Hp Omni PRO 110 User Manual
Maintenance & Service Guide
HP Omni Pro 110 All-in-One PC
© Copyright 2011, 2012 Hewlett-Packard
Development Company, L.P. The
information contained herein is subject to
change without notice.
Microsoft and Windows are trademarks of
Microsoft Corporation in the U.S. and other
countries.
The only warranties for HP products and
services are set forth in the express
warranty statements accompanying such
products and services. Nothing herein
should be construed as constituting an
additional warranty. HP shall not be liable
for technical or editorial errors or omissions
contained herein.
This document contains proprietary
information that is protected by copyright.
No part of this document may be
photocopied, reproduced, or translated to
another language without the prior written
consent of Hewlett-Packard Company.
Maintenance & Service Guide
HP Omni Pro 110 All-in-One PC
Second Edition (October 2012)
Document Part Number: 654194-002
About This Book
WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily
harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions could result in
damage to equipment or loss of information.
NOTE: Text set off in this manner provides important supplemental information.
iii
iv About This Book
Table of contents
1 Product Features ............................................................................................................................................ 1
Front Components ................................................................................................................................ 2
Rear and Side Components ................................................................................................................. 3
2 Installing and Customizing the Software ...................................................................................................... 4
Installing the Operating System ........................................................................................................... 4
Downloading Microsoft Windows Updates ........................................................................................... 4
Installing or Upgrading Device Drivers (Windows systems) ................................................................. 5
Protecting the Software ........................................................................................................................ 5
3 Computer Setup (F10) Utility ......................................................................................................................... 6
Computer Setup (F10) Utilities ............................................................................................................. 6
Using Computer Setup (F10) Utilities .................................................................................. 6
Computer Setup—Main ....................................................................................................... 7
Computer Setup—Advanced ............................................................................................... 9
Computer Setup—Power ..................................................................................................... 9
Computer Setup—Boot ...................................................................................................... 10
Computer Setup—Exit ....................................................................................................... 11
Recovering the Configuration Settings ............................................................................................... 11
4 Serial ATA (SATA) Drive Guidelines and Features .................................................................................... 12
SATA Hard Drives .............................................................................................................................. 12
SATA Hard Drive Cables .................................................................................................................... 12
SATA Data Cable .............................................................................................................. 12
SMART ATA Drives ............................................................................................................................ 13
Hard Drive Capacities ........................................................................................................................ 13
5 Identifying the Chassis, Routine Care, and Disassembly Preparation .................................................... 14
Chassis Designation ........................................................................................................................... 14
All-in One ........................................................................................................................... 14
Electrostatic Discharge Information .................................................................................................... 15
v
Generating Static ............................................................................................................... 15
Preventing Electrostatic Damage to Equipment ................................................................ 15
Personal Grounding Methods and Equipment ................................................................... 16
Grounding the Work Area .................................................................................................. 16
Recommended Materials and Equipment .......................................................................... 17
Operating Guidelines .......................................................................................................................... 17
Routine Care ...................................................................................................................................... 18
General Cleaning Safety Precautions ................................................................................ 18
Cleaning the Computer Case ............................................................................................ 18
Cleaning the Keyboard ...................................................................................................... 18
Cleaning the Monitor .......................................................................................................... 19
Cleaning the Mouse ........................................................................................................... 19
Service Considerations ...................................................................................................................... 19
Tools and Software Requirements .................................................................................... 19
Screws ............................................................................................................................... 20
Cables and Connectors ..................................................................................................... 20
Hard Drives ........................................................................................................................ 20
Lithium Coin Cell Battery ................................................................................................... 20
6 Illustrated parts catalog ............................................................................................................................... 22
Computer major components ............................................................................................................. 22
Mass storage devices ......................................................................................................................... 24
Sequential part number listing ............................................................................................................ 24
7 Removal and Replacement Procedures All-in One (AIO) Chassis ........................................................... 27
Preparing to Disassemble the Computer ........................................................................................... 27
Small Rear Cover ............................................................................................................................... 28
