Acer Extensa 570 Mantenance Manual

							1.4Product Overview
All members of the Extensa 57x Series are high performance notebooks
powered by the PentiumÔ Processor and Windows 95 Operating System
software.
As a standard feature, all members of the Extensa 57x family also contain
the following features:
·100 MHz Pentium Processor with 16K Internal Cache Memory.
·8 MB of RAM memory standard, user-expandable to 40 MB (easy access
via door at bottom of notebook).
·256 KB L2 Cache.
·128 bytes of battery-backed up CMOS RAM.
·High performance PCI (Peripheral Component Interconnect) Bus
Architecture; PCI Bus Expansion port for use with optional Expansion
System.
·Removable Hard Disk Drive (810 or 1200 million byte capacity).
·Removable 1.44 MB Floppy Drive (interchangeable with optional
CD-ROM Drive or Lithium-Ion secondary battery pack).
·Two PCMCIA option slots (one slot accepts one Type I/II option and the
second slot accepts either a Type I, II, or III device).
·Ergonomic keyboard with palm rest (2.7 mm travel); built-in glidepad
pointing device and palm rest below the keyboard.
·Built-in support for a CD-ROM drive (4X or 6X speed).
·Built-in 16-bit stereo sound system (including stereo speakers and
internal microphone)
·Removable 3.5 inch, 1.44 MB Floppy Drive (interchangeable with
second Lithium-Ion battery or CD-ROM option).
·Choice of LCD displays: 10.4 inch Active Matrix (TFT), SVGA Color LCD
or 11.3 inch, dual scan, SVGA color LCD; 1 MB video RAM.
·Support for internal SVGA LCD display only, external SVGA Monitor
only, or simultaneous SVGA LCD and external SVGA monitor.
·LCD Status Panel displays icons to indicate when AC adapter is plugged
in, power savings mode is on, battery in use (blinks if battery is low),
floppy drive in use, hard disk activity indicator, PCMCIA cards installed,
CD-ROM drive activity, and keyboard modes (e.g.. Num Lock, Caps
Lock, Scroll Lock, Pad Lock etc.).
        
 General  Description 1-3 
						

							·AC Adapter with autosensing (100 VAC to 240 VAC, 50 to 60 Hz); 36
Watts of DC output power.
·8.4 Volt, 4200 mAH capacity, Nickel-Metal Hydride (NiMH) primary
battery pack.
·Provisions for secondary 10.8 Volt Lithium-Ion Battery Pack in Floppy
Drive cavity (if Floppy Drive or CD ROM Player not installed).
·Power management features for longer portable operation away from AC
power.
·Full range of external ports including: EPP/ECP Parallel Port, Serial
Port, External VGA Port, PS/2Ô
 Port, and Serial Infrared Port. All
Models of the 57x family include Audio In/Out and Microphone In jacks.
Full function Keyboard
Power ON/OFF
ButtonStatus LCD Display
Cover Release Latch
Glidepad
Mouse Device PCMCIA Type I/II
Option 
Power Input 
from AC Adapter
TFT or Dual Scan Color
Display Assembly
Mouse Select
Switches
PCMCIA Type III or
two PCMCIA Type I/II Options
Rear Connector Doors
Audio Connectors
Floppy Drive
or CD-ROM
or Lithium-Ion 
Battery Pack
Removable Hard
Disk Drive
Figure 1-2  Extensa 57X Series Features
      
1-4 
 General  Description 
						

							1.4.1External Ports
As shown in Figure 1-3, the notebook computer contains the following
external ports:
·Serial Infrared (SIR) Port for wireless connection with a similarly
equipped printer or computer
·9-Pin Serial Port for attaching any RS-232 type serial device to the
Notebook
·15-Pin External VGA Monitor Port for attaching an external monitor
·6-Pin PS/2 Port to attach an external Keyboard or Mouse
·Audio In/Out and External Microphone Input
·Expansion Bus Port for attaching an external expansion system
Serial
Infrared
Port
Audio Line
In/Out/Mic InParallel
PortSerial
PortExternal
VGA PortConnector for
External Expansion
SystemPS/2 Port
Figure 1-3  Notebook External Ports
        
