Acer Extensa 670 Service Guide

							6-2Field Service 6.2.3 Handling the Computer Battery Pack
The battery pack furnished with the computer requires reasonable care and handling to ensure
efficient operation and maximum life. Periodically inspect the battery terminals and the batteries for
evidence of corrosion and oxide build-up; clean if necessary.
To ensure that the battery packs endure normal life cycle, always observe the following precautions
when handling the battery packs:
· Do not drop the battery pack or subject it to excessive shock and vibration.
· Do not expose the battery pack to direct sunlight, moisture, or chemical compounds.
· Do not disassemble the battery pack.
· Do not use the battery pack to power other devices.
· Do not short the battery leads or connect the battery with reversed polarity.
· Never attempt to charge the battery pack in any way other than as described in this manual.
· Always charge the battery pack as soon as possible after a low battery indication.
6.2.4 Password Caution
The notebook computer can be password protected to prevent unauthorized use. However, if the
password is lost, the notebook must be returned to the Acer Incorporated manufacturing facility in
Temple, Texas U.S.A. to restore access. This service is not covered by warranty.
6.3. Required Tools and Equipment
All Extensa 67x Series Notebook corrective maintenance procedures can be performed using the
following tools:
· Tweezers
· Plastic Stick
· Small flat-blade screwdriver
· Small Phillips screwdriver
Caution:All boards, options and peripherals contain components that are sensitive to static
electricity. When handling any of these items, protect against static electricity by using
wrist  grounding straps and grounded working mats. When moving or storing items, use
the anti-static bags supplied with the items.
6.4. Notebook FRUs
For a listing and description of the notebook Field Replacement Units (FRUs), refer to the appendix
A in this manual for the maintenance data. 
						

							Service Guide6-3 6.5. FRU Removal/Replacement Procedures
The following paragraphs contain field service-level removal/replacement procedures for the 67x
Series Notebook Computers.
Most FRU removal/replacement procedures involve connecting and disconnecting cable connectors.
The Extensa series uses two types of connectors including:
· Locking-type connectors - use a plastic stick to unlock and lock these type of connectors as
shown in Figure 6-1.
· Non-locking connectorsFigure 6-1Removing/Installing Cables with Locking-Type Connectors 
						

							6-4Field Service 6.5.1 Removing/Replacing the Notebook Battery Pack
Before performing any of the assembly/disassembly procedures, always disconnect the AC adapter
from the notebook and remove the battery pack. The procedure for removing and replacing the
battery pack is as follows:
1.Turn off the computer and disconnect the AC adapter from the computer.
2.Unlatch the battery compartment door (right front corner of the unit) as shown in Figure 6-2.
3.Slide the battery compartment door out slightly and then swing the door outwards as shown in
Figure 6-2.
4.Grasp the loop attached to the battery and pull the battery out of the compartment.
5.Insert the replacement battery  with THIS SIDE UP label facing upwards until it snaps in place
and then close the battery compartment door (reverse of Steps 2 and 3).Figure 6-2Battery Removal/Replacement 
						

							Service Guide6-5 6.5.2 Removing/Replacing PCMCIA Options
The procedure for removing and replacing the PCMCIA options is as follows:
1.Turn off the computer and remove the battery pack as described in Paragraph 6.5.1.
2.Press the upper card eject button to eject the upper card, lower button controls the lower card
and use both buttons for Type III devices.
3.To replace the PCMCIA device, remove any filler cards present and insert the device. Reinstall
any external cabling required for the device.Figure 6-3Installing/Removing PCMCIA Options 
						

							6-6Field Service 6.5.3 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 the AC adapter, if installed, and remove the battery
pack as described in Paragraph 6.5.1.
2.Disconnect any peripheral device interface cables from the external interface connectors and
remove any installed PCMCIA options.
3. Turn the computer over and locate the release tab for the hard disk drive bay cover (refer to
Figure 6-4).
4. While pressing slightly on the release tab (Figure 6-4), slide the cover to the right and set aside.Figure 6-4Removing the HDD Bay CoverFigure 6-5Removing/Replacing the Hard Disk Drive Module
5. While lifting upward on the HDD release tab ( using your fingernails), use both finger grip areas
(Figure 6-5) and pull the HDD module out of the notebook.
Caution:Exercise care to only handle the drive by its sides to prevent damage to the drive.
6.Store the HDD in an antistatic bag.
7.Replacement is the reverse of Steps 1 through 5. 
						

