Acer Extensa 570 Mantenance Manual

·Try rebooting the system (Ctrl-Alt-Del
); restore system from diskettes, if
necessary.
·If the computer is capable of running the Setup program; check the
serial and parallel port configurations, and other features that may
affect system operation.
·Run Diagnostics to further isolate problem area (refer to Paragraph
5.3.5).
·For indicated hardware failures, cycle power and repeat self test to
verify that a hard failure has occurred.
·Remove and replace suspect hardware (as described in Section 6 of...

·Check to see that the battery pack is installed correctly (try using a
recharged battery pack if  battery is discharged)
·If the AC outlet voltage, AC Adapter, and battery packs test normal but
the computer will not power up, replace the Power Supply Board and/or
Battery Board as described in Section 6.
 
MAIN BOARD
SYSTEM &
SVGA BIOS
INTERNAL 1.44 MB
FLOPPY DISK DRIVE
PARALLEL
PRINTER PORT
Super I/O
Control ler
RS232
SERIAL PORTDrivers/
Receivers
Expansion Bus
Connector
PCMCIA Adapter
UM8365A
SIR
In...

5.3.2Troubleshooting a Display Problem
If the LCD remains blank when you turn on the computer, and the status
ICONs light on the Status display panel above the keyboard, check the
following controls on the display:
·LCD standby mode - If the LCD backlight remains off, even with the
Contrast Control set to its highest position, the LCD may be in Standby
Mode
. Press the Power
 button to power up the system.
·Notebook Set for External Monitor - use CMOS Setup to reset notebook.
·LCD - Replace the...

·Faulty phone line - Connect a telephone to the line and listen for a dial
tone.
·Software program - Check to ensure that you have installed the
software correctly.
·I/O Address Conflict - The multimedia sound capability of the Extensa
uses I/O address 220. However, this may conflict with some third-party
PCMCIA cards like the IBM Token Ring card. In this case, reset the
Extensa multimedia sound to I/O address 240 as shown in Figure 5-3.
5.3.5Fault Isolation Using Diagnostics
PC-Doctor supplied with the...

allocating and using system memory, IRQ and DMA use, what device drivers
are installed, what COM and LPT ports are assigned and what ports are
available, identifying partitioning data for fixed disk drive(s), determining
the SVGA setup information, reading the software interrupts/interrupt
vectors, etc.
Functionally, PC-Doctor includes the following: 
·Group of nine non-interactive diagnostic tests that perform a
non-destructive test of the major hardware functions in the notebook
(Processor, Memory,...

·Other devices (Sound card, PCMCIA options, etc.)
Interactive Tests
The PC-Doctor diagnostic test includes a suite of seven Interactive tests that
require operator input during the course of the test. The Interactive Tests
category includes:
·Keyboard
 - tests the keyboard keys, LEDs and repeat
function
·Video 
- tests the LCD and external SVGA character sets, and
colors.
·Speaker
- tests the volume response at different frequencies.
·Mouse 
- tests the mouse driver, buttons and functionality
·Joystick...

5.3.5.1  User Interface to PC-Doctor
PC-Doctor is structured as a text mode, window user interface with
pull-down menus. Program operation requires the use of the following keys:
·Cursor Keys - move the highlighted pointer
·Enter Key - Selects the highlighted option
·Esc Key - Cancels current function and goes back one step
·F1 Key - Activates the context-sensitive help feature (pressing F1
 twice
in a row calls up the online Technical Reference Manual for PC-Doctor)
Scrolling windows, which show the...

5.3.5.3  Running PC-Doctor
PC-Doctor is a DOS-resident program that can be run from either hard disk
or from the bootable diskette you previously created.
1
. From the C:\ prompt change directory (type CD C:\PCDR
) and press
Enter
.
2
.       The Diagnostics Program loads into system memory, and the LCD
displays the diagnostics Header.
n
Note: 
 There are a number of command-line switches that can be entered
when starting up PC-Doctor to enable automatic virus scanning, enable
loopback testing of...

6
Field Service
6.1Introduction
This section contains preventive and corrective maintenance procedures for
the Extensa 57x Series Notebook Computers. The first part of the section
describes the computer cleaning procedures and preferred handling
procedures for sensitive components (e.g. disk drives, batteries).
The second part of the section identifies all field-replaceable parts; the
remainder of the section contains removal and replacement procedures for
the field-replaceable parts.
6.2Preventive...

6.2.3Handling the Computer Battery Pack
The battery pack furnished with the computer requires 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; clean if necessary.
To ensure that the battery pack endures a normal life cycle, always observe
the following precautions when handling the battery pack:
·Do not drop the battery pack or subject it to excessive shock and...