HP Omnibook 800csct Service Manual

53Hard Disk Drive
(End User Replaceable)
Required Equipment
· Torx #6 screwdriver
Removal Procedure
1. Exit all applications, including Windows.
2. Turn the OmniBook off and remove the battery and ac adapter.
3. Use a Torx-T6 screwdriver to remove the two keyboard screws and the three hard drive
screws (the exact location of the hard drive screws vary with the manufacturer of hard drive).
See Figure 19.
 
 
 
 
 
 
4. Turn the OmniBook over and open the cover.  Grasp the top edge of the Keyboard and...

54 
 
5. Disengage the hard drive connectors by grasping the left flap of the plastic insulator and
gently pulling straight to the right as shown in Figure 21.
CAUTION:To avoid damage to the hard drive connector, do not pull the hard drive
insulator up or at an angle – only straight to the right.
 
 
6. Lift up on the insulator sheet and remove the hard drive.  See Figure 22.  The insulator sheet
stays in place.
CAUTION:Handle the hard drive only by its edges to avoid damage from electrostatic...

55Replacement Procedure
1. If the new hard drive is from a different manufacturer than the old one, it may have screws in
different positions.  Determine which mounting holes in the bottom case are needed; then, if
necessary, push out the rubber screw-hole covers from the inside of the bottom case.  (From
the outside of the computer, insert the rubber covers into the holes that are not needed.)
2. If the new hard drive has screws in different positions from the old one, the insulator sheet
will also need...

56CAUTION:Do not force the drive into the connector or the pins may bend and cause
damage to the hard drive.
4. Holding the Keyboard in place, so as not to damage the flex cables, turn the OmniBook over
and re-insert the three hard drive screws removed in step one.  Note, it may be necessary to
support the hard drive with one hand in order for the screws to engage.
CAUTION:Do not over-tighten the hard drive screws—screw just until you feel
resistance (1.7 in.-lbs.).  If the screws are over-tightened, the...

576. Replace the two Keyboard Screws and the remainder of the components and reboot.
Hard Disk Drive Breather Holes
Hard drives used in the OmniBook 800 have a breather hole located on the metal side of the
drive (see Figure 26 for location of breather holes for both IBMâ
 and Toshiba).  The hole is
necessary to provide pressure equilibrium.  The breather holes must not be obstructed.  Any
labels covering this breather hole must be removed to prevent data loss on the hard drive.
Just below the metal...

58Mouse
(End User Replaceable)
Required Equipment
· none
Removal Procedure
1. Press the mouse-eject button to eject the mouse.
2. Pull the mouse firmly away from the OmniBook (see Figure 27).  The entire mouse assembly
will pull free.
Replacement Procedure
1. Place the end of the mouse “stick” into the mouse housing.
2. Slide the mouse into the slot and firmly push the mouse until it is completely flush with the
side of the OmniBook.Figure 27 - Removing the Mouse 

59Small Parts
(End User Replaceable)
The following small parts are all end user replaceable.
Battery Latch
Once the battery is removed (refer to the Battery Removal Procedure on page 50), the battery
latches will slide out of the bottom case.  To replace, align the sides of the latches with the
grooves in the slots.  Press firmly into place.
I/O Door
To remove the I/O door, open it fully.  Flex the middle of the door until the side pins clear the
holes in the back case.  Reverse to replace.
Memory Cover...

60Keyboard
(HP Authorized Service Providers Only)
Required Equipment
· Torx #6 screwdriver
Removal Procedure
1. Exit all applications, including Windows.
2. Turn the OmniBook off and remove the battery and ac adapter.
3. Remove the two keyboard screws from the bottom case.  See Figure 28.
4. Remove the keyboard by inserting your fingertips between the top row of keys and the case
and then lifting. Then fold the keyboard gently forward so that it lies upside down on the
table.  Do not pick up the computer...

615. Lastly, remove the keyboard flex cables from the zero insertion force slots.  If available, use
the provided Keyboard Flex Cable Removal Tool (part number 5182-7482) to assist in
“opening”  the zero insertion force slots.  Otherwise, a pick may be used to gently lift up the
top of the slots.  See Figure 30.
CAUTION:To avoid damage to the solder joints, do not open the zero force insertion
connectors by prying against the case of the OmniBook.
Replacement Procedure
1. To replace, reverse the Removal...

62Display
(HP Authorized Service Providers Only)
Required Equipment
· Torx #6 screwdriver
Removal Procedure
1. Exit all applications, including Windows.
2. Turn the OmniBook off and remove the battery and ac adapter.
3. Follow the Hard Disk Drive Removal Procedure on page 53 and the Keyboard Removal
Procedure on page 60 to remove these components.
4. Remove the three rubber feet and six screws from the bottom case.  See Figure 32.
5. Remove the Keyboard Support Plate Screws.  Refer to Figure 33 for...