 General  Description 1-5 
						

							1.4.2Glidepad Pointing Device
All members of the Extensa 57x family feature a built-in glidepad pointing
device located near the center of the keyboard’s palmrest. With light finger
pressure, the cursor can quickly be positioned to the desired point; a quick
double tap on the glidepad and you have selected an object. Two select
buttons (switches) are located along the front edge of the notebook for use in
the traditional select/drag features of a mouse device.
.
1.4.3Keyboard
The Extensa 57x Series Keyboard is a full function keyboard with the
standard character and function keys plus 12 programmable function keys
(F1 through F12).
Using the Special Function (Fn
) key which assigns multiple functions to
keys, the keyboard can emulate IBM
® 101/102 keyboards.
The notebook keyboard is available in two basic versions:
·U.S. English - This version (also known as the domestic version) is
generally used in the United States and Canada.
·U.K. English/Custom International Version - This version is adapted
(using appropriate keycap changes) for the international countries listed
in Table 1-2.
Glidepad
Select Buttons
Figure 1-4  Extensa 57X Series Glidepad
      
1-6 
 General  Description 
						

							nNote:
 The Extensa Series Notebook Computer User’s Reference Manual con-
tains descriptions of keyboard special function keys.
1.4.3.1 Controls and Indicators
The Extensa 57x contains a Power Button and a Status LCD just above the
keyboard. All notebook functions (except the power On/Off function) are
controlled by keyboard keys in conjunction with the Fn
 key.
1.4.4 Standard Power Features
Notebook power for the Extensa 57x Series Notebook Computers is provided
by an AC Adapter and a rechargeable nickel metal hydride (NiMH) battery
pack that installs in a power bay near the front of the notebook (right side). 
A second lithium ion battery may optionally be installed in the Floppy Drive
bay when the Floppy Drive is removed from the Notebook.
All members of the Extensa 57x family feature a power management
subsystem (hardware and software) that provides for longer portable
operation and protection of files during low battery conditions.
n
Note
: The Nickel Metal Hydride (NiMH) battery requires periodic battery con-
ditioning in order to charge to full capacity. To accomplish this, remove the
AC Adapter and the secondary battery pack (if installed). Allow the notebook
to deep discharge. Then, recharge to full capacity. The secondary battery
pack is a Lithium-Ion type that does not require conditioning.
QTY[{
]}
CapsLock
12
@
345%6^ 
Shift
F5F4
Enter
Esc
F1F1 1F1 0 F9F8F7F6Prt  Sc
SysRqNumLk
PadF2F3
089PgUp7 &Home
4U
* 9
F12
P
Home Scroll
LockBackspace
Pause
Break
PgUp |
\
PgDn
In sAltDelFnAltCtrl~
`
Tab
ShiftZEndXC
V
BNM
Ins
Del
DFGH
6O
.
/
8
7
S
RE
A
W5I
LJK
EndPgOn 1
23
Figure 1-5  Extensa Keyboard
        
 General  Description 1-7 
						

							1.4.5Wireless Connection With Serial Infrared Port
The Extensa Series notebooks are equipped with a Serial Infrared (IR) port
that offers wireless communication with a variety of IRDAÔ compliant
devices made by other manufacturers.
n
Note
: Prior to communicating with an external device equipped with a serial
infrared interface, the appropriate third-party drivers must be installed on
your notebook.
1.4.6Preloaded Software
All members of the Extensa 57x Notebook family are preloaded with the
Windows 95 Operating System. In addition, Extensa 575CD and 575 CDT
models come standard with the following application packages installed:
·MicrosoftÔ Works
·Quicken SE
·LotusÔ Organizer
·Microsoft Entertainment Pack No. 4
1.4.7 Notebook Expansion Capabilities
Expansion capabilities built into the Extensa notebook series include:
·User installable expansion RAM memory (to a maximum of 40 MB)
·By removing the floppy drive, you can add either a second battery pack
or CD-ROM Drive.
·Cable Connect PS/2 Numeric Keypad option, TI Part No. 2581381-0001,
or other PS/2 type device (e.g. keyboard or mouse) can be attached to
the PS/2 Port.
·A parallel device can be attached to the notebook’s external 25-pin
parallel port (EPP/ECP compatible).
·With one of the DockMate desktop expansion systems installed,
additional expansion ports are available 
      
