- Computers & electronics
- Computer components
- System components
- Server/workstation motherboards
- Acer
- 4720G
- Service guide
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Chapter 3
Machine Disassembly and Replacement
This chapter contains step-by-step procedures on how to disassemble the notebook computer for maintenance and troubleshooting.
To disassemble the computer, you need the following tools:
T
Wrist grounding strap and conductive mat for preventing electrostatic discharge
T
T
Small Philips screw driver
Philips screwdriver
T
Plastic flat head screw driver
T
Tweezers
NOTE: The screws for the different components vary in size. During the disassembly process, group the screws with the corresponding components to avoid mismatch when putting back the components.
When you remove the stripe cover, please be careful not to scrape the cover.
Chapter 3 51
General Information
Before You Begin
Before proceeding with the disassembly procedure, make sure that you do the following:
1.
Turn off the power to the system and all peripherals.
2.
Unplug the AC adapter and all power and signal cables from the system.
3.
Remove the battery pack.
52 Chapter 3
Disassembly Procedure Flowchart
The flowchart on the succeeding page gives you a graphic representation on the entire disassembly sequence and instructs you on the components that need to be removed during servicing. For example, if you want to remove the system board, you must first remove the keyboard, then disassemble the inside assembly frame in that order.
Start
Battery Pack
D*5
F*1
Thermal
Door
Memory
F*1
Mimi Cover
F*2
HDD Door
H*4
HDD Bracket HDD
B*1
D*1
System Fan
B*4
Thermal
Module
F*1
ODD Module
CPU
Lower Case
Assembly
Middle Cover
F*2
Keyboard
C*2 LCD hinges to logic
D*2 LCD hinges to logic
C*2 on bottom side
LCD Module
C*8 upper case assembly to lower case assembly on bottom side
C*2 upper case assembly to lower case assembly on upper side
Upper Case
Assembly
F*1
Modem
Board
Lower Case
F*1
Main Board
F*2
Speaker Set
Switch Board
(for AS models)
F*2
Media Board
(for AS models)
Touchpad
F*1
Touchpad
Bracket
Touchpad
FFC
Chapter 3 53
54
LCD Panel
G*2 for 15.4"
Wireless
Antenna Set
LCD Module
B*4
LCD Bezel
G*1 for 15"
G*2 for 15.4"
LCD Inverter
B*2
LCD
Assembly
LCD Cable
F*8 (4 on left; 4 on right)
LCD Bracket
Sets
Screw List
Item
A
B
C
D
E
Description
SCREW M2.0*3.0-I-NI-NYLOK
SCREW M2.5*4.0-I(NI)(NYLOK)
SCREW M2.5*3.5-I(BNI)(NYLOK)
SCREW M1.6*3-I(NI)(NYLOK)
SCREW M2.5 *7L-BNI-NYLOK
Part Number
86.A08V7.005
86.D01V7.001
86.AHS07.001
86.AHS07.002
86.A10V7.006
LCD
Chapter 3
Removing the Battery Pack
1.
Unlock the battery lock as shown.
2.
Slide the battery release latch then remove the battery.
Chapter 3 55
Removing the HDD Module/ODD Module/Memory/Wireless LAN Card/
Keyboard and the LCD Module
1.
Press and release the PC dummy card from the PC slot as shown.
2.
To access the internal laptop components, you have to first remove the back panel. Turn over the laptop and remove the seven screws fastening the back panel.
3.
Lift the back panel up as shown.
Removing the HDD Module
4.
Remove the two screws fastening the HDD module bracket.
5.
Pull the tab on the HDD bracket to remove the HDD module in the direction of the arrow.
56 Chapter 3
Removing the ODD Module
6.
Remove the screw fastening the ODD module.
7.
Use a flat screwdriver to gently push out the ODD module as shown.
Removing the Memory
8.
Pull out the snaps securing the memory in place. The memory will pop up.
9.
Remove the memory from the DIMM socket (If the notebook has two memory modules, then repeat this step).
Removing the Wireless LAN Card
10. Remove the two screws fastening the wireless LAN card panel.
11. Lift up the panel as shown.
12. Disconnect the three antennae from the wireless LAN card.
Chapter 3 57
13. Remove the two screws fastening the wireless LAN card.
14. Take out the wireless LAN card from the main unit.
Removing the Keyboard and LCD Module
1.
Remove the eight screws fastening the keyboard and LCD module to the main unit.
2.
Turn the notebook over and gently pry up and remove the switch board cover as shown.
3.
Lift the keyboard up and towards you.
4.
Disconnect the keyboard cable from the main board and remove the keyboard from the main unit.
58 Chapter 3
5.
Disconnect both ends of the switch board FFC cable.
6.
Disconnect the LCD and microphone cables, and pull through the wireless LAN antennae from the underside of the main unit.
7.
Remove the six screws securing the hinges.
8.
Detach the LCD module from the main unit.
Chapter 3 59
Disassembling the Main Unit
Separate the Main Unit Into the Upper and the Lower Case Assembly
1.
Remove the ten screws fastening the lower case assembly to the upper case assembly.
2.
Turn the notebook over and remove the three screws fastening the switch board.
3.
Remove the switch board from the main unit.
4.
Remove the ten screws fastening the upper case assembly to the lower case assembly.
5.
Disconnect the touchpad, speaker and bluetooth cables.
6.
Gently lift off the upper case assembly from the lower case assembly.
Disassembling the Lower Case Assembly
Removing the Main Board
1.
