Fic a440 Service Manual G-CHAP5
Chapter
Maintenance & Disassembly
5
5.1
5.1 Introduction
5.15.1
This section contains preventive and corrective maintenance procedures for the A440 Series
notebook. The first part of the section describes the computer cleaning procedures and
preferred handling procedures for sensitive components (e.g. disk drives, LCD, CPU,
batteries).
The second part of the chapter identifies all field replaceable parts with the remainder
explaining the removal and replacement procedures for the field replaceable parts.
5.2
5.2 Preventive Maintenance
5.25.2
Preventive maintenance is limited to cleaning the plastic case, the keyboard, and the display
screen and cleaning the floppy drive heads as required.
5.2.1 Cleaning the Computer
When it is necessary to clean the plastic case and keyboard, use a soft lint-free cloth, slightly
dampened with a mild detergent solution, or use the contents of any commercially available
computer cleaning kit.
Introduction
IntroductionIntroduction
Preventive Maintenance
Preventive MaintenancePreventive Maintenance
5.2.2 Protecting the Disk Drives
To protect the disk drives and data, back up the system disk periodically on floppy diskettes.
Periodically use a head-cleaning diskette in the floppy diskette drive to prolong the life of the
drive and to help maintain data integrity.
5.2.3 Maintaining the LCD Quality
When it comes to screen problems, heat plays a big part. After a good working session, the
typical routine is to shut the machine and close the cover. But the display surface - no matter
what type it is - and the components inside the computer radiates heat; when you close the
cover, you trap the heat against the screen. Leave the computer's cover open for about ten
minutes while the heat disperses. Make this a habit.
Never use alcohol, petroleum-based solvents, or harsh detergents to clean the
notebook. Also, do not spray any liquids directly on the computer case,
keyboard, or screen. If the liquid-crystal display (LCD) screen has become
smeared or dusty, clean the screen by first applying a mild glass cleaner to a
soft, clean, lint-free cloth, and gently wipe the glass. Never apply liquids directly
on the screen surface. Moreover, do not use paper towels to clean the display
screen. Paper can scratch the display screen matte.
FIC A450 Series Service Manual 5-1
Maintenance & Disassembly
5.2.4 Maintaining the Hard Disk Drive
The hard disk drive is one of the most common parts that always gets problem. Here is some
preventive maintenance that you can do when handling the hard disk.
Always back up the data files from the hard disk.
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Run a virus detecting program for possible virus infected area on the hard disk.
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Use
•
•
•
•
SCANDISK
(FAT). This will also free up space from any unused sectors.
Never turn the computer off when the hard disk is being accessed.
Never move or raise the computer while the hard disk is being accessed, most especially
don't jar the hard disk as this may cause a hard disk crash.
Use hard disk system tools like
your hard disk by eliminating fragmentation and improves the hard disk access time.
to correct any errors found in the directory and File Allocation Table
Disk Defragmenter
under Windows. This reorganizes
5.2.5 Handling the Computer Battery Packs
The battery packs furnished with the computer require reasonable care and handling to ensure
efficient operation and maximum life. Periodically inspect the battery terminals and the
batteries for evidence of corrosion and oxide build-up.
To ensure that the battery packs endure normal life cycle, always observe the following
precautions when handling the battery packs:
Do not drop the battery packs or subject them to excessive shock and vibration.
•
Do not expose the battery packs to direct sunlight, moisture, or chemical compounds.
•
Do not disassemble the battery packs.
•
Do not use the battery packs to power other devices.
•
Do not short the battery leads or connect the battery with reversed polarity.
•
Never attempt to charge the battery packs in any way other than as described in this
•
manual and the User’s Manual.
Always charge the battery packs as soon as possible after a low battery indication.
•
5-2 FIC A440 Series Service Manual
Maintenance & Disassembly
5.3
5.3 Required Tools and Equipment
5.35.3
To troubleshoot and repair PC systems properly, you need a few basic tools:
•
•
•
•
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Required Tools and Equipment
Required Tools and EquipmentRequired Tools and Equipment
Tweezers
Small flat-blade screwdriver
Small Phillips screwdriver
Regular size Phillips screwdriver
Small Hex-bolt screwdriver
5.4
5.4 Notebook Field
5.45.4
The notebook contains two major assemblies: The Cover Display LCD Assembly and the
System Unit Assembly.
All boards, options, and peripherals contain components that are sensitive to
static electricity. When handling any of these items, use wrist or ankle grounding
straps and grounded working mats. When moving or storing items, use the antistatic bags supplied with the items.
Notebook Field----Replaceable Parts and Assemblies
Notebook FieldNotebook Field
Cover Display
LCD Assembly
Replaceable Parts and Assemblies
Replaceable Parts and AssembliesReplaceable Parts and Assemblies
System Unit
Assembly
Status LED Panel
q
Air Cooling Vent
t
Color LCD Panel
n
r
u
Figure 5-1 Cover Display and System Unit Assembly
Email / Browser Buttons
Power Button
Power/Charge LEDs
Glidepad
Keyboard
o/p
s
v/w
5.4.1 Cover-Display LCD assembly
The Cover-Display LCD Assembly includes the following major field replaceable units/parts
(FRUs):
• LCD Face and Back Panel Cover
These parts are used to cover the whole LCD Panel assembly, which includes the LCD
Display Module, the LCD FPC cables, and inverter board.
