Acer Extensa 510 Maintenance Manual

·Measure the voltage at the AC Outlet or plug in a known good appliance
(EG. a lamp) to verify that voltage is present. If the voltage is OK, try
replacing the AC Adapter
·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.
EXTERNAL
VGA MONITOR
MAIN...

 
5.3.2Troubleshooting a Display Problem
If the LCD remains blank when you turn on the computer, and the status
indicators light, check the following controls on the display (refer to Figure
3-1):
·LCD Standby mode - If the LCD backlight remains off, even with the
Brightness and Contrast Controls set to their highest positions (refer to
Section 3), the LCD may be in Standby Mode
. Press the Standby
 or
Power
 button to resume the system.
·Notebook Set for External Monitor - use CMOS Setup to reset...

·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.
5.3.5Fault Isolation Using Diagnostics 
PC-Doctor, supplied with the Extensa Series Notebooks, is a powerful
diagnostics tool that can help you scan an internal RAM system for viruses,
determine the hardware configuration of a local or remote system,
benchmark its performance, analyze the performance of all subsystems,
and perform a suite of...

·Group of special purpose utilities to run other tests from PC-Doctor,
perform a virus scan of the internal RAM system, edit configuration
files, surface scan hard drives, measure system performance, open a
DOS prompt, provides terminal access to devices connected to serial
ports, supports memory debug operations, enables remote operations,
permits deep discharge of notebook batteries and provides an extensive
test reporting function.
The PC-Doctor diagnostic program contains a group of nine...

·Printer Test
 - tests the operation of a connected printer
·SCSI Test 
- sends test codes to attached SCSI devices (requires use
of a Docking System with SCSI)
·CD-ROM Test 
- checks out any attached CD-ROM Drive (requires
attachment of a Docking System with CD-ROM capability)
5.3.5.2 Supporting Online Documentation 
The PC-Doctor Diagnostic contains the following online information sources: 
·Online Technical Manual
 - selected at any time by pressing the F1
 key
twice or by clicking on the Question...

5.3.5.3 Creating a Bootable Floppy Diskette
Prior to using PC-Doctor, create a bootable floppy diskette using the
following procedure:
1.  Power up the unit; when unit displays message, Starting Windows 95,
press F8
. Choose Command Prompt Only
 from menu.
2.  Using DOS, format a floppy diskette.
3. From the A:
 prompt, copy the basic MS-DOS files to the diskette using
the following command:
  Format A: /F:1440 /S 
  where the value 1440 is the capacity of the diskette (1.44 MB in this
  example).
4....

n
Note: 
 If PC-Doctor detects a virus, it will stop with an error message. You
must then use one of the standard virus detection and removal programs to
remove the virus.
5.3.5.5  Quitting PC-Doctor
To exit PC-Doctor, select the Quit
 pull down menu and then select the Quit
to DOS
 option.
n
Note: 
 For additional information, press F1 
twice to access the online Refer-
ence manual for PC-Doctor.
   
5-10 
Troubleshooting 

6
Field Service
6.1 Introduction
This section contains preventive and corrective maintenance procedures for
the Extensa 51x 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.
6.2 Preventive...

6.2.2 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.
6.2.3 Handling 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...

6.3 Required Tools and Equipment
All notebook computer corrective maintenance procedures can be performed
using the following tools:
·Tweezers
· Small flat-blade screwdriver
· Small Phillips screwdriver
· Hexagonal Screwdriver
· Plastic Stick
·Conductive mat/wrist or ankle grounding strap system for electrostatic
voltage protection.
c
Caution: All boards, options and peripherals contain components that
are sensitive to static electricity. When handling any of these items, pro-
tect against static...