Troubleshooting; Troubleshooting Quick Reference Guide - Wyse WY-30 Maintenance Manual

3
TROUBLESHOOTING
Before You Start
3-2
Safety 3-2
Required Tool s 3-2
Troubleshooting Quick Reference Guide
3-3
Troubleshooting Flowchart 3-3
Troubleshooting Aids
3-8
Installation Checklist ······
3-8
Checking for Continuity
3-9
Power Supply Check on the Terminal PCB
3-9
Power-On Self-Test . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Diagnostic Self-Test 3-11
Checking the Keyboard 3-12
Isolating Circuits 3-13
3-1