Acer Aspire 4741 User manual

Aspire 4741 Series

Service Guide

PRINTED IN TAIWAN

Service guide files and updates are available

on the ACER/CSD web; for more information,

please refer to http://csd.acer.com.tw

Chapter 3 27

This chapter contains step-by-step procedures on how to disassemble the notebook computer for

maintenance and troubleshooting.

Disassembly Requirements

To disassemble the computer, you need the following tools:

•Wrist grounding strap and conductive mat for preventing electrostatic discharge

•Flat screwdriver

•Philips screwdriver

•Hex screwdriver

•Plastic flat screwdriver

•Plastic 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.

Chapter 3

Machine Disassembly and Replacement

28 Chapter 3

General Information

Pre-disassembly Instructions

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. Place the system on a flat, stable surface.

4. Remove the battery pack.

Disassembly Process

The disassembly process is divided into the following stages:

•External module disassembly

•Main unit disassembly

•LCD module disassembly

The flowcharts provided in the succeeding disassembly sections illustrate the entire disassembly sequence.

Observe the order of the sequence to avoid damage to any of the hardware components. For example, if you

want to remove the main board, you must first remove the keyboard, then disassemble the inside assembly

frame in that order.

Main Screw List

Item Screw Color Part No.

A M2.5 x L5 Black 86.00F87.735

B M2 x L3 Black 86.00F80.723

C M3 x L4 Silver 86.9A524.4R0

D M2.5 x L4 Silver 86.00H36.534

E M2.5 x L6 Black 86.00E12.536

Chapter 3 29

External Module Disassembly Process

External Modules Disassembly Flowchart

The flowchart below 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 main

board, you must first remove the keyboard, then disassemble the inside assembly frame in that order.

Item Screw Color Part No.

B M2 x L3 Black 86.00F80.723

C M3 x L4 Silver 86.9A524.4R0

E M2.5 x L6 Black 86.00E12.536

30 Chapter 3

Removing the Battery Pack

1. Turn base unit over.

2. Slide the battery lock/unlock latch to the unlock position.

3. Slide the battery release latch to the release position to pop out the battery pack, then remove the battery

pack from the main unit.

Note: Battery has been highlighted with the yellow circle as above image shows. Please detach the

battery and follow the local regulations for disposal.

Chapter 3 31

Removing the SD Dummy Card

1. Push the SD dummy card all the way in to eject it.

2. Pull SD dummy card out from the slot.

32 Chapter 3

Removing the Back Cover

1. See “Removing the Battery Pack” on page 30.

2. See “Removing the SD Dummy Card” on page 31.

3. Remove the four captive screws securing the back cover.

4. Use a flat screwdriver to pry open the back cover and detach it from the lower case.

Chapter 3 33

Removing the DIMM Modules

1. See “Removing the Battery Pack” on page 30.

2. See “Removing the SD Dummy Card” on page 31.

3. See “Removing the Back Cover” on page 32.

4. Push out the latches on both sides of the DIMM socket to release the DIMM modules.

5. Remove the DIMM modules.

34 Chapter 3

Removing the Hard Disk Drive Module

1. See “Removing the Battery Pack” on page 30.

2. See “Removing the SD Dummy Card” on page 31.

3. See “Removing the Back Cover” on page 32.

4. See “Removing the DIMM Modules” on page 33

5. Remove the one screw (B) securing the hard disk drive module.

6. Lift the hard disk drive module and remove it from the hard disk drive bay.

NOTE: To prevent damage to device, avoid pressing down on it or placing heavy objects on top of it.

Size (Quantity) Color Torque Part No.

M2 x L3 (1) Black 1.6 kgf-cm 86.00F80.723

Chapter 3 35

7. Remove the two screws (C) securing the hard disk to the bracket and remove the hard disk from the

bracket.

Size (Quantity) Color Torque Part No.

M3 x L4 (1) Silver 3.0 kgf-cm 86.9A524.4R0

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