Remove the three screws (PSW2.6 x 6) which fasten
both the FC-9/FC-14 Mounted Board and shield
plate to the chassis ass'y. (Refer to Fig.
b.
Remove
all
excessive force
(Refer
Bosl-t-+_".q,.:::),.
the connectors. Do not apply any
to
to
the head harness (CNI06). .
Fig~
4·1
(b»
fa}
4·1 (a) )
SECTION 4
b. Insert the harness between the chassis ass'y and
c.
d. Index phase adjustment. (Refer
4·2. FRONT PANEL ASS'Y REPLACEMENT
4·2·1. Removal
a.
4-2-2.
a.
b. Install the LED into the square opening within the
c. Fasten the chassis ass'y
NOTE
NOTE
Mounted
7p (To the disk motor)
6p (To the stepping motor) CN105
(V)
5p
(To the head)
(W) 6p (To the head)
3p (To the plunger)
3p (To LED)
3p (To
FC·9/FC·14 Mounted Board and fasten the FC·9j
FC·14 Mounted Board and shield plate with the
three screws
Read amplifier gain and offset adjustment. (Refer
to
5·7)
Remove the two screws (PS2.6 x 10) from the
bottom
of
front panel ass'y. (Refer
Installation
Install the eject button and compression spring
onto
the front panel ass'y.
front panel ass'y, and then press the front panel
to
the chassis ass'y.
ass'y
the
bottom
10). (Refer
1:
Install both the chassis ass'y and front panel ass'y
in place so that these assemblies closely contact.
2:
Do
ness), during the installation
gap
between these assemblies.
Board Replacemen1
Harness
tp.e
TRK
00
sensor)
(PSW2.6 x 6). (Refer to
the chassis ass'y and then remove the
surface with the two screws (PS2.6 x
to
not pintch the harness, (especially head har·
to
Fig. 4·2)
FC·9/FC·14
Mounted Board
CNIOI
CNI06
. CNI06
CNI04
CNI02
CNI03
Fig.
to
5-6)
to
Fig. 4-2)
the front panel ass'y
le,
the
head harness
PS2.6x10
4-1)
on
fb}
Fig.
4-1
FC·9 / FC·14
4-1·2. Installation and Adjustment
a.
Set the respective connectors to the FC·9/FC·14
Mounted Board.
Mounted
Board
-29-
.
CDmp,"",~
Spring
E"'Butt
..
r-l~.;:
;~r
~
~ i ~
FC.9/FC'14
Mountlld Board
~~~~II
~
Front
pa!,AIS'Y
Fig. 4-2
.
~
Front
~
D'_
GLSPR20
.
Panel Ass'y Replacement
Page 28
Blind Panel Replacement
4-3. BLIND PANEL REPLACEMENT
4-3·1. Removal
a.
Remove the front panel ass'y. (Refer to 4-2)
b.
Remove the blind panel by twisting it into the
arrow while pressing its both edges. (Refer
4-3)
4-3·2. Installation
a.
Press the blind panel toward the cassette-up ass'y
and latch the two tabs onto the disk holder.
to
Fig. 4-3)
(Refer
b. Install the front panel ass'y. (Refer-to 4-2)
Fig.
4·3
Blind Panel Replacement
4-4. LED MOUNTED BOARD ASS'V
REPLACEMENT
4-4·1. Removal
a.
Remove both the FC-9/FC-14 Mounted Board and
shield plate. Disconnect
(Refer to Fig.
4-4 (a) )
b. Remove the front panel ass'y. (Refer
c.
Remove the LED Mounted Board ass'y from the
chassis ass'y.
CN
102 connector.
to
4-2)
4-4·2. Installation
a.
Peel
off
remover from the cushion and set the
LED Mounted Board
as
shown in Fig. 4-4 (b).
b. Install both the FC-9/FC-14 Mounted Board and
to
Fig.
shield plate. (Refer
c.
Install the front panel ass'y. (Refer
Fig.
4·4
LED Mounted Board
PS2.6x
(aJ
REO
BLK
(bJ
to
LEO
4-1)
10
Mounted
Board
Ass'y
to
4·2)
Ass'y
Replacement
-30-
Page 29
Main Cover Replacement
4-5. MAIN COVER REPLACEMENT
4-5·1. Removal
a. Remove the screw
main cover from the chassis ass'y,
the main cover.
4-5·2. Installation
a.
Install the main cover so
is set in accordance with the arrow, and then
install the main cover with the screw
(Refer
to
Fig. 4-5 Main Cover Replacement
ED
4-6. PAD ASS'V REPLACEMENT
4.0-1. Removal
a. Remove the main cover.
b. Lifting the pad arm tip
not
be applied
may
pad
ass'y
the
Fig. 4-6 (a»
4.0-2. Installation and Adjustment
a. Pick
up
pad
lightly and insert
pad arm ass'y. (Refer
b.
Pull
down
is arranged in parallel with
Fig. 4-6 (b).
(82.6
x
(Refer
to
Fig. 4-5 )
that
Fig. 4-5)
(Refer
so
that
to
the pad arm ass'y. remove
by
pressing its rear part.
holder
(not
pad itselO
pad
ass'y
to
Fig. 4-6 (a) )
the pad arm ass'y, and check
5)
which fastens the
and
then
remove
the position marked
(82.6
to
4-5)
any
excessive force
(Refer
of
into
the
pad ass'y
the location
if
the
head as shown
x 5).
to
on
pad
in
c. Perform the pad pressure adjustment.
5-2)
d. Perform the head clearance adjustment. (Refer
to
5-10)
e.
Perform
the
HL
5~)
f.
Make the head clean.
g.
Perform the head compliance adjustment.
to
5-3)
h. Install the main cover. (Refer
Pad Holder
arm height adjustment.
(Refer
to
to
Pad
Arm
P~~~
Pad
Ass'y
ra)
Fig. 4-6 Pad
E12I
4-7. DAMPER REPLACEMENT
4·7-1. Removal
a.
Remove
b.
Manually set
(Refer
to
c. Remove
damper
the damper.
Ass'y
Replacement
the
main cover.
the
Fig. 4-9 (a) )
the
screw (PS2.6 x
to
the head load ass'y. and
(Refer
machine
to
Fig. 4-7)
(Refer
into
6)
(Refer
(Refer
.
5-11)
4-5)
Ass'y
to
4-5)
the
Disk-In mode.
which fastens
then
(Refer
the
remove
to
to
-31-
Page 30
tlead Load Ass'y Replacement
4·7·2. Installation
a.
Insert
the
damper arm tip
sette holder and
the
head load ass'y. (Refer
b. Install
the
c. Make.the head clean. (Refer
Fig.
4-8.
HEAD
Removal
4-8·1.
a.
Remove
and shield
. b. Remove
c. Manually set
mode. (Refer
Em
d. Remove
e. Remove
fasten
that
head arm, and then remove
ass'y, (Refer
HL
arm, and set
main cover.
4·7
LOAD
the head load ass'y
an excessive force is
(Refer
Damper Replacement
ASS'V REPLACEMENT
both
the FC-9/FC·14 Mounted Baord
plate: (Refer
the
main cover. (Refer
the
machine
to Fig. 4·9 (a) )
the
damper. (Refer
the
two
screws (PS2.6 x 6) which
to
Fig.
4-8·2. Installation and Adjustment
a.
Manually set the machine into
mode. (Refer to Fig.
Em
Pass the harness
b.
the
opening
(a)
(b)
c. Fasten
nal
to
it 6). (Refer
d. Bend one
±l~o.
e. Install
of
the
of
the
)
both
the
(Refer
the
chassis. (Refer
the head load ass'y and lug termi-
chassis with
to
Fig. 4-8 (a)
tip
of
the
to
Fig. 4-8
damper
in
into
between
the
the
Fig. 4·7)
to
4·5)
5·11)
4-1)
into
to
to
not
(a) (b»
two
(b)
(c»
(Refer
damper
to
4·5)
the
Disk·In
4·7)
the
chassis so
applied
to
the
head load
the
Disk·In
to
Fig. 4·8
screws (PS2.6
)
by
to
4-7)
to
to
to
4·8
4·9 (a) )
head load ass'y through
the
lug terminal
place.
cas-
the
90
f.
Install
both
the
FC-9/FC-14 Mounted Board
in
and shield plate
g.
to
0
Perform
(Refer
h. Perform
to
5-9)
i. Install
j.
