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HP Omnibook Xt1500 Service Manual

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Page 51

Technology Code ID)  Removal and Replacement  2-29 
  
 
 
Figure 2-21. Removing the Top Case 
Reassembly Notes 
• Make sure the touch pad cable, and CD/DVD player PCA cable, and volume PCA cable (if 
present) are securely connected. 
• If present, reinsert the wireless cables into their slot in the top case. 
• Make sure the tabs along the edges of the case snap shut. 
Screws,  
M2×4mm (2) 
Screws, 
M2.5x6mm  (2) Screws, 
M2×4mm (3) 
Screws, 
M2×4mm (3) 
Screws, 
M2×4mm (5)  

Page 52

2-30  Removal and Replacement  Technology Code ID) 
Removing the Hinge Saddles 
(HP Authorized Service Providers Only) 
Required Equipment 
• #0 Phillips screwdriver. 
Removal Procedure 
1.  Unplug the AC adapter, if present, and remove the battery. 
2.  Remove these additional assemblies: 
• Keyboard cover (page 2-9). 
• Keyboard (page 2-11). 
• Display assembly (page 2-18). 
• Top case (page 2-27). 
3.  Remove the retaining screws from the right hinge saddle, and lift the hinge saddle out of the...

Page 53

Technology Code ID)  Removal and Replacement  2-31 
  
 
 
Figure 2-22. Removing the Hinge Saddles 
Reassembly Notes 
• Make sure the posts on the underside of the hinge saddles line up with the openings in the bottom 
case, and that the holes in the front ends of the saddle fit over the alignment posts in the bottom 
case.  
Screw, M2×4mm 
Screws, 
M2.5x6mm (3) Screw, 
M2.5x6mm  
Screw, 
M2.5x8mm  

Page 54

2-32  Removal and Replacement  Technology Code ID) 
Removing the Motherboard or Bottom Case 
(HP Authorized Service Providers Only) 
Required Equipment 
• #0 Phillips screwdriver. 
• .5 mm hex driver 
When Installing a New Motherboard 
Before replacing the motherboard, you must (if possible) electronically store the motherboard’s serial 
number and service ID for transfer to the new motherboard. 
1.  Exit Windows and boot to a DOS prompt. 
2.  Run ESN.EXE from one of these sources: 
• On a factory...

Page 55

Technology Code ID)  Removal and Replacement  2-33 
5.  Remove both retaining screws from the motherboard. 
6.  Remove the four standoffs located near the CPU module. 
7.  Disconnect the audio PCA and remove it from the motherboard. 
8.  Lift the front edge of the motherboard slightly, then carefully lift the motherboard forward and out 
of the bottom case. 
  
 
 
Figure 2-23. Removing the Motherboard 
Reassembly Procedure 
• When reinstalling the motherboard, see “Reinstalling the Motherboard” on page...

Page 56

2-34  Removal and Replacement  Technology Code ID) 
Reinstalling the Motherboard 
Reassembly Procedure 
1.  Insert the I/O connectors through their openings in the bottom case, then lower the motherboard 
into place. 
2.  Make sure the PC card eject button fits into its slot in the bottom case. 
3.  Make sure the alignment posts in the bottom case—near the CPU module and PC card guide—fit 
through the corresponding openings in the motherboard. 
When Installing a New Motherboard 
After installing a new...

Page 57

Technology Code ID)  Removal and Replacement  2-35 
Replacing the Bottom Case 
Installation Procedure 
1.  Install a new Microsoft Product ID label. 
2.  Transfer the old serial number label and install a new overlay, or create a new serial number label 
using the steps on the following page. 
3.  If you need to install or replace the docking doors or PCMCIA doors, refer to the figures below. 
  
 
 
Figure 2-24. Installing the Docking Doors 
  
 
 
Figure 2-25. Installing the PCMCIA Doors  

Page 58

2-36  Removal and Replacement  Technology Code ID) 
Installing a New Serial Number Label 
Download the latest version of the serial number label template (Microsoft Word format) from the 
Partnership Web site (see page vi) under Support/Service in Technical Support Information, or from 
http://www.mcd.hp.com. Store it with other Word templates on a PC connected to a laser printer. The 
latest version includes fields for warranty period and manufacturing location. 
1.  Open a new document based on the...

Page 59

Technology Code ID)  Removal and Replacement  2-37 
Removing Notebook Components 
(HP Authorized Service Providers Only) 
Required Equipment 
• #0 Phillips screwdriver. 
• Small flat-blade screwdriver. 
Removal Procedure 
1.  Unplug the AC adapter, if present, and remove the battery.  
2.  Remove the assemblies and follow the additional steps given in the table below. 
Table 2-5. Removing Notebook Components 
Component Removal Procedure Additional Steps 
Antenna, wireless See page 2-20. 
 
Bezel, display...

Page 60

2-38  Removal and Replacement  Technology Code ID) 
Component Removal Procedure Additional Steps 
Doors, PCMCIA Plug-in module (page 2-5). 
Hard disk drive (page 2-6). 
Keyboard cover 
(page 2-9). 
Keyboard (page 2-11). 
SDRAM modules  
(page 2-13). 
Mini-PCI card (page 2-16). 
Display assembly 
(page 2-18). 
Fan and heatsink 
(page 2-22). 
CPU module (page 2-25). 
Top case (page 2-27). 
Hinge saddles 
(page 2-30). 
Motherboard (page 2-32). See Figure 2-25 on page 2-35. 
Fan See page 2-22. 
 
Guide, hard...
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