HP Omnibook Xt6050 Service Manual

HP Omnibook XT6050, XT/VT6200 Removal and Replacement 2-19
Removing the Display Assembly
(HP Authorized Service Providers Only)
Required Equipment
 
• Small Phillips screwdriver.
Removal Procedure
 1.
 Unplug the AC adapter, if present, and remove the battery and any secondary battery module.
 2.
 Remove the power button panel (page 2-11).
 3.
 Remove all four retaining screws from the back of the computer (two near the PS/2 port, and two
near the AC adapter jack).
 4.
 On the bottom of the notebook,...

2-20 Removal and Replacement HP Omnibook XT6050, XT/VT6200
 
     
  Figure 2-14. Removing the Display
Reassembly Notes
  Important
 
The label on the display cable indicates the display type.
 
• Before installing any screws, make sure the center hinge cover is in place and fits over the tab in
the bottom case.
Screws,
M2.5×6mm (5)
Screw, M2.5×5mm
Screws, M2.5×4 mm (2)
Screw, M2.5×17mm
Screws, M2.5×8mm (2) 

HP Omnibook XT6050, XT/VT6200 Removal and Replacement 2-21
Removing the Top Case
(HP Authorized Service Providers Only)
Required Equipment
 
• Small Phillips screwdriver.
Removal Procedure
 1.
 Unplug the AC adapter, if present, and remove the battery and any secondary battery module.
 2.
 Remove these additional assemblies:
 
• Plug-in module (page 2-5).
 
• Hard disk drive (page 2-7).
 
• Power button panel (page 2-9).
 
• Keyboard (page 2-13).
 
• Heatsink (page 2-15).
 
• Display assembly (page...

2-22 Removal and Replacement HP Omnibook XT6050, XT/VT6200
 
     
  Figure 2-15. Removing the Top Case
Reassembly Notes
 
• To reinstall the sound/IR panel, insert the tabs on the ends of the panel into the slots in the bottom
case.
 
• When reinstalling the right corner cover, first insert the tab at the back end of the cover into the
case, then slide the plug-in module latch forward and snap the cover over the latch and into place.
 
• 
Wireless models only: If you are replacing the rear antenna PCA,...

HP Omnibook XT6050, XT/VT6200 Removal and Replacement 2-23
Removing the Motherboard or Bottom Case
(HP Authorized Service Providers Only)
Required Equipment
 
• Small Phillips screwdriver.
 
• Small flat-blade screwdriver.
Removal Procedure
Note: Before Replacing the Motherboard
If possible, record the computer’s electronic serial number and service ID before you replace the
motherboard. You will then store this information in the EEPROM on the new motherboard using the
Service Utility floppy disk.
1....

2-24 Removal and Replacement HP Omnibook XT6050, XT/VT6200
  Caution: Wireless Models
 
Be careful when removing and attaching antenna cables. Damage to cables or connectors can
degrade performance.
 5.
 
Wireless models only: Disconnect the front antenna PCA flex cable from the motherboard.
 6.
 
Wireless models only: Remove the mini-PCI cover and unplug the two antenna cables from mini-
PCI card #1.
 7.
 Lift the motherboard out of the bottom case.
 
    
  Figure 2-16. Removing the Motherboard
 8....

HP Omnibook XT6050, XT/VT6200 Removal and Replacement 2-25
Reassembly Notes
 
• Reinstall the sound/IR panel before reinstalling the motherboard.
 
• If you need to install or replace the docking doors or PCMCIA doors, see the figures below.
Wireless Models Only
 
• Before installing the motherboard, make sure the round coaxial cable from the front antenna PCA
is held in place by the clips in the bottom case.
 
• Reconnect the front antenna PCA flex cable before reinstalling the top case. Make sure it...

2-26 Removal and Replacement HP Omnibook XT6050, XT/VT6200
Replacing the Motherboard
Disassembly Procedure
 1.
 If a mini-PCI panel is attached, disconnect the LAN/modem cables from the mini-PCI card or
motherboard and remove the mini-PCI panel.
 2.
 If mini-PCI card #1 is present, remove it: release the latches at the sides of the card, so that its free
edge pops up, then carefully pull the card out of its connector.
 3.
 If mini-PCI card #2 is present, remove it: release the latches at the sides of the...

HP Omnibook XT6050, XT/VT6200 Removal and Replacement 2-27
Reassembly Procedure
  Note: Reprogramming the BIOS IC
 
A new BIOS IC contains only enough basic programming to enable the notebook to boot. After
installing a new motherboard, you must reprogram the BIOS IC, preferably with the latest BIOS—
see page 2-29.
 1.
 Transfer the following components from the old motherboard onto the new motherboard:
 
• SDRAM module
 
• speaker assembly
 
• display interface PCA
 
• volume PCA
 
• CPU module
 
•...

2-28 Removal and Replacement HP Omnibook XT6050, XT/VT6200
Replacing the Bottom Case
Installation Procedure
 1.
 Transfer the SDRAM cover and sound/IR panel from the old bottom case to the new bottom case.
 2.
 Install a new Microsoft Product ID label.
 3.
 Transfer the old serial number label and install a new overlay, or create a new serial number label
using the steps below.
 4.
 Follow the “Reassembly Notes” on page 2-24.
Installing a New Serial Number Label
Download the latest version of the serial...