Make
Fig. 4-8 Head
to
the
the
place. (Refer
the
head clearance adjustment.
5-10)
the
HL
arm height adjustment. (Refer
main cover
head clean.
Load
Ass'y Replacement
in
place.
(Refer
(Refer
to
to
4-1)
5·11)
to
4·5)
-32-
Page 31
4-9. CASSETTE·UP ASS'Y REPLACEMENT
4~·1.
Removal
_ a. Remove both the FC·9 Mounted Board and
shield plate. (Refer to 4-1)
to
b. Remove the front panel ass'y. (Refer
4-2)
c. Remove the blind panel. (Refer to 4-3)
d. Remove the main cover. (Refer to 4-5)
e.
Manually set the machine into the Disk-In
mode. (Refer
_
f.
Remove the damper. (Refer
_
g.
Remove the head load ass'y. (Refer
to
Fig. 4-9 (a) )
to
4-7)
to
4-8)
h. Remove the four screws (PSW2.6 x 8) from
the bottom
the cassette-up ass'y. (Refer
of
the chassis, and then remove
to
Fig. 4-9
(b»
Cassette-Up AsS'y Replacement
CillIJranCtl
Sidll Platll
(LBftJ-mf--....l...+---I'
(c)
ClllaranCtl
Sidll Platll (RightJ
(aJ
Stllllling
to
Disk-In Modll
(bJ
-33-
(dJ
TDP VIEW
of
Cassstte-UpAss'y
Positioning Pin
Fig_
4-9 Cassette-Up
~-2.
Installation
a.
Place the cassette-up ass'y onto the chassis
(eJ
and
Adjustment
Ass'y
Replacement
ass'y and fasten the bottom
ass'y
'lightly with the four screws (PSW2.6 x
to
8). (Refer
Fig. 4-9 (b) )
of
the chassis
Page 32
WPArm/D-Detection
Spring
(3-659-609-00)
Arm/Compression
Replacement
b. Insert the standard disk dummy (OA-120)
into the cassette-up ass'y. Check
ard disk dummy positioning hole aligns with
the positioning pin
clearance shown
assured, and then fasten the four screws
firmly.
Em
c. Install the head load ass'y. (Refer
Em
d. Install the damper
e.
Insert the level disk
Check
if
disk positioning
while touching the
ing holes in the
to
(Refer
ing is properly located even while placing each
of
the disk drive downwards.
side
f.
If
any displacement
ing test
.in
defined
in
g.
Press the eject lever and check
can smoothly be
Em
h. Install the both FC-9 Mounted Board and
shield plate in place. (Refer
i.
Make
the head clean. (Refer
j. Install the main cover in place. (Refer to
k. Install blind panel
1.
Install the front panel ass'y in place. (Refer
to 4-2)
4-10.
WP
ARMlD"[)ETECTION ARMICOMPRE.S·
SION SPRING
MENT
4-10-1.
Removal
_
a.
Remove both the FC-9 Mounted Board and
shield plate. (Refer to 4-1)
b. Remove the front panel ass'y. (Refer to 4-2)
c. Remove the main cover. (Refer
d. Manually set the machine into the Disk-In
mode. (Refer
IE
e.
Remove the damper. (Refer
_
f.
Remove the head load ass'y. (Refer to 4-8)
g.
Remove the cassette-up ass'y. (Refer
h. Remove the E ring (E2.3), pull out both the
WP
and D-Detection arms, and remove the
compression spring
chassis ass'y. (Refer
on
the chassis, and if the
in Fig. 4-9 (c) (d) are kept
in
place. (Refer
into
the cassette-up ·ass'y.
is
forefmge.r at the position-
left
Fig. 4-9
4-9-2.
and right
(e»
Check
is
found during position-
item (e), repeat the operations
mifted up and down.
to
in
place. (Refer
(3-65~09~0)
to
Fig. 4-9 (a) )
(3~59~09~0)
to
Fig. 4-10)
if
the stand-
to
4-8)
to
4-7)
properly located
of
the disk.
if
disk position-
if
the level disk
4·1)
to
5-11)
4-5)
to
4-3)
REPLACE-
to
4-5)
to
4-7)
to
4-9)
from the
~E2.3
WPArm
~E2.3
Fig.
4·10
WP
Arm/D·Detection Arm/Compression
Spring Replacement
4·10·2. Installation
a.
Pass the compression spring (3-659-609-00)
and
609·00) and D·Detection arm through the
shaft in sequence. Then, clamp them with the
E ring (E2.3). (Refer
b. Pressing with the fmgers the portion indicated
by arrow on the
check
returns to home position by spring force.
IE
c.
Install both the FC·9 Mounted Board and
shield plate in place. (Refer to
d. Install the cassette·up ass'y in place. (Refer to
4-9)
IE
e. Install
4-8)
_
f.
Install the damper in place. (Refer to 4-7)
g.
Make
h. Install the main cover
i.
Install the front panel ass'y in place. (Refer
to 4-2)
4·11.
DC
REPLACEMENT
4·11-1. Removal
a.
Connect the
off
b.
Remove both the FC-9/FC-14 Mounted Board
and shield plate. (Refer to
c.
Remove the front panel ass'y. (Refer
d. Remove the main cover. (Refer
e.
Manually set the machine into the Disk-In
mode. (Refer to Fig. 4-9 (a) )
and
Adjustment
WP
arm
or
the compression spring
to
Fig. 4·10)
WP'
if
the
WP
the
head load ass'y in place. (Refer to
the head clean. (Refer
DISK DRIVE MOTOR (BHC·2101A)
MFD
the power switch. (Refer
or
or D-Detection arm smoothly
in
place. (Refer
Checker II, and then
4-1)
D-Detection
D-Detection arm,
to
to
4·1)
5-11)
Fig. 2-1)
to
4-5)
Arm
(3~59·
to
4-5)
turn
to
4-2)
-34-
Page 33
Sensor Mounted Board Replacement
m e. Remove the damper. (Refer to 4-7)
m
f.
Remove the head load ass'y. (Refer
g.
Remove the cassette-up ass'y. (Refer
h.
Remove the
these compression springs. (Refer
i. Remove the two screws (PS2.6 x 8) which
fasten the disk motor, and then remove the
disk motor. (Refer
Fig.4-11 Disk Drive DC
4-11-2. Installation and Adjustment
a.
Pass the
opening in front
fasten the
(PS2.6 x
b. Install the
these compression springs in
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
f.
Install
and shield plate. (Refer to 4-1)
'g.
Make
h. Perform the radial alignment and TRK
sensor adjustment. (Refer to 5-4)
i Perform the index phase adjustment. (Refer
to
5-6)
j.
Install the
k. Install the front panel ass'y in place. (Refer
to 4-2)
WP
arm, D-Detection arm and
to
Fig. 4-11)
Motor
Replacement
DC
Disk
DC
Disk motor with the two screws
'8).
(Refer
WP
both
the FC-9/FC-14 Mounted Board
the head clean. (Refer to 5-11)
m~in
cover
(BHC-2101A)
motor
harness through the
of
the chassis ass'y, and then
to
Fig. 4-11)
arm, D-Detection arm, and
place_
in
place. (Refer to 4-7)
in
place. (Refer
to
to
4-10)
(Refer
4-8)
to
4-12.
SENSOR
MENT
to
4-9)
to
00
4-5)
4-12·1. Removal
a.
Connect the
until it arrives at TRK 79, and then
the power switch. (Refer to Fig. 2-1)
b. Remove
and shield plate. (Refer
c.
Remove the front panel ass'y. (Refer
d. Manually set the machine into the Disk-In
mode. (Refer to
Em
e. Remove the damper (Refer
Em
f. Remove the head load ass'y. (Refer
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
as shown by the arrow, set the Sensor
ed Board
tioning pin, and fasten lightly it with the
screw (PSW2.6 x 6). (Refer
NOTE: The
b. Install the cassette-up ass'y in place. (Refer
4-9) ,
MOUNTED BOARD REPLACE·
MFD
Checker II,
both
the FC-9/FCI4 Mounted Board
Fig.
of
onto
the chassis along the posi-
sensor
board should
disk motor
as
far
move
to
4-1)
4-9 (a) )
to
4-7)
Sensor Mounted Board
to
Fig. 4-12)
be
placed near the
as
possible.
the head
tum
off
to
4-2)
to
4-8)
Mount-
to
-35-
Page 34
Lead
Screw
ED
c. Install the head load ass'y in place. (Refer
4-8)
ED
<I.
