Toshiba Satellite m100 Service Manual part1

4.1 General 4 Replacement Procedures

4

4.1 General

This section explains how to disassemble the computer and replace Field Replaceable Units
(FRUs). It may not be necessary to remove all the FRUs in order to replace one. The chart
below is a guide to which FRUs need to be removed in order to remove others. Always start by
removing the battery pack, next, optional items such as the optional PC card, optional mini PCI
card and optional memory module, then follow the line on the chart to determine which FRU
you must remove next in order to repair the one you think is causing the computer to operate
improperly. Refer to the example at the bottom of the page.

How to See the Chart

Two examples of referring to
the chart are shown below.

•Removing the Sound/FIR
Board.

The HDD, Slim Select Bay
Options, Wireless LAN Card,
RTC battery, keyboard,
Memory Modules, IPS board
and Palm Rest must be
removed before removing the
Sound/FIR board.

•Removing the LCD Module
The FL inverter board and

display mask above the LCD
module must be removed to
access the LCD Module.

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4 Replacement Procedures 4.1 General

Safety Precautions

Before you begin disassembly, read the following safety precautions and observe them carefully
as you work.

DANGER: 1. Always use the genuine battery that is authorized by Toshiba or compatible

with the unit. Since other battery packs have different specifications, they
may be incompatible with the unit, and may burst or explode.
Never heat or disassemble the battery pack, as that could cause leakage of
alkaline solution. Never throw the battery pack into a fire, as that could
cause the battery pack to explode.

2. The power supply, FL inverter and other components carry high voltages.
If you need to turn on the power of a partially disassembled computer to
check its operation, be very careful not to touch connectors or components,
in order to avoid the risk of electric shock.
Also, do not disassemble individual components in first-level maintenance.

WARNING: 1. Turn off the power and disconnect the AC adaptor from the power source,

to avoid exposure to electric shock.

2. Batteries in the computer retain an electrical charge, so there is danger of
electrical shock even when the computer is disconnected from an AC power
source. Remove any metal jewelry or accessories such as necklaces,
bracelets or rings, in order to reduce the risk of electric shock. Never work
with wet or damp hands.

3. Be careful of edges and corners as these may cut.

CAUTION: 1. When you change a component, be sure the replacement component meets

the required specifications. Never use foreign parts, to avoid any risk of
damage to the computer.

2. To avoid any risk of short-circuit, fire or other internal damage, never
allow any metal objects such as screws or paper clips to fall into the unit.
Be sure to replace screws with the same size as those removed. Make sure
all screws are securely fastened. Loose screws can cause short circuits,
resulting in heat, smoke or fire.

3. Before lifting out an FRU or other component, make sure all cables to the
component have been disconnected, in order to reduce the risk of
accidental electric shock.

4. If you use AC power, be sure to use the cable that came with the computer
or one recommended by Toshiba.

5. Make sure that all replacement components meet the specifications for the
computer and that all cables and connectors are securely fastened, in order
to avoid the risk of electric shock.

6. Some parts inside the computer, such as the CPU and cooling module,
become very hot during operation. Conduct repair work after they have
cooled. Be careful around the CPU and cooling module to avoid burns.

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4.1 General 4 Replacement Procedures

Before You Begin

Look over the procedures in this section before you begin disassembling the computer.
Familiarize yourself with the disassembly and reassembly steps. Begin each procedure by
removing the AC adapter and the battery pack as instructed in this section:

1. Do not disassemble the computer unless it is operating abnormally.

2. Use only the correct and approved tools.

3. Make sure the working environment is free from the following elements whether you are
using or storing the computer.

 Dust and contaminates
 Static electricity
 Extreme heat, cold and humidity

4. Make sure the FRU you are replacing is causing the abnormal operation by performing
the necessary diagnostics tests described in this manual.

5. Do not perform any operations that are not necessary and use only the described
procedures for disassembling and installing FRUs in the computer.

6. After removing parts from the computer, place them in a safe place away from the
computer so they will not be damaged and will not interfere with your work.

7. You will remove and replace many screws when you disassemble the computer. When
you remove screws, make sure they are placed in a safe place and identified with the
correct parts.

8. When assembling the computer make sure you use the correct screws to secure the
various pieces in place. Screw sizes are listed in their corresponding figures.

9. The computer contains many sharp edges and corners, so be careful not to injure
yourself.

10. After you have replaced an FRU, make sure the computer is functioning properly by
performing the appropriate test on the FRU you have fixed or replaced.

