System Disassembly

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Chapter 3

This chapter provides step-by-step instructions on how to disassemble the notebook computer for maintenance and troubleshooting purposes.

Disassembly Tools

In performing the disassembly process, you will need the following tools:

  • Wrist-grounding strap and conductive mat for preventing electrostatic discharge
  • Philips screwdriver
  • Flat screwdriver
  • Hex screwdriver
  • Flat plastic screwdriver
  • Plastic tweezers

Stages of the Disassembly Process

The disassembly process is divided into three stages:

  1. External modules disassembly
  2. Main unit disassembly a. Upper case disassembly b. Lower case disassembly
  3. LDC module disassembly

IMPORTANT: The disassembly procedure described in this chapter is a gradual process, as illustrated in the flowcharts preceding each disassembly stage section. This means that users need to observe the instructions in a step-by step manner. To illustrate, removing the HDD assembly will require that you first remove the battery pack and the stylus. Failure to observe the gradual flow of the process may result in component damage.

NOTE: To reinstall the system components and assemble the unit, perform the disassembly procedures in reverse.

Equivalent Torque Values

Torque values indicated in this chapter are expressed in kgf-cm (kilogram force-centimetre). For equivalent values in in-lb (inch-pound force) and Nmm (milli Newton meter), refer to the table below.

Torque Units

kgf-cm

in-lb

Nmm

Torque values

1.6

1.39

156.91

3

2.60

294.21

4

3.47

Listed below are the screw types used in this system, plus their corresponding part numbers.

NOTE: The screws for the different components vary in size. During the disassembly process, group the screws with their corresponding components to avoid mismatches when putting back the components.

Screw

Type

Color

Part Number

A

M2 x L8BZN+NYLOK

Black

86.00D75.220

B

M2 x L4 BZN

Black

86.00A02.140

C

M2.5 x L8 BZN+NYLOK

Black

86.00E34.738

D

M2 x L4 BZN+NYLOK

Black

86.00E13.524

E

M3 x L4

Silver

86.9A554.4R0

F

M2 x L3BZN+NYLOK

Black

86.00E25.723

G

M2 x L2.5 BZN+NYLOK

Black

86.00D72.620

H

M2.5 x L12 BZN+NYLOK

Silver

86.00E67.63C

I

M2.5 x L4 BZN+NYLOK

Black

86.00D30.630

J

M2.5 x L6 BZN+NYLOK

Black

86.00E33.736

K

M2 X L2 NI

Silver

86.00D77.320

L

M2.5 x L5 BZN+NYLOK

Black

86.00F19.735

M

M2.5 x L3 BZN+NYLOK

Black

86.00D52.630

Pre-disassembly Procedure

Before proceeding with the disassembly procedure, perform the steps listed below:

  1. Turn off the power to the computer and all peripherals.
  2. Unplug the power cord from the computer.
  1. Unplug all peripheral cables from the computer.
  2. Close the notebook lid and place the computer on a flat, steady surface.

External Modules Disassembly

External Modules Disassembly Flowchart

Turn off computer and disconnect power cord

SD dummy card

EXpressCard dummy card

Battery pack

DIMM

WLAN board (Dx2)

HDD assembly

ODD assembly

Hard drive shielding (Ex2)

ODD bracket (Cx1)

Heat sink (Dx4, Gx5)

1

1

1

Hard drive module

ODD module (Fx2)

Processor

VGA board (Fx2)

Screw

Type

Part Number

A

M2 x L8BZN+NYLOK

86.00D75.220

B

M2 x L4 BZN

86.00A02.140

C

M2.5 x L8 BZN+NYLOK

86.00E34.738

D

M2 x L4 BZN+NYLOK

86.00E13.524

E

M3 x L4

86.9A554.4R0

F

M2 x L3BZN+NYLOK

86.00E25.723

G

M2 x L2.5 BZN+NYLOK

86.00D72.620

Removing the SD Dummy Card

1. Push against the card, as if you were pushing it further into the slot, letting the card spring out.

2. Pull the SD dummy card out of its slot.

Travelmate 5330 Pccardslot

Removing the PC Card Dummy Card

1. Press the PC card slot eject button to pop it out, then press it again to eject the dummy card.

Acer Aspire Card Slot

2. Pull the PC Card dummy card out of its slot.

Extensa 5630ez Express Card Slot

Removing the Battery Pack

  1. Turn the unit over with the base facing upward.
  2. Slide the battery lock to the unlock position.
Acer Travelmate 5735z Bios Battery

3. Slide and hold the battery release latch, then remove the battery pack from its bay.

Removing the Lower Case Cover

1. Remove the screws securing the lower case cover.

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Step

Type

Quantity

Color

Torque

1

M2 x L8 BZN+NYLOK

1

Black

1.6 kgf-cm +/-15%

M2 x L4 BZN

4

Black

1.6 kgf-cm +/-15%

  1. Pry the lower case cover from the main unit, then remove it.
  2. Pry the lower case cover from the main unit, then remove it.

