HP omnibook 4000 Service Manual
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31
Upper Case, Sound Board (PCB Assy PK-688/PK-AUD),
and PCA Display Connect PK-LSP
(HP Authorized Support Providers Only)
and PCA Display Connect PK-LSP
(HP Authorized Support Providers Only)
Required Equipment:
•
Phillips Screwdriver
Components to remove prior Upper Case, Sound Board (PCB Assy PK-688/PK-
AUD), and PCA Display Connect PK-LSP:
1. HDD, FDD, and Battery
2. Icon Assembly and Display Module
3. Palm Rest Assembly
4. Keyboard Assembly
5. Power Board (optional)
AUD), and PCA Display Connect PK-LSP:
1. HDD, FDD, and Battery
2. Icon Assembly and Display Module
3. Palm Rest Assembly
4. Keyboard Assembly
5. Power Board (optional)
Removal Procedure:
1. Remove Battery, Floppy Disk Drive, and Hard Disk Drive.
2. Follow the Icon Assembly and Display Module Removal Procedure to remove
1. Remove Battery, Floppy Disk Drive, and Hard Disk Drive.
2. Follow the Icon Assembly and Display Module Removal Procedure to remove
these components.
3. Follow the Keyboard Removal Procedure. Note, although the Sound Board
cannot be completely removed at this point, it is strategic to disconnect the
rightmost harness cable at this step (see Figure 9).
rightmost harness cable at this step (see Figure 9).
4. Additional maneuvering space may be gained by removing the Power Board,
however, it is not necessary to do so.
5. Remove the ISOB M2x6L Screw located on the left side of the Upper Case. See
Figure 10 for location of this component.
6. Remove the Upper Case by gently prying up at the seam between the Upper
Case and Lower Case. The Upper Case will then snap off.
7. At this point, the Upper Case will still have the Sound Board and the Microphone
Assembly attached. The Microphone can simply be disconnected from the
Sound Board if necessary. The Sound Board may be affixed with a drop of glue
to the Upper Case where the Audio Ports meet the plastic. The Audio Ports can
be gently pried from the Upper Case plastic if necessary (see Figure 10). Note,
that the Sound Board and Audio Ports are a single assembly.
Sound Board if necessary. The Sound Board may be affixed with a drop of glue
to the Upper Case where the Audio Ports meet the plastic. The Audio Ports can
be gently pried from the Upper Case plastic if necessary (see Figure 10). Note,
that the Sound Board and Audio Ports are a single assembly.
8. Next, remove the three (3) ISOB M2.6x5L screws from the LSP-M/B Shielding
Plate and PCA Display Connect PK-LSP. See Figure 10 for locations of these
components.
components.
9. The LSP-M/B Shielding Plate can now be removed.
10. Remove the PCA Display Connect PK-LSP by gently rocking back and forth.
10. Remove the PCA Display Connect PK-LSP by gently rocking back and forth.
Replacement Procedure:
1. Simply reverse the above Removal Procedure.
2. Take note that to reinstall the Audio Ports onto the plastic of the Upper Case
1. Simply reverse the above Removal Procedure.
2. Take note that to reinstall the Audio Ports onto the plastic of the Upper Case
does not require a drop of glue. The one screw is sufficient.
3. The LSP-M/B Shielding Plate fits between the plastic of the Lower Case and the
strip of shielding affixed along the audio ports holes in the plastic of the Lower
Case.
Case.