Stand .................................................................................................................................................. 29
Left Rear Cover .................................................................................................................................. 30
Optical Drive ....................................................................................................................................... 31
Hard Drive .......................................................................................................................................... 33
Right Rear Cover ................................................................................................................................ 35
Memory .............................................................................................................................................. 36
Heat Sink (Thermal Module) .............................................................................................................. 38
Processor ........................................................................................................................................... 40
WLAN Module .................................................................................................................................... 42
Webcam Module ................................................................................................................................ 44
Rear Cover ......................................................................................................................................... 46
Inverter Board ..................................................................................................................................... 48
Power Button Board ........................................................................................................................... 50
System Board Shield .......................................................................................................................... 51
vi
Fan ..................................................................................................................................................... 52
Speakers ............................................................................................................................................ 54
System Board ..................................................................................................................................... 56
Stand Bracket ..................................................................................................................................... 58
Drive Connectors ................................................................................................................................ 59
Front Bezel ......................................................................................................................................... 60
Display Panel ..................................................................................................................................... 63
Appendix A POST Error Messages ................................................................................................................ 65
POST Numeric Codes and Text Messages ....................................................................................... 66
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes ................................................ 73
Resetting the CMOS Jumper ............................................................................................................. 76
Appendix B Connector Pin Assignments ...................................................................................................... 78
Ethernet BNC ..................................................................................................................................... 78
USB .................................................................................................................................................... 78
Microphone ......................................................................................................................................... 78
Headphone ......................................................................................................................................... 79
Line-in Audio ...................................................................................................................................... 79
Line-out Audio .................................................................................................................................... 79
Appendix C Power Cord Set Requirements .................................................................................................. 80
General Requirements ....................................................................................................................... 80
Japanese Power Cord Requirements ................................................................................................ 80
Country-Specific Requirements .......................................................................................................... 81
Appendix D Specifications .............................................................................................................................. 82
All-in One Models ............................................................................................................................... 82
Index ................................................................................................................................................................... 83
vii
viii
1 Product Features
The HP Compaq 6000 Pro All-In One Business PC offers the following features:
● Processors: Intel® Pentium™ Dual Core, Core™ 2 Duo, and Celeron Core 2 Duo processors up
to 65w
● Chipset: Intel G41
● Display panel: 20” 16:9 1600x900 TN CCFL non glare
Memory: DDR3-1333; 2 SODIMMs, 4 GB maximum
●
Optical drive: 1 SlimTray DVDRW
●
Graphics: UMA graphics only, GMA X4500
●
Power supply: 150W
●
● Connectivity: Gigabit; b/g/n (1x1 with 1 internal antenna)
● Keyboard: wired
Mouse: wired
●
Webcam: VGA low light, single mic
●
Audio: AMD (Realtek ALC269)
●
Preinstalled operating systems:
●
◦ Windows 7 Professional Edition 32 with optional XP Mode (Americas)
◦ Windows 7 Professional Edition 64 with optional XP Mode (Americas)
Windows 7 Starter Edition 32 (Latin America only)
◦
Windows 7 Home Basic 64 (Latin America only)
◦
FreeDOS (Latin America only)
◦
Red Flag Linux (Latin America only)
◦
● Card reader: 6-in-1 using ALCOR Micro AU6433
● SATA drives: 2 total: 1x 3.5" HDD + 1x slim slot ODD @ 3Gb/s
Side I/O: Card reader, 2x USB-2, Mic-In and Headphone
●
Rear I/O: Power-In, RJ45, Audio-Out, 4x USB-2
●
1
Expansion slot: 1x half-size – for WLAN only
●
Ethernet LAN: Realtek RL8111E 10/100/1000
●
Front Components
Component Component
(1) Webcam LED indicator (optional) (8) Brightness decrease button
(2) Webcam (optional) (9) Drive activity LED
(3) Integrated microphone (optional along w/
webcam)
(4) 20-inch diagonal 16:9 widescreen 1600 x
900 LCD display
(5) Optical drive (12) Adjustable tilt stand
(6) Optical drive eject button (13) HP optical mouse
(7) Brightness increase button (14) HP low-profile keyboard with numeric keypad
(10) Power button and LED
(11) High-performance stereo speakers
2 Chapter 1 Product Features
Rear and Side Components
Component Component
(1) Media Card Reader LED (9) Memory access
(2) HP 6-in-1 Media Card Reader (10) (4) USB 2.0 ports
(3) (2) USB 2.0 ports (11) Stereo audio line out
(4) Microphone jack (12) RJ-45 Gigabit Ethernet port
(5) Headphone jack (13) Power connector with LED indicator
(6) Hard drive access (must remove panel) (14) Adjustable tilt stand
(7) Optical drive access (must remove panel) (15) Access cover panel
(8) Removable access panels (must remove
panel)
(16) Lock slot
Rear and Side Components 3
2 Installing and Customizing the
Software
If your computer was not shipped with a Microsoft operating system, some portions of this
documentation do not apply. Additional information is available in online help after you install the
operating system.
