HP Pavilion Dv4 2100 Entertainment Notebook Pc Series Manual

							3–18Maintenance and Service Guide
Illustrated parts catalog
570755-161Keyboard for use in Latin America (textured, black models)
570755-201Keyboard for use in Brazil (textured, black models
570755-281Keyboard for use in Thailand (textured, black models)
570755-291Keyboard for use in Japan (textured, black models)
570755-AB1Keyboard for use in Taiwan (textured, black models)
570755-AD1Keyboard for use in South Korea (textured, black models)
573188-001Display enclosure for use with plaid computer models (includes Logo light and cables)
573195-001Webcam/microphone module
573197-001Display bezel
575567-001250 GB, 7200 rpm hard drive (includes bracket)
575568-001320 GB, 7200 rpm hard drive (includes bracket)
575569-001500 GB, 7200 rpm hard drive (includes bracket)
577509-001Mini Card bracket
580846-001160 GB, 7200 rpm hard drive (includes bracket)
590349-001System board equipped with discrete graphics subsystems
590350-001System board equipped with UMA graphics subsystems
590351-0011024 MB memory module (1066 MHz, DDR3)
590352-0012048 MB memory module (1066 MHz, DDR3)
590353-0014096 MB memory module (1066 MHz, DDR3)
591950-001Top cover for use only in white computer models without a Fingerprint Reader (includes TouchPad 
and cable)
591951-001Top cover for use only in white computer models with a Fingerprint Reader (includes TouchPad and 
cable)
591952-001Top cover for use only in black computer models without a Fingerprint Reader (includes TouchPad 
and cable)
591953-001Top cover for use only in black computer models with a Fingerprint Reader (includes TouchPad and 
cable)
591954-001Top cover for use only in plaid computer models without a Fingerprint Reader (includes TouchPad 
and cable)
591955-001Top cover for use only in plaid computer models with a Fingerprint Reader (includes TouchPad and 
cable)
591956-001Heat sink assembly for use in computer models with discrete graphics subsystems
591957-001Heat sink assembly for use in computer models with UMA graphics subsystems
594105-001Wireless antenna cable
594110-00114.1-in WXGA BrightView display assembly for use with black computer models
594110-00214.1-in WXGA BrightView display assembly with wireless mobile broadband for use with black 
computer models
594111-00114.1-in WXGA BrightView display assembly for use with white computer models
594111-00214.1-in WXGA BrightView display assembly with wireless mobile broadband for use with white 
computer models
594112-00114.1-in WXGA BrightView display assembly for use with plaid computer models
(Continued)
Spare part number Description 
						

							Illustrated parts catalog
Maintenance and Service Guide3–19
594112-00214.1-in WXGA BrightView display assembly with wireless mobile broadband for use with plaid 
computer models
594187-001Intel Arrandale Single-Core i5-520M processor (2.4 GHz, 3-MB L3 cache, 1066 MHZ SC Turbo)
594188-001Intel Arrandale Single-Core i5-540M processor (2.53 GHz, 3-MB L3 cache, 1066 MHZ SC Turbo)
594532-001Keyboard cover (plaid models)
Spare part number Description 
						

							Maintenance and Service Guide4–1
4
Removal and replacement procedures
Preliminary replacement requirements
Tools required
The following tools are required to complete the removal and replacement procedures: 
■Flat-bladed screwdriver 
■Magnetic screwdriver 
■Phillips P0 and P1 screwdrivers 
Service considerations
The following sections include some of the considerations that you must keep in mind during disassembly and 
assembly procedures. 
✎As you remove each subassembly from the computer, place the subassembly (and all accompanying screws) away 
from the work area to prevent damage. 
Plastic parts
ÄCAUTION: Using excessive force during disassembly and reassembly damages plastic parts. Use care when 
handling the plastic parts. Apply pressure only at the points designated in the maintenance instructions. 
Cables and connectors
ÄCAUTION: When servicing the computer, be sure that cables are placed in their proper locations during the 
reassembly process. Improper cable placement damages the computer. 
Cables must be handled with extreme care to avoid damage. Apply only the tension required to unseat or seat the 
cables during removal and insertion. Handle cables by the connector whenever possible. In all cases, avoid 
bending, twisting, or tearing cables. Be sure that cables are routed in such a way that they cannot be caught or 
snagged by parts being removed or replaced. Handle flex cables with extreme care; these cables tear easily.  
						

