VT101 Series Pocket Service Guide

Company:Digital Equipment Corporation
Part:EK-VT101-PS-001
Date:1981-09
Keywords:terminal VT100

Table of Contents

  • Chapter 1 Troubleshooting and Testing
    • 1.1 General
    • 1.2 Troubleshooting and Testing
    • 1.3 Troubleshooting the Option
    • 1.4 Power-Up Self-Test
    • 1.5 Data Loopback Self-Test
    • 1.6 EIA Control Lines Loopback Self-Test (VT102 and VT131)
    • 1.7 Printer Loopback Self-Test (VT102 and VT131)
    • 1.8 Video Adjust Test
    • 1.9 Printer Problems
    • 1.10 Keyboard Problems
      • 1.10.1 Unable to Type a Particular Alphanumeric Character
      • 1.10.2 Keyboard Does Not Generate Bell Tone
    • 1.11 Self-Test Error Codes
    • 1.12 No Response at Power-Up
      • 1.12.1 Terminal Not Plugged In, or No Power at Wall Socket
      • 1.12.2 Power Cord Has Internal Short or Open
      • 1.12.3 Fuse is Blown
      • 1.12.4 No AC Voltage to Power Supply
      • 1.12.5 No Secondary Voltage from Transformer
      • 1.12.6 Incorrect or No DC Voltage to Controller Board
      • 1.12.7 Keyboard Voltage Check
      • 1.12.8 Terminal Controller Board Voltage Checks
      • 1.12.9 Video Monitor Board Voltage Check
      • 1.12.10 Flyback Assembly and/or CRT Cable Shorting or Bad
    • 1.13 Incorrect Response at Power-Up
      • 1.13.1 Cursor Does Not Appear in Upper-Left Corner of Screen
      • 1.13.2 Random LEDs Flash, Cursor Does Not Appear on Screen
      • 1.13.3 Random Characters Appear on Screen
      • 1.13.4 Cursor Appears on Screen but Terminal is Inoperable
  • Chapter 2 FRU Removal and Replacement
    • 2.1 General
    • 2.2 Removal and Replacement Procedures
    • 2.3 Access Cover
    • 2.4 20 mA Current Loop Option Board
    • 2.5 Top Cover
    • 2.6 Terminal Controller Board
    • 2.7 Bottom Cover
    • 2.8 Power Supply Board
    • 2.9 Power Supply Transformer
    • 2.10 Video Monitor Board
    • 2.11 Flyback Transformer and Vertical Choke
    • 2.12 CRT
      • 2.12.1 CRT Storage
      • 2.12.2 CRT Disposal
    • 2.13 Keyboard Top Cover
    • 2.14 Keyboard
    • 2.15 Keyboard Cable
    • 2.16 Keyboard Speaker
    • 2.17 Keycaps
      • 2.17.1 Test After Installation
    • 2.18 ROMs
    • 2.19 Recommended Spares List
  • Chapter 3 Video Monitor Alignment
    • 3.1 General
    • 3.2 Alignment Template
      • 3.2.1 Making a Paper Template
      • 3.2.2 Attaching the Template
      • 3.2.3 Brightness
      • 3.2.4 Yoke Rotation
      • 3.2.5 Vertical Height
      • 3.2.6 Horizontal Width
      • 3.2.7 Centering
      • 3.2.8 Vertical Linearity
      • 3.2.9 Focus
  • Chapter 4 Board Configurations
    • 4.1 General
    • 4.2 Terminal Controller Boards
      • 4.2.1 VT101 Configuration
      • 4.2.2 VT102 Configuration
      • 4.2.3 VT131 Configuration
    • 4.3 Communication Switchpack (VT102 and VT131 only)
  • Chapter 5 Options
    • 5.1 General
    • 5.2 20 mA Current Loop Option Installation
    • 5.3 20 mA Current Loop Option Checkout
  • Chapter 6 Operator Reference Material
    • 6.1 General
    • 6.2 SET-UP
      • 6.2.1 SET-UP A
      • 6.2.2 SET-UP B (VT101)
      • 6.2.3 SET-UP B (VT102 and VT131)
      • 6.2.4 SET-UP C (VT131 only)
  • Appendix A Related Information
  • Appendix B Cable Information
  • Appendix C Physical Functional Diagram
    • C.1 Physical Functional Diagram Board Pins and Signals

Copies

Address: http://vt100.net/dec/ek-vt101-ps-001.pdf
Site: Paul Williams' VT100.net
Format: PDF
Size: 1746075 bytes (1.7 MiB)
MD5: 15c6d2045804cb35b0f2990cb3ee4a52
Credits:Manual donated by Norbert Roll. Scanned by Paul Williams
Mirrors: