HP Dv4 1140go - Pavilion Entertainment - Core 2 Duo... User manual

HP Pavilion dv4 Entertainment PC
Display Replacement Guide

© Copyright 2009 Hewlett-Packard
Development Company, L.P.
Athlon, Sempron, and Turion are trademarks
of Advanced Micro Devices, Inc. Bluetooth is
a trademark owned by its proprietor and used
by Hewlett-Packard Company under license.
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trademarks of Intel Corporation in the U.S.
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and Windows Vista are U.S. registered
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The information contained herein is subject
to change without notice. The only
warranties for HP products and services are
set forth in the express warranty statements
accompanying such products and services.
Nothing herein should be construed as
constituting an additional warranty. HP shall
not be liable for technical or editorial errors
or omissions contained herein.
First Edition: September 2009
Document Part Number: 592771-001

Safety warning notice
WARNING! To reduce the possibility of heat-related injuries or of overheating the computer, do not
place the computer directly on your lap or obstruct the computer air vents. Use the computer only on a
hard, flat surface. Do not allow another hard surface, such as an adjoining optional printer, or a soft
surface, such as pillows or rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact
the skin or a soft surface, such as pillows or rugs or clothing, during operation. The computer and the
AC adapter comply with the user-accessible surface temperature limits defined by the International
Standard for Safety of Information Technology Equipment (IEC 60950).
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Table of contents
1 Removal and replacement procedures
Preliminary replacement requirements ................................................................................................. 2
Tools required ...................................................................................................................... 2
Service considerations ......................................................................................................... 2
Plastic parts ......................................................................................................... 2
Cables and connectors ....................................................................................... 3
Drive handling ..................................................................................................... 3
Grounding guidelines ........................................................................................................... 4
Electrostatic discharge damage .......................................................................... 4
Component replacement procedures ................................................................................................... 5
Display assembly ................................................................................................................. 5
Standard display assembly ................................................................................................ 15
Flush Glass display assembly ........................................................................................... 18
2 Recycling
Display ................................................................................................................................................ 23
Index ................................................................................................................................................................... 29
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1 Removal and replacement procedures
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Preliminary replacement requirements
Tools required
You will need the following tools to complete the removal and replacement procedures:
●Flat-bladed screwdriver
●Magnetic screwdriver
●Phillips P0 and P1 screwdrivers
Service considerations
The following sections include some of the considerations that you must keep in mind during
disassembly and assembly procedures.
NOTE: As you remove each subassembly from the computer, place the subassembly (and all
accompanying screws) away from the work area to prevent damage.
Plastic parts
Using excessive force during disassembly and reassembly can damage plastic parts. Use care when
handling the plastic parts. Apply pressure only at the points designated in the maintenance instructions.
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Cables and connectors
CAUTION: When servicing the computer, be sure that cables are placed in their proper locations
during the reassembly process. Improper cable placement can damage the computer.
Cables must be handled with extreme care to avoid damage. Apply only the tension required to unseat
or seat the cables during removal and insertion. Handle cables by the connector whenever possible. In
all cases, avoid bending, twisting, or tearing cables. Be sure that cables are routed in such a way that
they cannot be caught or snagged by parts being removed or replaced. Handle flex cables with extreme
care; these cables tear easily.
Drive handling
CAUTION: Drives are fragile components that must be handled with care. To prevent damage to the
computer, damage to a drive, or loss of information, observe these precautions:
Before removing or inserting a hard drive, shut down the computer. If you are unsure whether the
computer is off or in Hibernation, turn the computer on, and then shut it down through the operating
system.
Before handling a drive, be sure that you are discharged of static electricity. While handling a drive,
avoid touching the connector.
Before removing a diskette drive or optical drive, be sure that a diskette or disc is not in the drive and
be sure that the optical drive tray is closed.
Handle drives on surfaces covered with at least one inch of shock-proof foam.
Avoid dropping drives from any height onto any surface.
After removing a hard drive, an optical drive, or a diskette drive, place it in a static-proof bag.
Avoid exposing a hard drive to products that have magnetic fields, such as monitors or speakers.
Avoid exposing a drive to temperature extremes or liquids.
If a drive must be mailed, place the drive in a bubble pack mailer or other suitable form of protective
packaging and label the package “FRAGILE.”
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Grounding guidelines
Electrostatic discharge damage
Electronic components are sensitive to electrostatic discharge (ESD). Circuitry design and structure
determine the degree of sensitivity. Networks built into many integrated circuits provide some protection,
but in many cases, ESD contains enough power to alter device parameters or melt silicon junctions.
