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Manuals
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Wyse Manuals
Touch terminals
WY-30
Maintenance manual
Wyse WY-30 Maintenance Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Overview
Table of Contents
High Level Functional Description
Microcomputer
Memory
Terminal Control
Input/Output Devices
Communications Interfaces
Environment
Terminal Dimensions
Operator Interfaces
P Ower Cord
Setup Parameters
Communications Cable
AC Power Switch
Brightness Slideswitch
Touch/Tilt Screen Adjustment
Cleaning
Removal and Replacement Procedures/Keyboard
2 Removal and Replacement Procedures
Keyboard
Overview
Before You Start
Terminal Modules
Safety
Removing and Replacing Assemblies in the Keyboard Module
Required Tools
Keyboard Assembly
Keyboard Cable
Removing and Replacing Assemblies in the Terminal Module
Keyboard PCB
Removing the Terminal Enclosure
Replacing the Fuse
Replacing the Terminal PCB
Removing the Terminal PCB
Replacing the Crt/Yoke Assembly
Replacing the Yoke
Discharging the Anode
Discharging the Anode before Removal
Replacing the Terminal Enclosure
Discharging the Anode before Installation
Troubleshooting Quick Reference Guide
3 Troubleshooting
Troubleshooting Quick Reference Guide
Before You Start
Required Tools
Safety
Troubleshooting Quick Reference Guide
Troubleshooting Flowchart
Setup Parameters
Troubleshooting Flowchart
Troubleshooting Aids
Installation Checklist
Checking for Continuity
Power Supply Check on the Terminal PCB
Power-On Self-Test Error Messages
Diagnostic Self-Test
Diagnostic Self-Test Error Messages
Checking the Keyboard
Isolating Circuits
Adjustments and Alignments/Display Magnets
4 Adjustments and Alignments
Display Magnets
Centering Rings
Before You Start
Safety
Tools Required
Power Adjustments
Does the Terminal Meet the Display Specifications
Aligning the Terminal Display
Adjustments
Ad J Us Tmen T Locations
Display Problems and Adjustments
Height
Vertical Hold
Brightness
Linearity
Display Leveling
Focus
Width
Yoke Lock on the CRT Neck
5 Illustrated Parts List
Introduction
Terminal Display Assembly Exploded View
Keyboard Assembly Exploded View
Terminal Components List
Keyboard Components List
Terminal Board Assembly Layout
Terminal Display Assembly Exploded View
Keyboard Assembly Exploded View
Terminal PCB Components List
Keyboard
Diagnostic Self-Test Connectors
6 Theory of Operation
Input/Output Devices
Introduction
Microcomputer and Related Logic
Memory Map
Values Loaded into CRTC
Screen Attribute Assignments
Power Supply and Monitor Circuitry
Keyboard
Communication Ports
Terms and Abbreviations
7 Schematics
Keyboard PCB
Terminal PCB (Logic)
Terminal PCB (Monitor/Power Supply)
A Specifications
Keyboard
MODEM Port Pin Assignments (DTE
AUX Port Pin Assignments (DTE
Checking Straightness, Pincushioning, Centering, and Vertical Linearity
Index
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Quick Links
1
Table of Contents
2
Input/Output Devices
3
Setup Parameters
Download this manual
WY-30
Maintenance
Manual
For Service Manuals
MAURITRON SERVICES
8 Cherry Tree Road, Chlnnor
Oxfordshire, OX9 4QY.
Tel (01844) 351694
Fax (01844) 352554
email:·maurltron@dial.pipex.com
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Table of
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Chapters
Table of Contents
4
Removal and Replacement Procedures/Keyboard
14
Troubleshooting Quick Reference Guide
28
Adjustments and Alignments/Display Magnets
41
Table of Contents
Troubleshooting
TROUBLESHOOTING
28
Troubleshooting Quick Reference Guide
30
Troubleshooting Flowchart
31
Troubleshooting Aids
35
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