PART.
1
1. INTRODUCTION
This service manual consists
of
two
parts. Part 1 covers maintenance description, adjustment procedures,
and
trouble
analysis and Part 2 covers disassembly and reassembly procedures, parts list, and
PCB
circuits.
Refer
to
the
highlighted applicable items, and perform maintenance
work
on
the
Floppy Disk Drive (FDD).
Note:
This service manual
is
prepared
for
maintenace
of
the
Floppy Disk Drive.
Do
not
use
this
manual
for
judging
pass
or
fail criteria in inspections.
2. MODELS
AND
MODEL NUMBERS
2.1
3.5-inch
FOO
Series
::::::ii!~j~ji,~.:~B~·
..
:iii:,,_;
--------...--
67.5TPI
----
L_,,_:'
-~-
JU-31X
----.--
JU-312
c=
JU-313
L_
JU-314
JU-32X JU-322
E
JU-323
JU-323A
JU-324
JU-36X JU-362
E
JU-363
JU-363A
JU-364
JU-38X
----
JU-386
JU-39X
----
JU-394
::1:1:1:1?:~~~:?:~::::::::,
...
:
-...,---
JU-252A
JU-253A
•
3. SPECIAL TOOLS
The
following
special tools are used
for
FDD
maintenance.
TABLE 3.1
P/No.
Tool
JU-252A
JU-31 X,32X,36X,
JU-253A
JU-323A,363A
*~
..
~
*~
*~
*~
*~
*~
*~
*~
*~
*~
YTFDD-SB35
Test Pin Jig For
PCB
YTFDD-TPIN25 YTFDD-TPIN35
DAD
Alignment
Tester
Oscilloscope
(SOM
Hz}
Probe (10:1)
Frequenc
Counter
Note:
*~
:
Standforthesameasleft.
DAD
:
Dynamic
Alignment
Diskette
CE
: Cats Eye
-1-
JU-38X
JU-39X
2DD I 2HD
Quantity
1-2
1-2
3
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