A discharge of static electricity from a finger or other conductor can destroy static-sensitive devices or
microcircuitry. Even if the spark is neither felt nor heard, damage may have occurred.
An electronic device exposed to ESD may not be affected at all and can work perfectly throughout a
normal cycle. Or the device may function normally for a while, then degrade in the internal layers,
reducing its life expectancy.
CAUTION: To prevent damage to the computer when you are removing or installing internal
components, observe these precautions:
Keep components in their electrostatic-safe containers until you are ready to install them.
Use nonmagnetic tools.
Before touching an electronic component, discharge static electricity by using the guidelines described
in this section.
Avoid touching pins, leads, and circuitry. Handle electronic components as little as possible.
If you remove a component, place it in an electrostatic-safe container.
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Component replacement procedures
Display assembly
Description Spare part number
Display assemblies
●14.1-inch WXGA, Brightview display assembly with a camera/microphone module for
use with standard computer models
486882-001
●14.1-inch WXGA, Brightview display assembly with a camera/microphone module for
use with bronze-colored computer models
496736-001
●14.1-inch WXGA, Brightview LED display assembly with a camera/microphone module
for use with standard computer models
486883-001
●14.1-inch WXGA, Brightview LED display assembly with a camera/microphone module
for use with bronze-colored computer models
496741-001
●14.1-inch WXGA, Brightview Flush Glass display assembly with a camera/microphone
module for use with standard computer models
486872-001
●14.1-inch WXGA, Brightview Flush Glass display assembly with a camera/microphone
module for use with bronze-colored computer models
496732-001
●14.1-inch WXGA, Brightview Flush Glass display assembly with a camera/microphone
module for use in blue-colored computer models
502577-001
Display bezels
●For use only with standard computer models equipped with a camera/microphone
module (includes openings for camera module and microphones)
494978-001
●For use only with standard computer models not equipped with a camera/microphone
module (includes openings for microphones)
486893-001
●For use only with bronze-colored computer models equipped with a camera/
microphone module (includes openings for camera module and microphones)
496743-001
●For use only with bronze-colored computer models not equipped with a camera/
microphone module (includes openings for camera/microphone module and
microphones)
496735-001
Display Hinge Kits
●For use with standard display assemblies 486894-001
●For use with Flush Glass display assemblies 486880-001
Display panels (includes display panel cable)
●14.1-inch, WXGA, BrightView display panel for use in computers with Intel
processors (includes display panel cable)
483261-001
●14.1-inch, WXGA, BrightView LED display panel for use in computers with Intel
processors (includes display panel cable)
483262-001
●14.1-inch, WXGA, BrightView display panel for use in computers with AMD
processors (includes display panel cable)
497182-001
●14.1-inch, WXGA, BrightView LED display panel for use in computers with AMD
processors (includes display panel cable)
497183-001
Display inverter (includes Mylar shield) 486736-001
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Description Spare part number
Wireless Antenna Kits
●For use with standard display assemblies 489068-001
●For use with Flush Glass display assemblies 489067-001
Display enclosures (includes logo light and cables)
●For use with standard computer models with a camera/microphone module 486890-001
●For use with bronze-colored computer models with a camera/microphone module 496734-001
●For use with standard computer models 494967-001
●For use with bronze-colored computer models 496742-001
●For use with standard computer models with Flush Glass display assemblies 486875-001
●For use with bronze-colored computer models with Flush Glass display assemblies 496733-001
●For use in blue-colored computer models 502578-001
Rubber display bezel kits (contains all rubber pieces for the display bezel)
●For use with standard computer models 496729-001
●For use with bronze-colored computer models 486874-001
Miscellaneous display parts
●Hinge trim for use on standard computer models with Flush Glass display assemblies 495629-001
●Hinge trim for use on bronze-colored computer models with Flush Glass display
assemblies
502592-001
●Hinge trim for use on blue-colored computer models 502595-001
●Display trim for use with standard computer models with Flush Glass display
assemblies
486877-001
●Display trim for use with bronze-colored computer models with Flush Glass display
assemblies
502593-001
●Display trim for use with blue-colored computer models 502596-001
●LCD cable for Flush Glass display assemblies 486878-001
●Microphone cable for Flush Glass display assemblies 495631-001
●LED transfer board for standard display assemblies 494977-001
Remove the display assembly:
1. Shut down the computer. If you are unsure whether the computer is off or in Hibernation, turn the
computer on, and then shut it down through the operating system.
