User manual HP COMPAQ PRESARIO R4155EA

[. . . ] Maintenance and Service Guide HP Pavilion zv6000 Notebook PC Compaq Presario R4000 Notebook PC Document Part Number: 382519-002 July 2005 This guide is a troubleshooting reference used for maintaining and servicing the notebook. It provides comprehensive information on identifying notebook features, components, and spare parts; troubleshooting notebook problems; and performing notebook disassembly procedures. © Copyright 2005 Hewlett-Packard Development Company, L. P. registered trademarks of Microsoft Corporation. AMD, Athlon, Sempron, and combinations thereof, are trademarks of Advanced Micro Devices, Inc. [. . . ] When grounding is not possible, use an ionizer to dissipate electric charges. Maintenance and Service Guide 4­5 Removal and Replacement Preliminaries 4. 6 Workstation Precautions Use the following grounding precautions at workstations: Cover the workstation with approved static-shielding material (refer to Table 4-2, "Static-Shielding Materials"). Use a wrist strap connected to a properly grounded work surface and use properly grounded tools and equipment. Use conductive field service tools such as cutters, screwdrivers, and vacuums. When fixtures must directly contact dissipative surfaces, use fixtures made only of static-safe materials. Keep the work area free of nonconductive materials such as ordinary plastic assembly aids and Styrofoam. Handle electrostatic-sensitive components, parts, and assemblies by the case or PCM laminate. Handle these items only at static-free workstations. Avoid contact with pins, leads, or circuitry. Turn off power and input signals before inserting or removing connectors or test equipment. 4­6 Maintenance and Service Guide Removal and Replacement Preliminaries 4. 7 Grounding Equipment and Methods Grounding equipment must include either a wrist strap or a foot strap at a grounded workstation. When seated, wear a wrist strap connected to a grounded system. Wrist straps are flexible straps with a minimum of one megohm ±10% resistance in the ground cords. To provide proper ground, wear a strap snugly against the skin at all times. On grounded mats with banana-plug connectors, use alligator clips to connect a wrist strap. When standing, use foot straps and a grounded floor mat. Foot straps (heel, toe, or boot straps) can be used at standing workstations and are compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use foot straps on both feet with a minimum of one megohm resistance between the operator and ground. To be effective, the conductive strips must be worn in contact with the skin. Other grounding equipment recommended for use in preventing electrostatic damage includes: Antistatic tape Antistatic smocks, aprons, and sleeve protectors Conductive bins and other assembly or soldering aids Nonconductive foam Conductive tabletop workstations with ground cords of one megohm resistance Static-dissipative tables or floor mats with hard ties to the ground Field service kits Static awareness labels Material-handling packages Nonconductive plastic bags, tubes, or boxes Metal tote boxes Electrostatic voltage levels and protective materials Maintenance and Service Guide 4­7 Removal and Replacement Preliminaries Table 4-1 shows how humidity affects the electrostatic voltage levels generated by different activities. Table 4-1 Typical Electrostatic Voltage Levels Relative Humidity Event Walking across carpet Walking across vinyl floor Motions of bench worker Removing DIPS from plastic tube Removing DIPS from vinyl tray Removing DIPS from Styrofoam Removing bubble pack from PCB Packing PCBs in foam-lined box 10% 35, 000 V 12, 000 V 6, 000 V 2, 000 V 11, 500 V 14, 500 V 26, 500 V 21, 000 V 40% 15, 000 V 5, 000 V 800 V 700 V 4, 000 V 5, 000 V 20, 000 V 11, 000 V 55% 7, 500 V 3, 000 V 400 V 400 V 2, 000 V 3, 500 V 7, 000 V 5, 000 V A product can be degraded by as little as 700 V. Table 4-2 lists the shielding protection provided by antistatic bags and floor mats. Table 4-2 Static-Shielding Materials Material Antistatic plastic Carbon-loaded plastic Metallized laminate Use Bags Floor mats Floor mats Voltage Protection Level 1, 500 V 7, 500 V 5, 000 V 4­8 Maintenance and Service Guide 5 Removal and Replacement Procedures This chapter provides removal and replacement procedures. There are as many as 75 screws, in 9 different sizes, that may have to be removed, replaced, or loosened when servicing the notebook. Make special note of each screw and screw lock size and location during removal and replacement. Refer to Appendix C, "Screw Listing. " for detailed information on screw and screw lock sizes, locations, and usage. Maintenance and Service Guide 5­1 Removal and Replacement Procedures 5. 1 Serial Number Report the notebook serial number to HP when requesting information or ordering spare parts. The serial number is located on the bottom of the notebook. Serial Number Location 5­2 Maintenance and Service Guide Removal and Replacement Procedures 5. 2 Disassembly Sequence Chart Use the chart below to determine the section number to be referenced when removing notebook components. Disassembly Sequence Chart Section 5. 3 Description Preparing the Notebook for Disassembly Battery pack Hard Drive # of Screws Removed 0 2 loosened to remove the hard drive cover 2 to remove the hard drive 4 to remove the hard drive frame 0 1 loosened to remove the memory module compartment cover 1 4 2 2 4 0 5. 4 5. 5 5. 6 Notebook Feet External Memory Module 5. 7 5. 8 5. 9 5. 10 5. 11 5. 12 Optical Drive Keyboard Cover Volume Board Bluetooth Board Keyboard Mini PCI Communications Card Å To prevent an unresponsive system and the display of a warning message, install only a Mini PCI device authorized for use in your notebook by the governmental agency that regulates wireless devices in your country. [. . . ] All screws listed in this appendix are available in the Screw Kit, spare part number 383673-001. Maintenance and Service Guide C­1 Screw Listing Table C-1 Phillips PM2. 0×7. 0 Screw Head Width 4. 5 mm mm Color Black Qty. 40 Length 7. 0 mm Thread 2. 0 mm Where used: 1 Two screws that secure the hard drive cover to the notebook (screws are captured on the cover by C clips; documented in Section 5. 4) 2 One screw that secures the memory module compartment cover to the notebook (screw is captured on the cover by a C clip; documented in Section 5. 6) Phillips PM2. 0×7. 0 Screw Locations C­2 Maintenance and Service Guide Screw Listing Table C-1 Phillips PM2. 0×7. 0 Screw (Continued) Head Width 4. 5 mm mm Color Black Qty. 40 Length 7. 0 mm Thread 2. 0 mm Where used: 1 Two screws that secure the hard drive to the notebook (documented in Section 5. 4) 2 One screw that secures the optical drive to the notebook (documented in Section 5. 7) Phillips PM2. 0×7. 0 Screw Locations Maintenance and Service Guide C­3 Screw Listing Table C-1 Phillips PM2. 0×7. 0 Screw (Continued) Head Width 4. 5 mm mm Color Black Qty. 40 Length 7. 0 mm Thread 2. 0 mm Where used: 4 screws that secure the display assembly to the notebook on HP Pavilion zv6000 models (documented in Section 5. 14) Phillips PM2. 0×7. 0 Screw Locations C­4 Maintenance and Service Guide Screw Listing Table C-1 Phillips PM2. 0×7. 0 Screw (Continued) Head Width 4. 5 mm mm Color Black Qty. 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