CAUTION: Do not add optional hardware or third-party devices to the computer until the operating
system is successfully installed. Doing so may cause errors and prevent the operating system from
installing properly.
NOTE: Be sure there is a 10.2-cm (4-inch) clearance at the back of the unit and above the monitor
to permit the required airflow.
Installing the Operating System
The first time you turn on the computer, the operating system is installed automatically. This process
takes about 5 to 10 minutes, depending on which operating system is being installed. Carefully read
and follow the instructions on the screen to complete the installation.
CAUTION: Once the automatic installation has begun, DO NOT TURN OFF THE COMPUTER
UNTIL THE PROCESS IS COMPLETE. Turning off the computer during the installation process may
damage the software that runs the computer or prevent its proper installation.
NOTE: If the computer shipped with more than one operating system language on the hard drive,
the installation process could take up to 60 minutes.
If your computer was not shipped with a Microsoft operating system, some portions of this
documentation do not apply. Additional information is available in online help after you install the
operating system.
Downloading Microsoft Windows Updates
1. To set up your Internet connection, click Start > Internet Explorer and follow the instructions on
the screen.
2. Once an Internet connection has been established, click the Start button.
3. Select the All Programs menu.
4 Chapter 2 Installing and Customizing the Software
4. Click on the Windows Update link.
In Windows 7, the Windows Update screen appears. Click view available updates and make
sure all critical updates are selected. Click the Install button and follow the instructions on the
screen.
It is recommended that you install all of the critical updates and service packs.
5. After the updates have been installed, Windows will prompt you to reboot the machine. Be sure
to save any files or documents that you may have open before rebooting. Then select Yes to
reboot the machine.
Installing or Upgrading Device Drivers (Windows systems)
When installing optional hardware devices after the operating system installation is complete, you
must also install the drivers for each of the devices.
If prompted for the i386 directory, replace the path specification with C:\i386, or use the Browse
button in the dialog box to locate the i386 folder. This action points the operating system to the
appropriate drivers.
Obtain the latest support software, including support software for the operating system from
http://www.hp.com/support. Select your country and language, select Download drivers and
software (and firmware), enter the model number of the computer, and press Enter.
Protecting the Software
To protect the software from loss or damage, keep a backup copy of all system software,
applications, and related files stored on the hard drive. Refer to the operating system or backup utility
documentation for instructions on making backup copies of your data files.
Installing or Upgrading Device Drivers (Windows systems) 5
3 Computer Setup (F10) Utility
Computer Setup (F10) Utilities
Use Computer Setup (F10) Utility to do the following:
Change factory default settings.
●
Set the system date and time.
●
● Set, view, change, or verify the system configuration, including settings for graphics, audio,
storage, communications, and input devices.
View settings for processor and memory.
●
● Modify the boot order of bootable devices such as hard drives, optical drives, or USB flash
media devices.
Run hard drive self-tests.
●
● Establish a supervisor password that controls access to Computer Setup (F10) Utility and the
settings described in this section.
