AMSTRAD CPC664 - Alignment Checks

ALIGNMENT
CHECKS
500usec
Fig.
5-1
Index
burst
waveform
Amplitude
ratio
(%)
uu
80
60
40
20
^
b)
b)
10
20
30
40
Amount
of
Off-center
(u)
Fig.
5-2
Off-centre
calibration curve
(Effective
width of read
head is 180u)
Inner-, b/a x 100%
Outer: a/bx 100%
50
Fig.
5-3
Azimuth burst
-48'
-72'
+48'
°--e-s-
+
72'
-B-
Fig.
5-4
shows
azimuth burst
in the cases
of azimuth
-1 2',
0'
and +1
2.
T3