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CDC 40003-203
Hardware maintenance manual
Control Data Corporation CDC 40003-203 Hardware Maintenance Manual
Plato flexible disk subsystem 16k ram expansion
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Contents
Table of Contents
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Table of Contents
Table of Contents
General Description
Subsystem Configuration
PLATO Master Flexible Disk Subsystem
PLATO Slave Flexible Disk Drive
RAM Expansion Feature
ROM Expansion Feature (Future Availability)
Media
Equipment Specifications
Voltage Select Switch
Power On/Off Switch/Circuit Breaker
Device Address Switch (Master Units Only)
Master Reset Switch (Master Units Only)
Diagnostic Control Switches (Master Units Only)
Switch 20
Switch 21
Switch 22
Switch
Switch 26
LED Indicators
Switch 27
Operation
Installation and Checkout
Packaging
Installation
Subsystem Installation
Flexible Disk Subsystem Packaging
Controller Board Switches and Indicators
I/O Cable and Terminator Installation
RAM Option Installation
RAM Option FCO Log and ID Tag Placement
Checkout
Power Supply Voltage Indicators
Major Elements of Subsystem
AC Power Entry Panel
Power Supply
Subsystem Block Diagram
Backplane
Flexible Disk Drive (FDD) Assembly
Drive Assembly Functional Block Diagram
Controller Board (Master Units Only)
Controller Board Block Diagram
9517A-4 Direct-Memory-Access (DMA) Controller
Z80A Microprocessor
2716 Erasable Programmable Read-Only Memory (EPROM)4-9
External Wiring of the CTC for Head-Load Timing
Z80 Counter/Timer Circuit (CTC)
External Wiring of the CTC for Real-Time
9519 Interrupt Controller
C~ External Interface Pin Assignments
Internal Connector Pin Assignments
Flexible Disk Interrupt Network
Parallel I/O Channel Pin Assignments
Maintenance
General Maintenance Information
Suggested Emergency Maintenance Procedure
Before Leaving for Customer Site
Upon Arriving at Customer Site
Safety Precautions
Maintenance Tools and Materials
Maintenance Aids
Location of Major Assemblies
Diagnostic and Corrective Maintenance
Diagnostic Self-Test Routines
LED Test
Test 1 - RAM Test
Test 2 - Interrupt Generator
Test 3 - Flexible Disk Controller
Test 4 - DMA Test
Test 5 - I/O Loopback Test
Test 6 - CTC Test
Test 7 - Writing and Reading the Disk
DIAG Flexible Disk Diagnostic Tests
Explanation of SAM Format
Organization of Sams and Procedures
Power On/Off Switch Location
Flexible Disk Installation/Removal
Procedure 3 - Front Panel and Cabinet Hood Removal/Replacement
Procedure 4 - Controller Board Removal/Replacement
Procedure 5 - Power Supply Removal/Replacement. 6B-6
Procedure 6 - Disk Drive Unit Removal/Replacement
Disk Drive Unit Installation
Explanation of Column Headings on Assembly Parts Lists
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I':J c:\
CONTR.OL DATA
\!:I
r:J
CORPO~TlON
CDC(!) 40003-203/204/205/206
PLATO<!Fl.EXIBLE DISK SUBSYSTEM
ANo
40003-200
16K RAM EXPANSION
HARDWARE'
MAINTENANCE
MANUAL
(S'ITE AND SUPPORT INFORMATION)
6Z949l00
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This manual is also suitable for:
Cdc 40003-204
Cdc 40003-205
Cdc 40003-206
Cdc 40003-200
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