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VT180 Series
Technical manual
Digital Equipment VT180 Series Technical Manual
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Contents
Table of Contents
Bookmarks
Table of Contents
Table of Contents
Preface
Introducnon and SPECIFICATIONS
General Description
Physical Description
Vt180 Specifications
System Physical Dimensions
Unit Physical Dimensions
Environmental Specifications
Electrical Specifications 1 ~4
Video Display Characteristics
AUDIBLE Signals
Communication Characteristics
Disk Drive Characteristics
Related I:XX::umentation
Digital Hardware and Software Documentation
Other Documentation
Operating Information
Intr.oduction
Terminal Operation
Controls and INDICATORS
Terminal Monitor and Disk Drive Power Controls
Keyooa.rd Controls
Standard Keys
Auxiliary Keypad Keys
Visual Indicators
On-Line
Local
Kbd Locked
LI through L4 Indicators
Audmle INDICATORS
Keyclick 2-1
Bell Tone
Set-Up Mode 2-1
Entering and Exiting Set-Up
Set-Up B
SET-UP B, CP 1M Compatibility Features
General
Site Considerations
Unpacking and Inspection
Vt18X Upgrade Kit Installation
Check the Roms on the Terminal Controller Module
Install the VT180 Paddle Board
Install the Expansion Backplane on the Card Cage 3-1
Install the Card Guides
Install the Terminal Controller Module
Install the VT18X Control Module
Install the Chassis in the Bottom Cover
Install the VTI80
Install the Top Cover
Install the New Metal Module Access Cover (Rear Shield)
Checking the RX180 Drive Select Switches
Disk Drive Unit Top Cover Removal
Setting the Drive Select Switches
Terminator Resistor Pack
Disk Drive Unit Top Cover (Reinstallment)
ROM Removal Andjnstallation
Word Processing Option
System Interconnections
Terminal Installation
Install the RX180 Disk Drive Unit(S)
Serial Port Connections
Printer Port
General Purpose Port
Power-Up Procedure
Self-Test Error Messages
System Checkout
ROM-Based Diagnostic
VT18X Diskette Diagnostic
Hardware Installation Complete
Interface Information
Communications Interface Connector
Printer Interface Connector
General Purpose Serial Interface Connector
RX180 Disk Port Connector
External Video Connections
Vt180 Cp 1M Operation
Diskettes and Files
Storing Information on Diskettes
Using Diskettes
Ending an Operating Session
Copying the Cp/M Master Diskette
Using the Vt180
Conversing with Cp/M
Issuing Commands 4-1
Resident and Transient Cp/M Commands
Running Application Programs
Chapters
Setting the Serial Ports' Transmission Characteristics
Introduction
Psetup
Menu Mode
Baud Rate Selection
Communications Port Data/Stop Bits/Parity
General Purpose Port Data/Stop Bits/Parity
Printer Port Data/Stop Bits/Parity
Show All Selections Made
Return to CP 1M
Concise Mode
Psetup Examples
Menu Mode
Concise Mode
Psetup Error Messages
Technical Description
Introduction
System Description
System Subunits
Terminal Controller Module
Video Monitor
Keyboard
VT18X Control Module
VT 180 Paddle 8<>Ard
RX180 Disk Drive Unit
Vt100 Functional Description
Microprocessor
Program ROM
Scratch RAM
Nonvolatile RAM
Advanced Video Option
Leds
Transmit Buffer
Silo
Control Function Parser
Screen RAM
Video Processor
CRT Monitor
Power Supply
Standard Terminal Port
EIA Drivers and Receivers
Terminal Controller Description 6-1
80·80 Microprocessor 6-1
Data Bus and System Controller
Clock Generator
Bus Timing
Microprocessor Memory
I/O Read and Write
Interrupt Vector
Communication Transceiver
Standard Terminal Port
Nonvolatile RAM
NVR Timing
Keyboard Interface
Video Processor
Line Buffer
DMA Cycle Timing Diagram
Intensity Control
Microprocessor - Video Processor Interface
Cursor
Vt18X Control Module Description
Interrupts
Byte RAM
Byte ROM
Console Port
Communications Port
Printer Port
General Purpose Serial Port
Terminal Controller and VT18X Control Module Interconnections
Disk Drive Controller
Formatter/Controller
Phase-Locked Loop
VT18X Control Module Input/Output Addresses
Communications Data and Control Status Registers
Asynchronous Mode Instruction Format
Disk Drive Controller Registers
Disk Drive Command Summary
General Control and Status Register (80H)
Communications Status Register (88H)
Diagnostic Write Register (98H)
Diagnostic Read Register (AOH)
Vt100 Monitor
Video Driver
Brightness
Horizontal Output Circuit
Power Supply
Power Input
Start-Up Circuit
Control Circuit
Outputs
Power Supply Specifications 6-11
Input Specifications
Cooling
Keyboard Description
Keyboard Block Diagram
Keyboard Uarts
Key Address Counter
Key Scanning and Address Formation
Bidirectional Interface Operation
Combined Interface Signal
Decoding of Data from Terminal
Bell
Keyboard Interrupt Routine
Logical Keyboard Processor
Auto Repeat
Module and Mechanical Assembly Removal and Installation
Terminal Controller Module
VT180 Paddle Board
Advanced Video Option (AVO)
Terminal Controller Module Roms
Top Cover
Video Monitor Board (Digital or Elston)
Flyback Transformer (Digital or Elston)
Bottom Cover Removal and Installation
Power Supply
RF Shield Removal
Expansion Backplane Removal
CRT Discharge and Anode Cap
CRT and Yoke Assembly
Storingacrt
Vt180 Programming Information
General Information A-I
LED Indicators
SET-UP Key
Nonalphabetic Keys
Function Keys
No Scroll
Break
Cursor Control Keys
Auxiliary Keypad
A-II
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EK-VT l8X-1M-OO
1
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