Install the damper
e.
Install both the FC-9/FC-14 Mounted Board
and shield plate. (Refer
f.
Make
g.
Perform the radial alignment and TRK 00
sensor adjustment. (Refer
h. Install the front panel ass'y in place. (Refer
to
i. Install the main cover in place. (Refer
4-13_
LEAD
LEAD
PRESSION SPRING
REPLACEMENT
4-13.1. Removal
a. Remove
and shield plate. (Refer
b. Remove the front panel ass'y. (Refer
c.
Remove the main cover. (Refer
d. Attach the rotary knob
the stepping motor with hexagon wrench
torque driver. (Refer
Check
metal and rotary knob is approximately
0.5mm.
e. Manually set the machine into the Disk-In
mode. (Refer
ED
f. Remove
ED
g.
Remove the head load ass'y. (Refer
h. Remove the cassette-up ass'y. (Refer
i.
Remove die two screws (PSW2.6 x 6) which
fasten the stepping motor. (Refer
(b»
Coupling Ass'y
Ass'y
in
place. (Refer
the head clean. (Refer
4-2)
SCREW ASS'V (STEPPING
SCREW/COUPLING ASS'V/CaM-
both
the FC-9/FC-14 Mounted Board
if
the gap between the
the
Compression Spring
(a)
to
to
Fig. 4-9
damper. (Refer
Stt:pping
Replacement
to
4-7)
to
4-1)'
to
5-11)
to
5-4)
to
4-5)
MOTOR/
(4-601-083-GO) )
to
4-1)
to
4-2)
to
4-5)
to
the rear shaft
Fig. 4-13
motor
(a»
to
4-7)
Motor
-
(a»
to
Fig. 4-13
bearing
to
4-8)
to
4-9)
Rotary
@
-
-
~
of
to
Fig. 4-13 Stepping
j.
Turning the rotary knob, remove the lead
screw
tweezers the ball bearing which hold the lead
screw, as shown in Fig. 4-13 (b)-I.
4-13-2. Installation and Adjustment
NOTE:
If
ass'y,
NOTE: Apply Sony grease (same quantity
whole area
a. Stepping motor, lead screw, coupling ass'y
and thrust bearing must be roughly
b. Pressing the coupling ass'y
fasten the setscrew near the lead screw with a
hexagon wrench torque driver. (Refer
4-13
c. Pressing the coupling ass'y
motor, fasten the setscrew near the stepping
motor with a hexagon wrench torque dirver.
(Refer
d.
Knob
I
Turning the rotary knob, pass the lead screw
through the opening
the path indicated by arrow. (Refer
4-13 (b) )
e.
Fasten loosely the stepping
two screws
f.
Loosen the setscrew
so
by
g.
Pulling the rotary knob lightly, fasten the setscrew
wrench torque driver.
Motor
Ass'y
ass'y..
the replacement can
steps
(a»
to
that
the lead screw touches the ball bearing
the force
near the stepping
(SNS·1100A), Coupling
and
Compression Spring Replacement'
DUring
removal, hold with the
be
8 up
to
of
lead screw before replacing it.
Fig. 4-13 (a) )
(PSW2.6 x 6).
of
the compression spring.
made with lead screw
II
should be skipped.
to
of
the ball bearing along
ne!U"
the stepping
motor
of
the lead screw,
to
th~
motor
with a hexagon
watch tip) on
assembled'.
to
Fig.
stepping
to
Fig.
with the
motor
-36-
Page 35
(32V)
(32W)
h.
Perform the lead screw eccentricity adjustment. (Refer
E!D
i Perform the stepping
justment. (Refer
j. Install the cassette-up ass'y in place. (Refer
4-9)
EEm
k. Install the head load ass'y in place. (Refer
4-8)
EEm
I.
In$tall the damper in place. (Refer
m.Install
and shield plate. (Refer
n. Make
o. Remove the rotary knob from the stepping
motor
p.
Perform the radial alignment and TRK
sensor adjustment. (Refer
q.
Instiill
r. Install the front panel ass'y in place. (Refer
to
4-2)
4-14. (32V) HEAD ARM ASS'Y REPLACEMENT
(32W) HEAD CARRIAGE ASS'Y
REPLACEMENT
NOTE:
Do
head carriage ass'y because these ass'y have precisely
been adjusted
4·14-1.
Removal
a.
Remove
and shield plate. (Refer
b. Remove the front panel
c.
Remove the main cover. (Refer
d. Manually set the machine into the Disk-In
mode. (Refer
EEm
e.
Remove the damper. (Refer
Em
f.
Remove the
g.
Remove
_ h. Remove the screw (PSW2.6 x 6) which
fastens the head harness to the chassis on the
bottom
Em
i.
Remove
the head harness
bottom
head harness
(Refer
NOTE: The head harness
j. Remove the two screws (PSW2.6 x 6) which
fasten the guide shaft. (Refer
(b»
to
5-1) .
motor
to
5-5)
both
the
FC-9/FCI4
to
the
head clean. (Refer
shaft.
the
main cover
not disassemble
both
the
surface.
the
surface
to
Fig. 4-14 (b) )
via the adhesive tape with its
coated with adhesive agent.
in
place. (Refer
or
adjust the head arm ass'y or
in
factory.
the FC-9/FCI4 Mounted Board
to
ass·y. (Refer
to
Fig. 4-9 (a) )
helJ.d
load ass·y. (Refer
cassette-up ass·y. (Refer
(Refer
to
screw (PSW2.6 x 8) which fastens
to
the shield plate on the
of-
the
chassis. and remove the
that
is adhesive
is
contacted to the chassis
load torque ad-
to
Mounted Board
4-1)
to
5-11)
to
5-4)
4-1)
to
4-5)
to
4-7)
Fig. 4-14 (a) )
to
the
both
to
Fig. 4-14 (a)
4-7)
to
4-5)
to
4-2),
to
4-8)
to
~-9)
chassis.
surface
Head
Arm
Ass'y Replacement
Head Carriage Ass'y Replacement
D k. Smoothly pull
to
to
00
-37-
with the guide shaft. (Refer
Guide Shaft
PSW2.6X9~
(e) (d)
Fig.
4-14 Head Arm Ass'y Replacement
out
the head arm ass'y together
Carriage
Head
Ass'y
to
Fig. 4-14 (a) )
(b)
Replacement
Page 36
(32V)
(32W)
Head Arm Ass'y Replacement
Head Carriage Ass'y Replacement
Em
1.
Smoothly pull
together with the guide shaft. (Refer
4-14
(b»
Em
m.
Disconnect the head board from the head
harness (by four points) with a soldering iron.
to
(Refer
Em
n.
Disconnec~
harness (b'y six points) with a soldering iron.
(Refer
to
4-14-2. Installation and Adjustment
NOTE:
Apply
Sony
Apply
Sony
ass'y
and
Em
a.
PaSs
the guide shaft through the openmg
the head arm ass'y.
Em
b. Pass the guide shaft through the opening
the head carriage ass'y.
Em
c.
Carefully install the head arm ass'y in place.
(Refer
to
Em
d. Carefully install the head carriage ass'y in
place. (Refer to Fig.
e. Fasten the guide shaft with the two screws
(PSW2.6 x 6).
Em
-
f.
Fasten the head board
bottom
the screw.
g.
Connect the head board
(by
four
to
Fig.'4-14
h. Connect
(by
six points) with a soldering iron. (Refer
to
Fig. 4-14
out
the head carriage ass'y
Fig. 4-14 (c) )
the head board from the head
,Fig.
4-14 (d) )
oil
to
the
guide
oil
to
head
carriage
Fig. 4-14 (a) )
surface, and apply nut lock paint
points)
(c»
the
head board to the head harness
(d»
shaft
the
openings
of both
au'y
using
4-14
(b»
to
the chassis
to
with a soldering iron. (Refer
to
before
installing.
the
head
the
bamboo
on
the head harness
Fig.
ann
stick.
the
ED
i. Fasten head board and terminal shield plate
with a screw
bottom,
NOTE:
Em
j. Perform the stepping motor load torque ad-
justment. (Refer
k. Install the cassette-up ass'y in place. (Refer
4-9)
Em
1.
