Micros Systems Workstation 4 LX Service Manual page 87

Chapter 3
WS4 Troubleshooting
This Chapter is your guide to testing and repairing the original Workstation 4
System Boards AB28 and ABRD36. Additional topics include using the
built-in DiagUtility and a discussion of the WS4 Platform files.
In this chapter
Introduction...................................................................................................3-2
Operational Troubleshooting ....................................................................... 3-4
Testing the Power Supply and System Board Voltages ............................... 3-8
POST Errors................................................................................................3-11
LCD Display Related................................................................................. 3-14
Touchscreen Related .................................................................................. 3-16
Local Area Network (LAN) Related ......................................................... 3-18
Mechanical Related.................................................................................... 3-21
Peripheral Related...................................................................................... 3-22
Workstation Recovery Procedures............................................................. 3-26
Workstation 4 and 4 LX Field Service Guide 3-1