HP Omnibook 900 Service Manual

HP OmniBook 900 Removal and Replacement 2-1
2 
Removal and Replacement
This chapter tells you how to remove and replace the following components and assemblies. The ones
marked by 
· are user-replaceable.
 Table 2-1. Removal Cross-Reference
 
· Battery (page 2-3)
 Bezel, display (page 2-27)
· Bumper, display (page 2-9)
 Cable, display flex (page 2-27)
 Cable, display power (page 2-27)
· Cap, pointing stick (page 2-9)
 Case, bottom (page 2-20)
 Case, display (page 2-27)
· Case, HDD kit (page 2-6)
 Case,...

2-2 Removal and Replacement HP OmniBook 900
  Notes
 
Reassembly steps are the reverse of the removal steps. Reassembly notes are included at the
end of each section below.
 
Symbols like this throughout this chapter show approximate full-size screw outlines. You
can use them to verify the sizes of screws before you install them. Installing a wrong-size screw
can damage the unit. (The symbol at the left represents an M2.5×5mm T-head screw.)
 Table 2-2. Required Equipment
 · Small Phillips screwdriver...

HP OmniBook 900 Removal and Replacement 2-3
Removing the Battery
(User-Replaceable)
Required Equipment
 · None.
Removal Procedure
 1. Unplug the ac adapter, if present.
 2. Slide the battery’s front panel to the right.
 3. Pull the battery out of the bay.
 
 Figure 2-1. Removing the Battery 

2-4 Removal and Replacement HP OmniBook 900
Reassembly Notes
 · If you are installing a new battery, first snap the correct panel onto the front of the battery. For a
12-inch display, use the flat battery panel—for a 13-inch display, use the curved battery panel. To
remove a panel, slide it open, then twist the upper edge of the panel off the battery.
 
 
  Figure 2-2. Installing a Battery Panel
 · Make sure the front panel of the battery is open before inserting the battery. 

HP OmniBook 900 Removal and Replacement 2-5
Removing a RAM Board
(User-Replaceable)
 Table 2-4. RAM Board Replacement Part Numbers
DescriptionPart NumberExchangeOmniBook
Part Number900B900†
RAM board, 32MB PC100 SODIMM 1818-7950
··
RAM board, 64MB PC100 SODIMM 1818-7951 F1660-69103
··
RAM board, 128MB PC100 SODIMM 1818-7952 F1660-69104
··
  Caution
 
Handle the RAM board only by its edges and provide proper grounding. Otherwise, you may
damage the board due to electrostatic discharge.
Required Equipment...

2-6 Removal and Replacement HP OmniBook 900
 
 
                          
  Figure 2-3. Removing a RAM Board
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.
 · Fold the keyboard back into place. Slip its front tabs into the slots, then snap the back edge into
place.
 · Push the keyboard toward the back as you tighten the two screws. This helps engage the tab at the
back-center of...

HP OmniBook 900 Removal and Replacement 2-7
Removal Procedure
 1. Unplug the ac adapter, if present, and remove the battery.
 2. Turn the unit bottom side up and remove the hard drive screw from the bottom case.
 3. Open the hard drive door, then pull out the hard drive by its plastic tab.
 
 
 Figure 2-4. Removing the Hard Disk Drive
 4. 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 two screws from the case, then...

2-8 Removal and Replacement HP OmniBook 900
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.
 · The small plastic tabs on the connector face the top of the drive, and the metal shield fits behind
the tabs.
  Important
 ·  If you are installing a new hard drive, create a Hibernate partition on the drive before loading
any software—see the steps below.
 
Note
 
For an OmniBook 900 with a 12-inch...

HP OmniBook 900 Removal and Replacement 2-9
Replacing Small Parts
(User-Replaceable)
The following small parts are user-replaceable.
 Table 2-6. Replacing Small Parts (User-Replaceable)
PartReplacement Procedure
Battery panelRemove the battery, then twist the upper edge of the panel off the battery.
Bumper, display
(upper)Insert a small flat-blade screwdriver under the bumper and pry it loose. To replace,
firmly press the adhesive side of the bumper into the recess.
Cap, pointing stickPull the cap off...

2-10 Removal and Replacement HP OmniBook 900
Removing the LCD Module
(HP Authorized Service Providers Only)
  Exchange Information
 
W hen returning a bad LCD module to HP, describe the symptoms on a piece of paper and attach
it to the part—do not use tape.
  Table 2-7. Display Component Compatibility
LCD Type*12 IBM12 Mitsubishi13 LG13 Unipac
OmniBook Model900†/900B900†/900B900B900B
Bezel, displayF1711-60915 F1770-60906
Cable, LCD flexF1711-60918 F1769-60913 F1770-60923 F1770-60910
Cable,...