Install the head load ass'y in place. (Refer
4-8)
Em
of
of
to
m. Install the damper in place. (Refer
n. Install
and shield plate. (Refer
Perform the
o.
(Refer
Perform the head clearance adjustment.
p.
(Refer
q'.
Make
r.
Perform the radial alignment and TRK
sensor adjustment. (Refer
s.
Perform the read amplifier gain and offset
adjustment. (Refer
'Perform the index phase adjustment. (Refer
t.
to
5-6)
u. Install the main cover in place. (Refer
v . .Install the front panel ass'y in place. (Refer
to
4-1)
(PSW2.6 x 8)
and then apply
The
screw
may
produce
head
board.
both
the FC-9/FC-14 Mounted Board
HL
to
5-9)
to
5-10)
the head clean. (Refer
nut
,
to
to
not
be
electrical
5-5)
to
5-7)
lock paint
tighten
4-1)
to
must
arm height adjustment.
short
to
54)
on
5-11)
the chassis
onto
too
hard.
or'
crack of
to
4-7)
to
4-5)
it.
It
to
to
00
-38-
Page 37
CHECK'
After measurement and adjustment in accordance
SECTION 5, please surely clean the head.
with
5-1. LEAD SCREW ECCENTRICITY
Disassemble the following parts and then perform
the measurement and adjustment.
a.
Main Cover (Refer
b.
Front
Panel Ass'y (Refer
Em
c.
Q_amper
(Refer
Em d. Head Load Ass'y (Refer
e.
Cassette-up Ass'y (Refer
5-1·1. Tools and Measuring Equipment
a.
Lead Screw Eccentricity Inspection Tool
b. Hexagon Wrench
c.
Rotary Knob
MFD
Checker
d.
5-1-2. Measurement
a. Connect the
drive. (Refer
head until it arrives at TRK
b.
Tum
off
c.
Attach the rotary knob
of
the stepping
wrench
torque driver. (Refer
(a»
Check
bearing metal and rotary knob
mately 0.5 mm.
d. Revolve the rotary knob 3 to 4 turns
counterclockwise
e.
Aligning the positioning hole
screw eccentricity tool
pin on the chassis ass'y, set the lead
screw eccentricity inspection tool in place.
to
(Refer
f. -Tum
the
clockwise
measures
the lead screw eccentricity inspection tool)
or
5-1-3. Adjustment
less.
a. Attach
b. Loosen with a hexagon wrench torque
c.
the
motor
shaft. (Reifer
driver the two screws which- fasten the
coupling ass'y.
Pressing the coupling ass'y
screw, fasten the setscrew for the lead
screw with a
torque
(with a
to
4-5)
to
to
4-7)
to
4-8)
to
4-9)
Torque Driver
II
MFD
Checker n to the disk
to
Fig.
2-.1)
and step in the
79.
the power.
onto
motor
shaft with hexagon
if
the gap between the motor
by
hand.
to
the positioning
Fig. 5-1)
rot:lry knob clockwise
by
hand. Check if
50
p.m
(5 scales
on
rotary knob
hex~on
onto
to
Fig. 4-13
wrench torque driver.
of
0.7 kg-cm)
4-2)
the rear shaft
to
Fig. 4-13
is
of
or
the meter
the stepping
(a»
to
the
SECTION 5
AN,D
approxi-
the lead
counterthe
Em
gap
of
lead
-39-
Lead
Screw
ADJUSTMENT
d.
Pulling the stepping motor shaft, fasten the
setscrew for the stepping motor. (With a
torque orO.7 kg-cm)
e. Measure the lead screw
cordance with 5-1-2.
Unless
the
measurement should be carried out' again
starting with item
Fig.5-' Lead Screw Eccentricity Adiustment
5-2. PAD PRESSURE
Disassemble
the measurment and adjustment.
a. Main Cover (Refer to
5-2-1. Tools and Measuring Equipment
a.
Tension Gauge
5-2-2. Measurement
a. Manually set the machine into
mode. (Refer
b. Install a string
end and tie the other end
point. (Refer
c.
Manually put down the
set the machine into the Head Load mode.
d. Lift the pad arm with the tension gauge,
and then slowly put down
until the gauge reading becomes unchanged.
result meets the specification,
"a".
the
following parts and then perform
to
Fig. 4-9 (a) )
to
the tension gauge at one
to
Fig.
Eccentricity
eccentrifity in ac-
4-5)
the
to
the
(a) )
HL
measuring
arm, and
the
5-2
Disk-ln
then
pad arm
Page 38
Head Compliance
Identify
as
stable reading can be obtained. (Refer to
Fig. 5-2 (b) )
"A"
'-........~
(a) Pad Pressure Measuring
(x)
Distance between surfaces
Fig.
5·2
Pad Pressure
the position where the
\
M~8SUring
~
Fan·Shaped Gauge
Method
of
head
and
(b)
(e)
Adjustment
pad.
Point
e.
Put
down the pad arm below point
until
the
point just before the pad arm
touches the head, and then read the rising
peak value at point
(b»
f.
Check if the reading
specified for adjustment.
5-2-3. Adjustment
a.
Unless the reading
change the spring set-position.
If
the reading is
b.
the position toward
less than 9.5
"B".
Do
the string
5-3.
HEAD
COMPLIANCE
Disassemble the following parts and then perform
the measurment and adjustment.
a.
Main
Cover (Refer to 4-5)
5-3-1. Tools and Measuring Equipment
a.
Oscilloscope
MFD
Checker II
b.
ED
c.
Level Disk (OR-D46VA)
d. Level Disk (OR-D46WA)
_
e.
Pad weight
ED
f.
e 2 mm Driver
g.
Rotary Knob
h. Hexagon Wrench Torque Driver
5-3-2. Measurement
a. Connect the disk drive
II. (Refer
b. Insert the level disk in place, and move the
onto
head
Set the
c.
d. Attach the rotary knob onto the stepping
e.
HD
Checker
II
motor
shaft and fix it with a hexagon
wrench torque driver. (Refer
(a)
)
Write
"2F"
amplifier output waveform at
satisfactory.
"B". (Refer
is
in
excess
"A".
g,
move the position toward
not
change position
is
set. (Refer to Fig. 5-2 (c) )
to
Fig.
2-1)"
TRK 79.
LOAD
to
swhch
"ON".
into the disk and check if the
is
out
to
within
of
of
12.5
If
the reading
the
MFD
on
to
11
11
"C"
the
to
CNIO?-I
"A"
Fig. 5-2
±1.S g
± 1.5
g,
move
where
Checker
MFD
Fig. 4-13
g,
is
is
-40-
Page 39
Head Compliance
f.
When a pad weight
Fig.
5-3
(a), (b);
1) The output signal level at that time should
not be greater than
pad weight
2) The output sigriallevel
not be 95
no pad weight
(a) Weight Positioning
_ that obtained by item
(b) Weight Positioning
is
loaded.
% or less
is
loaded.
is
loaded as shown
that
obtained when no
at
that time should
of
that obtained when
in
g.
Take the pad weight, and move the head
TRK 03.
h. Write
"IF"
into
the disk.
i. Turn the rotary knob clockw\se until it
arrives at the clicking point, move
04, and write
to TRK
Em
j. Fully
turn
the
wise, move
check if the
is
5 %
Em.I
k. Fully
wise,
check if the output signal level at
is
10 %
l.
Write
m.
Turn the rotary knob counterclockwise
until
the head
the disk.
Em
n.
Turn the rotary knob clockwise until it
arrives at the clicking point, move the head
back
signal level at that time
_ o. Turn the rotary knob clockwise until it
arrives at the clicking point, move the head
back
signal level at that time
that obtained by item
5-3-3. Adjustment
ED
a.
If
the output signal level does
item 5-3-2
turning the pad ass'y
(c).
Em.I
b.
If
the output signal level does
item 5-3-2
ass'y. (Refer to 4-14)
Em
c.
If
the output signal level doesnot meet
item 5-3-2
turning the pad ass'y as shown in Fig.
(c).
NOTE: Check
Em.I
d.
