HP Pavilion G4 1000 Notebook Pc Series Service Guide

							CAUTION:A product can be degraded by as little as 700 V.
Typical electrostatic voltage levels
 Relative humidity
Event 10% 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
Preliminary replacement requirements 43 
						

							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.
●Turn off power and input signals before inserting or removing connectors or test equipment.
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							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 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 plastics Bags 1,500 V
Carbon-loaded plastic Floor mats 7,500 V
Metallized laminate Floor mats 5,000 V
Preliminary replacement requirements 45 
						

							Component replacement procedures
This chapter provides removal and replacement procedures.
There are as many as 51 screws that must be removed, replaced, or loosened when servicing
the computer. Make special note of each screw and screw lock size and location during removal
and replacement.
Service tag
When ordering parts or requesting information, provide the computer serial number and model
number provided on the service tag.
Item Description Function
(1)Serial number (s/n) This is an alphanumeric identifier that is unique to
each product.
(2)Part number/Product number (p/n) This number provides specific information about
the products hardware components. The part
number helps a service technician to determine
what components and parts are needed.
(3)Model description This is the alphanumeric identifier needed to locate
documents, drivers, and support for the computer.
(4)Warranty period This number describes the duration of the warranty
period for the computer.
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							Computer feet
The computer feet are adhesive-backed rubber pads. The feet are included in the Rubber Feet Kit,
spare part number 639455-001. There are 4 rubber feet that attach to the base enclosure in
the locations illustrated below.
Component replacement procedures 47 
						

							Battery
DescriptionSpare part number
6-cell, 55-Whr, 2.55-Ah Li-ion battery 593554-001
6-cell, 47-Whr, 2.20-Ah Li-ion battery 593553-001
Before disassembling the computer, follow these steps:
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 unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
Remove the battery:
1.Slide the battery release latch (1) to release the battery.
2.Pivot the front edge of the battery (2) up and back.
3.Remove the battery (3) from the computer.
To insert the battery:
1.Align the tabs on the rear edge of the battery with the notches on the rear edge of the battery
bay.
2.Pivot the front edge of the battery down into the battery bay until it is seated. (The battery
release latch will automatically lock into place.)
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							Optical drive
NOTE:The optical drive spare part kit includes a bezel and bracket.
DescriptionSpare part number
Blu-ray ROM DVD±R/RW Super Multi Double-Layer Drive 639449-001 and
659848-001
DVD±RW and CD-RW Super Multi Double-Layer Combo Drive 639448-001 and
659847-001
Optical drive bay space saver 659618-001
Before removing the optical drive, follow these steps:
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 unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
4.Remove the battery (see 
Battery on page 48).
Remove the optical drive:
1.Loosen the two captive screws (1) that secure the service cover to the computer.
2.Lift the rear edge of the service cover (2) up and forward until it rests at an angle.
3.Remove the service cover. The service cover is available in the Plastics Kit, spare part number
639453-001.
Component replacement procedures 49 
						

							4.Remove the Phillips PM2.5×6.0 screw that secures the optical drive to the computer.
5.Insert a thin tool, such as an unbent paper clip (1), into the optical drive release hole. (The
optical drive tray releases.)
6.Use the optical drive tray to remove the optical drive (2) from the computer.
7.If it is necessary to replace the optical drive bracket, position the optical drive with the rear panel
toward you.
8.Remove the two Phillips PM2.0×4.0 screws (1) that secure the bracket to the optical drive.
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							9.Remove the optical drive bracket (2).
Reverse this procedure to reassemble and install the optical drive.
Hard drive
NOTE:The hard drive spare part kit does not include the hard drive cable, hard drive isolators, or
Mylar shield. The hard drive isolators and Mylar shield are included in the Hard Drive Hardware Kit,
spare part number 639444-001. The hard drive cable is included in the Cable Kit, spare part number
639442-001.
DescriptionSpare part number
750-GB, 5400-rpm644351-001
640-GB, 5400-rpm637312-001
500-GB, 7200-rpm644685-001
320-GB, 7200-rpm645089-001
Before removing the mass storage device, follow these steps:
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 unplugging the power cord from the AC outlet
and then unplugging the AC adapter from the computer.
4.Remove the battery (see 
Battery on page 48).
5.Remove the service cover (see 
Optical drive on page 49).
Remove the hard drive:
1.Disconnect the hard drive cable (1) from the system board.
Component replacement procedures 51 
						

							2.Lift the front edge of the hard drive (2) until it rests at an angle.
3.Remove the hard drive.
4.If it is necessary to replace the hard drive cable (1) or the hard drive isolators (2) from the hard
drive, remove and replace the components. The hard drive cable is included in the Cable Kit,
spare part 639442-001. The hard drive isolators are available in the Hard Drive Hardware Kit,
spare part number 639444-001.
Reverse this procedure to reassemble and install the mass storage device.
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