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