Maintenance and Service Guide: HP ap5000 All-In-One Point of Sale System

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Reconfigure the system after installing a non–plug and play optional device.
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Be sure that all the needed device drivers have been installed. For example, if you are using a
printer, you need a driver for that model printer.
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Remove all bootable media from the system before turning it on.
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If you have installed an operating system other than the factory-installed operating system,
check to be sure that it is supported on the system.
CAUTION: When the computer is plugged into an AC power source, there is always voltage applied
to the system board. You must disconnect the power cord from the power source before opening the
computer to prevent system board or component damage.
General Troubleshooting Steps for a New Installation
The following are some basic ideas for troubleshooting the initial hardware setup.
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Check that the computer is plugged into a known, good electrical outlet.
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Verify that the computer is turned on and that the green power light is on.
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Verify that the computer can support any OS or peripherals being installed by checking the
Quick Specs for the computer.
NOTE: A keyboard is required for setting up Windows. The touch screen drivers are not active until
after the operating system has been installed.
General Troubleshooting Steps for an Existing
Installation
The following are some ideas for troubleshooting problems after the initial setup.
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Check all cable connections for loose or improper connections.
● Check the front LED for error conditions.
● Determine whether the computer is in a low-power (sleep) state; if so, press the touch screen or
the power button to wake the computer. If the computer does not "awaken," press and hold
down the power button for at least 4 seconds, then press the power button again to shut down
and restart the system. If the power button does not shut down the computer, unplug the power
cord, wait a few seconds, and then plug it in again. If the computer does not restart automatically
when power is restored, press the power button to start the computer.
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Ensure that all the necessary device drivers have been installed.
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Remove any new/additional hardware and see if the computer functions properly.
● Uninstall recently added software and see if the computer functions properly.
● Upgrade the BIOS; a new release of the BIOS could have been released that supports new
features or fixes the issue.
NOTE: A keyboard or mouse will not wake the system from an S3 sleep state.
16 Chapter 4 Troubleshooting