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FD1165
Maintenance manual
NEC FD1165 Maintenance Manual
Flexible disk drive
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Maintenance manual
(100 pages)
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Contents
Table of Contents
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Table of Contents
Table of Contents
Chapter 1 General Information
Descri Ption
Construction and Features
Base Frame
Spindle Assembly
Fdl165 Flexible Disk Drive
DC Direct Drive Spindle Motor
Carriage Read/Write Assembly Heads
Stepping Motor
Head Load Cam Assembly
Pop-Up Feature
Index Sensor
Track Sensor
Write Protect Sensor
Media-In Sensor
Collet Assembly
Printed Circuit Board (PCB)
Variable Frequency Oscillator (Optional)
Display Lamps
Front Panel
Movable Door Handle
Door Lock Solenoid
Specifications
Fdl165 Specifications
Chapter 2 Installation and Operation
Preliminary Inspection
Unpacking and Repacking
Unpacking Procedure
Repacking Procedure
Preinsta11Ation Inspection
Environmental Requirements
Operating Environment
Space and Weight Data
Mounting
Unpack I Ng
Model Fdl165 Physical Dimensions
Vertical Installation
Horizontal Installation
On-End Installation
Air Flow Requirements for Natural Air
POWER Supply
Power Supply Specifications
Power Connector
Power Connector Part Number
Power Connector Pin Assignments
Power Connector Location
Pin and Line Assignments for the Power Connector
Interface Connection
Contact Arrangement for Edge Connector
Interface Connector
Terminator Resistors
Data and Control Interface Contact Assignments
Terminator Resistors and Jumper Locations on the PCB
Parallel and Series Configurations
Drive Identification (DX) Selection
Option Selection
Head Load Jumper (HL)
Radial Ready Jumper (RX)
Side Select Jumper (SS)
Write Protect Jumper (PR)
File Unsafe Jumper (FR)
Door Lock Jumpers (DL, DR, DH)
DR Jumper
DL Jumper
DH Jumper
In Use Pins (US)
Read Data Pins (RD)
Busy Lamp Jumpers (BU, BS)
Busy Lamp on During Head Load
Door Lock Jumper Combinations
Busy Lamp on During Drive Select
Busy Lamp on During in Use
OPERATING the Fdl165
Inserting a Flexible Disk
Closing the Door of the Fdl165
Removing a Flexible Disk
Display Lamps
Ready Lamp
Unlocking the Door and Removing the Flexible Disk
Busy Lamp
Chapter 3 Interface Information
Basic Operational Description
Electrical Interface
Signal Levels
Driver/Receiver Circuits
Dr I Ve R /R Ece I Ve R CI R Cui T S
Interface Lines
Interface Lines
Input Signals
Head Load (HDL)
Step (STP)
Direction Select (DIR)
Side Select (SSL)
Step Signal Timing
Write Gate (WGT)
Write Data (WDT)
Low Write Current (LWC)
WGT Timing
File Unsafe Reset (FUR)
In Use (USE)
Output Signals
Index (IDX)
Write Data Signal Ximing
Track 00 (TKO)
Dual-Sided (TSD)
Ready (ROY)
File Unsafe (FUS)
Read Data (ROT)
Write Protect (PRT)
Disk Change (DCG)
Read Data Signal Timing
Vfo Interface Signals
Modified Frequency Modulation Mode
VFO Synchronization (SYC)
Standardized Read Data (SRD)
Window (WID)
Disk Change Signal Timing
Interface Timing
Power on Sequence
Drive Select
Step and Track 00
Step and Track 00 Timing
Access
Write
Read
Read Timing
Maintenance Parts
Maintenance Tools
Chapter 4 Maintenance
Removal and Replacement Procedures
PCB Removal
Collet Assembly Removal, Replacement, and Adjustment
Removing the Collet Assembly
Replacing the Collet Assembly
Head Unload Spring in Relation to Spring Plate
Position of the Spring Plate
Carriage Assembly Removal and Replacement
Carriage Assembly Position on the Base Frame
Head Load Cam Assembly and Head Load Removal and Replacement
Write Protect Sensor and Media-In Sensor Removal and Replacement
Installing the Head Load Cam Assembly
Optical Tachometer Sensor Removal and Replacement
Write Protect or Media-In Sensor Connections
Installing the Write Protect or Media-In
Sensor
Removing the Replacing the Optical
Tachometer Sensor
Figure
Removing the Sensor Cable Assembly
Sensor Cable Assembly
Installing the Index Sensor
Removing and Replacing the Carbon Brushes
Removing a Carbon Brush
Armature Removal
Removing the Armature
Spindle Assembly Removal
Removing the Spindle Assembly
Front Panel Removal
Picker Rod Removal and Replacement
Removing the Front Panel
Pop-Up Assembly Removal and Replacement
Adjusting the Picker Rod
Guide Rail Removal
Checking the Operation of the Pop-Up Feature
Removing the Pop-Up Assembly and Guide Rail
Door Lock Solenoid Removal and Replacement
Removing the Door Lock Solenoid
Adjusting the Door Lock Solenoid
Chapter 5 Adjustments
Adj Ust.ments
Diagnostic Tests
Location of Diagnostic Test Pins and Test Points
Auto Tap Test
Auto Seek Test
Auto Seek and Auto Tap Test
HEAD UNLOAD Delay
Test Points
Adjustments and Checks Using the Alignment Flexible Disk
Test Points and Signals
Head Radial Alignment Check or Adjustment
Head Radial Alignment Oscilloscope Settings
Head Radial Alignment Waveform
Azimuth Check
Adjusting Head Radial Alignment
Head Azimuth Oscilloscope Settings
Index Alignment Check or Adjustment
Index Alignment Oscilloscope Settings
LED Assembly/Index Assembly Check and Adjustment
Index Alignment Waveform
00 Track Sensor Check or Adjustment
Track 00 Signal
Write Protect Sensor Check or Adjustment
Head Load Check
Trim Pots
Head Load Waveform
Fdl165 Flexible Disk Drive
G9NYF PCB Assembly
Table
Title
List of Illustrations
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Descri Ption
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FDl165
Flexible Disk Drive
Maintenance Manual
NEe
NEe Info,mation Systems,lnc.
819-000090-2001
10-82
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