HP Omnibook Xe2 Service Manual

							HP OmniBook XE2 Removal and Replacement 2-1
This chapter tells you how to remove and replace the following components and assemblies. A bullet
(
·) indicates that an item is user-replaceable.
 Table 2-1. Removal Cross-Reference
 
 · Battery (page 2-3).
 Bottom case (table on page 2-21).
 CD-ROM drive (table on page 2-21).
 CPU module (page 2-17)
 Display bezel (table on page 2-21).
 Display case (table on page2-21).
 Fan (page 2-7).
 Floppy disk drive (table on page 2-21).
 · Foot (table on page 2-7).
 · Hard disk drive (page 2-6).
 Heatsink (table on page 2-21).
 Hinge (table on page 2-21).
  
 Hinge cover (table on page 2-21).
 Inverter PCA (table on page 2-21).
 LED PCA (table on page 2-21).
 Keyboard (page 2-9).
 LCD brackets (table on page 2-21).
 LCD flex cable (table on page 2-21).
 LCD module (page 2-21).
 Motherboard (page 2-17).
 · RAM board (page 2-3).
 · RAM module cover (table on page 2-7).
 Top case (page 2-15).
 
  Caution
 
Always provide proper grounding when performing repairs. Without proper grounding, an
electrostatic discharge may damage the OmniBook and its components.
 
Note
 
Reassembly steps are the reverse of the removal steps. Reassembly notes are included at the
end of each section.
There are some removal and replacement procedures that differ between Omnibook XE2
technologies.  Refer to the Technology Code description in section 5.3 for details.  The
Technology Code (e.g DD) will be referenced in the procedures in order to identify these
differences. 
						

							2-2 Removal and Replacement HP OmniBook XE2
Table 2-2. Required Equipment
 · 
Small Phillips screwdriver, preferably magnetized.
 · 5 mm hex driver.
 · Pointed knife or probe.
 · Small flat-blade screwdriver.
 · uPGA-1 CPU removal tool (Technology Code DD)
 Table 2-3. Recommended Screw Torques
Screw Thread SizeTorque (kgf•cm)Torque (lbf•in)
M21.3 – 1.8 1.1 – 1.5
M2.5 (4–5 mm long) 3.0 – 3.5 2.6 – 3.0
M2.5 (16–19 mm long) 2.5 – 3.0 2.2 – 2.6
M3 3.0 – 3.5 2.6 – 3.0 
						

							HP OmniBook XE2 Removal and Replacement 2-3
Removing the Battery
(User-Replaceable)
Carefully read the following information.
 Caution
 ·  Do not mutilate, puncture, or dispose of batteries in fire or water. A battery can burst or
explode, releasing hazardous chemicals. A rechargeable battery must be recycled or
disposed of properly.
 ·  When discarding a battery, contact the local waste disposal provider regarding local
restrictions on the disposal or recycling of batteries.
 ·  To avoid risk of fire, burns, or damage to the battery, do not allow a metal object to touch the
battery contacts.
 ·  The battery is suitable for use only with compatible OmniBook models.
 ·  Do not disassemble. There are no serviceable parts inside.
 ·  Handle a damaged or leaking battery with extreme care. If you come in contact with the
electrolyte, wash the exposed area with soap and water. If it contacts the eye, flush the eye
with water for 15 minutes and seek medical attention.
 ·  Do not expose the batteries to high storage temperatures (above 60 °C, 140 °F).
Required Equipment
 · None.
Removal Procedure
 1. Unplug the AC adapter, if present.
 2. Turn the notebook bottom side up.
 3. Push the blue latch in the direction of the arrow (to your left) and lift out the battery.
 
 Figure 2-1. Removing the Battery
Reassembly Notes
 · Snap the battery back into place.
 · Charge the battery by connecting the AC adapter to the OmniBook. 
						

							2-4 Removal and Replacement HP OmniBook XE2
Removing a RAM Board
(User-Replaceable)
The OmniBook XE2 has 64 MB of RAM on the motherboard and has one RAM slot for installing
additional RAM.
 Table 2-4. RAM Board Replacement Part Numbers
DescriptionProduct
Number
RAM board, 32-MB SDRAM F1456A
RAM board, 64-MB SDRAM F1457A
RAM board, 128-MB SDRAM F1622A
The OmniBook’s computer chips are extremely static-sensitive. Static electricity can permanently
damage computer chips. Carefully read the following information.
 Caution
  Handle the RAM module only by its edges. Otherwise, you may damage the module due to
electrostatic discharge. Static electricity can permanently damage computer chips. It is therefore
important to discharge the static electricity from your body before installing the memory module.
Discharge your body’s electricity by touching the metal shielding around the connectors on the
rear of the OmniBook computer.
Required Equipment
 · Small Phillips screwdriver.
Removal Procedure
 1. Unplug the AC adapter, if present, and remove the battery.
 2. Remove the RAM cover located on the bottom of the OmniBook using a Phillips screwdriver.
 
