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PDT 11/150
Technical manual
Digital Equipment PDT 11/150 Technical Manual
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:
User manual
(93 pages)
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
Preface
Chapter 1 Introduction
Typical System Configurations
Equipment and Media Specifications
Related Publications
Ordering Information for DIGITAL Personnel
Ordering Information for Customers
Technical Reference Material
Chapter 2 Unpacking/Installation
Unpacking and Inspection
Site Preparation and Connections
AC Power Requirements
Serial Line Cable Connectors
EIA Connector Pin Assignments
Serial Line Cable Lengths
Serial Line Data Characteristics
Chapter 3 Operating Procedures
Switches and Indicators
Front Panel Indicators
Rear Panel Switches and Components
Function Switch
Disk Handling and Storage
Test Procedures
Preliminary Setup
Optional Loopback Connector
Self-Test Procedures
Loading a System Program
Changing a System Program
Chapter 4 Technical Description
General Operation
Intelligence Module (KDT 11)
RAM Module (Mstll)
Peripheral Module (Dltll)
Standard and Cluster EIA Modules (Dftll)
Disk Controller Module (Rxtl1)
Power Supply Assembly (H7833)
PDT-Ll/150 BUS STRUCTURE
Signal Distribution
System Operation
Power-Up Functions
I/O Microprocessor Control
Data Transfer Operations
LSI-II Resident Memory
Peripheral Device Interface
EIA/TTL Level Converters
Disk Controller
Intelligence Module Functions (Dwg. No. 5413271)
Test Indicator Register
8085 Memory and I/O Select Address Decoding
Power-Up and Manual Reset
Inter-Processor Link (IPL) and Control Logic
LSI-II Microprocessor and Associated Logic
Clock Pulse Generator and Power Inverter
LSI-II I/O Transfer Sequence
LSI-II I/O Device Address Decoding
Function Control, Fast DIN and Interrupt Request Logic
Ram Module Functions (Dwg. No. 5413275)
RAM Module, Simplified Function Diagram
RAM Matrix Configurations
RAM Module, Memory Matrix Configurations
Address Bus Distribution
Bank Select Decoder Logic
Memory Address Word Formats
Row /Column and Address Multiplexer, Control Logic
Row /Column and Address Multiplexer, Timing Diagram
RAM Refresh Logic
RAM Read or Write Operations
Reply Logic
Peripheral Module Functions (Dwg. No. 5413269)
Information Transfers
Peripheral Module, Simplified Function Diagram
Standard Device Usarts
Optional Device Usarts
Front Panel Indicators
Front Panel Indicator Logic, Simplified Diagram
Function Switch Selections
Standardeia Module Functions (DWG. NO. 5413267)
Standard EIA Module, Simplified Diagram
Cluster EIA Module Functions (DWG. NO. 5413427)
Flexible Disk Description
Flexible Disk and Envelope
Recording Format
Header Field
Data Field
Flexible Disk, Track and Sector Information
Recording Method
Data Recording Patterns
Data and Address Mark Recording
Double Frequency (FM) Data Recording Pattern
Double Frequency (FM) Address Mark Pattern
Disk Controller Module Functions (Dwg. No. 5413273)
8085 Controller Microprocessor
Disk Controller Module, Simplified Function Diagram
Power-Up and Initialize Functions
Read or Write Operations
Disk Drive Selections
Self-Test Function Select and Indicator Logic
Self-Test Function Select and Display, Simplified Diagram
Head Load Control and Track/Index Hole Detection
Head Load Control and Track and Index Hole Detection
Stepper Motor Direction and Control Logic
Stepper Motor Pulse Generation
Step Generator Circuit, Simplified Diagram
Step Generator Circuit, Timing Diagram
Stepper Motor Control and Drive Circuits
Stepper Motor Control and Drive Logic (Revision K)
Simplified Diagram
Stepper Motor Control and Drive Logic (Revision L), Simplified Diagram
FD 1771 Disk Controller and Associated Logic
Disk Write Operations
Read/Write Head and Control Circuits, Simplified Diagram
Disk Read Operations
Read Amplifier and Data Separator Circuit (Revision K)
Simplified Diagram
Data Separator Circuit (Revision L), Timing Diagram
8-Bit Binary Counter Configuration and Load Counts
13- and 17-Count Intervals, Timing Diagram
H7833 Power Supply Module (Dwg. No. 5413343)
Input Ac Voltage Circuits
Ac Voltage Doubler Circuit
Ac Full Wave Rectifier Circuit
Ac, Voltage Doubler Circuit, Simplified Diagram
Ac, Full Wave Rectifier Circuit, Simplified Diagram
Flyback Inverter Circuit
Control Circuit
Flyback Inverter Circuit, Simplified Diagram
Output Control Circuit, Simplified Diagram
Oscillator and Pulse Width Modulator
Error Amplifier Circuit
Current Limiter Circuit
Chapter 5 Service
Performance Tests and Fault Analysis
LED Indicator Locations
Fault Isolation Procedures
