asus Eee PC 4G (701) Service Manual

Service overview

T

Chapter

Service Overview

Carefully read through this chapter for a look at various components of
the Eee PC 4G (701) and necessary cautions and tools before performing
any service and repairs.

o provide the best service and support for the ASUS Eee PC 4G (701), we have
provided the below information for technicians from distributors and resellers to
perform the complete disassembly and assembly. But before performing the procedures,
please be sure to read through the overview in this chapter for component overview,

cautions and tools to avoid any unwarranted damages to the hardware.

The following chapter includes:

• Eee PC 4G (701) Overview

• Components

• Precautions

• Appropriate Tools

1-1

Service overview

Eee PC 4G (701) Overview and Components

The ASUS Eee PC 4G (701) is a product combining the power of Intel® Mobile
Processor. In this section, an overview for the Eee PC 4G (701), along with its
components, will be presented.

OVERVIEW

Eee PC 4G (701) Ov erview

The illustrations below show the overview from front view, right side view, left side
view, and rear side view. Most of the parts will be discussed in this manual.

Camera

LCD Panel

LCD Bezel

Keyboard Power switch

Touchpad

LED status indicator

1 – 2

Service overview

LAN port

USB (2.0) ports

SPDIF/Headphone

Modem port

Air Vents

Microphone port

USB (2.0) ports

VGA port

Card reader

Front view

Battery Pack

Kensington Lock

DC-IN

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Service overview

COMPONENTS

LCD

INVERTER

BOARD

MODULE

Components

The illustrations below show the components of the Eee PC 4G (701).

LCD Panel
The illustration below shows the LCD display panel. The Eee PC 4G (701) comes with 7” TFT
LCD Panel.

Inverter Board

The illustration below shows the inverter board, which is hidden underneath the lower edge of
the LCD front bezel.

LCD HINGE

LCD Hinge

The illustration below shows the LCD Hinges.

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Service overview

LCD CASE

KEYBOARD

LCD Case

The illustration below shows the LCD case. Here is the LCD front cover, back cover.

Keyboard

The illustration below shows the keyboard plate. It can be exchanged with keyboard plates with
different language layouts, such as U.S., France and others.

TOP CASE&

Top Case Module

The illustration below shows the top case of the Eee PC 4G (701).

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TOUCHPAD

BATTERY

Service overview

Touch Pad Module

The illustration below shows the Touch Pad module, top and bottom view.

Battery Pack

The illustration below shows the battery packs of the Eee PC 4G (701). It’s located at bottom of
the EEE PC 4G (701).

MEMORY

Memory Module

The illustration below shows the memory module for the Eee PC 4G (701).

1 - 6

Service overview

MOTHER

BOARD

MODULE

BOTTOM CASE

Motherboard Module

The illustration below shows the motherboard module of the Eee PC 4G (701).

Bottom Case Module

The illustration below shows the bottom case module of the Eee PC 4G (701), top and bottom
view.

WIRELESS

LAN MODULE

Wireless LAN Module

The illustration below shows the Wireless LAN Module of the Eee PC 4G (701). It
contains Wireless LAN Card.

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Service overview

Service Overview

Please pay special attention to the cautions below to prevent any damages to the Eee PC 4G (701)
and also please be sure to select the appropriate tools described in this section to perform any
services desired.

CAUTIONS

Precautions

Before you perform any service and or repair on the Eee PC 4G (701), please follow the steps
below first.

1. Be sure that the Eee PC 4G (701) is powered down.

2. Disconnect the AC plug from the Eee PC 4G (701)

3. Turn the Eee PC 4G (701) over. Unlock latch 1 towards the direction of arrow and then
unlock and hold the latch 2 to remove the battery.

2

1

4. Remove all rings, watches and any other metal objects from your hands.

1 - 8

Service overview

5. Always wear a ground strap on your hand to protect the Eee PC 4G (701) from static

discharge.

TOOLS

CROSS

SCREW-

DRIVER

FLATHEAD

SCREW-

DRIVER

TWEEZERS

Appropriate T ools

The illustrations below show the appropriate tools that should be used for the Eee PC 4G (701)’s
service and repair.

Phillips-head Screwdriver

Use a Phillips-head screwdriver to fasten/remove the K- or B-typed screws.

Single-Slotted Screwdriver

Use a single-slotted screwdriver to lock/unlock the flexible cable connector locks

Tweezers

Use a pair of tweezers to remove/insert flexible cables.

INSERTION

EXTRACTION

TOOL FOR

CONNECTOR

VACUUM

HANDLING

TOOL

AND

FPC

Insertion and extraction tool for FPC connector

Use insertion and extraction tool for FPC connector to handle locking and unlocking of FPC
connectors.