If
the output signal level doesnot meet
item 5-3-2
ass'y. (Refer
rotary knob counterclock-
the
head back
output
or
less
of
that obtained by item
turn
the
rotary knob counterclock-
move
the
head back
or
less
of
that 0 btained by item
"IF"
into
the disk.
it
arrives at the clicking point, move
to
TRK 02, and write
to
TRK 03, and check if the output
to
TRK 03, and check
"f",
perform adjustment by
"f",
replace the head carriage
"n",
perform adjustment by
if
the
tory after this adjustment
head compliance
"0",
replace the head carriage
to
4-14)
the
in
to
the disk.
TRK 03, and
TRK 03, and
that
"EXT"
5 %
or
less
if
the output
10 %
or
less
not
not
is
satisfac-
head
"h".
time
"e".
into
meet
5-3
meet.
5-3
"EXT"
to
signal level at that time
to
is
"I".
is
"1"_
as
shown in Fig.
to
of
of
ASoS'y
(e) Pad
Fig. 5-3 Head Complience
Rotation
-41-
Page 40
Radial Alignment and
Trk
00
Sensor
5-4. RADIAL ALIGNMENT AN> TRK
Dissassemble
the measurement and adjustment.
5-4-1. Tools
Em
Em!l
5-4·2. Measurement
5-4-4.
1.
Select the Set Up command.
2.
Asks for the
the
following parts and then perform
a.
Main
Cover (Refer
and
Measuring
a. SMC-70 System
b. Radial Alignment System Disk
c.
Alignment Disk (OR·D47VA)
d. Alignment Disk (OR·D47WA)
e.
Rotary Knob
i.
Geared Driver
g.
TOTSU Screw Driver (M2.6)
e 4 mm Driver
h.
i. Hexagon Wrench Torque Driver
a.
Insert the Radial Alignment system disk
the
SMI-7012A drive
into
b.
Tum
on
mately
15
adjustment ver
c. Connect the disk drive (under test) to the
cable which leads
Set
Up Command
cOll1mand
to
4-5)
Equipment
A.
the power switch. After approxi-
seconds,
"off
set measurement!
1.0"
is
displayed.
to
the
AID
Function
number
at
display center.
00
SENSOR
converter,
insert the alignment disk, and set the DRIVE
SELECT switch
2-2)
d. Execute the
5-4-4)
e. Execute
(Refer
f.
If
adjustment
command
5-4-6)
5-4-3.
Adjustment
a. Perform adjustment in accordance with
5-4-2 (a)
b. Attach the rotary knob
motor
wrench torque driver. (Refer
(Sl
01) to 4. (Refer
Set Up command. (Refer
the
Measurement command.
to
5-4-5)
is
necessary, the Adjustment
is
to be executed. (Refer to
up
to
(d).
shaft and fix
(a»
c. Execute
Keying
[]
the
to
NOTE: For resuming the state
Adjustment command. (Refer
5-4-6)
System
to
the Initial state (that apprears
Immediately after power goes on), press
the reset button. '
Display
COMMAND
1.
2. SPECIFICATION 26.0 [micrometer]
3.
4. R/W CORE
5. QUIT
COMMAND
NUMBER?
HUMIDITY 20 - 80
TIME/4DIVISIONS : 100 [ns]
WIDTH
NUMBER?
to
the stepping
it
with a hexagon
to
Fig.
of
SMC-70
%:
50.0
: 120 [micrometer]
to
Fig.
4~13
[%]
to
3. The initial value for the relative humidity
50
%.
set at
[EX]
In case a relative humidity
4. The initial value for the
set at 26
[EX]
In
case an
",m.'
off
track
of
60 % is keyed in,
sp~cified
of
30
pm
is
off
track
keyed in,
is
to
be
[]
~IQ]IRETURNI
is
to
be
@I@JIRETURNI
HUMIDITY [%]?
COMMAND
SPECIFICATION?
COMMAND
NUMBER?
NUMBER?
-42-
Page 41
Measurement Command
Function
5.
The
initial value for
be set
at
100 msec.
[EX)
In
case an INDEX signal period
keyed in,
6.
The
initial value for
set
at
120 "m.
[EX)
In
case a
OA-32V is keyed in. (Specify a
of
120
/.1m
7. When
the
to
(control
5-4-5. Measurement Command
1.
Select
the
Measurement command.
Insert the Alignment disk.
2.
Set
the
AID
the
peak values
tern signal may range from 2
to
Fig. 5-4
NOTE:
If
gain adjustment cannot be done, key
execute step 9. Thereafter, perform the radial
alignment adjustment. (Refer to 54-6.)
3. Measure
4. Calculate
NOTE:
the
the
When
key
adjustment
the
INDEX signal period is
I
for
(a)
the
RfW core width is
RfW
core width
the
OA-32W.)
Set
Up command execution ends,
the main menu.)
FUnction
converter gain
at
both edges
)
off
track._
off
track.
"NO GOOD" is indicated on the
[Q]
to
execute step
in accordance with
of
lOa msec is
of
131/.1m for
R/W
core width
by
adjustment so
of
the
Cat's eye pat-
to
4 divisions. (Refer
9.
Thereafter, perform
54-6.
Keying
to
I!]~~IRETURNI
to
be
the
1!]@]l!lIRETURNI
TIME/4 DIVISIONS?
COMMAND NUMBER?
RfW
COMMAND NUMBER?
Display
CORE WIDTH?
1!J§IQ]lRETU~NI
MAIN MENU
[I)
SET UP
(2) MEASUREMENT
(3) ADJUSTMENT
Keying
SET DRIVE SELECT 4
INSERT AUGNMENT DISK
HIT [RETURN) KEY
ADJUST CAT'S EYE SIGNAL LEVEL
[MIN (L, R)
[MAX(L, R)
[MAX(L/R,
HIT [RETURN) KEY
that
in
[Q)
to
:t
MEASURING
CALCULATING
CRT,
ADJUST
HIT [RETURN) KEY
Display
> 2 div) AND
< 4 div) AND
R/L)
/
"',.L
\
00
SENSOR
< 1.5)
;-.,
"-
(aJ
\ I
II
/'
""
-43-
Page 42
Measurement Command
Function
5. Check
if
the
TRK
00 sensor
between broken lines
(Refer
to
Fig. 5-4 (e) )
NOTE:
If
not,
key
perform adjustment·
6. Check
if
the TRK
"NO
(When
repeat step
7. Measure
8. Calculate and check
NOTE:
9. End
5-4-j). Adjustment Command
1. Select
Insert
Tum
2.
arrives
the rotary
and starting
eye pattern signal appears. Turning
motor
the
dropped from
amplitude ratio
pattern
eye
NOTE: A ratio
NOTE:.1f
GOOD"
5.)
the
off
track
When
"NO
in
(QJ
to execute step 9.
adjustment in
the
execution in
the
Adjustment command.
the
Alignment disk.
the
rotary
at
the
outmost position. Thereafter,
knob
counter
at
each clicking
with
the
screw fastening
geared driver within
the
of
signal
of
smaller
one
adjustment of the
conducted by
the appropriate position
output
3.5 V and 4.5
in
rID
to execute step
in
00
sensor
output
is
displayed
the
off
track.
GOOD"
is
displayed
accordance
the
Measurement mode.
Function
knob clockwise
clockwise while stopping
the
stepping
stepping
moter
the peak signals
at
1 : 1.2
or
1 :
1.2
is
defmed by identifying the
as
unity.
stepping
using
the geared driver, fust
is set
V.
accOIdance
is
on
on the
Thereafter,
with
54-6.
untn
point
until
the
motor
flange, set
less.
motor cannot be
in
accordance
at
a value
9.
Thereafter,
with
54-6.
satisfactory.
the
CRT,
CRT,
perform
the
head
tum
the
Cat's
the
stepping
range
that
is
on
the
Cat's
with the
key
not
the
fmd
Keying
I RETURN I
IRETURNI
I§IRIIm
IRETURNI
Keying
Display
TRACK 3 XXX VOLT
TRACK 00>01
(Spec:
3.5-4.5)
TRACK 02>01
(Spec :
3.5~4.5)
TRACK
01>00
(Spec:
MAX 0.5): XXX VOLT
MEASURING
CALCULATING
GOOD!
HIT
[RETURN]
SET DRIVE SELECT 4
INSERT ALIGNMENT DISK
IDT [RETURN] KEY
COMMAND NUMBER?
