcut between TP7 and TP8

(I hope I didn't mix up TP9 and TP11 values, so please check for the smaller pulse width first and verify)

ep, 09.06.2002

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« This page (revision-1) was last changed on 27-Dec-2010 14:49 by Carsten Strotmann