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Canon A-1 Repair Manual

Also See for A-1

Instructions manual - 105 pages
Instruction manual - 89 pages
Service manual digest - 28 pages

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Contents
Table of Contents
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Download this manual See also: Service Manual Digest, Instruction Manual

Table of Contents

2
Introduction
2
Features
2
Five Difference Automatic Exposure Modes
2
The Employment of Total Digital System to Process With Speed and Accuracy All Incoming Information
3
Full Information Character Display Viewfinder
3
Expanded Range and Versitility
3
Essential Controls and Displays Grouped for Easy Reach and Rapid Operations
3
Human Engineering, Miscellaneous
4
Specifications
4
Type
4
Interchangeable Lenses
4
Viewfinder
5
AE Function
9
Power Source
10
Shutter Mechanism
10
Self-Timer
12
Loading the Film
13
Multiple Exposures
13
Camera Body
14
Dimensions and Weight
14
Related Accessories
15
Main Features
15
Finder
15
Viewfinder Optics
16
Field of Vision for the Viewfinder
16
Viewfinder Information (Character Display Viewfinder)
19
Display Indication in 1/2 Step Increments
20
Numerals and Characters to Be Displayed
21
Change in the Brightness of the Subject and Display
22
Summary
25
LED Illumination
28
Camera Controls
30
Canon Functional Block Diagram
31
Block Diagram of Computer Integrated Into Control System
34
Comparison Between the Isolated I2L and Pure I2L
35
Electronic Circuit Characteristics
35
Block Diagram for Dual Ramp Analog to Digital Converter
36
Timing Chart for the Dual Ramp AD Converter
42
Filming Chart of Lighting
44
Static and Dynamic Display System
47
PLA of the A-1
49
Bus Line of 8-Bit Signals
50
Bus Line
52
Physical Properties and Layout of Electrical Components
54
Block Diagram of Circuit Boards
55
Layout of Circuit Boards
57
Diode Array Diagram
59
Segmented Aperture Value Electrode Plate
61
Mini Connector
61
Mini Connector (Cross Section)
62
Mechanisms
63
MD Coupler
65
Multiple Exposure Mechanism
67
Operational Flow Chart
68
Operational Flow Chart Details
72
A-1 Flow Chart
74
Technical Comments
74
Quality Criteria
75
Repair Quality Assurance
76
Special Precautions
78
Switch Table
80
Exposure Timing Chart
82
TV Code
83
AV Code
84
AVO, AVC Codes
85
SV Code
86
Cntl
87
Disassembly
87
AT Dial
87
Winding Lever
87
Shutter Button
88
Top Cover
88
Base Cover
89
Front Panel Unit
90
Connectors
90
Reassembly and Adjustment
91
Spool Torque
91
Shutter Unit Installation Adjustment
92
2Nd Curtain Latch Charge Torque
92
2Nd Curtain Latch Lever Release Torque
92
2Nd Curtain Latch Set Position
93
Shutter Speed Adjustment
94
X Sync Timelag
94
X Contact - Safety Contact Timing
95
Flash (X) Synchronization
96
Mirror Bounce Brevention Lever
97
Flush Pattern Position Adjustment
98
AVO Brush Stopper Position (F/S.6 Maximum Aperture Position)
98
Maximum Aperture Signal Pin Adjustment (Front Panel Only)
99
Maximum Aperture Singal Pin Adjustment (Assembled Camera
99
Maximum Aperture Signal Pin Code
99
AV Brush Position (AE Charge (AECG) Position)
101
Compound Gears Installation
102
Preliminary Perforation Position
103
Winding Shaft Installation
104
Charge Gear Installation
105
Perforation Adjustment (Final)
105
SW5-SW5' Adjustment
106
A/T Dial Base Assembly
107
Multiple Exposure (ME) Lever Adjustment
108
Eyepiece Shutter Adjustment
108
SPC Output Adjustment
110
ASA Brush Adjustment
110
Diaphragm Accuracy Check
111
Viewfinder Display Adjustment
111
Focusing Screen Replacement
112
Pentaprism
113
Viewfinder Mask Installation
114
Body Parts Lubrication
114
Sprocket Mechanism
114
Spool Mechanism
114
Wind / Rewind Mechanism
116
Miscelleanous
117
Shutter Unit Lubrication
118
Front Panel Unit Lubrication Chart
119
Circuit Operation (Signals and Waveforms)
120
Opt IC (Sn28724)
120
NPUT IC (Sn2872L)
128
Cpu IC (Sn28720)
129
Ctst (2P)
146
Decoder Drive IC (SN28723)
148
Sample Waveforms
149
Integrated Circuit Replacement and Adjustment
150
OPT IC Adjustment
151
OSC INTERFACE IC Adjustment
153
INPUT IC Adjustment (A/D NULL Adjustment)
154
Decoder Driver IC Adjustment
155
Service Tools List
158
Parts List
172
Wiring Diagram

