91369 Service Manual
5-1
Contents
Troubleshooting
Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
System Startup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Boot Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Power-ON Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Extended Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Diagnostic Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Error Log. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Diagnostics Failure Messages and Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
System Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Overview
The first several sections describe the available diagnostics features and how to use them. This is followed by
a section which lists diagnostics failure messages and the suggested corrective actions. The last section gives
specific troubleshooting steps which can be used to isolate failures.
The troubleshooting procedures in this chapter isolate equipment problems to a Field Replaceable Unit (FRU).
The following items are field-replaceable:
• PCBA, Connector
• PCBA, Interconnect
• PCBA, CPU
• All sheet metal and plastic parts
• External DC power supply
• LCD display
• 5-wire resistive touchscreen
• Internal alarm LED assembly
• Power indicator flexboard
• Backlight inverter board
Caution:
Observe precautions for handling electrostatic-sensitive devices!
Note:
• Never touch electrostatic-sensitive electronic components without following proper anti-static
procedures, including the use of an ESD wrist band and mat. An electrostatic discharge from your
fingers can permanently damage electronic components and cause latent failures.
• All static-sensitive electronic components are packaged in static-shielding bags. Retain the bag should
you need to repackage the component for storage or need to return it to Spacelabs for any reason.
