FIC a440 Servicehandbuch
Maintenance & Disassembly
5-4
FIC A440 Series Service Manual
• 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.
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.
(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.
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.
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.
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.
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.
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.