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3-2-4-4.
Level disk calibration
Setting of the following calibration value is required for accurate
measurement before the check of the read level or the resolution.
Use a level disk with a calibration value (100% center) written on the
label.
The
setting will
be
maintained until the main DC power
(SKA PWR)
is turned off or until the RESET switch of the
SKA
is depressed.
If the calibration value is the same as the initial value
(100%)
of the
SKA,
the initial setting of the following is not required.
Also the setting in this item is not required when the level disk is
not used (i.e., when it is substituted with a commercially available
disk and no accurate measurement is required).
(A) Conventional SKA
(1) Innermost track read level
(a) Key in "DO".
(CALIBRATION READ LEVEL)
(b) Calibration value set at that time is indicated in the latter three
digits of the DATA indicator, XXXX
( % I .
(c) Key in a new calibration value written on the level disk label
(three digits, Max.
)
.
Notes: 1. If the side is changed for
a
double sided FDD, new calibration
value shall be keyed in.
The side is changed alternately by a depression of "4" key.
If the side 1 is selected, SIDE 1 indicator of the
SKA
turns on.
Confirm the used side by the indication of the SIDE 1 indicator
at the input of a new calibration value.
2 .
If there is no calibration change in item (b)
,
omit item (c)
.
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3220
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