Sign In
Upload
Download
Table of Contents
Contents
Add to my manuals
Delete from my manuals
Share
URL of this page:
HTML Link:
Bookmark this page
Add
Manual will be automatically added to "My Manuals"
Print this page
×
Bookmark added
×
Added to my manuals
Manuals
Brands
CalComp Manuals
Floppy Disk Drive
142
Technical manual
CalComp 142 Technical Manual
Hide thumbs
1
2
3
Table Of Contents
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
page
of
109
Go
/
109
Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
Section Page
Introduction
Description
Physical and Electrical Characteristics
Special Tools and Test Equipment
2 Installation and Operation
Unpacking
Installation
Ac Power Cable
DC and Signal Cabling
Data Output Selection
Checkout
Operation
Floppy Disk Storage and Handling
Write-Protect Option
Floppy Disk Loading and Unloading
Data Recording Method
Peak Shift Precompensation
Track Accessing
Read Data Timing
Write Data Timing
Power-On to Data Transfer
3 Theory of Operation
Functional Areas
Control System
Disk Drive General Block Diagram
Positioning System
Read/Write System
Mechanical System
Drive Mechanism
Disk Centering Mechanism
Head Load Mechanism
Positioning Mechanism
Disk Centering and Head Load Mechanism
Positioning Mechanism
Logic Symbology and Definitions
Detailed Logic Description
Control Logic
Logic Symbology (Sheet 1 of 2)
Ramp Generator
Head Load Relay Driver
Read/Write Head Positioning Logic
Stepper Motor Position Control Simplified Logic Diagram
Stepper Motor Direction Sequencing
Read/Write Logic
Track 00 Detector Circuit
Write Channel, Simplified Logic Diagram
Raw Data Output Gating
VDC Regulator Description
One-Shot Data Decoders
Read Decoder with PLO Assembly
RAW and NRZ Read Data Decoder Waveforms
Read Decoder with PLO Block Diagram
Data Decoder Waveforms
Normal PLO Operation
Missing-Pulse PLO Operation
Sync-Up PLO Operation
Data Decoder
Read Sync
4 Maintenance
Preventive Maintenance
Monthly (Covers On)
Semiannually (Covers Removed)
Disk Drive Exerciser
Controls~ Indicators~ and Test Points
Preparation for Offline Checkout
Disconnecting the Exerciser
Maintenance Procedures
Tools and Test Equipment
Plugs and Jacks
PWB Assembly Data and Control
PWB Replacement
Power
Drive System
Position System
Read/Write System
Data Decoder with PLO Board Adjustments
5 Illustrated Parts Breakdown
Group Assembly Parts List
Part Number
Description
Quantity Per Assembly
Advertisement
Quick Links
Download this manual
CalComp Model 140 & Model 142
Floppy Disk Drives
Technical Manual
Table of
Contents
Previous
Page
Next
Page
1
2
3
4
5
Advertisement
Table of Contents
This manual is also suitable for:
140
Table of Contents
Print
Rename the bookmark
Delete bookmark?
Delete from my manuals?
Login
Sign In
OR
Sign in with Facebook
Sign in with Google
Upload manual
Upload from disk
Upload from URL
