Table of Contents
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Section
Number
3.7
SECTION 4
4.1
4.2
4.3
4.4
4.5
4.6
SECT ruN 5
5. 1
5.2
5.3
5.4
5.5
CONTI<;NTS
'Ii tle
Motor Select ,Jumper
Write Protect (WI)
Head Type (W2, W3)
W4 Through W8
Side Select (W9)
Motor On (WI)
Diskettes • • •
Loadiny The Diskette
Write Protect Tab
Diskette Handling and Storage
THEORY Of OPERATION
Introduction
Data Recording .
Components Of The Drive
Generate and Interpret Control Signals
Index Sensor
Write Protect Switch
Track 0 Sensor
Drive Select
Read/Write Head Positioner
Step and Direction
Stepper Motor Control
Stepper Motor.
Read/Write Data
Read/Write Head Assembly
Side Select Circuits
Write/Erase Circuits
Read Data Circuits
Spindle Control
. . • .
Spindle Motor and spindle Assembly
Spindle Motor Enable Circuit
Spindle Motor Control Circuit
Diskette Enabled Switch (Door Lever)
MAINTENANCE CHECKS AND ADJUSTMI<;NTS
Introduction
Visual Inspection
Equipment Required
Power Drive Select Check
Write Protect Switch Check and Adjustment
write Protect switch Check
Write Protect switch Adjustment • .
Drive Motor Speed Check and Adjustment
Drive Motor Check .
Drive Motor Adjustment
ii
Paye
Number
3-11
3-11
3-11
3-11
3-11
3-12
3-12
3-12
3-13
3-13
4-1
4-1
4-4
4-4
4-4
4-5
4-5
4-6
4-7
4-7
4-8
4-8
4-8
4-8
4-8
4-9
4-12
4-12
4-13
4-13
4-14
4-14
5-1
5-1
5-2
5-3
5-4
5-4
5-4
5-4
5-4
5-5
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