Introduction; Models And Model Numbers; Inch Fdd Series; Special Tools - Panasonic JU-475-4 Service Manual

PART. I
1. INTRODUCTION
This service manual consists of two parts, Part I covers maintenance description, adjustment
procedures, and trouble analysis and Part II covers disassembly and reassembly procedures, parts
list, and PCB circuits.
Part I encompasses maintenance instructions for all Floppy Disk Drive (FOO) models. Refer to the
highlighted applicable items, and perform maintenance work on the FOD.
Note: This service manuals is prepared for maintenance of the FOO.
Do not use this manual for judging pass or fail criteria in inspections.
2. MODELS AND MODEL NUMBERS
48TPI
-c
JA-551
JU-455
2.1 5.25inch FDD Series
Itlill
3.
SPECIAL TOOLS
96TPI
JA-56X
-c
JA-560
JA-561
JU-58X
-c
JU-581
. JU-585
JU-595
JU-465
~~~1~lgtl!l:l~111[
The following special tools are used for FDO maintenance.
Table
3 - 1
Special Tools
Part No.
Tool 5.25 inch (48TPI)
i l i l ! l l l l ! i ! l ! i l l i l l ! I I I ! ! ! I ! ! i l ! ! I ! ! ! ! ! I ! I I ! ! ! I I ! I I ~ 1 ! l j ! ~ I ! f ~ I ! ! ~ ! i I I J I ! I ! ! ! I ! l l ! ! I ! ! ! I ! ! I ! ! i ! ! ! l l i l ! ! i ! ! ! i ! ! ! ! ~ l ! l ! i ! ! ! ! !
Quantity
JA-551/ JU-455 JA-561/ JU-465
i!l!lil!9fiilllrl~lllgI111~!11!1
FOD-EXT-35 Exerciser
Alignment diskette
Data diskette
Oscilloscope (50 MHz)
Probe(10: 1)
Frequency counter
817-128
2D
817-560
2DO
1-2
1-2
3
Note:
*~:
Stand for the same as left.
-1 -