DRIVE SELECT 4
SET
INSERT ALIGNMENT DISK
[RETURN) KEY
HIT
eAT'S
ADJUST
[MIN(L, R)
[MAX(L, R
< 4 div) AND
[MAX(L/R,
HIT [
RETURN]
I
II
"'\1
"-
\
\
1\1
> 3
R/L)
/'
/'
KEY
Display
EYE
divl
< 1.2]
KEY
"'"
(b)
"
(e)
Fig.
"-
54
XXX VOLT
·XXX
VOLT
AND
\
/'
1\/
/~
I
.I
'\I
""""
OK
OK
"
-44-
Page 43
Adjustment Command
3. Set
the
the
peak values
range from 3
NOTE:
4. Measure
5. Calculate
6. Turning
set
the
Cat's eye
the
setscrew and
NOTE: A ratio
NOTE:
7.
Move
the
stepping
8. Check
the
range
If
not,
these
broken
setscrew
(Refer
NOTE:
Function
following
procedure, and perform adjustment
again.
(1)
When
the
waveform
(b),
tum
the rotary knob clockwise.
When
the
(2)
AID
If
the amplitude ratio
than utmost
does not
IRETURNI key
the
the
the
amplitude ratio
pattern
smaller one
Unless
control does not
the
if
the
of
set
with
to
Fig. 5-4
When
repeat step 8. .
waveform
(c),
tum
the rotary knob counterclockwise.
)
converter gain
of
the
Cat's eye
to
4 divisions.
1:
1.2
advance
off
off
stepping
of
the amplitude ratio
TRK
motor).
TRK
broken
the
level nearlest
Jines
nut
"NO
during initializing, control
the step to the next
is
pressed.
track.
track.
motor
of
the
signal
utmost
then
apply
1 : 1.05 is dermed by identifying the
as
unity.
advance
00
sensor
00
sensor
Jines 3.5 V
by
adjustment,
lock paint.
(e»
GOOD"
is
is
as
shown
in
Fig.
is
as
shown
in
Fig.
by
adjustment
pattern
(Refer
is
set at any
with
peak
at
nut
lock
the next step.
board
output
to
to
the
displayed on the CRT,
signal may
Fig. 5-4
value
even
the
geared driver,
signals
I : LOS, fasten
paint
to
is
utmost 1 : 1.05,
outside
(toward
level is within
4.5 V.
center
between
and fasten
so
(d)
on
it.
5-4
5-4
that
)
other
if
the
the
the
Keying
I RETURN I
MEASURING
CALCULATING
RADIAL
ADJUST
[MAX
(L/R,
TIGHT
FIRMLY
ruT
[RETURN)
MOVE
00
SIDE
ruT
ADJUST
HIT
TRACK 3
TRACK 00>01
TRACK
TRACK
4.5
3.5
SENSOR BOARD TO
[RETURN)
'\
I I
Oo.
[RETURN)
(Spec:
3.5-4.5)
02>01
(Spec:
3.5-4.5)
01>00
(Spec:
MAX
I
Vf
----
-----
V-t
----
--
/
Display
A~IGNMENT
R/L)
< 1.05)
KEY
KEY
L
~
(d)
SENSOR
KEY
0.5):
/"
L
-'"
\
II
Fig.
XXX
VOLT
XXX VOLT
XXX
VOLT
XXX VOLT
OUT
~
"'"
5-4
o'K
OK
-45-
Fig.
5-4 Radial Alignment, TRK 00
(e)
Ad·ustment
Page 44
Stepping
Motor
Load
Torque
Function
9;"
Measure the offtraclc.
10. Calculate and check the
5-4·7. Error
measurement: adjustment, or setting
for radial alignment:
a) Not Ready ... Indicates that
b) Not Index Pulse ... Indicates that INDEX signal
c) Cat's Eye Error ... Indicates that the Cat's eye pat-
following statements
Statement
[0)
Statement 2:
[RETURN) FIRST STEP /
then control advances the step
ing the error which has occurred.
ment item
and
measurement and returns
justment mode. Thereafter," key in
same measurement item
NOTE: Check for the disk drive in accordance with
_ 5-5. STEPPING MOTOR LOAD TORQUE
the measurement and adjustment.
Message
One
of
the following errors can occur during
issued. Check for disk drive connection or check
for the DRIVE SELECT switch position.
not issued. Check for disk drive connection.
tern signal
d~.
In
Key in
Thereafter, key in.
Key in
Disassemble
is
addition
to
I:
CONTINUE /
[Q]
when statement m
is executed again.
IRETURNI when statement 2 is displayed,
then control performs the radial alignment
matlon items
ing
the
key-in ill operation.
the
a.
FC-9/FC-14 Mounted Board. (Refer
off
traclc.
of
the machine
READY signal
abnonnal. Check for the alignment
these messages
is
[1)
in
also displayed.
RETRY
[1)
RETRY
to
the next,disregard-
above, one
is
displayed, and
[I] and then the same measure-
to
the initial step in
ill and
is
executed again.
to
the message displayed before retry-
following parts and then perform
is
not
is
"
of
the
the
Ad-
th~n
the
COrull-
to
4-1)
Keying
MEASURING
CALCURATING
GOOD!
HIT [RETURN) KEY
SET
DRIVE SELECT 4
INSERT
HIT [RETURN) KEY
5-5-1. Tools
_ c. Alignment Disk (OR-D47VA)
5-5-2.
5-5-3. Adjustment
-46-
and
Measurement Equipment
a. Oscilloscope
MFD
Checker
b.
d. Tention Gauge
e..
®Driver 2 mm
Measureme~t
a. Push up
b.
Fig. 5-5 Stepping
a.
b.
c.
the
with a spring balance. (Refer
Checlc
if
value in
the
point where the head arm
from the lead screw.
If
the spring balance indicates a force
g
or
less, fasten the setscrew (+P2x3).
it indicates
screw. (Refer
Fix
the setscrew (+P2x3) for
with nut lock paint.
Perform the radial alignment and TRK 00
sensor adjustment. (Refer
Display
AUGNMENT DISK
II
steel plate near
the spring balance indicates a
range
Motor
80
g or more, loosen the set-
to
Fig. 5-5)
of
50 g
is
Load Torque
the
lead screw
to
Fig. 5-5)
to
80 g at the
just separated
of
the
steel plate
to
5-4)
50
If
Page 45
Index Phase
5-6. INDEX PHASE
5-6-1.
Tools
and
Measurement
a.
Oscilloscope
b.
MFD
Checker II
ED
c. Alignment Disk (OR·D47VA)
Em
d.
Alignment Disk (OR-D47WA)
e.
Adj rod.
5-6-2. Measurement
a.
Connect
the
ll. (Refer
b. Insert the alignment disk in place.
c.
Connect the oscilloscope probe tip
CN
5
of
d.
Move
e.
Check if
INDEX signal and
specification shown in Fig. 5-6 (a).
I
j~
j 0
Fig. 5-6
5-6-3.
Adjustment
a.
If
not
on
adj rod tool.
NOTE:
disk drive
to
Fig. 2-1)
107-1 and trigger the oscilloscope at
the
MFD
Checker II.
the
head
the
phase relation between the
tl00jlsec.·
(a)
Index
Phase
the phase relation described above does
meet the specification, adjust RVIOI
the
FC-9/FC-14 Mounted Board with
If
adjustment of
the
specification, the
may
be
damaged.
please
refer
to
TRK 40.
to
output
S·S.
Equipment
Specification
to
the
MFD
Checker
signal meets the
RVIOI
does
not
disk
drive
For the replacement,
RV101
Shield Plate
TP-
satisfy
motor
to
an
5-7. READ AMPLIFIER GAIN
AMPLIFIER
5-7-1. Tools
a.
b. MFD Checker II
Em
c.
Em
d. Level Disk (OR·D46WA)
e. Adj rod
5-7-2. Measurement
a. Connect
b. Connect
c.
d. Insert
_ e. Set
f.
g.
Em
h. Set
Em
i. Press
Em
j.
k. Connect
L
OFF
SET
and
Measuring
Oscilloscope
Level Disk (OR·D46VA)
II. (Refer
to
CNI07-1 built in
other tip (CH-2)
Checker II.