Using Computer Setup (F10) Utilities
Computer Setup can be accessed only by turning the computer on or restarting the system.
To access the Computer Setup Utilities menu, complete the following steps:
1. Turn on or restart the computer.
2. Press either Esc or F10 while the “Press the ESC key for Startup Menu” message is displayed at
the bottom of the screen.
Pressing Esc displays a menu that allows you to access different options available at startup.
NOTE: If you do not press Esc or F10 at the appropriate time, you must restart the computer
and again press Esc or F10 when the monitor light turns green to access the utility.
3. If you pressed Esc, press F10 to enter Computer Setup.
4. The Computer Setup Utility screen is divided into menu headings and actions.
Five menu headings appear on the Computer Setup Utility screen:
Main
●
Advanced
●
6 Chapter 3 Computer Setup (F10) Utility
Power
●
Boot
●
Exit
●
Use the arrow keys to select the appropriate heading, then press Enter. Use the arrow (up and
down) keys to select the option you want, then press Enter. To return to the previous screen,
press Esc.
CAUTION: Do NOT turn the computer power OFF while the ROM is saving the Computer Setup
(F10) changes because the CMOS could become corrupted. It is safe to turn off the computer only
after exiting the F10 Setup screen.
Computer Setup—Main
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 3-1 Computer Setup—Main
Option Description
System Time Allows you to set system time.
System Date Allows you to set system date.
System IDs (view only)
Product Name
Serial Number
UUID
SKU Number
Family Name
Asset Tag
Feature Byte
Build ID
Language Allows you to select language.
Floppy Diskette A Specifies the capacity and physical size, if installed.
Computer Setup (F10) Utilities 7
Table 3-1 Computer Setup—Main (continued)
1st Drive
2nd Drive
System Information (view only)
For each, allows you to set:
● Port Configuration - enable/disable (default is enabled)
Capacity (Size - HDD only; view only)
Transfer mode (view only)
● Smart Support - run HDD self-test for selected channel:
◦
◦
◦ SMART Extended Self-Test
● Installed Memory
Memory Bank 1
●
Memory Bank 2
●
● BIOS Revision
● Core Version
SMART Status Check
SMART Short Self-Test
8 Chapter 3 Computer Setup (F10) Utility
Computer Setup—Advanced
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
WARNING! Setting items on this menu to incorrect values may cause your system to malfunction.
Table 3-2 Computer Setup—Advanced
Option Description
CPU Type (view only)
CPU Speed (view only)
Cache RAM (view only)
Supervisor Password Allows you to establish, disable, or change the supervisor password.
User Password Allows you to establish, disable, or change the user password.
NOTE: Only displays if a Supervisor password is set.
Onboard LAN Allows you to disable/enable onboard LAN controller. Default is enabled.
Onboard WLAN Allows you to disable/enable onboard WLAN controller. Default is enabled.
Onboard LAN Boot
ROM
Onboard 1394 Allows you to enable/disable all 1394 ports. Default is enabled.
Primary Video Adapter Allows you to select the boot display device when more than 2 video options are offered by the
SATA Controller Allows you to disable/enable the SATA controller. Default is enabled.
SATA Controller Mode If SATA Controller is enabled, allows you to set the mode to:
Onboard Audio Allows you to set the onboard audio to:
USB Ports Allows you to individually disable/enable USB ports. Default is enabled.
Change Supervisor
Password
Allows you to disable/enable the boot ROM of the onboard LAN chip. Default is enabled.
system:
Integrated (Onboard)
●
PCI-E
●
● IDE
● AHCI (default)
● Auto (default)
Disabled
●
Enabled
●
Allows you to change the supervisor password. Press Enter to change the password. Press Enter
again to disable the password.
Computer Setup—Power
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Computer Setup (F10) Utilities 9
Table 3-3 Computer Setup—Power
Option Description
After AC Power
Failure
XD(Execute Disable) Disables/enables XD bit. Default is enabled.