Removing the Memory Modules

1. Push out the latches on both sides of the exterior DIMM slot (DM1).

Extensa 5635z Ram Slot

2. Remove the memory module from its slot.

Acer Extensa 5220 Second Ram Slot

3. Repeat steps 1 and 2 to remove the second memory module.

Removing the WLAN Board

1. Peel off the end of the bar code tape securing the WLAN antennas.

2. Disconnect the antennas from the WLAN board, then move them away from the board.

8460p Manual

3. Remove the screws securing the WLAN board.

Step

Type

Quantity

Color

Torque

3

M2 x L4 BZN+NYLOK

2

Silver

1.6 kgf-cm +/-15%

  1. Remove the WLAN board from its slot (MINIC1).
  2. Remove the WLAN board from its slot (MINIC1).

Removing and Dismantling the HDD Assembly

1. Use the clear plastic tab and the black mylar tape to disconnect the HDD assembly from its connector (SATA).

Remove the HDD assembly from the main unit.

Acer Travelmate 630 Hdd Adapter

4. Remove the screws on the HDD module shielding.

Step

Type

Quantity

Color

Torque

4

M3 x L4

2

Silver

3 kgf-cm +/-15%

5. Remove the shielding from the HDD module.

Removing and Dismantling the ODD Assembly

1. Remove the screw securing the ODD assembly to the main unit.

Step

Type

Quantity

Color

Torque

1

M2.5 x L8

1

Black

3 kgf-cm +/-15%

  1. Use a plastic flat screwdriver to push the ODD assembly out of the main unit.
  2. Use a plastic flat screwdriver to push the ODD assembly out of the main unit.
Push And Peel System

3. Pull the ODD assembly out of its bay.

4. Remove the screws securing the ODD bracket.

Step

Type

Quantity

Color

Torque

4

M3 x L4

2

Silver

3 kgf-cm +/-15%

  1. Detach the ODD bracket from the module.
  2. Detach the ODD bracket from the module.
Odd Bracket

Removing the Processor Cooling Fan

1. Disconnect the fan cable from its system board connector (FAN1).

Cooling System Aspire 8930

Step

Type

Quantity

Color

Torque

2

M2 x L4 BZN+NYLOK

2

Black

1.6 kgf-cm +/-15%

  1. Peel off the aluminum tape on the top edge of the cooling fan.
  2. Peel off the aluminum tape on the top edge of the cooling fan.
Aluminum Tape Cooling

4. Remove the cooling fan from the main unit.

Acer Extensa 5635z Fan Cooling

Removing the Heat Sink

1. Remove the screws securing the heat sink.

Step

Type

Quantity

Color

Torque

1

M2 x L2.5 BZN+NYLOK

5

Silver

1.6 kgf-cm +/-15%

  1. Carefully pull the heat sink from the unit base, then remove it from the system board.
  2. Carefully pull the heat sink from the unit base, then remove it from the system board.

Removing the Processor

1. Use a flat screwdriver to turn the processor socket lock to the counter-clockwise to the unlock position (note the unlock icon).

Travelmate 5330 Processor

2. Hold the processor by its edges and remove it from its socket (U52).

IMPORTANT: When installing a processor, note the golden arrow on the corner to make sure the processor is properly oriented over the socket. Refer to the figure above.

Main Unit Disassembly

IMPORTANT: To prevent from scratching or damaging the LCD panel, cover it with a protective film before disassembling the main unit.

Main Unit Disassembly Flowchart

Unit Travel

Screw

Type

Part Number

C

M2.5 x L8 BZN+NYLOK

86.00E34.738

D

M2 x L4 BZN+NYLOK

86.00E13.524

F

M2 x L3BZN+NYLOK

86.00E25.723

H

M2.5 x L12 BZN+NYLOK

86.00E67.63C

I

M2.5 x L4 BZN+NYLOK

86.00D30.630

J

M2.5 x L6 BZN+NYLOK

86.00E33.736

K

M2 X L2 NI

86.00D77.320

Removing the Middle Cover

  1. Open the LCD panel completely to facilitate the easy removal of the middle cover.
  2. Use a plastic flat screwdriver to pry open the outer edge of the cover, then continue prying on the hinge sides until the cover is released from the U-case.

