Fig. 5.3 Alignment Waveform (DAD)

5.6 Azimuth Verification

(1) insert an alignment diskette. Seek to the track specified in the azimuth column of Table 4.1.
(2) Set the oscilloscope in the same conditions as in 5.3., and set horizontal deflection to 2ms/div (DAD) or 0.5 ms/div (CE).
(3) Measure as shown below.
(4) Confirm that the measured value meets the specifications in the azimuth column of Table 4.1.

Fig. 5.4 Azimuth Waveforms

5.7 Index Burst Verification and Adjustment

(1) Insert an alignment diskette. Seek to the track specified in the I/B column of Table 4.1.
(2) Set the oscilloscope time base as follows: 1 ms/division.
(3) Check that the time from oscilloscope start to the first data pulse meets the I/B specifications of Table 4.1. (DAD SYSTEM).

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