Virtualization
Technology
WOL in S5 Allows you to enable/disable limited (normal shutdown) WOL from S5 support. Default is disabled.
Allows you to select system restart behavior after power loss:
● Stay Off (default)
●
●
Allows you to enable/disable the virtualization features of the processor. Changing this setting
requires turning the computer off and then back on. Default is disabled.
Computer Setup—Boot
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 3-4 Computer Setup—Boot
Option Description
Boot-time Diagnostic
Screen
ESC: Boot Menu Enables/disables the ability to press the Esc key to access the boot menu during boot.
Disables/enables POST diagnostic messages display. Default is disabled.
Power On
Auto
F9: Diagnostics Enables/disables the ability to press the F9 key to access the Diagnostics menu during boot.
F10: Setup Enables/disables the ability to press the F10 key to access the Setup menu during boot.
F11: Recovery Enables/disables the ability to press the F11 key to access the recovery menu during boot.
F12: Boot from LAN Enables/disables the ability to press the F12 key to boot from LAN.
Boot Device Priority
1st Boot Device
2nd Boot Device
3rd Boot Device
4th Boot Device
Floppy Group Boot
Priority
CD-ROM Group Boot
Priority
Allows you to specify which device groups will boot first, second, third, and fourth or to disable any
of the four:
Floppy Group
●
CD-ROM Group
●
Hard Drive Group
●
Network Boot Group
●
NOTE: MS-DOS drive lettering assignments may not apply after a non-MS-DOS operating
system has started.
Specifies boot device priority within removable devices.
Press Enter to select the device, up or down arrow to move the selected device, Enter to select
the device, Esc to abort.
Specifies boot device priority within CD/DVD drives.
10 Chapter 3 Computer Setup (F10) Utility
Table 3-4 Computer Setup—Boot (continued)
Hard Drive Group
Boot Priority
Network Group Boot
Priority
Computer Setup—Exit
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 3-5 Computer Setup—Exit
Option Description
Exit Saving Changes Press Enter to exit saving changes.
Exit Discarding
Changes
Load Setup Defaults Press Enter to load setup defaults.
Discard Changes Press Enter to discard changes.
Save Changes Press Enter to save changes.
Specifies boot device priority within hard drives.
Specifies boot device priority within bootable network devices.
Press Enter to exit discarding changes.
Recovering the Configuration Settings
To reset all BIOS Setup options to their default values (including options for Ctrl+F10), you must enter
F10 Setup mode and press F5.
This does not include updates to system date, system time, supervisor password, user
password, and CPU frequency multiplier.
Recovering the Configuration Settings 11
4 Serial ATA (SATA) Drive Guidelines
and Features
NOTE: HP only supports the use of SATA hard drives on these models of computer. No Parallel
ATA (PATA) drives are supported.
SATA Hard Drives
Serial ATA Hard Drive Characteristics
Number of pins/conductors in data cable 7/7
Number of pins in power cable 15
Maximum data cable length 39.37 in (100 cm)
Data interface voltage differential 400-700 mV
Drive voltages 3.3 V, 5 V, 12 V
Jumpers for configuring drive N/A
Data transfer rate 3.0 Gb/s
SATA Hard Drive Cables
SATA Data Cable
Always use an HP approved SATA 3.0 Gb/s cable as it is fully backwards compatible with the SATA
1.5 Gb/s drives.
Current HP desktop products ship with SATA 3.0 Gb/s hard drives.
SATA data cables are susceptible to damage if overflexed. Never crease a SATA data cable and
never bend it tighter than a 30 mm (1.18 in) radius.
The SATA data cable is a thin, 7-pin cable designed to transmit data for only a single drive.
12 Chapter 4 Serial ATA (SATA) Drive Guidelines and Features
SMART ATA Drives
The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal
Computers have built-in drive failure prediction that warns the user or network administrator of an
impending failure or crash of the hard drive. The SMART drive tracks fault prediction and failure
indication parameters such as reallocated sector count, spin retry count, and calibration retry count. If
the drive determines that a failure is imminent, it generates a fault alert.
