HP ap5000 Maintenance and Service Guide: HP ap5000 All-In-One Point of Sale Sy - Page 22

Troubleshooting, Safety and Comfort, Before You Call for Technical Support - parts

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4 Troubleshooting This chapter provides information on how to identify and correct minor hardware and software problems. If you encounter problems with the computer, refer to the tables in this chapter for probable causes and recommended solutions. Safety and Comfort WARNING! Misuse of the computer or failure to establish a safe and comfortable work environment may result in discomfort or serious injury. Refer to the Safety & Comfort Guide at http://www.hp.com/ ergo for more information on choosing a workspace and creating a safe and comfortable work environment. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. For more information, refer to Safety & Regulatory Information guide. Before You Call for Technical Support If you are having problems with the computer, try the appropriate solutions below to try to isolate the exact problem before calling for technical support. ● Run the diagnostics utility. ● Check the Power LED on the front of the computer to see if it is flashing red. The flashing lights are error codes that will help you diagnose the problem. Refer to Interpreting POST Diagnostic Front Panel LED and Beep Codes on page 29 for more information. ● If you are working on a network, plug another computer with a different cable into the network connection. There may be a problem with the network plug or cable. ● If you recently added new hardware, remove the hardware and see if the computer functions properly. ● If you recently installed new software, uninstall the software and see if the computer functions properly. ● If you are using a Windows operating system, boot the computer to the Safe Mode to see if it will boot without all of the drivers loaded. When booting the operating system, use "Last Known Configuration." ● Refer to the comprehensive online technical support at http://www.hp.com/support. ● Refer to the following Helpful Hints on page 15 in this guide. To assist you in resolving problems online, HP Instant Support Professional Edition provides you with self-solve diagnostics. If you need to contact HP support, use HP Instant Support Professional 14 Chapter 4 Troubleshooting

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4
Troubleshooting
This chapter provides information on how to identify and correct minor hardware and software
problems. If you encounter problems with the computer, refer to the tables in this chapter for probable
causes and recommended solutions.
Safety and Comfort
WARNING!
Misuse of the computer or failure to establish a safe and comfortable work environment
may result in discomfort or serious injury. Refer to the
Safety & Comfort Guide
at
ergo
for more information on choosing a workspace and creating a safe and comfortable work
environment. This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of the FCC Rules. For more information, refer to
Safety & Regulatory
Information
guide.
Before You Call for Technical Support
If you are having problems with the computer, try the appropriate solutions below to try to isolate the
exact problem before calling for technical support.
●
Run the diagnostics utility.
●
Check the Power LED on the front of the computer to see if it is flashing red. The flashing lights
are error codes that will help you diagnose the problem. Refer to
Interpreting POST Diagnostic
Front Panel LED and Beep Codes
on page
29
for more information.
●
If you are working on a network, plug another computer with a different cable into the network
connection. There may be a problem with the network plug or cable.
●
If you recently added new hardware, remove the hardware and see if the computer functions
properly.
●
If you recently installed new software, uninstall the software and see if the computer functions
properly.
●
If you are using a Windows operating system, boot the computer to the Safe Mode to see if it will
boot without all of the drivers loaded. When booting the operating system, use “Last Known
Configuration.”
●
Refer to the comprehensive online technical support at
support
.
●
Refer to the following
Helpful Hints
on page
15
in this guide.
To assist you in resolving problems online, HP Instant Support Professional Edition provides you with
self-solve diagnostics. If you need to contact HP support, use HP Instant Support Professional
14
Chapter 4
Troubleshooting