Self-Test LED Indicator Locations
Self-Test Sequence Chart
Loading the System Exerciser Program
Exerciser Compatibility Test
Copying the System Exerciser Disk
Loading a System Program
Changing a System Program
Power Distribution
Internal Cable and Connector Locations
AC/DC Power Distribution, 60 Hz Units
Initial Ac Power Checks
Initial de Power Checks
50 Hz Internal Cable Configurations
Disk Drive Assembly, Ac Cable Connector Pin Locations
Power Supply, Connector Pins and Voltage
RAM Module, Connector Pins and DC Voltages
Cable Extender, Module Location and Connections
Removal and Replacement Procedures
Top Cover Assembly
Top Cover Removal
Top Cover Replacement
Rear Panel Assembly, Disk Drive 0 Enclosure
Rear Panel Assembly Removal
Rear Panel Assembly, Removal and Replacement
Rear Panel Assembly Replacement
Rear Panel, Disk Drive 1 Enclosure
Rear Panel Removal
Rear Panel Replacement
TIM Group Assembly
TIM Group Assembly Removal
TIM Group Assembly Replacement
RAM Module
RAM Module Removal
RAM Module, Removal and Replacement
RAM Module, ROM IC Removal and Replacement
ROM IC, Pin Alignment and Mounting
RAM Module Replacement
Peripheral Module
Peripheral Module Removal
Peripheral Module, Removal and Replacement
Jumper Lead Installation
Peripheral Module, Jumper Lead Locations
Peripheral Module Replacement
Intelligence Module
Intelligence Module Removal
ROM IC Installation
Jumper Lead Installation
Intelligence Module, ROM IC and Jumper Lead Locations
Intelligence Module Installation
Standard EIA Module
Standard EIA Module Removal
Standard EIA Module Replacement
Cluster EIA Module
Cluster EIA Module Removal
Cluster EIA Module Replacement
Disk Controller Module
Disk Controller Module Removal
Disk Controller ROM IC Installation
Disk Controller Module, ROM IC Location
Disk Controller Module Replacement
Power Supply Assembly
Power Supply Assembly Removal
Power Supply Module Installation
Power Supply Assembly, Removal and Replacement
Power Supply Module, Removal and Replacement
Power Supply Assembly Installation
Disk Drive 0 Assembly
Disk Drive 0 Assembly Removal
Disk Drive Ground Lead and Ac Cable Connections
Disk Drive and Enclosure Mounting
Front Bezel, Removal and Replacement
Disk Drive 0 Assembly Replacement
Disk Drive 1 Assembly
Disk Drive 1 Assembly Removal
Disk Drive 1 Assembly Replacement
Module and Assembly Component Locations and Signals
Removable Module Ics
Intelligence Module, Functional Layout and Signals
RAM Module, Functional Layout and Signals
Peripheral Module, Functional Layout and Signals
Standard EIA Module, Functional Layout and Signals
Cluster EIA Module, Functional Layout and Signals
Disk Controller Module, Functional Layout and Signals
Power Supply Module, Component Layout
Intelligence Module, Functional Layout
RAM Module, Functional Layout
Peripheral Module, Functional Layout
Disk Controller Module (Revision K), Functional Layout
Disk Controller Module (Revision L), Functional Layout
Disk Drive Assembly, Functions and Adjustments
Mechanical Functions
Flexible Disk Spindle Engagement
Read/Write Head Positioning
Disk Drive Assembly, Component Locations
Disk Drive Assembly, Wiring Diagram
Head Load Solenoid And· Actuator
Track 00 and Index Hole Detectors
Read/Write Head Positioning Mechanism
Drive Belt and Pulley Alignment
Disk Drive Assembly, 60 Hz to 50 Hz Conversion
Chapter 6 Programming Information
System Characteristics
Peripheral Device Communication
Console Device
Communications Modem
Line Printer Terminal
Cluster Option Terminals
Power-Up and Manual Reset Conditions
Programmed Reset Instruction (Initialize)
Device and Interrupt Vector Address Assignments
USART Parameter Control Register Address
Standard Terminal Addresses
Optional (Cluster) Terminal Addresses
Disk Drive Addresses
Line Time Clock Addresses
Standard Terminal Register Formats
USART Parameter Register
Console Device Interface
Receiver Control/Status Register (RCSR)
Receiver Data Buffer (RBUF)
Transmitter Control/Status Register (XCSR)
Transmitter Data Buffer (XBUF)
Communications Interface (Modem)
Asynchronous Modem Interface
Asynchronous Receiver Control/Status Register (RCSR)
Asynchronous Receiver Data Buffer (RBUF)
Asynchronous Transmitter Control/Status Register
Asynchronous Transmitter Data Buffer (XBUF)
Synchronous Modem Interface
Parameter Control Register (PARCSR)
Synchronous Receiver Control/Status Register (RXCSR)
Synchronous Receiver Data Buffer (RXDBUF)
Synchronous Transmitter Control and Status Register
Txcsr
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User Manual
PDT
III
TECHNICAL MANUAL
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