Hard Drive Capacities
The combination of the file system and the operating system used in the computer determines the
maximum usable size of a drive partition. A drive partition is the largest segment of a drive that may
be properly accessed by the operating system. A single hard drive may therefore be subdivided into a
number of unique drive partitions in order to make use of all of its space.
Because of the differences in the way that drive sizes are calculated, the size reported by the
operating system may differ from that marked on the hard drive or listed in the computer specification.
Drive size calculations by drive manufacturers are bytes to the base 10 while calculations by
Microsoft are bytes to the base 2.
Maximum Size
File System Controller Type Operating System Partition Drive
Drive/Partition Capacity Limits
FAT 32 ATA Windows XP/Vista/Windows 7 32 GB 2 TB
NTFS ATA Windows XP/Vista/Windows 7 2 TB 2 TB
SMART ATA Drives 13
5 Identifying the Chassis, Routine Care,
and Disassembly Preparation
This chapter provides general service information for the computer. Adherence to the procedures and
precautions described in this chapter is essential for proper service.
CAUTION: When the computer is plugged into an AC power source, voltage is always 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.
Chassis Designation
An all-in one form factor is available.
All-in One
14 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation
Electrostatic Discharge Information
A sudden discharge of static electricity from your finger or other conductor can destroy static-sensitive
devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic
device exposed to electrostatic discharge (ESD) may not appear to be affected at all and can work
perfectly throughout a normal cycle. The device may function normally for a while, but it has been
degraded in the internal layers, reducing its life expectancy.
Networks built into many integrated circuits provide some protection, but in many cases, the
discharge contains enough power to alter device parameters or melt silicon junctions.
Generating Static
The following table shows that:
Different activities generate different amounts of static electricity.
●
● Static electricity increases as humidity decreases.
Relative Humidity
Event 55% 40% 10%
Walking across carpet
Walking across vinyl floor
Motions of bench worker
Removing DIPs* from plastic tube
Removing DIPs* from vinyl tray
Removing DIPs* from Styrofoam
Removing bubble pack from PCB
Packing PCBs in foam-lined box
*DIPs are Dual in-line packages, used for packaging integrated circuits.
DIPs are multi-packaged inside plastic tubes, trays, or Styrofoam.
7,500 V
3,000 V
400 V
400 V
2,000 V
3,500 V
7,000 V
5,000 V
NOTE: 700 volts can degrade a product.
Preventing Electrostatic Damage to Equipment
Many electronic components are sensitive to ESD. Circuitry design and structure determine the
degree of sensitivity. The following packaging and grounding precautions are necessary to prevent
damage to electric components and accessories.
15,000 V
5,000 V
800 V
700 V
4,000 V
5,000 V
20,000 V
11,000 V
35,000 V
12,000 V
6,000 V
2,000 V
11,500 V
14,500 V
26,500 V
21,000 V
To avoid hand contact, transport products in static-safe containers such as tubes, bags, or
●
boxes.
Protect all electrostatic parts and assemblies with conductive or approved containers or
●
packaging.
Keep electrostatic sensitive parts in their containers until they arrive at static-free stations.
●
Electrostatic Discharge Information 15
Place items on a grounded surface before removing them from their container.
●
Always be properly grounded when touching a sensitive component or assembly.
●
Avoid contact with pins, leads, or circuitry.
●
Place reusable electrostatic-sensitive parts from assemblies in protective packaging or
●
conductive foam.
Personal Grounding Methods and Equipment
Use the following equipment to prevent static electricity damage to equipment:
● Wrist straps are flexible straps with a maximum of one-megohm ± 10% resistance in the ground
cords. To provide proper ground, a strap must be worn snug against bare skin. The ground cord
must be connected and fit snugly into the banana plug connector on the grounding mat or
workstation.
● Heel straps/Toe straps/Boot straps can be used at standing workstations and are compatible
with most types of shoes or boots. On conductive floors or dissipative floor mats, use them on
both feet with a maximum of one-megohm ± 10% resistance between the operator and ground.
