Acer Extensa 900 Maintenance Manual

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Figure 6-7  Installing/Removing PCMCIA Options
6.5.3 Installing/Removing the Mobile Productivity Base
The procedure for removing and replacing the Mobile Productivity Base assembly is as 
follows:
1. Power down the notebook and disconnect the AC adapter if installed.
2.   Slide the lever release latch to the front of the MPB to release the docking 
lever (refer to Figure 6-8).
3.Swing the Docking Lever outward a full 90 degrees from the side of the MPB. 

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Figure 6-8  Removing/Replacing the MPB
4.The swing lever also pushes the computer up slightly off the MPB allowing 
you to grasp the computer on the left hand side.
5. Lift the computer up slightly on the left hand side. Hold the computer securely 
on both ends and pull the computer out of the MPB, left side first as shown 
in Figure 6-8
6.Close the lever and close the expansion door on the bottom of the computer.
7.To replace the notebook in the MPB, turn the notebook over and open...

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9.Slide the computer into the MPB, right side first, ernsuring that the guides 
on both the computer and the docking base are securely hooked; then rest 
the computer on the base.
10.Press and hold down the computer; then swing the lever toward the MPB 
until the latch release locks the computer in place.
6.5.4 Removing/Replacing the Hard Disk Drive Assembly
The procedure for removing and replacing the Hard Disk Drive assembly is as follows:
1. Power down the notebook,  disconnect...

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5.Store the HDD in an antistatic bag.
6.Replacement is the reverse of Steps 1 through 5.
6.5.5 Removing/Replacing the Keyboard Assembly
The procedure for removing and replacing the keyboard assembly is as follows:
1.Turn off the computer; disconnect the AC power adapter (if it is attached), 
and remove the battery pack and PCMCIA cards as described in Paragraphs 
6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached.
2.Remove the four screws near the display hinges...

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5.Unplug the keyboard connectors (CN5 and CN14) and set aside the Keyboard 
Assembly.
6.Replacement is essentially the reverse of Steps 1 through 5.
6.5.6 Heat Sink Assembly Removal/Replacement
To remove and replace the Heat Sink Assembly, use the following procedure:
1.Turn off the computer; disconnect the AC power adapter (if it is attached), 
and remove the battery pack and PCMCIA cards as described in Paragraphs 
6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if...

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6.5.7 Display Assembly Removal/Replacement
To remove and replace the Display Assembly, use the following procedure:
1.Turn off the computer; disconnect the AC power adapter (if it is attached), 
and remove the battery pack and PCMCIA cards as described in Paragraphs 
6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached.
2.Remove the Keyboard Assembly as described in Paragraph 6.5.5.
3.Remove the Heat Sink Assembly as described in Paragraph 6.5.6.
4.Refer to Figure...

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6.5.8 Removing/Replacing the LED/Microphone Board 
Assembly
To remove and replace the LED Board Assembly, use the following procedure:
1.Turn off the computer; disconnect the AC power adapter (if it is attached), 
and remove the battery pack and PCMCIA cards as described in Paragraphs 
6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached.
2.Remove the Keyboard Assembly as described in Paragraph 6.5.5.
3.Remove the Heat Sink Assembly as described in Paragraph...

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6.5.9 Removing/Replacing the CPU Board
To remove and replace the CPU Board Assembly, use the following procedure:
1.Turn off the computer; disconnect the AC power adapter (if it is attached), 
and remove the battery pack and PCMCIA cards as described in Paragraphs 
6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached.
2.Remove the Keyboard Assembly as described in Paragraph 6.5.5.
3.Remove the Heat Sink Assembly as described in Paragraph 6.5.6.
4.Remove the screw...

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6.5.10 Removing/Replacing the Top Cover
To remove and replace the Top Cover Assembly, use the following procedure:
1.Turn off the computer; disconnect the AC power adapter (if it is attached), 
and remove the battery pack and PCMCIA cards as described in Paragraphs 
6.5.1 and 6.5.2. Also disconnect the MPB (Paragraph 6.5.3) if attached.
2.Remove the Keyboard Assembly as described in Paragraph 6.5.5.
3.Remove the Heat Sink Assembly as described in Paragraph 6.5.6.
4.Remove the...

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Figure 6-15  Removing/Replacing the Top Cover
3Unplug Speaker 
Connector CN19 an
remove screws at fo
corners
1
2Remove keyboard and
Heat Sink Assemblies
Remove four Screws
at Bottom of Main Unit
4Beginning at left side, 
unsnap top cover
from base assembly