Vacuum Handling Tool

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Service overview

DISASSEMBLY

CAUTIONS

Disassembly Cautions

Before you perform any service and or repair on the Eee PC 4G (701), please read the notice
below first.

ASUS hereby provides a basic instruction for the disassembly of ASUS products, i.e. to remove
components and materials that require selective treatments, which are defined by Annex II of the
European Union (EU) Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC.
This instruction is intended for the use of end-of-life recyclers or treatment facilities. Following is
the list of Annex II of EU WEEE Directive 2002/96/EC.

- polychlorinated biphenyls (PCB) containing capacitors in accordance with Council Directive
96/59/EC of 16 September 1996 on the disposal of polychlorinated biphenyls and
polychlorinated terphenyls (PCB/PCT),

- mercury containing components, such as switches or backlighting lamps,

- batteries,

- printed circuit boards of mobile phones generally, and of other devices if the surface of the
printed circuit board is greater than 10 square centimetres,

- toner cartridges, liquid and pasty, as well as colour toner,

- plastic containing brominated flame retardants,

- asbestos waste and components which contain asbestos,

- cathode ray tubes,

- chlorofluorocarbons (CFC), hydrochlorofluorocarbons (HCFC) or hydrofluorocarbons (HFC),
hydrocarbons (HC),

- gas discharge lamps,

- liquid crystal displays (together with their casing where appropriate) of a surface greater than
100 square centimeters and all those back-lighted with gas discharge lamps,

- external electric cables,

- components containing refractory ceramic fibres as described in Commission Directive
97/69/EC of 5 December 1997 adapting to technical progress Council Directive 67/548/EEC
relating to the classification, packaging and labelling of dangerous substances,

- components containing radioactive substances with the exception of components that are
below the exemption thresholds set in Article 3 of and Annex I to Council Directive
96/29/Euratom of 13 May 1996 laying down basic safety standards for the protection of the
health of workers and the general public against the dangers arising from ionising radiation,

- electrolyte capacitors containing substances of concern (height > 25 mm, diameter > 25 mm or
proportionately similar volume)

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Disassembly procedure

A

Chapter

Disassembly Procedure

Please follow the information provided in this section to perform the complete
disassembly procedure of the Eee PC 4G (701). Be sure to use proper tools
described before.

SUS Eee PC 4G (701)consists of various modules. This chapter describes the procedures
for the complete Eee PC 4G (701) 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

• Memory Module

• Keyboard Module

• WLAN Module

• Top Case Module

• LCD Module

• Motherboard Module

2 - 1

Disassembly procedure

BATTERY

Battery Module

The illustration below shows how to rem ove the batte ry modul e.

Remove battery module

1．Slide the battery lock to open it
2．Slide the battery latch and hold the battery to remove it from system.

1

MEMORY

MODULE

Memory Module

The illustration shows how to remove the memory mod ule form the Eee PC 4G (701).

Removing Memory module

1. Remove 2 screws (M2*4) on the memory cover then remove it from the system.

MEMORY

REMOVAL

2 - 2

Disassembly procedure

2. Softly open the two latches to pop the memory module up at 45 degree angles and then remove

the memory at that angle.

Keyboard Module

KEYBOARD

MODULE

REMOVAL

The illustration of below shows how t o remove the ke yboard

Removing Keyboard

1. Turn over the NB and push the 3 latches (F1; F6;Pause) on keyboard module to lift the keyboard
plate.

2 - 3

Disassembly procedure

2. Place the keyboard plate on the top case and disconnect the keyboard FPC to remove.

Removing Keyboard Cable

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

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

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

2. Cable out

TOP CASE

MODULE

TOP CASE

REMOVAL

1. Unlock

3.

1. Unlock

3.

T op Case Module

The illustrations below show how to disassemble and remove the top case module of the Eee PC
4G (701). The module contains the top case itself.

Removing Top Case Module

1. Disconnect the touch pad FPC and then remove 9 screws (M2*4) on top case.

2 - 4

Disassembly procedure

2. Close and turn the system upside down to remove 6 screws (M2*4) on the bottom case.

3. Softly pry the four sides of the system to open the latch hooks securing the top case with

bottom case, then remove the top case.

2 - 5

Disassembly procedure

4. Remove 1 piece of tape on the touch pad FPC then open the latch to disconnect it from touch

pad board.

5. Remove 2 screws (M2*3) securing touch pad bracket and then remove the bracket.

6. Remove the touch pad board from the top case.

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Disassembly procedure

WLAN

MODULE

WLAN

MODULE

REMOVAL

WLAN Module

The illustrations below sho w how to remove the WLAN modul e from the Ee e PC 4G (70 1).

Remove WLAN module

1. Remove 3 pieces of tape fixing the cable and then disconnect the following 4 cables,

namely speaker cable, CMR cable, Fan cable, LVDS cable.