Static Shielding Protection Levels
Method Voltage
Antistatic plastic
Carbon-loaded plastic
Metallized laminate
Grounding the Work Area
To prevent static damage at the work area, use the following precautions:
Cover the work surface with approved static-dissipative material. Provide a wrist strap connected
●
to the work surface and properly grounded tools and equipment.
Use static-dissipative mats, foot straps, or air ionizers to give added protection.
●
Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate.
●
Handle them only at static-free work areas.
Turn off power and input signals before inserting and removing connectors or test equipment.
●
Use fixtures made of static-safe materials when fixtures must directly contact dissipative
●
surfaces.
Keep work area free of nonconductive materials such as ordinary plastic assembly aids and
●
Styrofoam.
Use field service tools, such as cutters, screwdrivers, and vacuums, that are conductive.
●
1,500
7,500
15,000
16 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation
Recommended Materials and Equipment
Materials and equipment that are recommended for use in preventing static electricity include:
● Antistatic tape
Antistatic smocks, aprons, or sleeve protectors
●
Conductive bins and other assembly or soldering aids
●
Conductive foam
●
Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance
●
● Static-dissipative table or floor mats with hard tie to ground
● Field service kits
Static awareness labels
●
Wrist straps and footwear straps providing one-megohm +/- 10% resistance
●
Material handling packages
●
Conductive plastic bags
●
● Conductive plastic tubes
● Conductive tote boxes
Opaque shielding bags
●
Transparent metallized shielding bags
●
Transparent shielding tubes
●
Operating Guidelines
To prevent overheating and to help prolong the life of the computer:
● Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and
cold.
Operate the computer on a sturdy, level surface. Leave a 10.2-cm (4-inch) clearance on all
●
vented sides of the computer and above the monitor to permit the required airflow.
Never restrict the airflow into the computer by blocking any vents or air intakes. Do not place the
●
keyboard, with the keyboard feet down, directly against the front of the desktop unit as this also
restricts airflow.
● Occasionally clean the air vents on all vented sides of the computer. Lint, dust, and other foreign
matter can block the vents and limit the airflow. Be sure to unplug the computer before cleaning
the air vents.
Never operate the computer with the cover removed.
●
Do not place computers so near each other that they are subject to each other’s re-circulated or
●
preheated air.
Keep liquids away from the computer and keyboard.
●
Operating Guidelines 17
Never cover the ventilation slots on the monitor with any type of material.
●
Install or enable power management functions of the operating system or other software,
●
including sleep states.
Routine Care
General Cleaning Safety Precautions
1. Never use solvents or flammable solutions to clean the computer.
2. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and
then use the cloth on the component.
3. Always unplug the computer when cleaning with liquids or damp cloths.
4. Always unplug the computer before cleaning the keyboard, mouse, or air vents.
5. Disconnect the keyboard before cleaning it.
6. Wear safety glasses equipped with side shields when cleaning the keyboard.
Cleaning the Computer Case
Follow all safety precautions in General Cleaning Safety Precautions on page 18 before cleaning the
computer.
To clean the computer case, follow the procedures described below:
● To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab.
● For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by wiping it with
a cloth or swab dampened with clear water.
● For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed as the alcohol will
evaporate quickly and not leave a residue.
After cleaning, always wipe the unit with a clean, lint-free cloth.
●
● Occasionally clean the air vents on the computer. Lint and other foreign matter can block the
vents and limit the airflow.
Cleaning the Keyboard
Follow all safety precautions in General Cleaning Safety Precautions on page 18 before cleaning the
keyboard.
To clean the tops of the keys or the keyboard body, follow the procedures described in
Computer Case on page 18.
When cleaning debris from under the keys, review all rules in
on page 18 before following these procedures:
Cleaning the
General Cleaning Safety Precautions
18 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation
CAUTION: Use safety glasses equipped with side shields before attempting to clean debris from
under the keys.
Visible debris underneath or between the keys may be removed by vacuuming or shaking.
