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...

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...

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....

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...

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...

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...

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.
50...

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,...

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.
52 Chapter 4...