VT420 Service Guide

Company:Digital Equipment Corporation
Part:EK-VT420-PS-002
Date:1992-01
Keywords:terminal

Table of Contents

  • 1 VT420 Models and Features
    • 1.1 VT420 Models
    • 1.2 VT420 Features
  • 2 Troubleshooting and Testing
    • 2.1 Troubleshooting
    • 2.2 VT420 Self-Tests
      • 2.2.1 Before You Start
      • 2.2.2 How to Type an Escape Character
      • 2.2.3 Power-Up Self-Test
      • 2.2.4 DEC-423 Port Loopback Test (6-Pin)
      • 2.2.5 RS-232 Port Data Lines Loopback Test (25-Pin, Worldwide Model Only)
      • 2.2.6 RS-232 Port Control Lines Loopback Test (25-Pin, Worldwide Model Only)
      • 2.2.7 Printer Port Loopback Test (6-Pin)
      • 2.2.8 Screen Alignment Test
    • 2.3 Printer Problems
    • 2.4 Error Codes
  • 3 Removing and Replacing FRUs
    • 3.1 Top Cover
    • 3.2 CRT/Yoke/Bezel Assembly
    • 3.3 Terminal Board Assembly
    • 3.4 Keyboard
    • 3.5 CRT Disposal (Digital Service Representatives Only)
  • 4 Adjusting The Video Monitor
    • 4.1 Aligning the Screen
    • 4.2 Monitor Adjustments
      • 4.2.1 Before You Start
      • 4.2.2 Displaying the Screen Test Pattern
      • 4.2.3 Screen Control
      • 4.2.4 Subcontrast
      • 4.2.5 Rotation
      • 4.2.6 Horizontal Width
      • 4.2.7 Vertical Height
      • 4.2.8 Vertical Linearity
      • 4.2.9 Centering
      • 4.2.10 Focus
  • 5 Using Set-Up
    • 5.1 Displaying Set-Up Screens
    • 5.2 Changing Settings
    • 5.3 Saving Set-Up Values
    • 5.4 Recalling Set-Up Values
  • A Modems, Cables, and Documentation
    • A.1 Modems
    • A.2 Cables
    • A.3 Related Documentation
  • B VT420 Recommended Spares
    • B.1 VT420 Models
    • B.2 Recommended Spares
    • B.3 Keyboard Models
  • C Physical/Functional Diagrams

Copies

Address: http://vt100.net/docs/vt420-ps/vt420ps2.pdf
Site: Paul Williams' VT100.net
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Mirrors:
 
Address: http://computer-refuge.org/classiccmp/dec94mds/vt420ps2.txt
Site: Patrick Finnegan's Computer Refuge
Format: Text
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Address: http://computer-refuge.org/classiccmp/dec94mds/vt420ps2.pdf
Site: Patrick Finnegan's Computer Refuge
Format: PDF
Size: 915688 bytes (894 KiB)
MD5: 6facad8fb9ade1ddd86b0005ac169c8d
 
Address: http://deathrow.vistech.net/~cvisors/DEC94MDS/vt420ps2.txt
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MD5: 6bbc4087a6bd788a92b9d935efab98ff
 
Address: http://deathrow.vistech.net/~cvisors/DEC94MDS/vt420ps2.pdf
Site: Ivy's MDS Mirror (Low Bandwidth)
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MD5: 6facad8fb9ade1ddd86b0005ac169c8d
 
Address: http://cmcnabb.cc.vt.edu/dec94mds/vt420ps2.txt
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MD5: 6bbc4087a6bd788a92b9d935efab98ff
 
Address: http://cmcnabb.cc.vt.edu/dec94mds/vt420ps2.pdf
Site: Christopher McNabb's MDS Mirror
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Size: 915688 bytes (894 KiB)
MD5: 6facad8fb9ade1ddd86b0005ac169c8d
 
Address: http://www.xenya.si/sup/info/digital/MDS/jun99/Cd3/TERM/VT420PS2.PDF
Site: www.xenya.si
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Size: 1092174 bytes (1.0 MiB)
MD5: c3b0fcb1d7eea546cb0135f1d098b4e3
 
Address: http://manx-docs.org/collections/mds-199909/cd3/term/vt420ps2.pdf
Site: Compaq Maintenance Documentation Service on CD-ROM, DIGITAL-branded Products, September 1999
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