compaq presario 900 series User Manual

							Removal and Replacement Procedures
Maintenance and Service Guide5–43
7. Remove the four TM2.5 × 5.0 screws 1 that secure the 
TouchPad, TouchButton board, and TouchPad bracket to the 
palm rest (Figure 5-34).
8. Remove the TouchPad bracket 
2, TouchButton board 3, and 
TouchPad 
4 from the palm rest. 
Figure 5-34. Removing the TouchPad Components
5.17 Display Release Assembly
✎Display release assemblies 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.
1. Prepare the computer for disassembly (Section 5.3).
2. Remove the palm rest (Section 5.14).
3. Turn the palm rest bottom side up with the speaker grilles 
facing forward.
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							5–44Maintenance and Service Guide
Removal and Replacement Procedures
4. Remove the two TM2.5 × 5.0 screws 1 that secure the 
display release assembly to the palm rest (Figure 5-35).
5. Remove the assembly 
2 from the palm rest.
Figure 5-35. Removing the Display Release Assembly
Reverse the preceding procedures to install the display release 
assembly.
5.18 Charger Board
1. Prepare the computer for disassembly (Section 5.3).
2. Remove the palm rest (Section 5.14).
Charger Board
Spare Part Number Information
Charger board
The charger board shield is included in the Miscellaneous 
Plastics/Hardware Kit, spare part number 285541-001.285525-001
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							Removal and Replacement Procedures
Maintenance and Service Guide5–45
3. Remove the three TM2.5 × 5.0 screws 1 that secure the 
charger board to the base enclosure (Figure 5-36).
4. Lift the front edge of the charger board shield 
2 until it clears 
the base enclosure, then slide the shield forward to remove it.
5. Lift up on the back edge of the charger board 
3 to disconnect 
it from the system board.
6. Remove the charger board from the base enclosure.
Figure 5-36. Removing the Charger Board
Reverse the preceding procedures to install the charger board.
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							5–46Maintenance and Service Guide
Removal and Replacement Procedures
5.19 Speaker Assembly
1. Prepare the computer for disassembly (Section 5.3).
2. Remove the palm rest (Section 5.14).
3. Remove the charger board (Section 5.18).
Speaker Assembly
Spare Part Number Information
Speaker assembly 285538-001
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							Removal and Replacement Procedures
Maintenance and Service Guide5–47
4. Disconnect the speaker cable 1 from the system board 
(Figure 5-37).
5. Swing the battery bay support bracket 
2 to the right until it 
clears the right edge of the speaker assembly.
6. Lift the front edge of the speaker assembly until it rests at an 
angle 
3.
7. Slide the speaker assembly forward and remove it 
4 from the 
base enclosure.
Figure 5-37. Removing the Speaker Assembly
Reverse the preceding procedures to install the speaker assembly.
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							5–48Maintenance and Service Guide
Removal and Replacement Procedures
5.20 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 
facing forward.
Top Cover
Spare Part Number Information
Top cover 285535-001
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							Removal and Replacement Procedures
Maintenance and Service Guide5–49
3. Remove the two TM2.5 × 8.0 screws that secure the top cover 
to the base enclosure (Figure 5-38).
Figure 5-38. Removing the Top Cover Screws
4. Turn the base enclosure top side up with the front facing 
forward.
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							5–50Maintenance and Service Guide
Removal and Replacement Procedures
5. Remove the three TM2.5 × 5.0 screws 1 that secure the top 
cover to the base enclosure (Figure 5-39).
6. Remove the top cover from the base enclosure 
2.
Figure 5-39. Removing the Top Cover
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							Removal and Replacement Procedures
Maintenance and Service Guide5–51
✎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.
7. 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 5-40).
Figure 5-40. Removing the System Board-to-TouchButton 
Board Cable
Reverse the preceding procedures to install the top cover.
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							5–52Maintenance and Service Guide
Removal and Replacement Procedures
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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