 Figure 2-2. Removing the RAM Module Cover 
						

							HP OmniBook XE2 Removal and Replacement 2-5
 3. Release the two latches at the sides of the RAM module by pushing them gently outward, away
from the sides of the module. The free edge of the module pops up.
 4. Pull the module out of the connector. Handle it only by the edges.
 
 Figure 2-3. Releasing the RAM Module Latches
Reassembly Notes
 · Insert the RAM board into the connector at about a 30° angle until it is fully inserted. Then press
down at both sides until both latches snap closed. 
						

							2-6 Removal and Replacement HP OmniBook XE2
Removing the Hard Disk Drive
(User-Replaceable)
 Table 2-5. Hard Disk Drive Replacement Part Number
DescriptionPart NumberExchange
Part Number
Drive, hard disk (6.0GB) F1753-60975 F1753-69075
Required Equipment
 · Small Phillips screwdriver.
Removal Procedure
 1. Unplug the AC adapter, if present, and remove the battery.
 2. Turn the notebook bottom side up.
 3. Use a Phillips screwdriver to remove the hard disk drive locking screw.
 4. Slide and hold the hard disk drive latch. This releases the hard disk drive.
 5. Slide the hard disk drive to the left, then lift it out.
 
 
 Figure 2-4. Removing the Hard Disk Drive
 6. If you are installing a new hard drive that does not have a cover, you can remove the cover parts
from the old hard drive:
 · Remove the six screws from the case, carfully pull back the case prong, and lift out the drive.
Reassembly Notes
 
Caution
 
Do not cover the vent hole in the top surface of the hard drive. If you cover the hole, the hard
drive could fail prematurely.
 · Create a Hibernate partition on the drive before loading any software. See the instructions
included with the drive or go to the OmniBook website at www.hp.com/omnibook.
 · Create a partition the size of the default option. 
						

							HP OmniBook XE2 Removal and Replacement 2-7
Replacing Small Parts
(User-Replaceable)
The following small parts are user-replaceable.
 Table 2-6. Replacing Small Parts (User-Replaceable)
PartReplacement Procedure
FeetInsert a small flat-blade screwdriver or pointed knife under the foot and pry it loose.
To replace, firmly press the adhesive side of the foot into the recess.
RAM Module CoverOn the bottom of the unit, remove the screw from the RAM module cover and remove
the cover (see page 2-4). 
						

							2-8 Removal and Replacement HP OmniBook XE2
Removing the Fan
(HP Authorized Service Providers Only)
Required Equipment
 · Small Phillips screwdriver.
Removal Procedure
 1. Unplug the AC adapter, if present, and remove the battery.
 2. Turn the computer bottom side up.
 3. Using a Phillips screwdriver, remove the screw holding the fan.
 4. Slide the fan assembly forward, and lift it out by the rear edge.
 5. Carefully unplug the cable connector. 
						

							HP OmniBook XE2 Removal and Replacement 2-9
Removing the Keyboard
(HP Authorized Service Providers Only)
Required Equipment
 · Small Phillips screwdriver.
 · Plastic knife or small flat-blade screwdriver.
Removal Procedure
 1. Unplug the AC adapter, if present, and remove the battery.
 2. Use a plastic knife or small flat-blade screwdriver to gently pry up the right side of the keyboard
cover. Remove the keyboard cover by pulling it to your right.
 Caution
  If you use a screwdriver to remove the keyboard cover, avoid scratching the plastic.
 3. Use a Phillips screwdriver to remove the three screws.
 
 
 Figure 2-5. Removing the Keyboard Cover and Screws
 4. Lift up the edge of the keyboard that is closest to the display until it forms a 30° angle to the base,
then gently pull it out toward the rear.
 5. Disconnect the flex cable from the base by grasping both sides of the cable and gently pulling up. 
						

							2-10 Removal and Replacement HP OmniBook XE2
 Figure 2-6. Installing the Keyboard
Reassembly Notes
 · Lay the keyboard bottom side up on the top case, forward of its normal position, and attach the
flex cable to the base. Be sure that the cable is folded neatly beneath the keyboard.