Remove the two screws fastening the main board to the lower case.
2.
Disconnect both ends of the audio board FFC cable as shown.
3.
Remove the main board.
60 Chapter 3
Removing the Audio Board
4.
Remove the screw fastening the audio board.
5.
Remove the audio board.
Disassembling the Upper Case Assembly
Removing the Bluetooth Module
1.
Remove the two screws fastening the Bluetooth module.
2.
Disconnect the Bluetooth cable to remove the Bluetooth module.
Removing the Speakers
3.
Remove the three screws fastening the speakers.
4.
Remove the speakers.
Chapter 3 61
Removing the Touchpad Cable
5.
Disconnect the touchpad FFC cable from the touchpad module as shown.
Disassembling the Main Board
Removing the Power Board
1.
Remove the two screws fastening the power board.
2.
Remove the power board.
Removing the Thermal Module and System Fan
3.
Unscrew the six screws fastening the thermal module and system fan.
4.
Disconnect the system fan cable and remove the thermal module and system fan as shown.
62 Chapter 3
Removing the CPU
5.
Use a flat screwdriver to release the CPU lock (Turn counter clockwise).
6.
Remove the CPU from the CPU socket carefully.
Removing the Modem Card
7.
Remove the screw fastening the modem card.
8.
Disconnect the modem cable and remove the modem card.
Chapter 3 63
Disassembling the LCD Module
1.
Remove the six screw rubbers as shown.
2.
Then remove the six screws fastening the LCD bezel.
3.
Detach the LCD bezel from the LCD module carefully.
4.
Remove the four screws holding the LCD.
5.
Detach the two inverter cable connectors from the inverter board.
6.
Disconnect the CCD cable connector from the CCD module.
7.
Take out the LCD from the LCD cover.
8.
Remove the two screws fastening the left LCD bracket and detach it.
9.
Remove the two screws fastening the right LCD bracket and detach it.
64 Chapter 3
10. Disconnect the LCD cable from the rear of the LCD.
11. Detach the microphone cable from the LCD cover and remove the microphone.
12. Remove the CCD module from the LCD cover as shown.
Disassembling the External Modules
Disassembling the HDD Module
1.
Remove the two screws fastening the bracket to the HDD module.
2.
Remove the bracket.
Disassembling the ODD Module
1.
Remove the two screws holding the optical bracket.
2.
Then remove the optical bracket from the optical disk drive.
Chapter 3 65
66 Chapter 3
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Table of contents
- 7 System Specifications
- 7 Features
- 10 System Block Diagram
- 11 Board Layout
- 11 Top View
- 12 Bottom View
- 13 Your Acer Notebook tour
- 13 Front View
- 14 Closed Front View
- 15 Left View
- 16 Right View
- 16 Rear view
- 17 Base view
- 17 Indicators
- 18 Easy-Launch Buttons
- 19 Touchpad Basics
- 20 Using the Keyboard
- 20 Lock Keys and embedded numeric keypad
- 21 Windows Keys
- 22 Hot Keys
- 23 Special Key
- 24 Acer Empowering Technology
- 24 Empowering Technology password
- 25 Acer eNet Management
- 26 Acer ePower Management
- 28 Acer eAudio Management
- 29 Acer ePresentation Management
- 29 Acer eDataSecurity Management
- 31 Acer eLock Management
- 32 Acer eRecovery Management
- 33 Acer eSettings Management
- 34 Getting to know your Acer Cystal Eye webcam
- 35 Using the System Utilities
- 35 Acer GridVista (dual-display compatible)
- 36 Launch Manager
- 37 Hardware Specifications and Configurations
- 45 System Utilities
- 45 BIOS Setup Utility
- 46 Navigating the BIOS Utility
- 47 Information
- 48 Main
- 50 Security
- 54 Boot
- 55 Exit
- 56 BIOS Flash Utility
- 57 Machine Disassembly and Replacement
- 58 General Information
- 58 Before You Begin
- 59 Disassembly Procedure Flowchart
- 61 Removing the Battery Pack
- 62 Removing the HDD Module/ODD Module/Memory/Wireless LAN Card/ Keyboard and the LCD Module
- 62 Removing the HDD Module
- 63 Removing the ODD Module
- 63 Removing the Memory
- 63 Removing the Wireless LAN Card
- 64 Removing the Keyboard and LCD Module
- 66 Disassembling the Main Unit
- 66 Separate the Main Unit Into the Upper and the Lower Case Assembly
- 66 Disassembling the Lower Case Assembly
- 67 Disassembling the Upper Case Assembly
- 68 Disassembling the Main Board
- 70 Disassembling the LCD Module
- 71 Disassembling the External Modules
- 71 Disassembling the HDD Module
- 71 Disassembling the ODD Module
- 73 Troubleshooting
- 74 System Check Procedures
- 74 External Diskette Drive Check
- 74 External CD-ROM Drive Check
- 74 Keyboard or Auxiliary Input Device Check
- 75 Memory check
- 75 Power System Check
- 77 Touchpad Check
- 78 Power-On Self-Test (POST) Error Message
- 79 Index of Error Messages
- 82 Phoenix BIOS Beep Codes
- 86 Index of Symptom-to-FRU Error Message
- 89 Intermittent Problems
- 90 Undetermined Problems
- 91 Jumper and Connector Locations
- 91 Top View
- 92 Bottom View
- 93 FRU (Field Replaceable Unit) List
- 94 Aspire 4720G/4720Z/4720/4320 Exploded Diagram