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Canned, pressurized air may be used to clean debris from under the keys. Caution should be
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used as too much air pressure can dislodge lubricants applied under the wide keys.
If you remove a key, use a specially designed key puller to prevent damage to the keys. This
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tool is available through many electronic supply outlets.
CAUTION: Never remove a wide leveled key (like the space bar) from the keyboard. If these
keys are improperly removed or installed, the keyboard may not function properly.
Cleaning under a key may be done with a swab moistened with isopropyl alcohol and squeezed
●
out. Be careful not to wipe away lubricants necessary for proper key functions. Use tweezers to
remove any fibers or dirt in confined areas. Allow the parts to air dry before reassembly.
Cleaning the Monitor
Wipe the monitor screen with a clean cloth moistened with water or with a towelette designed for
●
cleaning monitors. Do not use sprays or aerosols directly on the screen; the liquid may seep into
the housing and damage a component. Never use solvents or flammable liquids on the monitor.
To clean the monitor body follow the procedures in
●
Cleaning the Mouse
Before cleaning the mouse, ensure that the power to the computer is turned off.
Clean the mouse ball by first removing the retaining plate and the ball from the housing. Pull out
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any debris from the ball socket and wipe the ball with a clean, dry cloth before reassembly.
To clean the mouse body, follow the procedures in
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Service Considerations
Listed below are some of the considerations that you should keep in mind during the disassembly and
assembly of the computer.
Tools and Software Requirements
To service the computer, you need the following:
Torx T-15 screwdriver (HP screwdriver with bits, PN 161946-001)
●
Flat-bladed screwdriver (may sometimes be used in place of the Torx screwdriver)
●
Phillips #2 screwdriver
●
Cleaning the Computer Case on page 18.
Cleaning the Computer Case on page 18.
● Diagnostics software
● HP tamper-resistant T-15 wrench (Smart Cover FailSafe Key, PN 166527-001) or HP tamper-
resistant bits (Smart Cover FailSafe Key, PN 166527-002)
Service Considerations 19
Screws
The screws used in the computer are not interchangeable. They may have standard or metric threads
and may be of different lengths. If an incorrect screw is used during the reassembly process, it can
damage the unit. HP strongly recommends that all screws removed during disassembly be kept with
the part that was removed, then returned to their proper locations.
CAUTION: As each subassembly is removed from the computer, it should be placed away from the
work area to prevent damage.
Cables and Connectors
Most cables used throughout the unit are flat, flexible cables. These cables must be handled with
care to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or
removal from the connector. Handle cables by the connector whenever possible. In all cases, avoid
bending or twisting the cables, and ensure that the cables are routed in such a way that they cannot
be caught or snagged by parts being removed or replaced.
CAUTION: When servicing this computer, ensure that cables are placed in their proper location
during the reassembly process. Improper cable placement can damage the computer.
Hard Drives
Handle hard drives as delicate, precision components, avoiding all physical shock and vibration. This
applies to failed drives as well as replacement spares.
If a drive must be mailed, place the drive in a bubble-pack mailer or other suitable protective
●
packaging and label the package “Fragile: Handle With Care.”
Do not remove hard drives from the shipping package for storage. Keep hard drives in their
●
protective packaging until they are actually mounted in the CPU.
Avoid dropping drives from any height onto any surface.
●
If you are inserting or removing a hard drive, turn off the computer. Do not remove a hard drive
●
while the computer is on or in standby mode.
Before handling a drive, ensure that you are discharged of static electricity. While handling a
●
drive, avoid touching the connector. For more information about preventing electrostatic
damage, refer to
Do not use excessive force when inserting a drive.
●
● Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic
fields such as monitors or speakers.
Electrostatic Discharge Information on page 15
Lithium Coin Cell Battery
The battery that comes with the computer provides power to the real-time clock and has a minimum
lifetime of about three years.
See the appropriate removal and replacement chapter for the chassis you are working on in this
guide for instructions on the replacement procedures.
20 Chapter 5 Identifying the Chassis, Routine Care, and Disassembly Preparation
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