HP Omnibook Xe3 Ge Service Manual

HP Omnibook XE3 (Technology Codes GE and GD) Product Information 1-15
Internal Design
The motherboard PCA is the central component of the notebook’s design, and plays a role in virtually
all system functions. The CPU module and most other subsystems connect to the motherboard.
The following figure shows the connections among the notebook’s replaceable electronic modules. In
addition, the table on page 1-16 lists the roles that the replaceable modules play in each of the
notebook’s functional subsystems....

1-16 Product Information HP Omnibook XE3 (Technology Codes GE and GD)
 Table 1-7. Functional Structure
Function Components Used Component Roles
BootupCPU module
Motherboard
Floppy disk module
Hard disk driveMain processor.
Primary system circuitry.
First source of disk-based startup code.
Second source of disk-based startup code.
ProcessorCPU module
MotherboardMain processor, numeric data processor, L1 and L2 cache.
Primary system circuitry.
MemoryMotherboard
SDRAM module
Video PCANo onboard RAM....

HP Omnibook XE3 (Technology Codes GE and GD) Removal and Replacement 2-1
2 
Removal and Replacement
This chapter shows how to remove and replace the notebook’s components and assemblies. The items
marked by 
• in the following table are user-replaceable.
  Table 2-1. Removal Cross-Reference
 
 
• Battery (page 2-4).
Carrier, hard disk drive (page 2-15).
Case, bottom (page 2-35).
Case, top (page 2-22).
Cover, keyboard (page 2-10).
 
• Cover, mini-PCI (page 2-9).
 
• Cover, SDRAM (page 2-9).
 
• Covers,...

2-2 Removal and Replacement HP Omnibook XE3 (Technology Codes GE and GD)
Disassembly Flowchart
The following diagram shows the general “path” you will use in disassembling the notebook to access
any particular component.
 Figure 2-1. Disassembly Flow
Start
Battery, AC adapter,
SDRAM modules, mini-PCI PCA
Keyboard cover
Keyboard
Hard disk drive assembly
Display assembly
Top case assembly
Hinge saddle set
 CD/DVD drive assembly
 Video PCA
 Floppy disk drive assembly
 Headphone PCA
Heatsink assembly...

HP Omnibook XE3 (Technology Codes GE and GD) Removal and Replacement 2-3
 Table 2-2. Required Equipment
 
• #0 Phillips screwdriver, preferably magnetized.
 
• Small flat-blade screwdriver.
 
• 5 mm hexagonal socket screwdriver.
 
• Electrostatic device (wristband and pad).
 Table 2-3. Recommended Screw Torques
Screw Thread SizeTorque (cm-kgf)Torque (in-lbf)
M2.5 (2–11 mm long) 3.0 – 3.5 2.6 – 3.0
M2.5 (12–19 mm long) 2.5 – 3.0 2.2 – 2.6
M3 3.0 – 3.5 2.6 – 3.0
NOTES 

2-4 Removal and Replacement HP Omnibook XE3 (Technology Codes GE and GD)
Removing the Battery
(User-Replaceable)
Required Equipment
 
• None.
Removal Procedure
 
• Slide the battery’s release latch, then lift the battery out of its compartment.
 Figure 2-2. Removing the Battery
Reassembly Notes
 
• Insert the front (rounded) end of the battery into the battery compartment, and lower the back end
in until it clicks into place. 

HP Omnibook XE3 (Technology Codes GE and GD) Removal and Replacement 2-5
Removing an SDRAM Module
(User-Replaceable)
The notebook has no SDRAM on its motherboard, but has slots for two SDRAM modules.
  Table 2-4. SDRAM Module Replacement Part Numbers
DescriptionPart NumberExchange Part Number
Module, SDRAM, 128 MB, PC133 SODIMM 1818-8504
Module, SDRAM, 256 MB, PC133 SODIMM 1818-8635
  Caution
 
Provide proper grounding and handle the SDRAM module only by its edges, or you could damage
the module through...

2-6 Removal and Replacement HP Omnibook XE3 (Technology Codes GE and GD)
 3.
 Press outward to release the latches at the sides of the SDRAM module, so the free edge of the
module pops up.
 Figure 2-4. Removing an SDRAM Module
 4.
 Pull the module out of the connector.
Reassembly Notes
 
• Gently press the SDRAM module into the connector at an angle of about 30°, until it is fully
inserted. Then press down on both sides of the module until the latches snap closed. 

HP Omnibook XE3 (Technology Codes GE and GD) Removal and Replacement 2-7
Removing the Mini-PCI PCA (selected models)
(User-Replaceable)
Certain notebook models include a mini-PCI PCA that contains either a modem or modem/LAN.
 Table 2-5. Mini-PCI PCA Replacement Part Numbers
DescriptionPart NumberExchange Part Number
PCA, mini-PCI (LAN/modem) F2409-60907
PCA, mini-PCI (LAN/modem) Malaysia F2409-60908
PCA, mini-PCI (modem) F2409-60909
PCA, mini-PCI (modem) Malaysia F2409-60910
  Caution
 
Provide proper...

2-8 Removal and Replacement HP Omnibook XE3 (Technology Codes GE and GD)
 
 Figure 2-5. Removing the Mini-PCI PCA
Reassembly Notes
 
• Reattach the cable (modem models only) or cables (modem/LAN models only) to the PCA, and
tuck them into the compartment.
 
• Gently press the PCA into the connector at an angle of about 30°, until it is fully inserted. Then
press down on both sides of the PCA until the latches snap closed.
 
• Make sure sticky pads on the underside of the PCA are intact. Replace if needed.