compaq evo notebook n1000 series User Manual

Removal and Replacement Procedures
Maintenance and Service Guide5–49
5.20 Top Cover
✎When replacing the top cover, ensure that the microphone is 
removed from the old top cover and installed on the new top 
cover.
1. Prepare the computer for disassembly (Section 5.3) and 
remove the following components:
a. LED cover (Section 5.9)
b. Keyboard (Section 5.10)
c. Heat spreader (Section 5.11)
d. Display (Section 5.13)
e. Palm rest (Section 5.14)
2. Turn the base enclosure bottom side up with the rear panel...

5–50Maintenance and Service Guide
Removal and Replacement Procedures
3. Remove the two TM2.5 × 8.0 screws that secure the top cover 
to the base enclosure (Figure 5-39).
Figure 5-39. Removing the Top Cover Screws
4. Turn the base enclosure top side up with the front facing 
forward.
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Removal and Replacement Procedures
Maintenance and Service Guide5–51
5. Remove the three TM2.5 × 5.0 screws 1 that secure the top 
cover to the base enclosure (Figure 5-40).
6. Lift the top cover straight up 
2 approximately one inch, then 
slide it forward 
3 until the microphone cable 4 is exposed.
7. Disconnect the microphone cable 
5 from the system board.
8. Remove the microphone 
6 from the top cover.
9. Remove the top cover from the base enclosure.
Figure 5-40. Removing the Top Cover and...

5–52Maintenance and Service Guide
Removal and Replacement Procedures
✎After the top cover is removed, the system board-to-TouchButton 
board cable can be removed. The system board-to-TouchButton 
board cable is included in the Miscellaneous Cable Kit, spare part 
number 285540-001.
10. Release the ZIF connector 
1 to which the system 
board-to-TouchButton board cable is attached and disconnect 
the cable 
2 from the system board (Figure 5-41).
Figure 5-41. Removing the System Board-to-TouchButton 
Board...

Removal and Replacement Procedures
Maintenance and Service Guide5–53
5.21 Fan
1. Prepare the computer for disassembly (Section 5.3) and 
remove the following components:
a. LED cover (Section 5.9)
b. Keyboard (Section 5.10)
c. Heat spreader (Section 5.11)
d. Display (Section 5.13)
e. Palm rest (Section 5.14)
f. Top cover (Section 5.20)
Fan
Spare Part Number Information
Fan 285543-001
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5–54Maintenance and Service Guide
Removal and Replacement Procedures
2. Disconnect the fan cable 1 from the system board 
(Figure 5-42).
3. Remove the fan 
2 from the base enclosure.
Figure 5-42. Removing the Fan
Reverse the preceding procedures to install the fan.
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Removal and Replacement Procedures
Maintenance and Service Guide5–55
5.22 System Board
✎When replacing the system board, ensure that the following 
components are removed from the old system board and installed 
on the new system board:
■Memory expansion boards (Section 5.5)
■Mini PCI communications board (Section 5.6)
■Disk cell RTC battery (Section 5.7)
■Processor (Section 5.12)
■Modem cable (Section 5.23)
1. Prepare the computer for disassembly (Section 5.3) and 
remove the following components:
a....

5–56Maintenance and Service Guide
Removal and Replacement Procedures
2. Remove the two TM2.5 × 5.0 screws 1 that secure the optical 
drive front alignment rail to the base enclosure (Figure 5-43).
3. Remove the front alignment rail 
2 from the base enclosure.
4. Remove the two TM2.5 × 5.0 screws 
3 that secure the optical 
drive rear alignment rail to the base enclosure.
5. Remove the rear alignment rail 
4 from the base enclosure.
Figure 5-43. Removing the Optical Drive Alignment Rails
✎The optical...

Removal and Replacement Procedures
Maintenance and Service Guide5–57
6. Remove the following screws:
❏TM2.5 × 5.0 screw 1 next to the PC Card assembly 
(Figure 5-44)
❏TM2.5 × 5.0 screw 2 next to the RJ-11 and 
RJ-45 connectors
❏TM2.5 × 5.0 screw 3 next to the audio connectors
Figure 5-44. Removing the System Board Screws
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5–58Maintenance and Service Guide
Removal and Replacement Procedures
7. Lift the front edge of the system board until it rests at an 
angle 
1 (Figure 5-45).
8. Slide the system board forward 
2 and remove it from the 
base enclosure.
Figure 5-45. Removing the System Board
Reverse the preceding procedures to install the system board.
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