Table of Contents
Advertisement
Radial Alignment and Trk 00 Sensor
5-4. RADIAL ALIGNMENT AN> TRK 00 SENSOR
Dissassemble the following parts and then perform
the measurement and adjustment.
a. Main Cover (Refer to 4-5)
5-4-1. Tools and Measuring Equipment
a. SMC-70 System
b. Radial Alignment System Disk
Em
c. Alignment Disk (OR·D47VA)
Em!l
d. Alignment Disk (OR·D47WA)
e. Rotary Knob
i.
Geared Driver
g. TOTSU Screw Driver (M2.6)
h.
e
4 mm Driver
i. Hexagon Wrench Torque Driver
5-4·2. Measurement
a. Insert the Radial Alignment system disk
into the SMI-7012A drive A.
b. Tum on the power switch. After approxi-
mately 15 seconds, "off set measurement!
adjustment ver 1.0" is displayed.
c. Connect the disk drive (under test) to the
cable which leads to the
AID
converter,
5-4-4. Set Up Command
Function
1. Select the Set Up command.
2. Asks for the cOll1mand number at display center.
3. The initial value for the relative humidity is to be
set at 50 %.
[EX]
In case a relative humidity of 60 % is keyed in,
4. The initial value for the
sp~cified
off track is to be
set at 26 ",m.'
[EX]
In case an off track of 30 pm is keyed in,
insert the alignment disk, and set the DRIVE
SELECT switch (Sl 01) to 4. (Refer to Fig.
2-2)
d. Execute the Set Up command. (Refer to
5-4-4)
e. Execute the Measurement command.
(Refer to 5-4-5)
f. If adjustment is necessary, the Adjustment
command is to be executed.
(Refer to
5-4-6)
5-4-3. Adjustment
Keying
[]
[]
a. Perform adjustment in accordance with
5-4-2 (a) up to
(d).
b. Attach the rotary knob to the stepping
motor shaft and fix it with a hexagon
wrench torque driver. (Refer to Fig.
4~13
(a»
c. Execute the Adjustment command. (Refer
to 5-4-6)
NOTE:
For
resuming the state of SMC-70
System to the Initial state (that apprears
Immediately after power goes on), press
the reset button.
'
Display
COMMAND NUMBER?
1. HUMIDITY 20 - 80 %: 50.0 [%]
2. SPECIFICATION
26.0 [micrometer]
3. TIME/4DIVISIONS
: 100
[ns]
4. R/W CORE WIDTH
: 120
[micrometer]
5. QUIT
COMMAND NUMBER?
HUMIDITY [%]?
~IQ]IRETURNI
COMMAND NUMBER?
SPECIFICATION?
@I@JIRETURNI
COMMAND NUMBER?
-42-
Advertisement
Table of Contents
