Publication 2711P-UM001A-EN-P
8-8 Troubleshooting and Maintenance
Advanced Troubleshooting
1. Take advantage of alternate connectivity - mouse versus touch
screen, keyboard versus keypad, serial communications, and
alternate Ethernet connections.
2. Know useful keyboard shortcuts so that you can navigate
around the system without a mouse or touch screen.
3. From Configuration Mode, select Terminal Settings>System
Event Log to check the event log. Look for error conditions or
reasons for unexpected reboots.
4. Check the configuration settings in Configuration Mode for
incorrect settings.
5. Most importantly, general troubleshooting thoroughness means
getting answers to questions such as:
• Does the failure always happen? Is it repeatable?
• Does the failure happen at bootup or some other time? Is
there a set of actions that reveal the problem?
• Does the failure occur on just one terminal or on multiple
machines? If more than one machine, what do they have in
common? If not all machines, then what is different between
machines that fail and those that don’t?
• What appears on the screen, the LED indicators?
• Lastly, and most important; did everything work until
recently? If so, what changed?
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