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
Lear Siegler Manuals
Touch terminals
ADM-3
Maintenance manual
Lear Siegler ADM-3 Maintenance Manual
Dumb terminal
Hide thumbs
1
2
Table Of Contents
3
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
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
page
of
148
Go
/
148
Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
1 General Description
Introduction
Capabilities
Physical Description
Specifications
2 Installation
Setting Internal Switches
Figure
Internal Switches and Controls
Front Panel Switches
Setting Front Panel Switches
Setting Display Controls
Connecting Cables & Turning on Power
Background Intensity ·Control
3 Operation
General
Special Function Keys
Programming and Word Structure
Remote Control Functions
Data Transmission Format
4 Theory of Operation
General
General Functional Description
Display Generation
Display Refresh Operation
Monitor Video and Drive Circuits
Receiving and Storing Data
Cursor Generation
Keyboard Logic
Data Transmitter Logic
CRT Display Matrix
Interface Control Logic
CRT Display Monitor
Logic Description
General Clear Circuit
Display Counters
Display Counters, Block Diagram
Display Counter Timing
Offset Counter Logic
Offset Counter Logic, Block Diagram
Cursor Control Logic
Memory Address Logic
Clear Screen Timing
Cursor Control Logic, Block Diagram
Memory Address Logic, Block Diagram
Refresh Memory and Character ROM Logic
Erase Logic
Write Pulse Logic
Keyboard Logic
Keyboard Logic Timing
Beeper Logic
Data Receiver and Command Decoder Logic
Data Transmitter Logic
Data Transmitter Logic, Block Diagram
Video Blanking and Serializer Logic
Video Blanking and Serializer Logic, Block Diagram
Monitor Drive Logic
Baud Rate Select Logic
Baud Rate Select Logic, Block Diagram
Interface Control Logic
Code Turnaround Control
Reverse-Channel Control
Power Supplies
CRT Display Monitor
Interface Timing for Code Turnaround
Interface Timing for Reverse-Channel Operation
Extension Current Loop
5 Maintenance
General
Installation
Routine Maintenance
Opening Adm-3 Cover
Adjustments
Contrast Adjustment
Brightness Adjustment
Low Voltage Supply
Interface Connector Terminal Assignments
Vertical Adjustments
Horizontal Adjustments
Focus Adjustment
Centering
Corrective Maintenance
Failure Analysis
Troubleshooting the Monitor
Removing and Replacing Monitor CRT and Subassemblies
Inputs to Monitor, Timing Diagram
Troubleshooting the Main Circuit Board
Removing and Replacing the Main Circuit Board
Removing and Replacing Key Switch Contacts
Drawings
SCHEMATIC SHEET #2 - System Counters
SCHEMATIC SHEET #11 - Interface Control
Interface Control
Display Counter Timing
Interface Timing for Code Turnaround
Interface Timing for Reverse-Channel Operation
Schematic Sheet #3
Offset Counter
Cursor Registor
Beeper Circuit
SCHEMATIC SHEET #4 - Memory Address Generation
Schematic Sheet #5- Data Receiver/Decoder
Manipulation of Display Address
Organization of Display Data in Refresh Memory
Schematic Sheet #6
Clear Circuit
Read Back
Monitor Drive Signals
Cursor Generation
Schematic Sheet #7
Refresh Memory
Character Generators
Video Serializer
Transmit Data Multiplexers
Schematic Sheet #9
Data Transmitter
Control Section of UART
Current Loop SMTR/RCVR
Schematic Sheet #10- Baud Rate Generation
Baud Rate
Crt Display Monitor
Monitor Circuit Board Components Location
Board Assembly
Circuit Board Front
Circuit Board Back
Parts List
Returning Equipment for Repair
Paint
Power Supply
Advertisement
Quick Links
Download this manual
ADM-3
DUMB TERMINAL
MAINTENANCE MANUAL
Table of
Contents
Previous
Page
Next
Page
1
2
3
4
5
Advertisement
Table of Contents
Troubleshooting
Troubleshooting the Monitor
54
Troubleshooting the Main Circuit Board
58
Need help?
Do you have a question about the ADM-3 and is the answer not in the manual?
Ask a question
Questions and answers
Related Manuals for Lear Siegler ADM-3
Touch terminals Lear Siegler ADM 3A User's Reference Manual
Dumb terminal, video display terminal (54 pages)
Touch terminals Lear Siegler ADM-3A Operator's Manual
Interactive display terminal (45 pages)
Touch terminals Lear Siegler ADM 3A User's Reference Manual
Video display terminal (54 pages)
Touch terminals Lear Siegler ADM 3A User's Reference Manual
Video display terminal (54 pages)
Touch terminals Lear Siegler ADM 36 User's Reference Manual
Video display terminal (85 pages)
Touch terminals Lear Siegler ADM 5 Maintenance Manual
Dumb terminal video display (158 pages)
Touch terminals Lear Siegler ADM-2 Maintenance Manual
(212 pages)
Touch terminals Lear Siegler ADM 22 User's Reference Manual
Video display terminal (62 pages)
Touch terminals Lear Siegler ADM-42 User's Reference Manual
Data display terminal (126 pages)
Touch terminals Lear Siegler ADM 11 User's Reference Manual
With emulations video display terminal (87 pages)
Related Products for Lear Siegler ADM-3
Lear Siegler ADM 3A
Lear Siegler ADM 36
Lear Siegler ADM 5
Lear Siegler ADM-2
Lear Siegler ADM 22
Lear Siegler ADM-42
Lear Siegler ADM 11
Lear Siegler ADM 12
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
Need help?
Do you have a question about the ADM-3 and is the answer not in the manual?
Questions and answers