Cats Eye Pattern - Tandon TM-100-1 Operating And Service Manual

TIME SCALE • 20 ms/ DIV.
Figure 2-5
Cats Eye Pattern
NOTE
EQUAL AMPLITUDE
ION TRACK 16)
The 75% figure is for use with an alignment diskette that has been
verified against a standard alignment diskette.
2.2.1.9 Step the disk drive to Track 00 ; then, step it back to Track 16.
2.2.1 .10 Reverify the Cats Eye pattern.
2.2.1.11 Step the disk drive to Track 26 or a higher track; then, step it back to Track 16.
2.2.1.12 Reverify the Cats Eye pattern.
2.2.1.13 Switch to Head 01, the upper magnetic head.
2.2.1 .14 Read Track 16 to verify the alignment of the upper magnetic head.
2.2.1.15 Verify the Cats Eye pattern .
2.2.1.16 Step the disk drive to Track 00; then, step it back to Track 16.
2.2.1 .17 Reverify the Cats Eye pattern.
2.2.1.18 Step the disk drive to Track 26 or a higher track; then, step it back to Track 16.
2.2.1.19 Reverify the Cats Eye pattern.
2.2.1.20 If all of the checks listed above verify or reverify, the Cats Eye alignment of the magnetic head is
acceptable.
2.2.1.21 If any of the checks listed above does not meet the conditions stated in Section 2.2.1 .8, the corre-
sponding magnetic head must be adjusted .
2-5