NOTE:
The
Select display only for CH-l.
the
to
head
the
Checker
Press
the
written
Check if
put waveform for
0.35 ± 0.15 V). (Refer
the
Checker
the
written
Check if
put
waveform for
(Refer
to
TP-3 on
Operate
with a timing range
Equipment
the
disk drive
to
Fig. 2-1)
the
os~illoscope
to
vertical
V/dlv
with a timing
oscilloscope
Cn-2.
TRK 79.
SIDE
into
SIDE
into
to
sensitivities
on
Cn·l
range
is
triggered
level disk in place and move the
SELEer
n
to
side
O.
WRITE switch, and then
the
disk.
the
peak.ta-peak value
"2F"
SELEer
n
to
side
1.
WRITE switch, and
the
disk.
the
peak·ta-peak value
"2F"
Fig.
5-7
(a»
the
oscilloscope probe
the
MFD
the
oscilloscope in
of
AND
READ
to
the
MFD
Checker
probe tip (CH-l)
the
disk drive and
TP-5
of
the
are
and
Checker II.
set
at
2 V/dlv
on
of
10
ms/dlv.
by
the
signal
switch on the MFD
"2F"
of
Fig.
5-7
then
of
3S±O
tip
the
chop mode
J.l.sec/div.
the out-
(a) )
"2F"
the out-
.1SV
(CH-2)
is 0.6 ± 0.2 V (Em
to
switch on the MFD
is I O.
0.5
MFD
at
Cn-2
0.2
The
on
is
is
Fig. 5-6 (b) Index
Phase
Adjustment
-47-
(aJ
Em
to.15
V
Page 46
Disk Drive DC Motor Speed
(b)
(e)
Fig.5-7
m.Select "Uncal"
on
oscilloscope and then such a waveform as
shown in Fig. 5-7 (b) can be obtaind.
lED n. Check
_ o. Check
5-7-3. Adjustment
amplifier gain adjustment
Read
a.
if
no jittery pulse follows the trig-
gered one. (Refer
if
or
1 every 2.0 ± 0.2IJsec. (Refer
5-7
(c»
If
the peak-to-peak value
signal output
(_0.35
signal at
to
the pulses are issued from side 0
is
other than 0.6 ± 0.2 V
± 0.15 V), set the
0.6±0.05 V (_
by adjusting RV}02 on the FC-9/FC-14
Mounted Board with an
_ b.
If
the peak-to-peak value
form for
"2F"
o •
35:!:O
(Refer
c.
Perform the Head compliance adjustment.
(Refer
in item j
.15V~
replace the head carriage ass'y.
to
4-14)
to
5-3)
the timing
Fig.
5-7
of
the
0.35±
adj
rod tool.
of
of
the above
axi~
(b»
"2F"
output
of
to
Read
output
0.15
wave-
is
Fig.
V)
not
the
Read amplifier
lED
off
set adjustment
a.
If
any jittery pulses follow the triggered
one, stop jittering at the pulse edge
as possible
14 Mounted Board with an adj rod
_ b.
If
the pulses are issued from side 0
any interval other
the
pulse interval
2.0 ± 0.2 Jlsec by adjusting RVI03 on the
FC·9 Mounted Board with an adj rod
c.
If
adjstment
isfy the spec, FC-9/FC-14 Mounted Baord
must be replaced. (Refer to 4-1)
NOTE: After completion
gain adjustment, perform the read amp-
lifier offset adjustment.
Fig.
5-7 (d)
Read
Amplifier
5-8. DISK DRIVE
5-8-1. Tools and Measuring Equipment
a.
MFD
DC
Checker II
lED b. Level Disk (OR-D46V
_ c. Level Disk (OR-D46WA)
d. Universal Counter
5-8-2. Measurement
a. Connect the disk drive to the
II.
(Refer to Fig.
b. Insert the level disk in place.
c.
Move
the
head until it arrives at TRK 35.
d. Connect
e,
-48-
TP-5
Check
±
1.5
on
if
msec.
the
the
the
by
adjusting RV103
on
the
or 1 at
as
than
2.0 ± 0.2 Jlsec, set
on
both
sides 0 and 1 at
tool
of
a and b above does not sat-
of
the read amplifier
RV103
RV102
Shield
Plate
Gain and
Off
set Adjustment
MOTOR SPEED
AJ
MFD
5-8
(a) )
universal counter probe tip
MFD
Checker
pulses are generated every·} 00
Checker
II.
far
FC-
tool
to
Page 47
Fig.
5-8
(a)
Motor
Speed Measurement
Disk Drive DC Motor Speed
5-8-3 Adjustment
a.
If
the pulses are generated other than every
100±1.5 msec in
disassemble the following parts and then
perform the adjustment.
I.
Main
2.
Front
Em
3. Damper (Refer
Em
4. Head load ass'y (Refer to 4-8)
5. Cassette-up ass'y (Refer
6.
Disk motor (Refer
7.
WP
4-10)
b. Connect the disassembled disk motor
board as shown in Fig.
the
measurement (5-8-2),
cover (Refer
panel ass'y (Refer
arm, D-Detection arm (Refer to
to
to
4-5)
4-7)
to
4~11)
5-8
to
to
(b).
4-2)
4-9)
Fig.
58
(b)
Motor
Speed Adjustment
I
-49-
Page 48
Adjustment
c. Set disk motor control switch
located on FC-9/FC-14 Mounted Board,
side
"A".
d.
Tum
on the unit. Read the value
(Sl02)
of
the
universal counter.
e.
The value may be failed in one
of
the
followillgs.
1.
0 (Not rotate)
100±10 msec
2.
3.
90 'msec or
Replace the parts in accordance with the
flowchart or expression below:
'i)
When the disk motor does not rptate:
(Refer
ii) When the pulses are generated every 100
,±lO
Change the value
to
flowchart 5-8
msec:
less
of
R9 and
(a»
R8
in the fol-
lowing manner:
o PULSE
INTERVAL-lOO<O
R9
(Ul)
=
R8 = 150
kn
1.5
x [100 - PULSEINTERV AL (msec»)
'
o PULSE INTERVAL - 100 > 0
R8(kn)=
150-1.5
x [PULSEINTERVAL(msec)
R9=On
NOTE: Figures marked with # are for a
motor
having
For detail, refer
and electrical parts
o PULSE
R9
(kn) = 1.5
4!R8
o PULSE
#R8
= 160
(kn)
the lot number
to
the circuit diagram
INTERVAL-lOO<O
INTERVAL-
= 160
llst.
x [100 - PULSEINTERVAL (msec»)
kn
100>0
-1.5
[PULSEINTERVAL (msec) - 100)
of
XXXX2.
.
dlsk
R9=On
iii) When the motor speed
high: (Refer
f.
Install all the assembled parts.
g.
Remeasure the motor speed interval and
confirm that it
h.
If
it
is
from the beginning
NOTE: Don't forget to put disk motor control
switch
Mounted Board, back to original position.
to
is 1 OO±
not 1
OO±
1.5
(SI02) located on FC-9/FC-14
is
flowchart
abnormally
5-8
(b»
l.5 msec.
msec, repeat the steps
of
5-8-3. Adjustment.
to
-100)
-50-
Page 49
more than 2 V
FC·9/FC·14 Mounted Board
II
defective.
Troubleshooting Flowchart
YES
mora than 2 V
NO
Dilk
motor
i.
defect;"".
Repeat the 6-8-3
Flowchart 5·8
-51-
(a)
Page 50
Troubleshooting·
Flowchart
FC·9/FC·14 Mounted
Board i. defective.
less
than
50
mVp-p
Disk Motor circuit i. defective.
Replace
(Refer
Power off and check
~,_'"
",
......
the
resistanca
'~lli
.....
,.
~
'---r-.~
the
R9.
to
6-8-3
d·1i)
Repeat
the
6-8-3.
Flowchart 5-8 (b)
-52-
Page 51
Em
5-9_
HL ARM HEIGHT
Disassemble the following parts and then perfonn
the adjustment_
a_
Main
Cover (Refer
5-9-1_
Tools and Measuring Equipment
a.
MFD
Checker II
b.
G:>2
mm Driver
c.
e 2 mm Driver
5-9-2. Measurement
a. Connect the disk drive
II. (Refer
b.
Move
the head until it arrives at TRK 79.
c.
Manually set the machine into the Disk-In
mode. (Refer
Push down the plunger core
d.
load ass'y at point
Pad
to
Fig. 2-1)
Arm
to
to
Fig. 4-9 (a) )
A.
