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Sensor Mounted Board Replacement
m
e. Remove the damper. (Refer to 4-7)
m
f. Remove the head load ass'y. (Refer to 4-8)
g. Remove the cassette-up ass'y. (Refer to 4-9)
h. Remove the WP arm, D-Detection arm and
these compression springs. (Refer to 4-10)
i. Remove the two screws (PS2.6 x 8) which
fasten the disk motor, and then remove the
disk motor. (Refer to Fig. 4-11)
Fig.4-11 Disk Drive DC Motor (BHC-2101A)
Replacement
4-11-2. Installation and Adjustment
a. Pass the DC Disk motor harness through the
opening in front of the chassis ass'y, and then
fasten the DC Disk motor with the two screws
(PS2.6 x '8). (Refer to Fig. 4-11)
b. Install the WP arm, D-Detection arm, and
these compression springs in place_ (Refer to
4-10)
c. Install the cassette-up ass'y in place. (Refer to
4-9)
d. Install the head load ass'y in place. (Refer to
4-8)
e. Install the damper
in
place. (Refer to 4-7)
f. Install both the FC-9/FC-14 Mounted Board
and shield plate. (Refer to 4-1)
'g. Make the head clean. (Refer to 5-11)
h. Perform the radial alignment and TRK 00
sensor adjustment. (Refer to 5-4)
i
Perform the index phase adjustment. (Refer
to 5-6)
j.
Install the
m~in
cover
in
place. (Refer to 4-5)
k. Install the front panel ass'y in place. (Refer
to 4-2)
-35-
4-12. SENSOR MOUNTED BOARD REPLACE·
MENT
4-12·1. Removal
a. Connect the MFD Checker II, move the head
until it arrives at TRK 79, and then tum off
the power switch. (Refer to Fig. 2-1)
b. Remove both the FC-9/FCI4 Mounted Board
and shield plate. (Refer to 4-1)
c. Remove the front panel ass'y. (Refer to 4-2)
d.
Manually set the machine into the Disk-In
mode. (Refer to Fig. 4-9 (a) )
Em
e.
Remove the damper (Refer to 4-7)
Em
f.
Remove the head load ass'y. (Refer to 4-8)
g.
Remove the cassette-up ass'y. (Refer to 4-9)
h.
Remove the screw (PSW2.6 x 6) which fastens
the Sensor Mounted Board and remove the
Sensor Mounted Board. (Refer to Fig. 4-12)
Fig. 4-12 Sensor Mounted Board Replacement
4·12-2. Installation and Adjustment
a.
Feed the harness of Sensor Mounted Board
as shown by the arrow, set the Sensor Mount-
ed Board onto the chassis along the posi-
tioning pin, and fasten lightly it with the
screw (PSW2.6 x 6). (Refer to Fig. 4-12)
NOTE: The
sensor
board should be placed near the
disk
motor
as far
as
possible.
b.
Install the cassette-up ass'y in place. (Refer to
4-9)
,
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