Acer Extensa 670 Service Guide

							6-12Field Service 6.5.9 Removing/Replacing the Display Assembly
Use the following procedure to remove/replace the display assembly:
1.Remove the battery and AC adapter as described in Paragraph 6.5.1.
2.Refer to Figure 6-12 and remove the two screws that secure the display cable to the
Motherboard assembly. Then unplug display cable J19Figure 6-12Unplugging the Display Cable
3.Remove the four display hinge screws (Figure 6-13) and separate the Display Assembly from
the Base Assembly.
4.Installation is the reverse of Steps 1 through 3.Figure 6-13Removing the Display Hinge Screws 
						

							Service Guide6-13 10 Removing/Replacing the Top Cover
1.Separa
2.Remove the two screws that secure the heat sink to the base assembly.
Remove the two screws on the top and nine screws on the bottom that hold the top cover in
place; unsnap and remove the top cover (refer to Figure 6-14).
Replacement of the top cover is the reverse of Steps 1 through 3.1. Remove two screws near display hinge
screw holes.2. Remove 9 screws from the bottom of the
unit (1 circled screw is shorter).3. Unsnap and remove the top cover.Figure 6-14Removing/Replacing the Top Cover 
						

							6-14Field Service 6.5.11 Removing/Replacing FIR/Audio Board
Use the following procedure to remove/replace the FIR/Audio Board Assembly:
1.Remove the top cover and fan assemblies as described in Paragraph 6.5.10.
2.Separate the inside frame assembly from the base assembly.
3.Refer to Figure 6-15 and remove the following connectors:
· Left Speaker Cable J4
· Internal Microphone Cable J5
· Fan Connector J6
· Right Speaker Cable J7Figure 6-15Unplugging Cables on FIR/Audio Board
4.Remove the two screws that secure the FIR/Audio Board to the Motherboard and remove the
cover plate (refer to Figure 6-15).
5.Pull up and remove the FIR/Audio Board (Figure 6-16).
6.Replacement is the reverse of Steps 1 through 5.Figure 6-16Removing/Replacing the FIR/Audio Board 
						

							Service Guide6-15 6.5.12 Removing/Replacing the Fan Assembly
To remove and replace the fan assembly, perform the following procedure:
1.Remove the Top Cover Assembly as described in Paragraph 6.5.10.
2.Remove the two screws that secure the cover plate to the FIR/Audio Board.
3.Remove the two screws holding the fan assembly in place and unplug the fan cable connector
J6 from the FIR/Audio Board (refer to Figure 6-17).
4.Remove the Fan Assembly.
5.  Replacement is the reverse of Steps 1 through 4.Figure 6-17Internal Assemblies, Removal/ReplacementJ17CN1Fan AssemblyLED Board AssemblyLED Board CableBattery Board CableBattery BoardFIR/Audio CoverFan Connector J6 
						

							6-16Field Service 6.5.13 Removing/Replacing the LED Board
1.Remove the Top Cover Assembly as described in Paragraph 6.5.10.
2.Disconnect the LED cable from the Main Board (refer to Figure 6-17).
3.Remove the LED Board Assembly.
4.Replacement is the reverse of Steps 1 through 3.
6.5.14 Removing/Replacing Inside Frame Assy
Use the following procedure to separate the inside frame assembly from the base assembly:
1.Remove the Top Cover as described in Paragraphs 6.5.10.
2.  Separate the inside frame assembly from the base assembly as shown in Figure 6-18.Remove three screws that secure
the inside frame assembly to the
base assembly.Separate the inside frame
assembly from the base
assemblyFigure 6-18 Removing/Replacing the Inside Frame Assembly 
						

							Service Guide6-17 6.5.15 Removing/Replacing the Battery Board
1.Remove the Top Cover Assembly as described in Paragraph 6.5.10.
2.Disconnect the Battery Board Cable from the Main Board (refer to Figure 6-17).
3.Remove the two screws holding the Battery Board and remove the Battery Board Assembly
(refer to Figure 6-19). .
4.  Replacement is the reverse of Steps 1 through 3.Figure 6-19Removing/Replacing the Battery Board 
						

							6-18Field Service 6.5.16 Removing/Replacing the Charger Board
Use the following procedure to remove/replace the Charger Board:
1.Remove the Top Cover as described in Paragraphs 6.5.10 respectively.
2.Separate the inside frame assembly from the base assembly as shown in Figure 6-18.
3.Turn the unit over and remove the screw holding the Charger Board to the inside of the Frame
Assembly (Figure 6-20). Remove the Charger Board.
4.  To reinstall the Charger Board, reverse the removal procedure.Figure 6-20Removing/Replacing the Charger Board Assembly 
						

							Service Guide6-19 6.5.17 Removing/Replacing the Motherboard and Keyboard Connection
Board Assemblies
Use the following procedure to remove/replace the Motherboard Assembly:
1.Remove the Top Cover and Fan Assemblies as described in Paragraphs 6.5.10.
2.Unplug the Battery Board, LED Board Connector as described in paragraph 6.5.12.
4.Refer to Paragraph 6.5.16 and remove the Charger Board Assembly.
5.  Remove the five screws that secure the motherboard to the inside assembly frame. Pull up on
the Motherboard Assembly to release it from the inside assembly frame (refer to Figure 6-21).
6.  Turn the motherboard over and remove the Keyboard Connection Board.Figure 6-21Detaching Motherboard from Inside Frame Assembly 
						

							6-20Field Service 6.5.18 Removing/Replacing the PCMCIA Connector Module
Use the following procedure to remove/replace the PCMCIA Connector Module:
1.Remove the Motherboard Assembly as described in Paragraph 6.5.17.
2.Remove the four screws securing the PCMCIA Module to the Motherboard Assembly (refer to
Figure 6-22).
3.  Replacement is the reverse of Steps 1 through 3.Figure 6-22Removing/Replacing the PCMCIA Module 
						

							Service Guide6-21 6.5.19 Removing/Replacing the Touchpad Assembly
Use the following procedure to remove/replace the Touchpad Assembly:
1.Remove the Keyboard Assembly as described in Paragraph 6.5.4.
2.Remove the Top Cover Assembly as described in Paragraph 6.5.10.
3.Refer to Figure 6-23; remove the center screw and disconnect the Touchpad cable J1.
4.Remove the Touchpad main sensor and connector unit.
5.Remove the two side screws and remove the metal plate.
6.Lift up and remove the Touchpad buttons.
7.Lift up and remove the Touchpad.
8.Replacement is essentially the reverse of Steps 1 through 7.
Remove 1 screw and disconnect J1Lift up and remove touchpad buttonsLift up and remove touchpadFigure 6-23Removing/Replacing the Touchpad Assembly
Caution: If the notebook is powered up with the LCD bezel removed, you can be exposed to high
voltages which could result in shock and equipment damage.  Ensure that the batteries
and AC adapter are removed from the notebook when working on the LCD/Display
assembly.