							Service Guide6-7 6.5.4 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 as described in Paragraph 6.5.1.
2.Press the Cover Release Latch and open the notebook to a full 180 degree position as shown
in Figure 6-6.
3.Slide each of the two display hinge covers out and pull upward to remove from the notebook.Figure 6-6Removing the Display Hinge Covers
4.Pull up on the keyboard as shown in Figure 6-7 and disconnect the Keyboard cable connectors
J0102 and J0103.
5.If you intend to remove further, then disconnect the Touchpad cable connector J0104.Figure 6-7Removing/Replacing the Keyboard Assembly
6.Install the replacement keyboard assembly by reversing Steps 1 through 5. 
						

							6-8Field Service 6.5.5 Removing/Replacing Expansion Memory
To remove and replace an expansion memory module (soDIMM), perform the following procedure:
1.Power down the notebook, disconnect the AC adapter, and any installed battery packs.
2.Disconnect any peripheral device interface cables from the external interface connectors and
remove any installed PCMCIA options.
3.Turn the notebook over and locate the Expansion Memory Access Cover on the bottom of the
notebook.
4.Remove the screw holding the Expansion Memory Access Cover and remove the cover.
5.To remove a memory module, first release the slot locks located on each side of the Expansion
Memory Connector to release the DIMM. Then pull the memory module out (refer to Figure 6-
8).
6.To replace or install a DIMM module, first align the connector edge of the memory module with
the key in the connector. Insert the edge of the memory module board into the connector using
a rocking motion to fully insert the module. Push downward on each side of the memory
module until it snaps in place.
7.Reinstall the Expansion Memory Access Cover using the screw removed in Step 4.Figure 6-8Memory Expansion Removal/Replacement
Note: After installing expansion memory in your notebook, you must run the PHDISK utility in order
for the Save-To-Disk or 0V Suspend functions to operate correctly (refer to the procedure
in Chapter 2 of this manual). 
						

							Service Guide6-9 6.5.6 Removing the Heat Sink Assembly
Use the following procedure to remove and replace the Heat Sink Assembly:
1.Remove the Keyboard Assembly as described in Paragraph 6.5.4.
2.Remove the two screws that secure the heat plate to the housing as shown in Figure 6-9.
3.Replacement is the reverse of Steps 1 and 2.Figure 6-9Removing/Replacing the Heat Sink Assembly 
						

							6-10Field Service 6.5.7 Removing/Replacing the CPU Chip
The CPU chip is installed in a Zero Insertion Force type socket to facilitate removal and
replacement. To remove the CPU, refer to Figure 6-10 and use the following procedure:
1.Power down the notebook, remove the battery packs, and disconnect the AC Adapter, and
remove the Heat Sink Assembly as described in Paragraph 6.5.7.
2.Refer to Figure 6-10. Insert a flat-blade screwdriver into the opening at the left end of the
socket labeled OPEN and push toward the other end of the socket.
3.Pull out the CPU and insert the replacement unit. Ensure that the CPU is properly keyed before
pressing it into the socket.
4.Insert a flat-bladed screwdriver into the opening at the right end of the socket labeled LOCK
and push toward the opposite end to lock the socket.Figure 6-10Removing/Replacing the CPU Chip 
						

							Service Guide6-11 6.5.8 FDD/CD-ROM Drive Removal
1.Remove the battery and AC adapter as described in Paragraph 6.5.1.
2.Unlatch the module by pushing the Module Lock (Figure 6-11) toward the unlock icon.
3.Grasp the recessed grip area on the module and pull the module straight out.
4.Reinstall the module by reversing Step 3.Figure 6-11Removing/Replacing a Module