Azimuth Waveform; Index Alignment Oscilloscope Settings; Index Alignment Check Or Adjustment - NEC FD1165 Maintenance Manual

a. Insert the
carriage to track 76,
b. Load the heads.
c. Compare the waveform in Figure 5-4 with the waveform
that is displayed on the oscilloscope.
d. If the waveform is not within specifications,
place the carriage assembly.
5.4.3

Index Alignment Check or Adjustment

Set the oscilloscope to the settings in Table 5-5, then use
the following procedure to check or adjust the Index align­
ment.
Table 5-5
alignment flexible
Figure 5-4

Azimuth Waveform

Index Alignment Oscilloscope Settings

5-7
disk and step
SPECIFICATION
B> A ANDC> D
the
re­