Speaker cable

Camera cable Fan cable

LVDS cable

2. Remove 1 piece of tape fixing the microphone cable and disconnect the microphone

cable from the mother board, and then take the microphone module away.

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Disassembly procedure

3. Lift the mother board from bottom case by softly separating from the bottom side, two

sides to the top.* pay attention not to remove the mother board for now, for that the WLAN

antenna is still connected with the mother board.

4. Turn the LCD with its back cover on the platform and hold the mother board while
disconnecting the two antennas.

5. Remove the mother board from the bottom case.

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MOTHER

BOARD

MOTHERBOARD

REMOVAL

Disassembly procedure

6. Remove 2 screws (M2*4) on the WLAN module to pop up the module at 30 degree angles and
then remove it at that angle.

Motherboard

The illustrations below show how to disassemble and remove the Motherboard.

Removing Motherboard

1. Tear off 2 pieces of tape fixing the Modem cable and disconnect the Modem cable from

mother board.

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Disassembly procedure

2. Remove two screws (M2*3) securing the Modem module and then remove it from the mother

board.

3. Remove 2 screws screwing the LCD hinges and then take the LCD display away.

4. Remove 1 piece of tape and 3 screws (M*4) securing the Fan module and then take the Fan

module away.

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Disassembly procedure

LCD MODULE

LCD MODULE

DISASSEMBLY

LCD Module

The illustrations below show how to remove and disassemble the LCD module. The
module contains LCD panel, Inverter board, LCD bezel, LCD back cover.

Disassembling LCD Module

1. Remove 8 rubber pads and screws (M2*4) on LCD front bezel.

2. Pry the four inner sides of LCD front bezel and separate it from LCD module.

3. Remove 2 screws (M2*4) on each LCD hinge and remove both hinges.

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Disassembly procedure

4.Unscrew 4 (M2*4) screws securing the inverter board and then take the LCD panel
together with the inverter board away from LCD back cover .

5. Disconnect the inverter cable, LCD FPC cable from inverter board and take the board
away.

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Disassembly procedure

6. Disconnect the coaxial cable from inverter board.

7. Tear off 1 piece of tape fixing camera cable and take the camera cable off cable guide.

8. Remove the camera board from LCD back cover and then take the whole module away.

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Disassembly procedure

9. Take the WLAN antennas off cable guides and remove the antennas together with its tape
from LCD back cover.

10. Take the speaker cables off cable guides and remove both speakers from their slots.

2 - 14

Assembly procedure

A

Chapter

Assembly Procedure

Please follow the information provided in this section to perform the complete
assembly procedure of the Eee PC 4G (701). Be sure to use proper tools
described before.

fter you have completed the previous chapter of complete disassembly, please follow this
chapter to assemble the Eee PC 4G (701) back together. This chapter describes the
procedures of the complete Eee PC 4G (701) assembly. In addition, in between
procedures, the detailed assembly procedure of individual modules will be provided for

your service needs.

The assembly procedure consists of the following steps:

• LCD Module

• Motherboard Module

• Top Case Module

• WLAN Module

• Keyboard Module

• Memory Module

• Battery Module

3 - 1

Assembly procedure

LCD MODULE

LCD Module

The illustrations below show how to assemble and install the LCD module of the Eee
PC 4G (701).

1. Install the two speakers on LCD back cover and arrange the speaker cable well through cable

guide.

2. Assembly the black and white antennas on LCD back cover and well arrange the antanna cables
through cable guides.

3 - 2

Assembly procedure

3. Install the camera board on LCD back cover, pay attention to the aiming pole.

4. Connect the coaxial cable with inverter board.

5. Connect the inverter cable, LCD FPC cable with inverter board.

3 - 3

Assembly procedure

6. Install the LCD panel together with the inverter board on LCD back cover and then secure 4
screws (M2*4) on it.

7. Assemble both hinges and secure 2 screws (M2*4) on each.*pay attention to differences
between the left and right.

8. Install the LCD front bezel on LCD back cover and press the sides to fix them well.

3 - 4

Assembly procedure

9. Secure 6 screws (M2*4)on LCD front bezel and then fix 6 rubber pads on it.

MOTHERBOARD

MOTHERBOARD

ASSEMBLY

Motherboard

The illustrations below show how to assemble and install the motherboard of the Eee
PC 4G (701).

1. Install the Fan module on bottom case, secure 3 screws on it and fix 1 piece of tape on the cable.

2. Hold the LCD to fix its hinges on bottom case and then secure 2 screws(M2*4).

3 - 5

Assembly procedure

3. Connect the Modem module with the mother board and then secure 2 scews (M2*3) .

4. Connect the Modem cable with the mother board and then arrange the cable to fix 2 pieces
of tape on it.

3 - 6