B-a3-a9mm
~
5-9-3. Adjustment
HLArm
==
Fig.
5-9 HL
Arm
Height Adjustment
e.
Check
if
clearance B between the HL
and pad ann
range
a.
If
the gap
of
0.3
is
set at a value within the
to
0.9 mm. (Refer
is
not
within 0.3
loosen the screw which fastens the plunger
solenoid and once push down the plunger
solenoid.
4-5)
to
(Refer
the
MFD'
of
to
to
to
Checker
the head.
Fig. 5-9)
Ann
Fig. 5-9)
0.9 mm,
HL Arm Height
b. Insert a e driver beneath the plunger
solenoid and slowly push
solenoid until clearance B becomes the
specified value. (Refer
c.
Fasten
the
rance B meets
5-10. HEAD CLEARANCE
screw and check again if clea-
the
Disassemble the following parts and then perfonn
the adjustment.
a.
Main Cover (Refer
5-1~1.
Tools and Measuring Equipment
a.
MFD
Checker II
b. Round Nose
c.
Hexagon Wrench Torque Driver
5-10-2. Measurement
a.
Connect the disk drive to the
II. (Refer
b.
Move
c.
Manually set the machine
mode. (Refer
Em
d. After pressing
visually check
Plier
to
Fig. 2-1)
the
head until it arrives at TRK 79.
to
Fig. 4-9 (a) )
the
if
the
head and pad is within 0.1
to
Fig. 5-10
(Refer
Em
e.
After pressing
visually check
both
to
Fig. 5-10
5-1~3.
Adjustment
Em
a.
If
the clearance
bend the HL Arm mounting plate downwards. (Refer
_ b.
If
the clearance
the
if
heads is within
(b»
to
5-10
is
the HL Arm mounting plate upwards.
(~efer
to
FiE::
5-10
Em
c.
If
the
clearance
turn
range,
until
(Refer
Em
d: After completion
the HL Arm adjusting screw
the
clearance
to
Fig. 5-10
the adjusting screw with
(Refer to Fig.
5-10(b»
up
the plunger
to
Fig. 5-9)
specification.
to
4-5)
MFD
into
the Disk-In
HL
Arm twice
clearance between the
to
0.4 mm.
(a»
HL
Arm twice
the clearance between
0.1
to
0.4 mm. (Refer
is
greater than 0.4 mm,
(a»
less than 0.1 mm,
(a»
is
out
of
the specified
is
in the specification.
(b»
of
the
adjustment, fix
nut
lock paint.
Checker
or
more,
or
more,
bend,
Head Cleaning
ta)
Hexagon Wrench
Torque Driver
(b) OA-D32W
Fig.
5-10 HL Arm Height Adjustment
OA·D32V
5-11. HEAD CLEANING
Disassemble
the
following parts and then make the
head clean.
a. Main Cover (Refer
5-11-1. Tools and Measuring Equipment
EE11
a.
Applicator
Em
b. Alcohol
EE11
c.
Cleaning Disk (OR-D29VA)
EmJ
d. Cleaning Disk (OR-D29WA)
e.
MFD
Checker II
EE115-11-2.
'Cleaning with Applicator
a.
Manually lifting the pad arm, scrub the
head surface lightly with an applicator
containing alcohol
b.
Scrub the head surface with a dry applicator. Do not leave fine cotton fibers
the head surface.
5-11-3. Cleaning with Cleaning Disk
a.
Connect the disk drive
(Refer
to
Fig. 2-1)
Move
the
b.
c.
head until it arrives at an unused
track
of
the
cleaning disk.
Set the cleaning disk in place, and hold it
for about
10
cleaning disk.
NOTE:
NOTE:
seconds. Thereafter, eject the
Do not
Do
not
reuse
of
effect
on
Cross
out
a
cleaning
example,
Cleaning Disk
Check Column
j:ji(
03
s><.
12 13 14
22 23
32 33
42 43
52
53
62
63
72
73
OR-029VA
04
24
34
44
54
64
74
w
10
11
21
20
30
31
41
40
50
51
60
61
70
71
to
use
any
reuse
any
the
track
the
head.
numbers
disk
for
avoiding
06
05
16 17 18
15
26
25
35 36
45 46 47
55 56
66 67 68
65
76
75
4-5)
to
MFD
scratched
used
weakens
of
the
label,
reusage.
07
27
37
57
77 78
Checker II.
cleaning
track
the
cleaning
used
tracks
shown
08
09
19
28
29
38
39
48
49
58
59
69
79
disk.
because
on
in
the
on
-53-
-54-
Page 52
~
"U
»
::IJ
~
l>
en
en
.(
r-
0
0
"tJ
»
»
-f
:tJ
(5
....
z
en
r-
0
12
I
(J1
(J1
I
11
0
»
-I
0
Z
»
Z
C
r-
en
-I
(5
»
C
w
~
en
m
0
-I
0
Z
en
."
Q)
...
r+
en
»
en
en
<
~
0
n
Q)
r+
0"
:l
--
."
Q)
...
r+
en
»
en
en
--
<
~-
0
n
Q)
r+
0"
:l
PS
9
W2.6X6
I
(J1
c»
I
~
I
i
PSW2.6 x
6"'"'=-
___
~
Page 53
6-2.
MECHANICAL
NOTE:
1.
Parts printed
stocked
ing
required
parts
cessed,
parts
not
fOI
replacement
shown
for
shown
but
allow
PARTS
in
Bold·Face type
in
this
routine
service
in
Bold·Face type
for
LIST
purposes.
list
wOlk.
additional
are
are
The
not
Orders
will
delivery
normally
lemain-
normally
for
be
Pl()'
time.
Mechanical Parts
LiS1
Parts No.
No.
A·8010·049·A
A·8010-014·B
4-601-076-00 Lead Serew
3
4-601-083-00 Compression Spring
4
4-601-097-00
8·838·025·11
8·838·061-01
7 A-8010-024-A
8 A·80 10·025·A
4-603·921·00
10 4-603·922·00
11
4-603·923-00
12 A·801 O-026·A
4-601-096-00
13
14 4-603·901·00
15 4-604-062·00
4-847·057-00
16
17
A·8050-001-A
18
3·659·609·00
19
4-601·003-00 Slide Guide Shaft
20 4-601·008-03
4-603-926-00 Guide Retainer (C)
21
4-601-009-03 WPArm
22
4-601-050-04 Blind Panel
23
24
4-601-098·00
4-603-916-00 HC-Harness Holder
2S
4-603-924-00 Damper
26
4-603·925-02 Terminal Shield Plate
27
4-603-927-00 D-Deteetion Arm
28
7-623·520-01 Lug, 3
29
30
8·838·050·01
31 A·8050-002-B
1·605-400-00
32
4-601·027-00 Cushion
33
34
8·719·900-92 GL·9PR20
A·8051-042-A FC·9 Complete
35
4-601-026-11
36
37 4-603-928·00
4-603-929-00 Transport Cassette Dummy
38
X-4601-029-1
39
X·4601·043-1
4-601-052·12
40
4-601·060-00
41
Description
Lead Screw
Coupling
Ass'y
Ass'y
Thrust Bearing
Stepping
Motor
Stepping
Motor (SNS.1500A)
Head Carriage
Head Load
Ass'y
HLArm
HL
Arm Shaft
Torsion Spring
Cassette-up Ass'y
Tention Spring
Tension Spring
Eject Arm
Tension Spring
Mounted Board
Sensor
Compression Spring
Guide Retainer (A)
Ball Bearing (No Flange)
Disk Drive Motor (BHC·210IA)
LED
Mounted Board Ass'y
LED
Mounted Board
Main Cover
Shield Plate
Front
Panel Ass'y (OA-D32W)
Front
Panel Ass'y (OA·D32W·1O)
Eject Button
Compression Spring
(SNS·II
Ass'y
PCB
OOA)
Parts No.
7-621·972·25
7.621-972-4~,
7·621-981·15
7-621·981·25
7-621·912-20
7·621·731·08
Description
SCREW, TOTSU PS2.6 x 6
..
SCREW, TOTSU PS2.6 x 10
SCREW, TOTSU PSW2.6
SCREW, TOTSU PSW2.6 x 8
SCREW, TOTSU B2.6 x 5
SET-SCT,
FLAT