Maintenance and Service Guide
Table Of Contents
- Product overview
- Standard features
- Integrated features
- Stand options
- HP Engage One Basic I/O Connectivity Base components
- HP Engage One Advanced I/O Connectivity Base components
- Connecting an AC adapter to power
- Locating the Engage One power button
- Locating the I/O connectivity base power button
- Adjusting the Engage One head unit
- Engage One serial number location
- I/O connectivity base serial number location
- Illustrated parts catalog
- Routine care, SATA drive guidelines, and disassembly preparation
- Removal and replacement procedures
- Preparation for disassembly
- Attaching an I/O connectivity base to the Engage One
- Connecting a standalone I/O connectivity base to the Engage One
- Configuring the I/O connectivity base’s powered serial ports
- Connecting a standalone optional fingerprint reader to the I/O connectivity base
- Attaching an optional fingerprint reader to the I/O connectivity base
- Removing and attaching the Engage One head unit to the stand
- Mounting the Engage One head unit to a wall
- Mounting the Engage One to a counter top
- Installing a security cable on the I/O connectivity base
- Installing a security cable on the Engage One column
- Installing a security screw on the Engage One head unit and stand
- Installing a security screw on the Engage One head unit and VESA mount
- Removing and replacing the column printer
- Removing the display panel
- System board components
- Installing a 2 x 20 customer-facing display (CFD)
- Memory modules
- Removing and installing an M.2 solid-state drive (SSD)
- Removing the WLAN module
- Removing the heat sink
- Removing the fan assembly
- Removing the speakers
- Removing the power button board
- Removing the MSR (Magnetic Stripe Reader)
- Removing the MSR LED board
- Removing the system board
- Removing the antennas
- Using the column printer
- Cable routing configurations
- Cable matrix for Engage One with integrated column printer and basic I/O connectivity base
- Cable matrix for Engage One with integrated column printer and advanced I/O connectivity base
- Cable matrix for Engage One without I/O connectivity base
- Cable matrix for Engage One with I/O connectivity base
- Cable matrix for Engage One with basic I/O connectivity base and standalone printer
- Cable matrix for Engage One with advanced I/O connectivity base and standalone printer
- Configuring the software
- Computer Setup (F10) Utility
- POST error messages and diagnostic front panel LEDs and audible codes
- Password security and resetting CMOS
- Using HP PC Hardware Diagnostics (UEFI)
- Troubleshooting without diagnostics
- Safety and comfort
- Before you call for technical support
- Helpful hints
- Solving retail system-specific problems
- Solving general problems
- Solving printer problems
- Solving hardware installation problems
- Solving network problems
- Solving memory problems
- Solving USB flash drive problems
- Solving Internet access problems
- Solving software problems
- System backup and recovery
- Power cord set requirements
- Statement of memory volatility
- Specifications
- Index

12 Troubleshooting without diagnostics
This chapter provides information on how to identify and correct minor problems, such as USB devices, hard
drive, optical drive, graphics, audio, memory, and software problems. If you encounter problems with the
computer, refer to the tables in this chapter for probable causes and recommended solutions.
NOTE: For information on specic error messages that may appear on the screen during Power-On Self-Test
(POST) at startup, refer to POST error messages and diagnostic front panel LEDs and audible codes
on page 88.
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. For more
information, refer to the Safety & Regulatory Information guide.
Before you call for technical support
IMPORTANT: Always be sure to load the latest BIOS and drivers, available from http://support.hp.com/.
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 HP diagnostic tool.
●
Run the hard drive self-test in Computer Setup. Refer to Computer Setup (F10) Utility on page 77 for
more information.
●
Check the Power LED on the front of the computer to see if it is ashing red. The ashing lights are error
codes that will help you diagnose the problem. Refer to POST error messages and diagnostic front panel
LEDs and audible codes on page 88 for more information.
●
If the screen is blank, plug the monitor into a dierent video port on the computer if one is available. Or,
replace the monitor with a monitor that you know is functioning properly.
●
If you are working on a network, plug another computer with a dierent 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.
●
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 Conguration.”
●
Refer to the comprehensive online technical support at http://www.hp.com/support.
●
Refer to Helpful hints on page 102 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 Edition's online chat
feature. Access HP Instant Support Professional Edition at: http://www.hp.com/go/ispe.
Safety and comfort 101