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Maintenance & Disassembly
• LCD Display Module
12.1”/13.3”/14.1” LCD (Liquid Crystal Display) screen used for output display. This part
is assembled together with LCD Power Inverter Board, and LCD cables contained inside
the whole LCD Panel. Handle this part with care against static electricity and accidents
that can break the LCD.
• LCD Power Inverter Board
This part or PCB (Printed Circuit Board) is used to provide high voltage to the CCFT
(Cold Cathode Fluorescent Tube) of the notebook’s LCD backlighting. It is connected to
the right side of the LCD display screen and attached to the back panel by a screw.
Exercise safety electrical precautions in handling and servicing this part. The circuit board
also includes the function for displaying the power status and battery charge LED
indicators.
• LCD FPC Cable
The LCD FPC cable is used to convert output signals from the motherboard in driving the
LCD display screen. The cable is connected to the back of the LCD Panel.
5.4.2 System Unit Assembly
The System Unit Assembly comprise of several assemblies of which can be divided into two
major sub-assemblies.
The System Top Unit Assembly.
•
The System Base Unit Assembly.
•
The following System Top Unit Assembly includes the following major field replaceable
units/parts (FRUs):
• Glidepad Touchpad Module Assembly
The touchpad (glidepad) pointing device module is assembled at the underside of the
Palm-rest case with the sensor pad exposed on the top. The assembly comprises of the
glidepad board, the glidepad converter board, the select buttons bracket casing, the
insulator sheet, the glidepad FPC cable, and the glidepad wire cable. The glidepad board
is assembled just underneath the select button assembly. It provides a FPC cable
connector for the glidepad converter board. The converter board on the other hand
provides the wire cable connector to the audio board of the system unit.
• Keyboard Panel Assembly
The keyboard is assembled on top of the system unit and connected to the I/O board’s
keyboard FPC type connector. The keyboard is also secured on the system’s top unit
casing. There are no screws attached to the keyboard.
• Heat Plate and Fan Exhaust Unit
The Fan Exhaust unit is assembled on the right side of the system unit. It comprises of a
heat plate and one fan. There are four screws securing the heat plate to the CPU module
inserted on the motherboard. The exhaust fan is secured underneath the heat plate using
two small screws.
5-4 FIC A440 Series Service Manual
Maintenance & Disassembly
• System Upper Unit Case Assembly
The system upper unit case assembly is a thin bracket for holding the keyboard and heat
plate as well as covering the base unit. It is also where you attached the LCD panel
through the hinge sections and includes the power button and status LED cover moldings.
The following System Base Unit Assembly includes the following major field replaceable
units/parts (FRUs):
• Battery Pack
This is one of the more easily replaceable parts. The battery pack is found on the right
side on the base unit and can be easily removed by pressing the latch underneath the unit
and pulling the battery on its handle. The battery pack is replaced as a whole and must not
be opened for repair.
• Hard Disk Drive Module
The Hard Disk Drive is attached on the front left side of the system base unit located just
above the floppy disk drive assembly. The HDD is secured by a steel bracket and one
screw. The HDD module is a 2.5-inch hard disk drive with a maximum height of
12.7mm. The hard drive module assembly is attached to the motherboard through the
HDD board connector that plugs into the I/O board.
• I/O Board + Charger Board
The I/O board is a daughter board attached to the system main board or motherboard.
This I/O board also has the charger board attached to it underneath. The I/O board
provides connections for the hard drive, floppy drive, and keyboard. The I/O board also
includes the cover switch for activating STR mode when the LCD cover is closed.
The charger board, on the other hand, provides the circuitry for charging the battery. It is
attached on the underneath the I/O board and can be separated from it. You need to
remove the I/O board first before you can see the charger board.
• Audio Board
The audio board is a daughter board that is attached to the system main board or
motherboard through a connector near the PCMCIA connector. The audio board sits on
top of the battery pack compartment and is just on the right side of the I/O board. This
board provides connections for the internal microphone, speakers, CMOS battery, and
glidepad. It also includes the external audio ports for connecting external audio devices.
• CD-ROM / DVD-ROM Drive Assembly
The CD-ROM / DVD-ROM Drive Assembly is attached on the left end side of the base
unit and is only secured with one screw. The drive module includes a metal bracket (left
and right) with two screws securing each bracket.
• Floppy Disk Drive Assembly
The Floppy Drive assembly is located at the front left side of the base unit just underneath
the hard disk drive assembly. It is assembled to the unit with one screw secured on the
lower left corner. The module consists of the metal bracket with four screws, insulation
sheet, FDD FPC cable, and the floppy drive.
FIC A440 Series Service Manual 5-5
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