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...

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...

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...

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...

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...

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...

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...

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...