Toshiba satellite A20 series Maintenance Manual page 206

4.1 General
4 Replacement Procedures
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 and optional
SD card, 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.
4.2 Battery
4.3 4.4
4.5
PC SD
HDD
Card Card
4.6
MDC
4.14 Top Cover with Display Assembly
4.15
4.16
4.17
Touch
Front
USB
Pad
Membrane
Board
ASSY
4.21 System Board
4.23 PC Card Slot
4.22 Sub Fan
How to See the Chart
Two examples of
referring to the chart are
shown below.
Removing the System
Board
First, 4.1 Bttery to 4.13
Bluetooth must be
removed. Then remove
the Top Cover with
Display Assembly, 4.16
Touch Pad to 4.21 DC-IN
Jack to remove the
System Board.
Satellite A20 Maintenance Manual (960-444)
4.8 4.10 Keyboard
4.7
Cooling Fan
Select
Bay
4.11
4.9
module
Memory
CPU
4.20
4.18 4.19
DC-IN
Sound RTC
Jack
Board Battery
4.24 Speakers
4.2 Battery
4.3 4.4 4.5
4.7
PC SD HDD
Select
Card
Card
Bay
4.6
module
MDC
4.14 Top Cover with Display Assembly
4.18
4.15 4.16
4.17
Sound
Touch Front
USB
Board
Pad
Membrane
Board
ASSY
4.21 System Board
4.22 Sub Fan
4.23 PC Card Slot
4 Replacement Procedures
4.13
4.12
Bluetooth
Wireless LAN
4.26 Display Mask
4.25
Touch
Pad 4.27 FL Inverter
Switch
4.28 LCD Module
4.29
Wireless LAN Antenna/Bluetooth
Antenna/Desplay Cover
4.8 Cooling
4.10 Keyboard
Fan
4.11 4.12
4.9
Memory Wireless
CPU
LAN
4.20
4.19
4.25
DC-IN
RTC
Touch
Jack
Battery
Pad
Switch
4.24 Speakers
4.13
Bluetooth
4.26 Display Mask
4.27 FL Inverter
4.28 LCD Module
4.29
Wireless LAN Antenna/
Bluetooth Antenna
/Display Cover
4-1