Asus L8400 User manual

DISASSEMBLY PROCEDURE
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Chapter
3
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.
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
A

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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.
BATTERY
1
2

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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.
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.
K/B REMOVAL
K/B & F/C
CABLE
REMOVAL
MEMORY
REMOVAL

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5. Finally the keyboard plate can be removed from the notebook.
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).
1. Unlock
2. Cable out
3. Lock
1. Unlock
3. Lock
FUNCTION
CAP
REMOVAL

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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.
CPU
REMOVAL
CPU

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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.
No.1
No.2
Unl
ock
L
O
L
O
L
O
Unluck the
CPU
Lock the CPU
No.1
No.2

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

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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.
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.
LCD
LCD
REMOVAL
No.1
No.1
No.2
No.3
No.4

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4. Lift straight up the LCD panel from the system.
Disassembling LCD Module
1. Remove 3 rubber pads along the lower edge of the LCD module (no. 1) and 3
screws underneath them.
2. Remove 2 rubber pads along the upper edge of the LCD module (no. 2) and 2
screws underneath them.
3. Carefully pry the inside edges of the LCD case open on all four edges (no. 3) with
your fingers. Then, lift it away from the LCD module.
4. Remove 4 screws (no.1, M2.5*6L(B)B-NI).
5. Disconnect the inverter cable (no. 2) and lift the inverter away from the LCD
module (no. 3).
6. Remove 4 screws (no.4, M2*3L(K)W-NI) to separate the LCD panel from the
LCD bottom case
7. Remove the panel from the LCD bottom case and remove 4 screws (no.5,
M2*3L(K) W-NI) on both sides to separate the LCD hinge brackets from the
panel.
LCD DIS-
ASSEMBLY
No.1

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