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Panasonic Manuals
Floppy Disk Drive
JU-475-4
Service manual
Panasonic JU-475-4 Service Manual
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Service manual
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Service manual
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Service manual
(33 pages)
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Contents
Introduction
Models and Model Numbers
Special Tools
Outline of Maintenance
Diagnostic Procedures
Alignment Diskette
Exerciser
Trouble Analysis
Read Error
Seek Error
Interchangeability Error
Troubleshooting Flor Chart
Trouble Analysis Table
Preventive Maintenance
Specifications
Adjustments and Verifications
Motor Speed Verification
Write Protect Verification
Head Output Verification
Output Modulation Verification
Resolution Verification
Radial Alignment Verification and Adjustment
Azimuth Verification
Radial Alignment Waveforms
Stepper Motor Mounting Screws
Azimuth Waveforms
Index Burst Verification and Adjustment
Track 0 Sensor Adjustment
Track 0 Waveform
Track 0 Adjustment
Asymmetry Verification
Test Points
Printed Circuit Board
Panasonic Alignment Diskette
Removals and Installations
PCB Removal and Installation
Caution of the Cable Leading
Front Plate and Handle Removal and Installation
Track 0 Sensor Assembly Removal and Installation
Collet Assembly Removal, Installation and Adjustment
Clamp Assembly Removal and Installation
Write Protect Sensor Assembly
Cartridge Guide Assembly Removal and Installation
Stepper Motor Assembly Removal and Installation
Head Carriage Assembly Removal and Installation
Pig Tail Leading
Mounting of the Pig Tail Clamp
Drive Motor Removal and Installation
Pail Tail Leading
LED Assembly Removal and Installation
Lifter Unit Removal and Installation
Media Lifter Removal and Installation
Media Sensor Assembly Removal and Installation
Exploded View
Replacement Parts List
Schematic Diagram
Circuit Board
Component Side
Solder Side
Block Diagram
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1
Introduction
2
Models and Model Numbers
3
Specifications
4
Circuit Board
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