							4–2Maintenance and Service Guide
Removal and replacement procedures
Drive handling
ÄCAUTION: Drives are fragile components that must be handled with care. To prevent damage to the computer, 
damage to a drive, or loss of information:
■Before removing or inser ting a ha rd drive, shut down the computer. If you are unsure whether the computer is off 
or in Hibernation, turn the computer on, and then shut it down through the operating system. 
■Before handling a drive, be sure that you are discharged of static electricity. While handling a drive, avoid 
touching the connector.
■Before removing a diskette drive or optical drive, be sure that a diskette or disc is not in the drive and be sure 
that the optical drive tray is closed.
■Handle drives on surfaces covered with at least one inch of shock-proof foam. 
■Avoid dropping drives from any height onto any surface.
■After removing a hard drive, an optical drive, or a diskette drive, place it in a static-proof bag.
■Avoid exposing a hard drive to products that have magnetic fields, such as monitors or speakers. 
■Avoid exposing a drive to temperature extremes or liquids. 
■If a drive must be mailed, place the drive in a bubble pack mailer or other suitable form of protective packaging 
and label the package “FRAGILE.”
Grounding guidelines
Electrostatic discharge damage
Electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure determine the 
degree of sensitivity. Networks built into many integrated circuits provide some protection, but in many cases, ESD 
contains enough power to alter device parameters or melt silicon junctions. 
A discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or 
microcircuitry. Even if the spark is neither felt nor heard, damage might have occurred. 
An electronic device exposed to ESD might not be affected at all and might work perfectly throughout a normal 
cycle. Or the device might function normally for a while, and then degrade in the internal layers, reducing its life 
expectancy. 
ÄCAUTION: To prevent damage to the computer when you are removing or installing internal components:
■Keep components in their electrostatic-safe containers until you are ready to install them.
■Use nonmagnetic tools. 
■Before touching an electronic component, discharge static electricity by using the guidelines described in 
this
 section.
■Avoid touching pins, leads, and circuitry. Handle electronic components as little as possible.
■If you remove a component, place it in an electrostatic-safe container. 
						

							Removal and replacement procedures
Maintenance and Service Guide4–3
The following table shows how humidity affects the electrostatic voltage levels generated by different activities.
ÄCAUTION: A product can be degraded by as little as 700 V. 
Packaging and transporting guidelines
Follow these grounding guidelines when packaging and transporting equipment: 
■To avoid hand contact, transport products in static-safe tubes, bags, or boxes. 
■Protect ESD-sensitive parts and assemblies with conductive or approved containers or packaging. 
■Keep ESD-sensitive parts in their containers until the parts arrive at static-free workstations. 
■Place items on a grounded surface before removing items from their containers. 
■Always be properly grounded when touching a component or assembly. 
■Store reusable ESD-sensitive parts from assemblies in protective packaging or nonconductive foam. 
■Use transporters and conveyors made of antistatic belts and roller bushings. Be sure that mechanized equipment 
used for moving materials is wired to ground and that proper materials are selected to avoid static charging. 
When grounding is not possible, use an ionizer to dissipate electric charges. 
Workstation guidelines
Follow these grounding workstation guidelines: 
■Cover the workstation with approved static-shielding material. 
■Use a wrist strap connected to a properly grounded work surface and use properly grounded tools and 
equipment. 
■Use conductive field service tools, such as cutters, screwdrivers, and vacuums. 
■When fixtures must directly contact dissipative surfaces, use fixtures made only of static-safe materials. 
■Keep the work area free of nonconductive materials, such as ordinary plastic assembly aids and Styrofoam. 
■Handle ESD-sensitive components, parts, and assemblies by the case or PCM laminate. Handle these items 
only at static-free workstations. 
■Avoid contact with pins, leads, or circuitry. 
■Shut down power and input signals before inserting or removing connectors or test equipment. 
Relative humidity 
Event10% 40% 55% 
Walking across carpet 35,000 V 15,000 V 7,500 V 
Walking across vinyl floor 12,000 V 5,000 V 3,000 V 
Motions of bench worker 6,000 V 800 V 400 V 
Removing DIPS from plastic tube 2,000 V 700 V 400 V 
Removing DIPS from vinyl tray 11,500 V 4,000 V 2,000 V 
Removing DIPS from Styrofoam 14,500 V 5,000 V 3,500 V 
Removing bubble pack from PCB 26,500 V 20,000 V 7,000 V 
Packing PCBs in foam-lined box 21,000 V 11,000 V 5,000 V  
						