3. Remove the middle cover from the main unit.

Acer Extensa 5635g Keyboard Change

Removing the Keyboard

1. Remove the screws securing the keyboard.

Replace Keyboard 6930g

Step

Type

Quantity

Color

Torque

1

M2 x L2.5 BZN+NYLOK

2

Silver

1.6 kgf-cm +/-15%

2. Detach the top edge keyboard from the upper case, then turn it over the palmrest to gain access to the keyboard cable.

3. Disconnect the keyboard cable from its system board connector (KB1) to completely detach the keyboard from the main unit.

Wlan Peel Off

Removing the LCD Module

1. Peel off the silver acetic tape protecting the LCD cable.

Kabel Lcd Acer Ao532h

Disconnect the LCD cable from its system board connector (LCD1).

3. Peel off the masking tape securing the WLAN and internal microphone cables to the U-case.
Aspire 5732z Microphone

5. Pull out the WLAN antennas from underneath the computer base, and then release them from their U-case latches.

6. Disconnect the internal microphone cable from its system board connector (INTMIC1).
Aspire 5536 Wlan Antenna Cable

7. Release the internal microphone cable and the <main or aux??> WLAN antenna (white) from their U-case latches.

Acer Aspire 4520 Main Aux
  1. Close the computer lid and turn the unit over to the base side.
  2. Remove the lower case screws securing the LCD module.

Step

Type

Quantity

Color

Torque

10

M2.5 x L8 BZN+NYLOK

2

Black

Step

Type

Quantity

Color

Torque

12

M2.5 x L12 BZN+NYLOK

2

Silver

4 kgf-cm +/-15%

13. Detach the LCD module from the main unit.

Proceed to page 57 for instructions on how to disassemble the LCD module.

Turn the unit right side up and open the notebook lid again. Remove the hinge screws securing the LCD module.

Removing the Upper Case

1. Disconnect the following system cables from their board connectors. * Notebook lid cable (LID1)

* Fingerprint board cable (FP1)
* Touchpad board cable (TPAD1)
Acer Aspire 5560 Tpad1
* LED board cable (LEDB1)
  1. Turn the unit over to the base side.
  2. Remove the lower case screws securing the upper case.
Dell Inspiron 5555 Internal

Step

Type

Quantity

Color

Torque

3

M2.5 x L4 BZN+NYLOK

11

Black

3 kgf-cm +/-15%

  1. Turn the unit over again and remove the single top upper case screw.
  2. Turn the unit over again and remove the single top upper case screw.

Step

Type

Quantity

Color

Torque

4

M2.5 x L4 BZN+NYLOK

1

Silver

3 kgf-cm +/-15%

5. Detach the upper case from the lower case.

Removing the LED Board

  1. Locate the LED board on the upper case underside.
  2. Remove the screw securing the LED board.

Step

Type

Quantity

Color

Torque

2

M2 x L3 BZN+NYLOK

1

Silver

1.6 kgf-cm +/-15%

3. Peel off the LED board cable from the upper case, then grasp the LED board and pull the cable through its upper case opening.

4. Disconnect the LED board cable from its board connector.

Removing the Fingerprint and Touchpad Boards

1. Disconnect the fingerprint board cable.

2. Detach the fingerprint board cable from the upper case.

3. Disconnect the touchpad board cable.

4. Detach the fingerprint board cable from the upper case.

5. Remove the screws securing the fingerprint board bracket.

How Disassemble Acer 4220

Step

Type

Quantity

Color

Torque

5

M2 x L4 BZN+NYLOK

4

Silver

1.6 kgf-cm +/-15%

  1. Detach the fingerprint board bracket from the upper case.
  2. Detach the fingerprint board bracket from the upper case.
Acer Travelmte 4220 Sound Connector

Step

Type

Quantity

Color

Torque

7

M2 x L4 BZN+NYLOK

2

Silver

1.6 kgf-cm +/-15%

8. Detach the fingerprint board from its bracket.

9. Carefully pry loose the touchpad board from the upper case to detach it.

CAUTION: The touchpad board is glued to the upper case. Remove the touchpad board only if it is defective.

Removing the Card Reader Board

1. Remove the screws securing the card reader board to the system board.

Step

Type

Quantity

Color

Torque

1

M2 x L3 BZN+NYLOK

2

Silver

1.6 kgf-cm +/-15%

2. Detach the card reader board from its connector (CRB1).

Travelmate 5735 Touchpad Repair

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The Ultimate Computer Repair Guide

The Ultimate Computer Repair Guide

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