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3100
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Cromemco 3100 Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Basic Functional Flow Diagram
Basic Functional Flow Diagram
Monitor "4-6
Keyboard
Detailed Functional Description
Power Supply
Vertical Synchornization
Horizontal Synchronization
Video Information
Display Organization
Cursor Location Counter
Character Dot Matrix
Timing Diagram
Timing Diagram
Memory
Character Generator
Video Shift Register
Input/Output Operations UART (Receiver)
UART (Transmit)
Block Send Circuit
Auxiliary Send Circuit
Special Function (F1-F16)
Section V - Maintenance
Introduction
Preventive Maintenance
Troubleshooting Equipment
Corrective Maintenance
Troubleshooting Preliminary Considerations
Troubleshooting Flow Diagrams
Full/Duplex Echoplex Test
Echoplex Test Connector
Monitor Adjustments
Disassembly Procedure
Case Removal
Logic Board Removal
Keyboard Assembly
Fan Removal
Monitor Assembly Removal
Monitor
General Information
Theory of Operation
Preliminary Adjustments
Voltage Waveform
Interconnecting Cabling Diagram
Circuit Board Components Location
Programmable Logic Array Inputs
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Crorneineo
3100 & 3101 TERMINAL
Part no. 023-0077
SERVICE MANUAL
CROMEMCO, Inc.
280 Bernardo Avenue
Mountain View. CA 94043
March 1980
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Table of Contents
Troubleshooting
SECTION V - MAINTENANCE
17
Troubleshooting Preliminary Considerations
18
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