2. Disconnect all external devices connected to the computer.
3. Disconnect the power from the computer by first unplugging the power cord from the AC outlet and
then unplugging the AC adapter from the computer.
4. Turn the computer upside down on a flat surface.
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5. Slide the battery release latch (1) to release the battery.
6. Pivot the battery (2) upward and remove it from the computer (3).
7. Position the computer with right side toward you.
8. Slide the swappable bay release latch (1) away from the battery bay.
9. Remove the optical drive (2).
10. If it is necessary to replace the optical drive bracket, position the optical drive with the optical drive
bracket toward you.
11. Remove the two Phillips PM2.0×4.0 screws (1) that secure the optical drive bracket to the optical
drive.
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12. Remove the optical drive bracket (2).
13. Position the computer with the front toward you.
14. Loosen the two Phillips PM2.5×6.0 captive screws (1) that secure the hard drive bay cover to the
computer.
15. Lift the left side of the hard drive bay cover (2), swing it to right, and remove the cover (3). The hard
drive bay cover is included in the Plastics Kit, spare part number 486833-001.
16. Remove the three black Phillips PM2.0×4.0 screws (1) that secure the hard drive to the computer.
17. Use the Mylar tab (2) to slide the hard drive away from the hard drive connector (3).
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18. Remove the hard drive from the hard drive bay (4).
19. If it is necessary to replace the hard drive bracket, remove the four Phillips PM3.0×4.0
screws (1) that secure the hard drive bracket to the hard drive.
20. Lift the bracket (2) straight up to remove it from the hard drive.
21. Disconnect the wireless antenna wires (1) from the from the wireless module.
22. Remove the 2 Phillips PM2.0×4.0 screws (2) securing the WLAN module to the computer.
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23. Remove the WLAN module (3) by pulling it away from the slot at an angle. (The edge of the module
opposite the slot rises away from the computer.)
NOTE: WLAN modules are designed with a notch (4) to prevent incorrect insertion into the WLAN
module slot.
CAUTION: The WWAN module and the WLAN module are not interchangeable.
CAUTION: To prevent an unresponsive system, replace the wireless module only with a wireless
module authorized for use in the computer by the governmental agency that regulates wireless
devices in your country or region. If you replace the module and then receive a warning message,
remove the module to restore computer functionality, and then contact technical support through
Help and Support.
24. Turn the computer upside down, with the front toward you.
25. Remove the two Phillips PM2.5×17.0 screws (1), and the Phillips PM2.5×9.0 screw (2) that secure
the keyboard to the computer.
26. Turn the computer display-side up, with the front toward you.
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27. Open the computer as far as possible.
28. Lift the rear edge of the keyboard (1) until it rests at an angle.
29. Release the keyboard (2) by sliding it back to disengage the tabs on the front edge of the keyboard
from the top cover.
30. Release the zero insertion force (ZIF) connector (1) to which the keyboard cable is attached and
disconnect the keyboard cable (2) from the system board.
31. Remove the keyboard.
32. Turn the computer upside down, with the front toward you.
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33. Remove the two Phillips PM2.5×7.0 screws (1), the two Phillips PM2.0×4.0 screws (2), and the
three Phillips PM2.5×3.0 screws (3) that secure the keyboard cover to the computer.
34. Turn the computer display-side up, with the front toward you.
35. Open the computer as far as possible.
36. Remove the Phillips PM2.5×9.0 screw (1), and the Phillips PM2.5×4.0 screw (2) securing the
keyboard cover to the top cover.
37. Release the keyboard cover (3) by sliding it toward the display assembly until it disengages from
the computer.
38. Remove the keyboard cover (4).
39. Disconnect the num lock cable (1) from the system board.
40. Remove the two Phillips PM2.5×4.0 screws (2) that secure the speaker assembly to the computer.
41. Remove the Phillips PM2.5×9.0 screw (3) that secures the speaker assembly to the computer.
42. Disconnect the speaker cable (4) from the system board.
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43. Lift the speaker assembly (5) straight up to remove it from the computer.
44. Locate the wireless antenna cable (1), and remove from path (2).
45. Disconnect the wireless antenna cable from the system board (3).
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46. Remove the wireless antenna cable from the path (1) and disconnect it from the system board
(2).
CAUTION: The display assembly will be unsupported when the following screws are removed.
To prevent damage to the display assembly, support it before removing the screws.
47. Remove the four Phillips PM2.5×7.0 screws (1) that secure the display assembly to the computer.
48. Remove the display assembly (2).
If it is necessary to replace other display assembly components, continue to the section that corresponds
to the appropriate display assembly
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