							4–4Maintenance and Service Guide
Removal and replacement procedures
Equipment guidelines
Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation. 
■When seated, wear a wrist strap connected to a grounded system. Wrist straps are flexible straps with a 
minimum of one megohm ±10% resistance in the ground cords. To provide proper ground, wear a strap snugly 
against the skin at all times. On grounded mats with banana-plug connectors, use alligator clips to connect a 
wrist strap. 
■When standing, use foot straps and a grounded floor mat. Foot straps (heel, toe, or 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 foot straps on both feet with a minimum of one megohm resistance between the 
operator and ground. To be effective, the conductive strips must be worn in contact with the skin. 
The following grounding equipment is recommended to prevent electrostatic damage: 
■Antistatic tape 
■Antistatic smocks, aprons, and sleeve protectors 
■Conductive bins and other assembly or soldering aids 
■Nonconductive foam 
■Conductive tabletop workstations with ground cords of one megohm resistance 
■Static-dissipative tables or floor mats with hard ties to the ground 
■Field service kits 
■Static awareness labels 
■Material-handling packages 
■Nonconductive plastic bags, tubes, or boxes 
■Metal tote boxes 
■Electrostatic voltage levels and protective materials 
The following table lists the shielding protection provided by antistatic bags and floor mats.
Material Use Voltage protection level 
Antistatic plastic Bags 1,500 V 
Carbon-loaded plastic Floor mats 7,500 V 
Metallized laminate Floor mats 5,000 V  
						

							Removal and replacement procedures
Maintenance and Service Guide4–5
Component replacement procedures
This chapter provides removal and replacement procedures. 
There are as many as 95 screws, in 10 different sizes, that must be removed, replaced, or loosened when servicing 
the computer. Make special note of each screw size and location during removal and replacement. 
Service tag
When ordering parts or requesting information, provide the computer serial number and model description 
provided on the service tag.
ItemComponentDescription
1Product nameThe name affixed to the front of the computer.
2Serial number (s/n)An alphanumeric identifier that is unique to each product.
3Part number/Product number (p/n)This number provides specific information about the product’s hardware 
components. The part number helps a service technician to determine which 
components and parts are needed.
4Model descriptionAn alphanumeric identifier used to locate documents, drivers, and support for 
your computer.
5Warranty periodThe duration of the warranty period for the computer. 
						

							4–6Maintenance and Service Guide
Removal and replacement procedures
Computer feet
The computer feet are adhesive-backed rubber pads. The feet are included in the Rubber Kit, spare part number 
486874-001. There are six rubber feet that attach to the base enclosure in the locations illustrated below. 
						

							Removal and replacement procedures
Maintenance and Service Guide4–7
Battery
Before disassembling the computer:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, 
and then shut it down through the operating system. 
2. Disconnect all external devices connected to the computer. 
3. Disconnect the power from the computer by first disconnecting the power cord from the AC outlet and then 
disconnecting the AC adapter from the computer. 
Remove the battery:
1. Turn the computer upside down on a flat surface, with the battery bay toward you. 
2. Slide the battery release latch 1 to release the battery. 
3. Pivot the battery 2 upward and lift it out of the computer 3. 
To insert the battery, insert the rear edge of the battery into the battery bay and pivot the front edge downward until 
the battery is seated. The battery release latch automatically locks the battery into place 
DescriptionSpare part number
12-cell Li-Ion (2.2 Ah, 95 Wh)484172-001
6-cell Li-Ion (2.55 Ah, 55 Wh)484171-001
6-cell Li-Ion (2.2 Ah, 47 Wh) 484170-001
3-cell Li-Ion (4.4 Ah, 47 Wh) 516915-001 
						

							4–8Maintenance and Service Guide
Removal and replacement procedures
Hard Drive
✎The Hard Drive spare part kit includes a hard drive bracket.
Before removing the Hard Drive:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the computer on, 
and then shut it down through the operating system. 
2. Disconnect all external devices connected to the computer. 
3. Disconnect the power from the computer by first disconnecting the power cord from the AC outlet and then 
disconnecting the AC adapter from the computer. 
4. Remove the battery (see “Battery” on page 4-7). 
Remove the Hard Drive:
1. Position the computer with the front toward you.
2. Remove the two Phillips PM2.5×6.0 captive screws 1 that secure the hard drive cover to the computer. 
3. Lift the left side 2 of the hard drive cover, swing it to the right, and remove the cover 3. The hard drive cover 
is included in the Plastics Kit, spare part number 486833-001.
4. Remove the three Phillips PM2.0×4.0 screws 1 that secure the hard drive to the computer.
5. Use the Mylar tab 2 on the hard drive to slide the hard drive 3 to the left.
6. Remove the hard drive 4 from the hard drive bay. 
DescriptionSpare part number
500 GB, 7200 rpm hard drive 575569-001
320 GB, 7200 rpm hard drive 575568-001
250 GB, 7200 rpm hard drive 575567-001
160 GB, 7200 rpm hard drive 580846-001
Hard Drive Hardware Kit 482158-001
Hard Drive Hardware Kit, MultiBay488128-001
Hard Drive MultiBay blank491876-001