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5-2 HEAD COM PlEANCE
Disassemble the following parts and then perform
the measurement.
a. Cover
Ass~y
(Refer to 4-1)
5-2-1 Tools and Measurinl Equipmcat
a. Oscilloscope
b. Fiz ture-lO
c. MFD Function Checker II
d. IF Board 52/53
e. Pad Weight
f. Level Disk (OR-D46WA)
5-2-2 Mealuremcat
a. Connect
the
drive
to
the
MFD Function
Checker II. (Refer to Fig. 2-14)
Insert the
level disk in place.
b. Connec t
the
CH-l
and
CH-2
probes
of
oscilloscope to TP-2 of IF Board 52/53 and
TP-3
of
MFD Function Checker II.
The
oscilloscope is triggered by CH-2.
c. Move the head until it arrives at TRK79, and
then pad weight is loaded on head carriage
ass'y as shown in Fig. 5-2.
d. Write "2F" on TR K 79.
e. Observe the waveform of out-put signal by
setting
the timing knob of oscilloscope to
lOmsec.
Fig.
5·2
Head Compliance Measurement
f. Take
the
Pad Weight.
and
check
if
the
out-pUt
signal level variation
at between
unloading and loading of the Pad Weight is
5'lor less of that obtained by item "e".
5-2-3 Adjustment
a. If the out-put signal level does not meet
item
5-2-2 "f", replace the head carriage
ass'y.
(Refer to 4-9)
5-3
INDEX PHASE
Disassemble the following parts and then perform
the measurement and adju.tment.
a. Cover Ass'y (Refer to
4-1)
5-3-1 Tools and MealUrement Equipment
a. Oscilloscope
b. MFD Func tion Checker II
c. iF Board 52/53
d. 50 Auto Disk (OR-DI57WA)
e. Fixture-l0
f. Index Adj. Lever
g. GDriver 2mm / LR Driver
Fixruf'llo10
Fig.
5·3
(a) Index Phase Adjustment
'-3-2 MealUfement
a. Install the Index Adj. Lever onto Future-lO.
(Refer to 2-2-4)
b. Connect
the
drive
to
the
MFD Function
Checker II.
(Refer to Fig. 2-14)
c. Insert the 50 Auto Disk in place.
-46-
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