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4 Replacement Procedures 4.1 General

Disassembly Procedures

The computer has two basic types of cable connectors:

 Pressure Plate Connectors

 Normal Pin Connectors

To disconnect a Pressure Plate connector, lift up the tabs on either side of the connector’s
plastic pressure plate and slide the cable out of the connector. To connect the cable to a
Pressure Plate connector, make sure the pressure plate is fully lifted and slide the cable into the
connector. Secure the cable in place by pushing the sides of the pressure plate down so the
plate is flush with the sides of the connector. Gently pull on the cable to make sure the cable is
secure. If you pull out the connector, connect it again making sure the connector’s pressure
plate is fully lifted when you insert the cable.

Standard pin connectors are used with all other cables. These connectors can be connected and
disconnected by simply pulling them apart or pushing them together.

Assembly Procedures

After you have disassembled the computer and fixed or repaired the problem that was causing
the computer to operate abnormally, you will need to reassemble the computer.

Install all the removed FRUs following the steps described in the corresponding sections in this
chapter.

While assembling the computer, remember the following general points:

 Take your time, making sure you follow the instructions closely. Most problems

arise when you get in a hurry assembling the computer.

 Make sure all cables and connectors are securely fastened.

 Before securing the FRU or other parts, make sure that no cables will be pinched by

screws or the FRU.

 Check that all latches are closed securely in place.

 Make sure all the correct screws are used to secure all FRUs. Using the wrong

screw can either damage the threads on the screw or the head of the screw and may
prevent proper seating of an FRU.

After installing an FRU in the computer, confirm that the FRU and the computer are functioning
properly.

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4.1 General 4 Replacement Procedures

Tools and Equipment

The use of Electrostatic Discharge (ESD) equipment is very important for your safety and the
safety of those around you. Proper use of these devices will increase the success rate of your
repairs and lower the cost for damaged or destroyed parts. The following equipment is
necessary to disassemble and reassemble the computer:

 One M2 point size 0 Phillips screwdriver to remove and replace screws.

 One 4 mm flat-blade screwdriver.

 Tweezers, to lift out screws that you cannot grasp with your fingers.

 ESD mats for the floor and the table you are working on.

 An ESD wrist strap or heel grounder.

 Anti-static carpeting or flooring.

 Air ionizers in highly static sensitive areas.

 Plastic card of the size of credit card.

 One LH-STIX screw driver

 Tools for disconnecting Antenna cable

 Tweezers.

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4 Replacement Procedures 4.1 General

Screw Tightening Torque

When you fasten screws, be sure to follow the torque list below.

CAUTION: Overtightening can damage components and screws; undertightening can

result in electrical shorts or other damage if screws or components come loose.

NOTE: Toshiba recommends that you use an electric screw driver for quick and easy

operations.

 M2 0.17 N·m (1.7 kgf·cm)

 M2.5 0.30 N·m (3.0 kgf·cm)

 FDD 0.22 N･m (2.2 kgf･cm)

 HDD 0.3 N･m (3.1 kgf･cm) or less

 LCD (internal use) 0.176 N･m ± 0.22 N･m

NOTE: The computer contains several flat-head screws. These screws have less contact

area with the screwdriver, so be careful to press firmly enough to prevent the
screwdriver from slipping out and damaging the screw head.

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4.1 General 4 Replacement Procedures

Color of Screw Shaft

To avoid mistakes on the screw length, screw shafts are colored as follows:

❑ Even number length screw: brown
❑ Odd number length screw: white
❑ Special length screw: blue

Screws whose lengths are indicated to one or more decimal places such as 2.5 mm or

2.8 mm.

Marking of Screws on the Computer Body

To make maintenance of the computer easier, markings of the kinds of the screws including the
types and lengths of the screws are indicated on the computer body.

Kind of screws Symbol

❑ Bind screw B
❑ Flat-head screw F
❑ Super flat-head screw S
❑ Tapping screw T
❑ Other screws

(Unique screws, stud, etc.) U

Examples:

❑ 6 mm bind screw B6
❑ 12 mm bind screw B12
❑ 5 mm stud U5

(Indicates the screwed length in round number regardless the length of the stud.)

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4 Replacement Procedures 4.1 General

Removing the Battery Pack

To remove the battery pack, follow the steps below and refer to figure 4-1.

CAUTION: When handling battery packs, be careful not to short circuit the terminals. Also

do not drop, hit or otherwise apply impact; do not scratch or break the casing
and do not twist or bend the battery pack.

1. Turn the computer upside down with the back of the computer facing you.

2. Lift up the battery lock and slide the battery release latch to free the battery pack for
removal.

3. Pull the battery pack forward to remove it.

NOTE: For environmental reasons, do not throw away a spent battery pack. Please follow

local ordinances or regulations for its disposal.

