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compaq presario 900 series User Manual

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    							Removal and Replacement Procedures
    Maintenance and Service Guide5–3
    5.2 Disassembly Sequence Chart
    Use the following chart to determine the section number to be 
    referenced when removing computer components.
    Disassembly Sequence Chart
    Section Description # of Screws Removed
    5.3 Preparing the computer for 
    disassembly
    Battery pack 0
    Optical drive 2
    Hard drive 1 to remove the hard 
    drive
    4 to remove the hard 
    drive from hard drive 
    bracket
    5.4 Computer feet 0
    5.5 Memory expansion board 1
    5.6 Mini PCI communications board 1
    5.7 Disk cell RTC battery 0
    5.8 Connector cover 2
    5.9 LED cover 2
    5.10 Keyboard 0
    5.11 Heat spreader 7
    5.12 Processor 0
    272638-001.book  Page 3  Thursday, July 25, 2002  4:21 PM 
    						
    							5–4Maintenance and Service Guide
    Removal and Replacement Procedures
    5.3 Preparing the Computer for 
    Disassembly
    Perform the following steps before disassembling the computer:
    1. Turn off the computer.
    2. Disconnect the AC adapter and all external devices.
    Section Description # of Screws Removed
    5.13 Display 6
    5.14 Palm rest 6
    5.15 Diskette drive 3
    5.16 TouchPad components 4
    5.17 Display release assembly 2
    5.18 Charger board 3
    5.19 Speaker assembly 0
    5.20 Top cover 5
    5.21 Fan 0
    5.22 System board 7
    5.23 Modem cable 1
    Disassembly Sequence Chart (Continued)
    272638-001.book  Page 4  Thursday, July 25, 2002  4:21 PM 
    						
    							Removal and Replacement Procedures
    Maintenance and Service Guide5–5
    3. Remove the battery pack by following these steps:
    a. Turn the computer bottom side up with the left side 
    facing forward.
    b. Slide and hold the battery release latch 
    1 toward the back 
    of the computer (Figure 5-2).
    c. Use the notch in the battery bay to slide the battery pack 
    out of the battery bay 
    2.
    d. Remove the battery pack.
    Figure 5-2. Releasing the Battery Pack
    Reverse the preceding procedures to install the battery pack.
    Battery Packs
    Spare Part Number Information
    8 cell, 58 W hour, 3.6 Ah, Li ion 281766-001
    272638-001.book  Page 5  Thursday, July 25, 2002  4:21 PM 
    						
    							5–6Maintenance and Service Guide
    Removal and Replacement Procedures
    4. To remove the battery bezel, slide the bezel straight down 
    (Figure 5-3).
    Figure 5-3. Removing the Battery Bezel
    ✎Battery bezels are available with carbon finish for Evo Notebook 
    N1005 models and silver finish for Presario 900 models, and are 
    included in the Miscellaneous Plastics/Hardware Kit, spare part 
    number 285541-001.
    Reverse the preceding procedures to install the battery bezel.
    272638-001.book  Page 6  Thursday, July 25, 2002  4:21 PM 
    						
    							Removal and Replacement Procedures
    Maintenance and Service Guide5–7
    5. Remove the optical drive by following these steps:
    a. Turn the computer bottom side up with the left side 
    facing forward.
    b. Remove the two TM2.5 × 5.0 screws that secure the 
    optical drive to the base enclosure (Figure 5-4).
    Figure 5-4. Removing the Optical Drive Screws
    Optical Drives
    Spare Part Number Information
    24X Max CD-ROM drive
    16X Max CD-RW drive
    8X Max DVD-ROM drive
    8X Max DVD-ROM/CD-RW combination drive285526-001
    285528-001
    285527-001
    285529-001
    272638-001.book  Page 7  Thursday, July 25, 2002  4:21 PM 
    						
    							5–8Maintenance and Service Guide
    Removal and Replacement Procedures
    c. Turn the computer top side up with the right side facing 
    forward.
    d. Insert a paper clip or similar thin metal rod into the 
    manual release hole on the front bezel of the optical 
    drive
    1 (Figure 5-5). Press firmly.
    e. Grasp the drive bezel and slide the drive out of the optical 
    drive bay 
    2.
    Figure 5-5. Removing an Optical Drive
    Reverse the preceding procedures to install a optical drive.
    272638-001.book  Page 8  Thursday, July 25, 2002  4:21 PM 
    						
    							Removal and Replacement Procedures
    Maintenance and Service Guide5–9
    6. Remove the hard drive by following these steps:
    a. Turn the computer bottom side up with the right side 
    facing forward.
    b. Remove the TM2.5 ×8.0 hard drive retention screw 
    1 
    (Figure 5-6).
    c. Slide the hard drive forward 
    2 to unseat the hard drive 
    connector from the system board.
    Figure 5-6. Removing the Hard Drive Screw
    Hard Drives
    Spare Part Number Information
    40 MB
    30 MB
    20 MB273491-001
    192406-001
    288291-001
    272638-001.book  Page 9  Thursday, July 25, 2002  4:21 PM 
    						
    							5–10Maintenance and Service Guide
    Removal and Replacement Procedures
    d. Lift the front edge of the hard drive 1 until it rests at an 
    angle (Figure 5-7).
    e. Remove the hard drive from the hard drive bay 
    2.
    Figure 5-7. Removing the Hard Drive
    272638-001.book  Page 10  Thursday, July 25, 2002  4:21 PM 
    						
    							Removal and Replacement Procedures
    Maintenance and Service Guide5–11
    7. Remove the four PM3.0 × 3.0 screws 1 that secure the hard 
    drive to the hard drive bracket (Figure 5-8).
    8. Slide the hard drive out of the hard drive bracket 
    2.
    Figure 5-8. Removing the Hard Drive Bracket
    ✎Hard drive brackets are available with carbon finish for 
    Evo Notebook N1005 models and silver finish for Presario 900 
    models, and are included in the Miscellaneous Plastics/Hardware 
    Kit, spare part number 285541-001.
    Reverse the preceding procedures to install the hard drive and 
    hard drive bracket.
    272638-001.book  Page 11  Thursday, July 25, 2002  4:21 PM 
    						
    							5–12Maintenance and Service Guide
    Removal and Replacement Procedures
    5.4 Computer Feet
    The computer feet are adhesive-backed rubber pads. The 
    computer feet are included in the Miscellaneous 
    Plastics/Hardware Kit, spare part number 285541-001. The 
    computer feet attach to the base enclosure as illustrated in 
    Figure 5-9.
    Figure 5-9. Replacing the Computer Feet
    5.5 Memory Expansion Board
    1. Prepare the computer for disassembly (Section 5.3).
    2. Turn the computer bottom side up with the front facing 
    forward.
    Memory Expansion Boards
    Spare Part Number Information
    512 MB
    256 MB
    128 MB285524-001
    285523-001
    285222-001
    272638-001.book  Page 12  Thursday, July 25, 2002  4:21 PM 
    						
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