1-8 
 General  Description 
						

							1.5Standard Test Features
The Extensa Series Notebook Computers use modular design and built-in
test features to reduce the mean time to repair. A  power on self  test
program automatically verifies the operational state of the primary circuits.
Also, the notebook contains a powerful suite of diagnostic tests called
PC-Doctor, (described in detail in Appendix B) that can perform additional
levels of diagnostic testing.
1.6Notebook Assemblies and
Subassemblies
The Extensa Series Notebooks are modular in design and can be
disassembled for maintenance purposes using a standard set of flat-bladed,
Phillips-head and hexagonal screwdrivers. The major assemblies that
comprise a typical notebook in the Extensa family are shown in Figure 1-6
and briefly described in the following paragraphs.
        
 General  Description 1-9 
						

							1.6.1Cover-Display Assembly
The Cover -Display Assembly contains the LCD screen and associated high
voltage power supply and video circuitry. The Cover -Display Assembly
contains several field-replaceable components including:
·LCD Assembly
·Inverter Board
·Bezel
·Hinge Covers
·Internal cables
Keyboard Assembly
Glidepad Assembly
IR/Sound BoardPower Supply Board
Display Cable Interface
Board
Main Board
Inverter Board
Display Assembly
Floppy
Drive/CD-ROM
BayStatus LCD
Assembly
Display Assembly
Figure 1-6  Notebook Assemblies
      
1-10 
 General  Description 
						

							1.6.2 System Base Assembly
As shown in Figure 1-6, the majority of the notebook’s field replaceable
units (FRUs) are located in the system base assembly. These FRUs include:
·Main Board Assembly
·Hard Disk Drive Assembly
·Up to two Dual Inline Memory Modules
·LCD Status Assembly 
·Floppy Drive Module
·IR/Sound Board Assembly
·Power Supply Board Assembly
·Battery Pack Assembly
·Top Case Assembly
·Glidepad Assembly
·Keyboard Assembly 
·CMOS Battery Assembly
·HDD Connector Board Assembly
1.7Extensa 57x Series Notebook
Specifications
Specifications for the Extensa 57x Series Notebooks are provided in Table
1-3.
        
 General  Description 1-11 
						

							Table 1-3 Extensa 57x Notebook Features
Specifications Models 570CD/575CDModels
570CDT/575CDT
Processor
Pentium 100 MHz Pentium 100 MHz
Memory
:
Standard:
8 MB 8 MB
Maximum: 
Cache:40 MB
256 KB L2 Cache40 MB
256 KB L2 Cache
Display
LCD Type:
11.3 inch, SVGA, Dual
Scan Color10.4 inch, SVGA, Dual
Scan Color/ Active
Matrix Color
Simultaneous
LCD/Ext. SVGAYe s Ye s
Video RAM Size:
1 MB 1 MB
Video Bus
PCI Bus with Graphics
AcceleratorPCI Bus with Graphics
Accelerator
Keyboard/Pointing
Device
Ergonomic Keyboard
Ye s Ye s
Built-In Glidepad
Ye s Ye s
Storage
Floppy Drive 
Module:3.5 inch, 1.44 MB 3.5 inch, 1.44 MB
Hard Drive
: 810 Million Bytes 1200 Million Bytes
CD-ROM Drive
4X or 6X Speed 4X or 6X Speed
Interfaces
Serial (RS-232) Port
Ye s  Ye s  
Parallel Port
(EPP/ECP)Ye s Ye s
External VGA Port
Ye s  Ye s  
External PS/2 Port
Ye s  Ye s  
Serial Infrared Port
Ye s Ye s
Expansion Bus
PCI, supports Port
Replicator optionPCI, supports Port
Replicator option
      
1-12 
 General  Description