ASUS l8400 Service Manual

DISASSEMBLY PROCEDURE

3

A

Disassembly Procedure

Please follow the information provided in this section to perform
the complete disassembly procedure of the notebook. Be sure to
use proper tools described before.

SUS L8400 B (ID1) Series Notebook consists of various modules. This
chapter describes the procedures for the complete notebook disassembly.
In addition, in between procedures, the detailed disassembly procedure of
individual modules will be provided for your service needs.

Chapter

The disassembly procedure consists of the following steps:

• Battery module

• Keyboard, Memory and Function Cap

• CPU Module

• LCD Module

• Palm Rest Module

• HDD Module

• Top Case Module

• Bottom Case Module

• Motherboard Module

• FDD-Module

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DISASSEMBLY PROCEDURE

1

BATTERY

Battery module

The illustration below shows how to remove the battery module.

1. Turn the notebook over. Unlock and hold the latch (no.1), and firmly slide the

other latch (no.2) to the top and remove the battery.

2

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DISASSEMBLY PROCEDURE

K/B & F/C

K/B REMOVAL

Keyboard and Function Cap

The illustration below shows how to remove the keyboard plate and the Function Cap.

Removing Keyboard plate

1. Open the display panel.

2. Push the three latches in (no. 1) with a pair of tweezers or a single-slotted

screwdriver and lift the keyboard plate up.

3. Lay the keyboard down over the TouchPad module. Do not remove the

keyboard yet. The keyboard cable is still attached.

MEMORY

REMOVAL

CABLE

REMOVAL

Removing Memory module

The L8400 B (ID1) Series Notebook comes standard with 64MB of RAM onboard.
There is one expansion SODIMM socket for you to upgrade the total memory up to
192MB with a 128MB module

1. If there is an existing memory, remove it by opening the latches (no. 2), which will
pop the module up to a 45° angle, and then pulling out the module in that angle

(no. 3).

Removing Keyboard Cable

2. Use a flexible connector tool to unlock the cable connector on both ends (no. 1).

3. Carefully pull out the keyboard cable (no. 2) with a pair or tweezers.

4. Lock the connector (no. 3) again to avoid possible breakage.

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DISASSEMBLY PROCEDURE

1. Unlock

2. Cable out

3. Lock

1. Unlock

3. Lock

5. Finally the keyboard plate can be removed from the notebook.

FUNCTION

CAP

REMOVAL

Removing Function Cap

1. Remove 2 screws (no.1, M2*3L(K)B-NI) from the top case.

2. Pull up and remove the Function Cap from the top case (no.2).

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DISASSEMBLY PROCEDURE

CPU

CPU

REMOVAL

CPU Module

The illustrations below show how to remove the CPU module from the notebook.

Please do not disassemble the module.

Removing CPU

1. Disconnect the CPU fan cable.

2. Remove 4 screws (no.1, M2*3L(K)W-NI).

3. Remove the CPU Thermal Module from motherboard.

4. Remove 2 screws (no.2) to separate the CPU fan from CPU thermal module

There are two types of CPU sockets.

First, the Molex socket.

5. Unlock the CPU socket (no. 1) with a Molex CPU socket tool, i.e., the arrow
points to the straight left.

6. Turn the non-removable screw here 180 degree counter-clockwise to loosen the
CPU.

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DISASSEMBLY PROCEDURE

No.1

No.2

ock

L

OLOLO

Unluck the
CPU

Lock the CPU

No.1

No.2

Unl

Second, the AMP socket.

5. Unlock the CPU socket (no. 1) with a AMP CPU socket tool,

6. Turn the non-removable screw here in counter-clockwise direction until you hear

the click to loosen the CPU.

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DISASSEMBLY PROCEDURE

7. Use the CPU vacuum to “suck up” the CPU and lift the CPU away. (no. 2).

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DISASSEMBLY PROCEDURE

No.1

No.2

No.3

No.4

LCD

LCD

REMOVAL

LCD Module

The illustrations below show how to remove and disassemble the LCD module. The
module contains LCD panel, invert, LCD hinge bracket, hinge cover, LCD front cover

and LCD bottom case. Please do not disassemble the individual parts.

Removing LCD Module

1. With the display panel opened at a 45° angle, remove the two hinge covers (one
of each side, no. 1) by sliding them out with a single-slotted screwdriver.

2. Remove 4 screws (no.1, M2.5*8L(B)B-NI) from the hinge feet.

No.1

3. Remove 2 screw (no. 1, M2*12L(K)B-NI, no.2, M2*3L(K)W-NI) that secures the
LCD cable to disconnect the LCD cable (no. 3) and the inverter cable (no. 4) from
the motherboard.

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