Canon A-l Repair Guide

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Table of Contents

2
Introduction
2
Features
2
Five Difference Automatic Exposure Modes
2
The Employment of Total Digital System to Process With Speed and Accuracy All Incoming Information
3
Full Information Character Display Viewfinder
3
Expanded Range and Versitility
3
Essential Controls and Displays Grouped for Easy Reach and Rapid Operations
3
Human Engineering, Miscellaneous
4
Specifications
4
Type
4
Interchangeable Lenses
4
Viewfinder
5
AE Function
9
Power Source
10
Shutter Mechanism
10
Self-Timer
12
Loading the Film
13
Multiple Exposures
13
Camera Body
14
Dimensions and Weight
14
Related Accessories
15
Main Features
15
Finder
15
Viewfinder Optics
16
Field of Vision for the Viewfinder
16
Viewfinder Information (Character Display Viewfinder)
19
Display Indication in 1/2 Step Increments
20
Numerals and Characters to Be Displayed
21
Change in the Brightness of the Subject and Display
22
Summary
25
LED Illumination
28
Camera Controls
30
Canon Functional Block Diagram
31
Block Diagram of Computer Integrated Into Control System
34
Comparison Between the Isolated I2L and Pure I2L
35
Electronic Circuit Characteristics
35
Block Diagram for Dual Ramp Analog to Digital Converter
36
Timing Chart for the Dual Ramp AD Converter
42
Filming Chart of Lighting
44
Static and Dynamic Display System
47
PLA of the A-1
49
Bus Line of 8-Bit Signals
50
Bus Line
52
Physical Properties and Layout of Electrical Components
54
Block Diagram of Circuit Boards
55
Layout of Circuit Boards
57
Diode Array Diagram
59
Segmented Aperture Value Electrode Plate
61
Mini Connector
61
Mini Connector (Cross Section)
62
Mechanisms
63
MD Coupler
65
Multiple Exposure Mechanism
67
Operational Flow Chart
68
Operational Flow Chart Details
72
A-1 Flow Chart
74
Technical Comments
74
Quality Criteria
75
Repair Quality Assurance
76
Special Precautions
78
Switch Table
80
Exposure Timing Chart
82
TV Code
83
AV Code
84
AVO, AVC Codes
85
SV Code
86
Cntl
87
Disassembly
87
AT Dial
87
Winding Lever
87
Shutter Button
88
Top Cover
88
Base Cover
89
Front Panel Unit
90
Connectors
90
Reassembly and Adjustment
91
Spool Torque
91
Shutter Unit Installation Adjustment
92
2Nd Curtain Latch Charge Torque
92
2Nd Curtain Latch Lever Release Torque
92
2Nd Curtain Latch Set Position
93
Shutter Speed Adjustment
94
X Sync Timelag
94
X Contact - Safety Contact Timing
95
Flash (X) Synchronization
96
Mirror Bounce Brevention Lever
97
Flush Pattern Position Adjustment
98
AVO Brush Stopper Position (F/S.6 Maximum Aperture Position)
98
Maximum Aperture Signal Pin Adjustment (Front Panel Only)
99
Maximum Aperture Singal Pin Adjustment (Assembled Camera
99
Maximum Aperture Signal Pin Code
99
AV Brush Position (AE Charge (AECG) Position)
101
Compound Gears Installation
102
Preliminary Perforation Position
103
Winding Shaft Installation
104
Charge Gear Installation
105
Perforation Adjustment (Final)
105
SW5-SW5' Adjustment
106
A/T Dial Base Assembly
107
Multiple Exposure (ME) Lever Adjustment
108
Eyepiece Shutter Adjustment
108
SPC Output Adjustment
110
ASA Brush Adjustment
110
Diaphragm Accuracy Check
111
Viewfinder Display Adjustment
111
Focusing Screen Replacement
112
Pentaprism
113
Viewfinder Mask Installation
114
Body Parts Lubrication
114
Sprocket Mechanism
114
Spool Mechanism
114
Wind / Rewind Mechanism
116
Miscelleanous
117
Shutter Unit Lubrication
118
Front Panel Unit Lubrication Chart
119
Circuit Operation (Signals and Waveforms)
120
Opt IC (Sn28724)
120
NPUT IC (Sn2872L)
128
Cpu IC (Sn28720)
129
Ctst (2P)
146
Decoder Drive IC (SN28723)
148
Sample Waveforms
149
Integrated Circuit Replacement and Adjustment
150
OPT IC Adjustment
151
OSC INTERFACE IC Adjustment
153
INPUT IC Adjustment (A/D NULL Adjustment)
154
Decoder Driver IC Adjustment
155
Service Tools List
158
Parts List
172
Wiring Diagram

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