Figure 4-1 Removing the battery pack

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4.1 General 4 Replacement Procedures

Installing the Battery Pack

To install the battery pack, follow the steps below and refer to figure 4-1.

CAUTION: The battery pack is a lithium ion battery which can explode if not properly

replaced, used, handled or disposed of. Dispose of the battery as required by
local ordinances or regulations. Use only batteries recommended by Toshiba
as replacements.

NOTE: Check the battery's terminals visually. If they are dirty, wipe them clean with a dry

cloth.

1. Seat a new or recharged battery pack.

2. Secure the battery lock.

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4 Replacement Procedures 4.1 General

Removing the Optional PC Card

To remove the PC Card (option), make sure the computer is in boot mode, then follow the steps
below and refer to figure 4-2.

CAUTION: Before you remove a PC Card, refer to the card's documentation and to your

operating system documentation for proper procedures and precautions.

1. Press the eject button of the PC card you want to remove to extend the button.

2. Press the extended eject button to pop the card out slightly.

3. Grasp the PC card and remove it.

4. When the eject button is pressed again, it is put in.

Figure 4-2 Removing a PC Card

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4.1 General 4 Replacement Procedures

Installing the Optional PC Card

To install the PC card (option), follow the steps below and refer to figure 4-2.

1. Make sure that the eject button is out.

2. Insert the PC card. Press gently to ensure a firm connection.

Removing the Optional SD Card

To remove the SD Card (option), make sure the computer is in boot mode, then follow the steps
below and refer to figure 4-3.

CAUTION: Before you remove an SD Card, refer to the card's documentation and to your

operating system documentation for proper procedures and precautions.

1. Push in the SD card and release it to pop the card out slightly.

2. Grasp the SD card and remove it.

Figure 4-3 Removing a SD Card

Installing the Optional SD Card

To install the SD Card (option), follow the steps below and refer to figure 4-3.

1. Insert the SD card.

2. Press gently to ensure a firm connection.

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4 Replacement Procedures 4.2 HDD

4.2 HDD

Removing the HDD

CAUTION: Be very careful not to press on the top or bottom of

the HDD. Pressure can destroy data or damage the
drive.

To remove the HDD, follow the steps below and refer to figures 4-4 to 4-7.

1. Turn the computer upside down.

2. Remove two M2×4 silver screws securing the HDD cover.

3. Lift off the HDD cover.

Figure 4-4 Removing the HDD cover

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4.2 HDD 4 Replacement Procedures

4. Grasp the plastic tab on the HDD. As indicated by the arrow, pull to disconnect the
HDD from PJ1800 on the system board, then pull the HDD.

Figure 4-5 Removing the HDD pack

NOTE: The following steps describe how to disassemble the HDD pack; however, do not

disassemble if the HDD is working properly.

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4 Replacement Procedures 4.2 HDD

5. Place the HDD pack on a flat surface and remove four M3×4 flat-head screws.

6. Remove the HDD bracket.

Figure 4-6 Removing screws and HDD bracket

7. Remove the connector.

CAUTION: Do not apply pressure to the top or bottom of the HDD.

Figure 4-7 Removing the connector

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4.2 HDD 4 Replacement Procedures

Installing the HDD

To install the HDD, follow the steps below and refer to figures 4-4 to 4-7.

CAUTION: Don't hold the HDD by its top and bottom flat surfaces.
It may damage the HDD.

1. Connect the connector.

2. Seat the HDD bracket.

3. Secure four M3×4 flat-head screws.

CAUTION: Do not apply pressure to the middle part of the HDD pack.
It may damage the HDD bracket. Hold the HDD by its corners.

4. Hold the HDD pack by its corners, insert and press it into the computer, to fit the
connector of the HDD pack into the connector of the computer.

5. Insert the white plastic tab into the gap between the computer top cover and HDD, and
seat the cover.

6. Secure the HDD cover with two M2×4 silver screws.

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4 Replacement Procedures 4.3 Slim Select Bay Options

4.3 Slim Select Bay Options

Removing the Slim Select Bay Options

NOTE: This section explains how to change modules in the Slim Select Bay. The

illustration shows replacement of the DVD-ROM drive as an example. The
procedures are the same for any of the modules: DVD-ROM drive, CD-RW/DVD­ROM drive, optional Slim Select Bay HDD adaptor or optional secondary battery
pack with separate tray.

To remove the Slim Select Bay module, follow the steps below and refer to figure 4-8.

1. Turn the computer upside down.

2. Slide the Slim Select Bay latch to the unlock position.

3. Grasp the DVD-ROM drive and slide it out.

Figure 4-8 Removing a Slim Select bay module

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